Archive for the ‘Linux’ Category

Switching ext4 to btrfs on a VPS with no CD-ROM

The default filesystem on my VPS was ext4 and I wanted to use btrfs. However, the CD-ROM options were disabled so there was no simple way to boot a rescue CD and do the conversion. Happily, it was possible without opening a ticket to use GRUB to boot an ISO image. This will require console […]

December 10, 2015 · agw · No Comments
Tags: , , ,  · Posted in: Debian, Linux, Technical

kos-mos is dead, meet t-elos

The old file server was a beast. 2 2.4GHz dual-core Opterons, the old 90nm chips. 5GB (don’t ask) of RAM. And…2.7TB of storage, with a big pile of 250GB and 500GB drives mashed together into several arrays that were dumped into a volume group. The whole thing was encrypted just for kicks. There was also […]

March 7, 2011 · agw · No Comments
Tags: , ,  · Posted in: Debian, Linux

Pulseaudio suc– wait, it works??

The other day, I wiped the media PC which was running Windows 7 and installed Ubuntu 10.10. I was tired of everything “just working” and not having to screw around with anything just to watch a Flash video or 1080p movies. I went with the AMD64 release because I feel like less of a man […]

February 1, 2011 · agw · No Comments
Tags: , , ,  · Posted in: Linux

ISA is not fast

Using a pair of ISA IDE controllers for a mirror, and an ISA NIC is a recipe for sloooooow. md2 : active raid1 sda3[2] sdb3[1] 425600 blocks [2/1] [_U] [====>…………….] recovery = 24.3% (104064/425600) finish=10.5min speed=508K/sec Oh yeah.

March 30, 2010 · agw · No Comments
Tags: , ,  · Posted in: Debian, Technical

leftwing sputters to life

The machine I plan to use for the view out the left hand side of the aircraft is now up and running. This machine wound up with the following specs: * Athlon XP 1800+ (1.533GHz) CPU * 1GB PC 2100 * NVidia FX 6200A 256MB * 8GB HD * Some CMedia sound card * Debian […]

December 7, 2009 · agw · No Comments
Tags: , , ,  · Posted in: Debian, Flying, Technical

Building the airplane: engines

With a new display for my main workspace upstairs, I now have three identical displays for use building my flight sim machine! Things have shifted around a bit hardware wise since the last time I attempted this. Then, I used a single dual-core system (Athlon 64 X2 4400+) with two Nvidia 7800GT cards to drive […]

December 3, 2009 · agw · No Comments
Tags: , ,  · Posted in: Debian, Flying, Technical

kos-mos is healthy again

With the receipt of a replacement drive that took about a year for me to send back for warranty repair, all the RAIDs in kos-mos are rebuilt and happy now. Seagate sent a 400GB model to replace the 250GB I sent out. Doesn’t gain me anything really since I don’t have any other 400GB drives. […]

August 7, 2009 · agw · No Comments
Tags: , , ,  · Posted in: Debian, Linux

Late night packaging

Nothing quite like rpmbuild to make you sleepy. Couldn’t sleep, decided to use the energy tackling packaging Python 2.6 for work. Now I’m nodding off. Success! As an aside, autoconf takes forever on a VM to run its test suite…

July 8, 2009 · agw · No Comments
Tags: , , ,  · Posted in: Linux, Linux IT

HPT-366 finale: giving up.

Yeah, I’m a quitter. After having some more interrupt issues with the HPT-366 IDE controller in the old file server, this morning I decided to make another effort to get to the bottom of it. The issues I was having seemed to coincide with the tulip ethernet driver reporting various problems. First on the list, […]

July 5, 2009 · agw · No Comments
Tags: , , ,  · Posted in: Debian, Linux, Technical

Rebuilding failsure.net (again)

In this post I describe the imminent failure of a power supply fan in my DL320. It did stop spinning, at which point the machine entered a cyclical self-power-cycling: the machine would come up, and quickly shut down once it noticed the power supply fan was stopped. Repeat. With nothing left to lose, I pulled […]

June 29, 2009 · agw · No Comments
Tags: , ,  · Posted in: Linux