Search Results: "dmn"

9 May 2024

Vincent Sanders: Bee to the blossom, moth to the flame; Each to his passion; what's in a name?

I like the sentiment of Helen Hunt Jackson in that quote and it generally applies double for computer system names. However I like to think when I named the first NetSurf VM host server phoenix fourteen years ago I captured the nature of its continuous cycle of replacement.
Image of the fourth phoenix server
We have been very fortunate to receive a donated server to replace the previous every few years and the very generous folks at Collabora continue to provide hosting for it.Recently I replaced the server for the third time. We once again were given a replacement by Huw Jones in the form of a SuperServer 6017R-TDAF system with dual Intel Xeon Ivy Bridge E5-2680v2 processors. There were even rack rails!

The project bought some NVMe drives and an adaptor cards and I attempted to arrange to swap out the server in January.

The old phoenixiii server being replaced
Here we come to the slight disadvantage of an informal arrangement where access to the system depends upon a busy third party. Unfortunately it took until May to arrange access (I must thank Vivek again for coming in on a Saturday to do this)

In the intervening time, once I realised access was going to become increasingly difficult, I decided to obtain as good a system as I could manage to reduce requirements for future access.

I turned to eBay and acquired a slightly more modern SuperServer with dual Intel Xeon Haswell E5-2680v3 processors which required purchase of 64G of new memory (Haswell is a DDR4 platform).

I had wanted to use Broadwell processors but this exceeded my budget and would only be a 10% performance uplift (The chassis, motherboard and memory cost 180 and another 50 for processors was just too much, maybe next time)

graph of cpu mark improvements in the phoenix servers over time
While making the decision on the processor selection I made a quick chart of previous processing capabilities (based on a passmark comparison) of phoenix servers and was startled to discover I needed a logarithmic vertical axis. Multi core performance of processors has improved at a startling rate in the last decade.

When the original replacement was donated I checked where the performance was limited and noticed it was mainly in disc access which is what prompted the upgrade to NVMe (2 gigabytes a second peek read throughput) which moved the bottleneck to the processors where, even with the upgrades, it remains.

I do not really know if there is a conclusion here beyond noting NetSurf is very fortunate as a project to have some generous benefactors both for donating hardware and hosting for which I know all the developers are grateful.

Now I just need to go and migrate a huge bunch of virtual machines and associated sysadmin to make use of these generous donations.

19 May 2017

Michael Prokop: Debian stretch: changes in util-linux #newinstretch

We re coming closer to the Debian/stretch stable release and similar to what we had with #newinwheezy and #newinjessie it s time for #newinstretch! Hideki Yamane already started the game by blogging about GitHub s Icon font, fonts-octicons and Arturo Borrero Gonzalez wrote a nice article about nftables in Debian/stretch. One package that isn t new but its tools are used by many of us is util-linux, providing many essential system utilities. We have util-linux v2.25.2 in Debian/jessie and in Debian/stretch there will be util-linux >=v2.29.2. There are many new options available and we also have a few new tools available. Tools that have been taken over from other packages New tools New features/options addpart (show or change the real-time scheduling attributes of a process): 
--reload reload prompts on running agetty instances
blkdiscard (discard the content of sectors on a device): 
-p, --step <num>    size of the discard iterations within the offset
-z, --zeroout       zero-fill rather than discard
chrt (show or change the real-time scheduling attributes of a process): 
-d, --deadline            set policy to SCHED_DEADLINE
-T, --sched-runtime <ns>  runtime parameter for DEADLINE
-P, --sched-period <ns>   period parameter for DEADLINE
-D, --sched-deadline <ns> deadline parameter for DEADLINE
fdformat (do a low-level formatting of a floppy disk): 
-f, --from <N>    start at the track N (default 0)
-t, --to <N>      stop at the track N
-r, --repair <N>  try to repair tracks failed during the verification (max N retries)
fdisk (display or manipulate a disk partition table): 
-B, --protect-boot            don't erase bootbits when creating a new label
-o, --output <list>           output columns
    --bytes                   print SIZE in bytes rather than in human readable format
-w, --wipe <mode>             wipe signatures (auto, always or never)
-W, --wipe-partitions <mode>  wipe signatures from new partitions (auto, always or never)
New available columns (for -o):
 gpt: Device Start End Sectors Size Type Type-UUID Attrs Name UUID
 dos: Device Start End Sectors Cylinders Size Type Id Attrs Boot End-C/H/S Start-C/H/S
 bsd: Slice Start End Sectors Cylinders Size Type Bsize Cpg Fsize
 sgi: Device Start End Sectors Cylinders Size Type Id Attrs
 sun: Device Start End Sectors Cylinders Size Type Id Flags
findmnt (find a (mounted) filesystem): 
-J, --json             use JSON output format
-M, --mountpoint <dir> the mountpoint directory
-x, --verify           verify mount table content (default is fstab)
    --verbose          print more details
flock (manage file locks from shell scripts): 
-F, --no-fork            execute command without forking
    --verbose            increase verbosity
getty (open a terminal and set its mode): 
--reload               reload prompts on running agetty instances
hwclock (query or set the hardware clock): 
--get            read hardware clock and print drift corrected result
--update-drift   update drift factor in /etc/adjtime (requires --set or --systohc)
ldattach (attach a line discipline to a serial line): 
-c, --intro-command <string>  intro sent before ldattach
-p, --pause <seconds>         pause between intro and ldattach
logger (enter messages into the system log): 
-e, --skip-empty         do not log empty lines when processing files
    --no-act             do everything except the write the log
    --octet-count        use rfc6587 octet counting
-S, --size <size>        maximum size for a single message
    --rfc3164            use the obsolete BSD syslog protocol
    --rfc5424[=<snip>]   use the syslog protocol (the default for remote);
                           <snip> can be notime, or notq, and/or nohost
    --sd-id <id>         rfc5424 structured data ID
    --sd-param <data>    rfc5424 structured data name=value
    --msgid <msgid>      set rfc5424 message id field
    --socket-errors[=<on off auto>] print connection errors when using Unix sockets
losetup (set up and control loop devices): 
-L, --nooverlap               avoid possible conflict between devices
    --direct-io[=<on off>]    open backing file with O_DIRECT 
-J, --json                    use JSON --list output format
New available --list column:
DIO  access backing file with direct-io
lsblk (list information about block devices): 
-J, --json           use JSON output format
New available columns (for --output):
HOTPLUG  removable or hotplug device (usb, pcmcia, ...)
SUBSYSTEMS  de-duplicated chain of subsystems
lscpu (display information about the CPU architecture): 
-y, --physical          print physical instead of logical IDs
New available column:
DRAWER  logical drawer number
lslocks (list local system locks): 
-J, --json             use JSON output format
-i, --noinaccessible   ignore locks without read permissions
nsenter (run a program with namespaces of other processes): 
-C, --cgroup[=<file>]      enter cgroup namespace
    --preserve-credentials do not touch uids or gids
-Z, --follow-context       set SELinux context according to --target PID
rtcwake (enter a system sleep state until a specified wakeup time): 
--date <timestamp>   date time of timestamp to wake
--list-modes         list available modes
-r, --reorder <dev>  fix partitions order (by start offset)
sfdisk (display or manipulate a disk partition table): 
New Commands:
-J, --json <dev>                  dump partition table in JSON format
-F, --list-free [<dev> ...]       list unpartitioned free areas of each device
-r, --reorder <dev>               fix partitions order (by start offset)
    --delete <dev> [<part> ...]   delete all or specified partitions
--part-label <dev> <part> [<str>] print or change partition label
--part-type <dev> <part> [<type>] print or change partition type
--part-uuid <dev> <part> [<uuid>] print or change partition uuid
--part-attrs <dev> <part> [<str>] print or change partition attributes
New Options:
-a, --append                   append partitions to existing partition table
-b, --backup                   backup partition table sectors (see -O)
    --bytes                    print SIZE in bytes rather than in human readable format
    --move-data[=<typescript>] move partition data after relocation (requires -N)
    --color[=<when>]           colorize output (auto, always or never)
                               colors are enabled by default
-N, --partno <num>             specify partition number
-n, --no-act                   do everything except write to device
    --no-tell-kernel           do not tell kernel about changes
-O, --backup-file <path>       override default backup file name
-o, --output <list>            output columns
-w, --wipe <mode>              wipe signatures (auto, always or never)
-W, --wipe-partitions <mode>   wipe signatures from new partitions (auto, always or never)
-X, --label <name>             specify label type (dos, gpt, ...)
-Y, --label-nested <name>      specify nested label type (dos, bsd)
Available columns (for -o):
 gpt: Device Start End Sectors Size Type Type-UUID Attrs Name UUID
 dos: Device Start End Sectors Cylinders Size Type Id Attrs Boot End-C/H/S Start-C/H/S
 bsd: Slice Start  End Sectors Cylinders Size Type Bsize Cpg Fsize
 sgi: Device Start End Sectors Cylinders Size Type Id Attrs
 sun: Device Start End Sectors Cylinders Size Type Id Flags
swapon (enable devices and files for paging and swapping): 
-o, --options <list>     comma-separated list of swap options
New available columns (for --show):
UUID   swap uuid
LABEL  swap label
unshare (run a program with some namespaces unshared from the parent): 
-C, --cgroup[=<file>]                              unshare cgroup namespace
    --propagation slave shared private unchanged   modify mount propagation in mount namespace
-s, --setgroups allow deny                         control the setgroups syscall in user namespaces
Deprecated / removed options sfdisk (display or manipulate a disk partition table): 
-c, --id                  change or print partition Id
    --change-id           change Id
    --print-id            print Id
-C, --cylinders <number>  set the number of cylinders to use
-H, --heads <number>      set the number of heads to use
-S, --sectors <number>    set the number of sectors to use
-G, --show-pt-geometry    deprecated, alias to --show-geometry
-L, --Linux               deprecated, only for backward compatibility
-u, --unit S              deprecated, only sector unit is supported

9 January 2017

Shirish Agarwal: The Great Indian Digital Tamasha

Indian Railways This is an extension to last month s article/sharing where I had shared the changes that had transpired in the last 2-3 months. Now am in a position to share the kind of issues a user can go through in case he is looking for support from IRCTC to help him/her go cashless. If you a new user to use IRCTC services you wouldn t go through this trouble. For those who might have TL;DR issues it s about how hard it can become to get digital credentials fixed in IRCTC (Indian Railway Catering and Tourism Corporation) a. 2 months back Indian Prime Minister gave a call incentivizing people to use digital means to do any commercial activities. One of the big organizations which took/takes part is IRCTC which handles the responsibility for e-ticketing millions of Rail tickets for common people. In India, a massive percentage moves by train as it s cheaper than going by Air. A typical fare from say Pune Delhi (capital of India) by second class sleeper would be INR 645/- for a distance of roughly 1600 odd kms and these are monopoly rates, there are no private trains and I m not suggesting anything of that sort, just making sure that people know. An economy class ticket by Air for the same distance would be anywhere between INR 2500-3500/- for a 2 hour flight between different airlines. Last I checked there are around 8 mainstream airlines including flag-carrier Air India. About 30% of the population live on less than a dollar and a half a day which would come around INR 100/-. There was a comment some six months back on getting more people out of the poverty line. But as there are lots of manipulations in numbers for who and what denotes above poor and below poor in India and lot of it has to do with politics it s not something which would be easily fixable. There are lots to be said in that arena but this article is not an appropriate blog-post for that. All in all, it s only 3-5% of the population at the most who can travel via Air if situation demands and around 1-2% who might be frequent, business or leisure travellers. Now while I can thankfully afford an Air Ticket if the situation so demands, my mother gets motion sickness so while together we can only travel by train. b. With the above background, I had registered with IRCTC few years ago with another number (dual-SIM) I had purchased and was thinking that I would be using this long-term (seems to my first big mistake, hindsight 50:50) . This was somewhere in 2006/2007. c. Few months later I found that the other service provider wasn t giving good service or was not upto mark. I was using IDEA (the main mobile operator) throughout those times. d. As I didn t need the service that much, didn t think to inform them that I want to change to another service provider at that point in time (possibly the biggest mistake, hindsight 50:50) e. In July 2016 itself IRCTC cut service fees, f. This was shared as a NEW news item/policy decision at November-end 2016 . g. While I have done all that has been asked by irctc-care haven t still got the issues resolved IRCTC s e-mail id care@irctc.co.in Now in detail This is my first e-mail sent to IRCTC in June 2016
Dear Customer care, I had applied and got username and password sometime back . The
number I had used to register with IRCTC was xxxxxxxxxx (BSNL mobile number not used anymore) . My mobile was lost and along with that the number was also lost. I had filed a complaint with the police and stopped that number as well. Now I have an another mobile number but have forgotten both the password and the security answer that I had given when I had registered . I do have all the conversations I had both with the ticketadmn@irctc.co.in as well as care@irctc.co.in if needed to prove my identity. The new number I want to tie it with is xxxxxxxxxx (IDEA number in-use for last 10 years) I see two options :- a. Tie the other number with my e-mail address b. Take out the e-mail address from the database so that I can fill in
as a new applicant. Looking forward to hear from you.
There was lot of back and forth with various individuals on IRCTC and after a lot of back and forth, this is the final e-mail I got from them somewhere in August 2016, he writes
Dear Customer, We request you to send mobile bill of your mobile number if it is post paid or if it is prepaid then contact to your service provider and they will give you valid proof of your mobile number or they will give you in written on company head letter so that we may update your mobile number to update so that you may reset your password through mobile OTP.
and Kindly inform you that you can update your profile by yourself also. 1.login on IRCTC website
2.after login successfully move courser on my profile tab.
3.then click on update profile
4.re-enter your password then you can update your profile
5.click on user-profile then email id.
6. click on update. Still you face any problem related to update profile please revert to us with the screen shots of error message which you will get at the time of update profile . Thanks & Regards Parivesh Patel
Executive, Customer Care
care@irctc.co.in
http://www.irctc.co.in
[#3730034]
IRCTC s response seemed responsible, valid and thought it would be a cake-walk as private providers are supposed to be much more efficient than public ones. The experience proved how wrong was I trust them with doing the right thing 1. First I tried the twitter handle to see how IDEA uses their twitter handle. 2. The idea customer care twitter handle was mild in its response. 3. After sometime I realized that the only way out of this quagmire would perhaps be to go to a brick-mortar shop and get it resolved face-to-face. I went twice or thrice but each time something or the other would happen. On the fourth and final time, I was able to get to the big Official shop only to be told they can t do anything about this and I would have to the appellate body to get the reply. The e-mail address which they shared (and I found it later) was wrong. I sent a somewhat longish e-mail sharing all the details and got bounce-backs. The correct e-mail address for the IDEA Maharashtra appellate body is appellette.mh@idea.aditybirla.com I searched online and after a bit of hit and miss finally got the relevant address. Then finally on 30th December, 2016 wrote a short email to the service provider as follows
Dear Sir,
I have been using prepaid mobile connection number xxxxxxx taken from IDEA for last 10 odd years. I want to register myself with IRCTC for online railway booking using
my IDEA mobile number. Earlier, I was having a BSNL connection which I discontinued 4 years back, For re-registering myself with IRCTC, I have to fulfill their latest
requirements as shown in the email below . It is requested that I please be issued a letter confirming my
credentials with your esteemed firm. I contacted your local office at corner of Law College Road and
Bhandarkar Road, Pune (reference number Q1 84786060793) who
refused to provide me any letter and have advised me to contact on the
above e-mail address, hence this request is being forwarded to you. Please do the needful at your earliest.
Few days later I got this short e-mail from them
Dear Customer, Greetings for the day! This is with reference to your email regarding services. Please accept our apologies for the inconvenience caused to you and delay in response. We regret to inform you that we are unable to provide demographic details from our end as provision for same is not available with us. Should you need any further assistance, please call our Customer Service help line number 9822012345 or email us at customercare@idea.adityabirla.com by mentioning ten digit Idea mobile number in subject line. Thanks & Regards, Javed Khan Customer Service Team IDEA Cellular Limited- Maharashtra & Goa Circle.
Now I was at almost my wit s end. Few days before, I had re-affirmed my e-mail address to IDEA . I went to the IDEA care site, registered with my credentials. While the https connection to the page is weak, but let s not dwell on that atm. I logged into the site, I went through all the drop-down menus and came across My Account > Raise a request link which I clicked on . This came to a page where I could raise requests for various things. One of the options given there was Bill Delivery. As I wasn t a postpaid user but a prepaid user didn t know if that would work or not I still clicked on it. It said it would take 4 days for that to happen. I absently filed it away as I was somewhat sure that nothing would happen from my previous experience with IDEA. But this time the IDEA support staff came through and shared a toll-free SMS number and message format that I could use to generate call details from the last 6 months. The toll-free number from IDEA is 12345 and the message format is EBILL MON (short-form for month so if it s January would be jan, so on and so forth). After gathering all the required credentials, sent my last mail to IRCTC about a week, 10 days back
Dear Mr. Parivesh Patel, I was out-of-town and couldn t do the needful so sorry for the delay.
Now that I m back in town, I have been able to put together my prepaid
bills of last 6 months which should make it easy to establish my
identity. As had shared before, I don t remember my old password and the old
mobile number (BSNL number) is no longer accessible so can t go
through that route. Please let me know the next steps in correcting the existing IRCTC
account (which I haven t operated ever) so I can start using it to
book my tickets. Look forward to hearing from you.
Haven t heard anything them from them, apart from a generated token number, each time you send a reply happens. This time it was #4763548 The whole sequence of events throws a lot of troubling questions a. Could IRCTC done a better job of articulating their need to me instead of the run-around I was given ? b. Shouldn t there be a time limit to accounts from which no transactions have been done ? I hadn t done a single transaction since registering. When cell service providers including BSNL takes number out after a year of not using a number, why is that account active for so long ? c. As that account didn t have OTP at registration, dunno if it s being used for illegal activities or something. Update This doesn t seem to be a unique thing at all. Just sampling some of the tweets by people at @IRCTC_LTD https://twitter.com/praveen4al/status/775614978258718721 https://twitter.com/vis_nov25/status/786062572390932480 https://twitter.com/ShubhamDevadiya/status/794241443950948352 https://twitter.com/rajeshhindustan/status/798028633759584256 https://twitter.com/ameetsangita/status/810081624343908352 https://twitter.com/grkisback/status/813733835213078528 https://twitter.com/gbalaji_/status/804230235625394177 https://twitter.com/chandhu_nr/status/800675627384721409 , all of this just goes to show how un-unique the situation really is.
Filed under: Miscellenous Tagged: #customer-service, #demonetization, #IDEA-aditya birla, #IRCTC, #web-services, rant

9 October 2013

John Goerzen: Two Kittens

Almost every time he got off the bus for the past month and a half, Jacob started his afternoon in the same way. Before toys, before his trains and his toy bus, before anything indoors, he went for our cats. Here he is, cradling his favorite, Tigger: Laura and I both grew up around cats. We had been talking about kittens, and shortly after we got engaged, one of my relatives offered us some free kittens. We went to his place one evening and selected two of them one calico and one tiger-colored. Since what is now my place will soon be our place, they came to live with me. Our cats were one of the first things we did to prepare for our lives together. Oliver wanted to name them some rather impractical sentence-long names ( The Cat Who Always Likes To Run ), so Laura and I suggested some names from one of their favorite books: Tigger and Roo. They both liked the names, but Oliver thought they should be called Tigger the Digger and Roo the Runner . Never mind that they were just 6 weeks old at the time, and not really old enough to either dig or run. Here s Oliver with Roo, the day after the kittens arrived here. I have always had outside cats, both because I m allergic to cats so I need them to be outside, and because they sometimes literally quiver with joy of being outdoors. Tigger and Roo often chased insects, wrestled with each other, ran up (and slowly came back down) trees, and just loved the outside. Sometimes, I have taken my laptop and wireless headset and work from the back porch. The kittens climb up my jeans, inspect the laptop, and once Roo even fell asleep on my lap at one of those times. Jacob has been particularly attached to Tigger, calling him my very best friend. When Jacob picks him up after school, Tigger often purrs while cradled in Jacob s arms, and Jacob comments that Tigger loves me. Oh dad, he knows I am his friend! The kittens have been growing, and becoming more and more comfortable with their home in the country. Whenever I go outside, it isn t long before there are two energetic kittens near my feet, running back and forth, sometimes being very difficult to avoid stepping on. I call and I see little heads looking at me, from up in a tree, or peeking out from the grain elevator door, or from under the grill. They stare for just a second, and then start running, sometimes comically crashing into something in their haste. Yesterday when I went to give them food, I called and no cats came. I was concerned, and walked around the yard, but at some point either they come or they don t. Yesterday afternoon, just after the bus dropped off Jacob, I discovered Tigger on the ground, motionless. Once Jacob was in the house, I went to investigate, and found Tigger was dead. As I was moving his body, I saw Roo was dead, too. Both apparently from some sort of sudden physical injury a bit mysterious, because neither of them were at a place where they had ever gone before. While all this was happening, I had to also think about how I was going to tell the boys about this. I tried to minimize what he could see, Jacob had caught an unavoidable glimpse of Tigger as we were walking back from the bus, but didn t know exactly what had happened. He waited in the house, and when I came back, asked me if Tigger was dead. I said he was. Jacob started crying, saying, Oh Dad, I am so sad , and reached up for a hug. I picked him up and held him, then sat down on the couch and let him curl up on my lap. I could quite honestly let him know he wasn t alone, telling him I am sad, too. Oliver arrived not long after, and he too was sad, though not as much as Jacob. Both boys pretty soon wanted to see them. I decided this was important for them for closure, and to understand, so while they waited in the house, I went back out to arrange the kittens to hide their faces, the part that looks most unnatural after they die. The boys and I walked out to where I put them, then I carried both of them the last few feet. We stood a little ways back close enough to see who was there, far enough to not get too much detail and they were both sniffling. I tried to put voice to the occasion, saying, Goodbye, Tigger and Roo. We love you. Oliver asked if they could hear us. I said No, but I told them what I felt like anyway. Jacob, through tears, said, Dad, maybe they are in heaven now. We went back inside. Jacob said, Oh dad, I am so sad. This is the saddest day of my life. My heart is breaking. Hearing a 7-year-old say that isn t exactly easy for a dad. Pretty soon he was thinking of sort of comfort activities to do, saying I think I would feel better if we did So they decided to watch a favorite TV program. Jacob asked if Laura knew yet, and when I said no, he got his take-charge voice and said, Dad, you will start the TV show for us. While we are watching, you will send Laura an email to tell her about Tigger and Roo. OK? What could I say, it wasn t a bad idea. Pretty soon both boys were talking and laughing. It was Big Truck Night last night, at a town about half an hour away. It s an annual event we were already planning to attend, where all sorts of Big Trucks firetrucks, school bus, combine, bucket truck, cement truck, etc show up and are open for kids to climb in and explore. It s always a highlight for them. They played and sang happily as we drove, excitedly opened and closed the big door on the school bus and yelled All Aboard! from the top of the combine. We ate dinner, and drove back home. When we got home, Jacob mentioned the cats again, in a sort of matter-of-fact way, and also wanted to make sure he knew Laura had got the message. A person never wakes up expecting to have to dump a bowl of un-eaten cat food, or to give an impromptu cat funeral for little boys. As it was happening, I wished they hadn t been around right then. But in retrospect, I am glad they were. They had been part of life for those kittens, and it is only right that they could be included in being part of death. They got visual closure this way, and will never wonder if the cats are coming back someday. They had a chance to say goodbye. Here is how I remember the kittens.

7 February 2013

Russell Coker: Links February 2013

Aaron on Software wrote an interesting series of blog posts about psychology and personal development collectively Titled Raw Nerve , here s a link to part 2 [1]. The best sections IMHO are 2, 3, and 7. The Atlantic has an insightful article by Thomas E. Ricks about the failures in leadership in the US military that made the problems in Afghanistan and Iraq a lot worse than they needed to be [2] Kent Larson gave an interesting TED talk about how to fit more people in cities [3]. He covers issues of power use, transport, space use, and sharing. I particularly liked the apartments that transform and the design for autonomous vehicles that make eye contact with pedestrians. Andrew McAfee gave an interesting TED talk titled Are Droids Taking Our Jobs [4]. I don t think he adequately supported his conclusion that computers and robots are making things better for everyone (he also presented evidence that things are getting worse for many people), but it was an interesting talk anyway. I Psychopath is an interesting documentary about Sam Vaknin who is the world s most famous narcissist [5]. The entire documentary is available from Youtube and it s really worth watching. The movie Toy Story has been recreated in live action by a couple of teenagers [6]. That s a huge amount of work. Rory Stewart gave an interesting TED talk about how to rebuild democracy [7]. I think that his arguments against using the consequences to argue for democracy and freedom (he suggests not using the torture doesn t work and women s equality doubles the workforce arguments) are weak, but he made interesting points all through his talk. Ernesto Sirolli gave an interesting TED talk about aid work and development work which had a theme of Want to help someone? Shut up and listen! [8]. That made me think of Mary Gardiner s much quoted line from the comments section of her Wikimania talk which was also shut up and listen . Waterloo Labs has some really good engineering Youtube videos [9]. The real life Mario Kart game has just gone viral but there are lots of other good things like the iPhone controlled car and eye controlled Mario Brothers. Robin Chase of Zipcar gave an interesting TED talk about various car sharing systems (Zipcar among others), congestion taxes, the environmental damage that s caused by cars, mesh networks, and other things [10]. She has a vision of a future where most cars are shared and act as nodes in a giant mesh network. Madeleine Albright gave an interesting TED talk about being a female diplomat [11]. She s an amazing speaker. Ron Englash gave an interesting TED talk about the traditional African use of fractals [12]. Among the many interesting anecdotes concerning his research in Africa he was initiated as a priest after explaining Georg Cantor s set theories. Racialicious has an insightful article about the low expectations that members of marginalised groups have of members of the privileged groups [13]. Rick Falkvinge has a radical proposal for reforming copyrights with a declared value system [14]. I don t think that this will ever get legislative support, but if it did I think it would work well for books and songs. I think that some thought should be given to how this would work for Blogs and other sources of periodical content. Obviously filing for every blog post would be an unreasonable burden. Maybe aggregating a year of posts into one copyright assignment block would work. Scott Fraser gave an interesting TED talk about the problem with eyewitness testimony [15]. He gave a real-world example of what had to be done to get an innocent man acquitted, it s quite amazing. Sarah Kendzior wrote an interesting article for al Jazeera about the common practice in American universities to pay Adjunct Professors wages that are below the poverty line [16]. That s just crazy, when students pay record tuition fees there s more than enough money to pay academics decent wages, where does all the money go to anyway?
Related posts:
  1. Links January 2013 AreWomenHuman has an interesting article about ViolentAcrez and the wide...
  2. Links February 2012 Sociological Images has an interesting article about the attempts to...
  3. Links February 2009 Michael Anissimov writes about the theft of computers from the...

19 January 2009

Ren&#233; Mayorga: yay!, I m a Debian Developer \o/

following the traditional post.
I got an email today, telling me that I m a full Debian Developer now, I started my NM process on 2007-12-10 it took a bit more then a year, and now I m the first DD of El Salvador I have to thanks to all people that help me out, anibal, gregoa, dmn, mlt(Marcela), xerakko, twerner, benh and some more people that I don t remember.

23 December 2008

Wouter Verhelst: Root on NBD, now with partitions

A while ago, I wrote an initrd script and hook that would allow one to run a system with root on a Network Block Device (NBD), that I maintain both upstream and in Debian. Since then, Laurent Vivier submitted a kernel patch that got merged, and which will allow one to partition an NBD device. I had a patch for my initrd script that would support running root off a partitioned NBD device, but did not yet have the time to test and debug it. Until today, that is. Well... not really. I made the time, but I didn't really have it. For reference, the time is 07:25 right now, and yes, I did stay up all night. But, well, who cares, right? Right. I'd really love to get this into lenny still, but since we're in deep freeze... not keeping my breath. We'll see, I guess. The upload is going to unstable, anyway after this one final test. So how does it work? Unfortunately, no d-i support as of yet. I'd been working on that, but then it turned out that in order to support root-on-NBD, I'd have to somehow, somewhere, teach partman that NBD is this strange thing which can be formatted, but not partitioned. I was way far in my research (but nowhere in code, yet) on that when Laurent sent in his partitioning patch, so it got postponed then, and I didn't get a chance to pick it up anymore in time. But if you're willing to use debootstrap manually, it's really simple to set up: 
# apt-get install nbd-client
# nbd-client server port /dev/nbd0
# fdisk /dev/nbd0
[... create partitions ...]
# mkfs -t ext3 /dev/nbd0p1
# mkdir /mnt/tmp
# mount /dev/nbd0p1 /mnt/tmp
# debootstrap --include=nbd-client sid /mnt/tmp
# echo KILLALL=false >> /mnt/tmp/etc/nbd-client
The "KILLALL" is necessary, since otherwise the nbd-client initscript will do nasty things with your root filesystem. Note that you still need nbd-client installed and run the initscript, even if it only uses nbd-client inside the initrd; because the initscript writes the nbd-client PID to /lib/init/rw/sendsigs.omit.d, which is also required if you don't want sendsigs to shoot the root filesystem from under your nose. This might see some changes in the future. Now boot with your kernel and initramfs, and boot it with the following arguments: 
nbdroot=server,port root=/dev/nbd0p1
Obviously, in the above two examples, you should replace 'server' by the IP address or hostname of your server, and 'port' by the port number on which your nbd-server is running. It is of course also possible to use nbd1p2 or nbd0p4, should you want that. And that's all there is to it. Well, almost; due to the way the network configuration is written in initramfs, I had to choose between reinventing the wheel, or hardcoding the NIC name to 'eth0'. I chose the latter. What this means is that if you want to boot off an NBD blockdevice that is only available on eth1 or wlan0 or some such, you lose. Other than that, go ahead and try. Should be on a DMNY (Debian Mirror Near You) RSN. Update: fill in the link to git.kernel.org, and mention the KILLALL thing. Oops.

10 March 2008

Jan Wagner: bit nagios-plugin bugsquashing, stalling policyd-weight and my first perl module package

Last week I did again some work on nagios-plugins. After the announcement of Dann Frazier to upload NMU to fix a trivial bug, I thought it’s time again to give some extra care to the package. So I prepared 1.4.11-2 fixing the important bugs and uploaded it. I also commited some minor fixes to the svn, so these issues will get fixed by the next upload. Since the development of policyd-weigh stalled and unfortunately maybe get stuck, I was looking for an alternative, which maybe found with postfwd. It’s quite flexible but it also will take more time (and care!) to get a reliable configuration, which maybe effective as policyd-weight (still) is right now. While checking the dependencies for postfwd I noticed that Net::DNS::Async isn’t available in Debian (yet). So I decided to create a package starting with dh-make-perl, join the Debian Perl Group and let it review. Damyan Ivanov was so kind to review and upload it, Gregor Herrmann did also give some much useful hints. Thanks to both! And yes, I also found time to step forward with NM, since I was overloaded the last weeks with usual work and life. Thank to my AM to be so appreciative.

9 April 2007

Wouter Verhelst: Etch m68k

So now that etch is out, m68k is no longer an officially supported port in the latest version of Debian . However, if you have a look at a DMNY[1], you'll see the following: 
ncftp /debian/dists > ls
Debian3.1r6@                           proposed-updates@
Debian4.0r0@                           README
etch/                                  sarge/
etch-m68k/                             sid/
etch-proposed-updates/                 stable@
experimental/                          stable-proposed-updates@
lenny/                                 testing@
lenny-proposed-updates/                testing-proposed-updates@
oldstable@                             unstable@
Note the 4th line of output: 
etch-m68k/
Yes, that means there is a way out for users of Debian/m68k. The etch-m68k suite will allow us to update patckages for etch on m68k only, much like the AMD64 folks did on sarge. This is necessary, since etch/m68k is a bit too different from 'regular' etch. Want to help? Head over to debian-68k@lists.debian.org and/or #debian-68k on OFTC. Help is always welcome. [1]Debian Mirror Near You

8 November 2006

Erinn Clark: cd /mnt/view

The week before last, I packed up my car and drove across the country and am now in California. All I have to say about that is: WESSSIIIDE! I also have a few pictures.
This cow mooed at me until I went away. I love New Mexico.
Obligatory tourist shot at the Grand Canyon. As an aside, on my way there I got stuck on a highway overnight because of a police/gunman standoff.
Some pretty blown glass flowers inside the Bellagio in Las Vegas, NV.
The meteor crater, which I wish to pave and turn into a skatepark.

10 July 2006

Amaya Rodrigo: Debian Swirl


Debian Swirl
Originally uploaded by inkedmn.
And I thought mine was cool...