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9 May 2023

C.J. Collier: Instructions for installing Proxmox onto the Qotom device

These instructions are for qotom devices Q515P and Q1075GE. You can order one from Amazon or directly from Cherry Ni <export03@qotom.com>. Instructions are for those coming from Windows. Prerequisites:

A USB keyboard and mouse
A powered HDMI monitor and an HDMI cable
A copy of the Proxmox VE Installer ISO
A USB disk from which to boot the installer
Software and instructions to burn the raw image to USB
The details of your wireless network including wireless network ID (SSID), WPA password, gateway address and network prefix length

To find your windows network details, run the following command at the command prompt:

netsh interface ip show addresses

Here s my output:

PS C:\Users\cjcol> netsh interface ip show addresses "Wi-Fi"
Configuration for interface "Wi-Fi"
    DHCP enabled:                         Yes
    IP Address:                           172.16.79.53
    Subnet Prefix:                        172.16.79.0/24 (mask 255.255.255.0)
    Default Gateway:                      172.16.79.1
    Gateway Metric:                       0
    InterfaceMetric:                      50

Did you follow the instructions linked above in the prerequisites section? If not, take a moment to do so now.
Open Rufus and select the proxmox iso which you downloaded.

You may be warned that Rufus will be acting as dd.

Don t forget to select the USB drive that you want to write the image to. In my example, the device is creatively called NO_LABEL .

You may be warned that re-imaging the USB disk will result in the previous data on the USB disk being lost.

Once the process is complete, the application will indicate that it is complete.

You should now have a USB disk with the Proxmox installer image on it. Place the USB disk into one of the blue, USB-3.0, USB-A slots on the Qotom device so that the system can read the installer image from it at full speed. The Proxmox installer requires a keyboard, video and mouse. Please attach these to the device along with inserting the USB disk you just created.

Press the power button on the Qotom device. Press the F11 key repeatedly until you see the AMI BIOS menu. Press F11 a couple more times. You ll be presented with a boot menu. One of the options will launch the Proxmox installer. By trial and error, I found that the correct boot menu option was UEFI OS

Once you select the correct option, you will be presented with a menu that looks like this. Select the default option and install.

During the install, you will be presented with an option of the block device to install to. I think there s only a single block device in this celeron, but if there are more than one, I prefer the smaller one for the ProxMox OS. I also make a point to limit the size of the root filesystem to 16G. I think it will take up the entire volume group if you don t set a limit. Okay, I ll do another install and select the correct filesystem.

If you read this far and want me to add some more screenshots and better instructions, leave a comment.

3 November 2022

Arturo Borrero Gonz lez: New OpenPGP key and new email

I m trying to replace my old OpenPGP key with a new one. The old key wasn t compromised or lost or anything bad. Is still valid, but I plan to get rid of it soon. It was created in 2013. The new key id fingerprint is: AA66280D4EF0BFCC6BFC2104DA5ECB231C8F04C4 I plan to use the new key for things like encrypted emails, uploads to the Debian archive, and more. Also, the new key includes an identity with a newer personal email address I plan to use soon: arturo.bg@arturo.bg The new key has been uploaded to some public keyservers. If you would like to sign the new key, please follow the steps in the Debian wiki.

If you are curious about what that long code block contains, check this https://cirw.in/gpg-decoder/ For the record, the old key fingerprint is: DD9861AB23DC3333892E07A968E713981D1515F8 Cheers!

3 June 2013

John Goerzen: Two boys, shrimp, and stars

I recently made a routine analysis of my kitchen. (Of course I make a routine analysis of my kitchen; don t you?) In it, I discovered these items, still usable, but approaching that magic throw it out date:

Baby carrots
Potatoes
Lemons
Green beans
Corn

So, I thought, what can I make that would use all of these? And I realized I had some shrimp in the freezer, so: a shrimp boil! I tossed it all, plus some various seasonings and a few other veggies, into the Dutch oven, and boiled. Jacob and Oliver watched the activity with interest. Well, except for the potato-peeling part. For that, they went and played with their toy school buses. But the rest was good. They carefully observed me adding some spices, some vegetables, the shrimp, and watched it all simmer. Then it was time to eat. Excitement!

Of course, it did take a few minutes to boil, so Jacob got down his whiteboard while Oliver looked on.

They enjoyed learning how to peel the shell from the shrimp and devoured their food. And another night recently, Jacob unexpectedly showed up in the kitchen at 10PM. He said he was thirsty, so I got him some water. He asked, Dad, did you make ice cream? Earlier that day, I had prepared ice cream with Oliver, but it was a kind that had to be cooked (lemon with pureed strawberries and peaches) and it wasn t cool enough to finish before their bedtime. I did let them help add the ice and salt to the ice cream freezer just before they went to bed. So I told Jacob that yes, the ice cream was done. He stood there, tiredly, considering, with this oh he ll never say yes to ice cream at 10PM look on his face. So I said, would you like one bite right now? The look of delight on his face was amazing; a broad smile, a twinkle in his eyes, and a clap. So I got out the big bowl of ice cream and scooped up one big spoonful. He loved it. Then I said, should we go look at the stars? I carried Jacob outside to the porch. We stood there, looking up. I used to do this with him periodically, but it had been about a year. So he was thrilled. It was a partially overcast night, but there were still some stars visible. He had no idea there were some stars missing. To him, it was amazing and wonderful and infinite. Oh dad, there are way too many stars to count! He stayed there, arms around my neck, for a minute or two, then was ready to go back inside. I set him down, gave him a hug, said Goodnight, Jacob. And off he trotted, back upstairs, wearing a contented smile, and he fell asleep almost immediately. All it takes to delight children is a bit a shrimp or some stars. And those things delight me, too.

22 October 2011

Vincent Sanders: I do not want anything NASty to happen

I have a lot of digital data to store, like most people I have photos, music, home movies, email and lots of other random data. Being a programmer I also tend to have huge piles of source code and builds lying about. If all that was not enough I work from home so I have copious mountains of work data too.

Many years ago I decided I wanted a single robust, backed up, file server for all of this. So I slapped together a machine from leftovers stuffed some drives in a software RAID array, served over NFS and CIFS and never looked back.

Over time the hardware has changed and the system upgraded but the basic approach of a custom built server has remained. When I needed a build engine to churn out hundreds of kernels a day for the ARM Linux autobuilder the system was expanded to cope and mid 2009 the current instantiation was created.

The current system is a huge tower case (courtesy of Mark Hymers) containing a Core 2 Quad 2.33GHz (8 threads) with 8Gigabytes of memory and 13 drives across four SATA controllers split into several RAID arrays. Despite buying new drives at higher capacities I have tended to keep the old drives around for extra storage resulting in what you see here.

I recently looked at the power usage of this monster and realised I was paying a lot of money to spin rust which was simply uneconomic. Seriously, why did I have six sub 200Gigabyte drives running when a single 2T to replace them would pay for itself in power saved in under a month! In addition I no longer required the compute power available either, most definitely time for a downsize!

Several friends suggested a HP micro server might be just the thing. After examining and evaluating some other options (Thecus and QNAP NAS) I decided the HP route was most definitely the best value for money.

The HP Proliant micro server is a dual core Athlon II 1.3GHz system with a Gigabyte of memory, space for four SATA hard drives and a single 5 inch bay for an optical drive. All this in a roughly 250mm on a side cube.

I went out and bought the server from ebuyer for 235 with free shipping and 100 cashback. I Immediately sent off the cash back paperwork so I would not forget(what an odd way to get discount) so total cost for the unit was 135. I then used Crucial to select a suitable memory upgrade to take the total to 2 Gigabytes of RAM for 14

The final piece of the solution was the drives for the storage. I decided the best capacity to cost ratio could be had from 2 TB drives and with four bays available would give a raw capacity of 8 TB or more usefully for this discussion 7.8 TiB

I did an experiment with 3x1 TB 7200 RPM drives from the existing server and determined that The overall system would not really benefit enough to justify the 50% price premium of 7200 RPM drives over 5400 RPM devices. I ended up getting four Samsung Spinpoint F4EG 2 TB drives for 230.

I also bought a black LG DVD-RW drive for 16 I would have also required a SATA data cable and a molex to SATA power cable if I had not already got them.

My HP microserver with the front door open

Putting the components together was really simple. The internal layout and design of the enclosure mean it is easy to work with and has the feel of build quality I usually associate with HP and IBM server kit not something this small and inexpensive.

The provided documentation is good but unnecessary as most operations are obvious. They even provide the bolts to attach all the drives along with a wrench in the lockable front door, how thoughtful is that!

I then installed the system with Debian squeeze from the optical drive. Principally because I happened to have a network installer CD to hand although the BIOS does have network boot capability.

I used the installer to put the whole initial system together and did not have to resort to the command line even once, very impressed with how far D-I has come.

After asking several people for advice the general consensus was that I should create two partitions on each drive one for a RAID 1 /boot and one for a RAID 5 LVM area.

I did have to perform the entire install a second time because there is a gotcha with GUID Partition Table, RAID 1 boot drives and GRUB. You must have a small "BIOS" partition on the front of the drive or GRUB cannot install in the MBR and your system will not boot!

The partition layout I ended up with looks like:

Model: ATA SAMSUNG HD204UI (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name  Flags
1      17.4kB  32.0MB  32.0MB                     bios_grub
3      32.0MB  1000MB  968MB                      raid
2      1000MB  2000GB  1999GB                     raid

The small Gigabyte partition was configured as a RAID 1 across all four drives and formatted with ext2 and mount point of /boot. The large space was configured as RAID 5 across all four drives with LVM on top. Logical volumes were allocated formatted ext3 (on advice from seevral people about ext4 instability they had observed) for 50 GiB root, 4 GiB swap and 1 TiB home space.

The normal Debian install proceeded and after the post install reboot I was presented with a login prompt. Absolutely no surprises at all no additional drivers required and a correctly running system.

Over the next few days I did the usual sysadmin stuff, rsynced data from the old fileserver including creating logical volumes for the various arrays from the old server none of which presented much of a problem. The 5.5TiB Raid 5 did however take a day or so to sync!

I used the microservers eSATA port to attach external drives I use for backup purposes which has also not been an issue so far.

I am currently running both the new and old systems for a few days and rsyncing data to the microserver until I am sure of it. Actually I will make the switch this weekend and shut the old system down and leave it till next weekend before I scrub the old drives.

Before I made it live I decided to run some benchmarks and gather some data just for interest.

Bonnie (Version 1.96) was run in the root logical volume (I repeated the tests in other volumes, there is sub 1% variation) the test used a 4GiB size and 16 files

	Sequential Output			Sequential Input		Random Seeks	Sequential Create			Random Create
	Per Chr	Block	Rewrite	Per Chr	Block		Create	Read	Delete	Create	Read	Delete
/sec	378K	41M	37M	2216K	330M	412.8	11697	+++++	18330	14246	+++++	14371
%CPU	97	11	8	91	30	15	24	+++	28	29	+++	22
Latency	109ms	681ms	324ms	116ms	93389 s	250ms	29021 s	814 s	842 s	362 s	51 s	61 s

Does not seem to be any notable issues there, the write speeds are a little lower than I might like but that is the cost of RAID 5 and 5400 RPM drives.

The rsync operations used to sync up the live data seem to manage just short of 20MiB/s for the home partition comprising of 250GiB in two and a half million files with the expected mix of file sizes. The video partition managed 33MiB/s on 1TiB of data in nine thousand files.

The bonnie tests were performed accessing the server over NFS with 24GiB size and 16 files.

	Sequential Output			Sequential Input		Random Seeks	Sequential Create			Random Create
	Per Chr	Block	Rewrite	Per Chr	Block		Create	Read	Delete	Create	Read	Delete
/sec	1733K	29M	19M	4608K	106M	358.3	1465	3714	2402	1576	4082	1529
%CPU	98	2	4	93	10	10	8	10	9	9	9	7
Latency	10894 s	23242ms	69159ms	49772 s	224ms	250ms	148ms	24821 s	157ms	108ms	2074 s	719ms

or alternatively as percentages against the previous direct access values

	Sequential Output			Sequential Input		Random Seeks	Sequential Create			Random Create
	Per Chr	Block	Rewrite	Per Chr	Block		Create	Read	Delete	Create	Read	Delete
/sec	464	68	51	213	32	87	12	+++	13	11	+++	10
CPU	101	18	50	104	34	71	33	+++	32	31	+++	31
Latency	9	2512	13248	93	227	79	509	3049	18646	29834	4066	1178688

Not that that tells us much aside from that write is a bit slower over the network, read is gigabit network bandwidth limited and latency of disc over the network is generally poorer than direct.

In summary the total cost was 395 for a complete ready to use system with 5.5TiB of RAID 5 storage which can be NFS served at nearly 900Mbit/s. Overall I am happy with the result, my only real issue is the write performance is a little disappointing but it is good enough for what I need.

28 February 2006

Arnaud Vandyck: FOSDEM2006

I was not a part of the devrooms team this year (like the last two years), Pascal did all the job! I was just a simple visitor and it’s a very cool position. Mark already bloged about the Classpath’s presentations, so you can find some interresting slides there. Saturday (25th February 2006) RMS Excellent talk about the patent. As always, Richard Stallman has great images to explain complex things. I still can’t understand all the GPL3 changes but I’ll try to read some more articles about it. Putting ‘Free’ into JFreeChart The presentation from David Gilbert was very cool. I did not know JFreeChart and it is really cool! This is a very big project and it makes very beautiful charts. I’d like to find some charts to do just to use it! Eclipse for GNU Classpath Development Tom Tromey did a fantastic presentation again. I already saw his presentations past years and it was still excellent. He already tried to explain me how to set up this Eclipse/GNU Classpath setup on IRC but I missed the “Don’t build automatically” hack. Everything should be on the Classpath’s wiki. Xen A presentation by Ian Pratt, leader of the Xen Source project. I heard about this project but I didn’t know that you could move an instance from a machine to another one! Amazing! Sunday (26th February 2006) I met Wouter in the bus but he lost his voice and asked me to introduce the speakers of the Debian room. I’m sorry for the three speakers I announced if it was not just as good as if Wouter did it. I wanna intend to the two conferences anyway. Women in Free Software I already wanna be at the talk of last year but I was in the Classpath devroom. Hanna M Wallach did a fantastic talk. I learned a lot of things and I know now that there really is a need of the debian-women project. I proposed her to put a phrase or a logo or something on the Debian-Java projects web pages and she seems to be pleased. Tonight, I went on #debian-women and it seems I did not understand nothing

. So maybe I’d better do nothing about this unless I understand what I could do to help. Debian GNU/kFreeBSD port After the talk of Hanna, I introduced the kFreeBSD talk of Aurelien Jarno. I wanna listen to this talk because I completely don’t know *BSD… I’m sorry but I don’t know more. And I still don’t know the difference with Linux and don’t know why I should, as a simple user change to some *BSD port? Debian-Java Meeting After the kFreeBSD talk, I introduced the SLIND talk in the Debian Room, told Wouter that I go to the Classpath Devroom… and listen to the end of the talk of Christian Thalinger (CacaoJVM — the site was down when I tried). Sorry Christian, I just don’t understant these thing

During the talk (or was this just after the talk of Robert about JamVM?), I went eating with Wolfgang Baer. We went back during the Christian’s talk. Then we had a Debian-Java talk (I should be writing down the summary of this meeting instead of blogging)… I’ll send an email about the meeting, don’t worry

Future of Classpath It is the time when Mark ask everybody: What do you do? How can we help you? It’s a great social/technical time when everybody listen carrefully to everybody. It’s wonderful. Maybe it’s the part I prefer in free software. I must say that I read some mailing lists before joining some project and the ‘Classpath’ (and friends) projects were the one I prefer because of that respect. Then came the camera… A team came in the room to film us. They claim they were making a movie about Free Software. Funny

I discussed a little bit with the woman that seems to be the director and she asked for my email (no, Hanna, it was not because she felt I am sexy

, nobody tells me 100 times I’m sexy

). I told her I was not one of the main contributor but she just wanna talk about free software and understand how it works. Closing Talk: The Challenge of the GNU/Linux Desktop by Jeff Waugh Jeff Waugh is an excellent speaker, I really enjoyed the presentation. A lot of humour, a lot of facts, it was really an excellent presentation. But Jeff, I still do not understand the Ubuntu business plan. I’m not a native english speaker and I did not understand a lot of jokes and some responses. Back! I messed up with my GSM, lost my PIN number or someting I don’t know (I did it a thousand times!), I went to the shop today (Feb. 28) to be able to call again. I also went to the office and the alarm was on… I asked for the security guard (I did not want to take risks the day of my birthday: February 28th)… we found nobody but someone tryied to enter on Sunday. I’ll try to prepare some report about Debian-Java tomorrow. The report will be reviewed by Wolfgang and Michael and I’ll send it on the debian-java list on Saturday or on Sunday.