Planet HantsLUG

December 19, 2014

Steve Kemp

Switched to using attic for backups

Even though seeing the word attic reminds me too much of leaking roofs and CVS, I've switched to using the attic backup tool.

I want a simple system which will take incremental backups, perform duplication-elimination (to avoid taking too much space), support encryption, and be fast.

I stopped using backup2l because the .tar.gz files were too annoying, and it was too slow. I started using obnam because I respect Lars and his exceptionally thorough testing-regime, but had to stop using it when things started getting "too slow".

I'll document the usage/installation in the future. For the moment the only annoyance is that it is contained in the Jessie archive, not the Wheezy one. Right now only 2/19 of my hosts are Jessie.

December 19, 2014 01:51 PM

December 11, 2014

Steve Kemp

An anniversary and a retirement

On this day last year I we got married.

This morning my wife cooked me breakfast in bed for the second time in her life, the first being this time last year. In thanks I will cook a three course meal this evening.

 

In unrelated news the BlogSpam service will be retiring the XML/RPC API come 1st January 2015.

This means that any/all plugins which have not been updated to use the JSON API will start to fail.

Fingers crossed nobody will hate me too much..

December 11, 2014 10:56 AM

December 07, 2014

Steve Kemp

I eventually installed Debian on a new desktop.

Recently I build a new desktop system. The hightlights of the hardware are a pair of 512Gb SSDs, which were to be configured in software RAID for additional speed and reliability (I'm paranoid that they'd suddenly stop working one day). From power-on to the (GNOME) login-prompt takes approximately 10 seconds.

I had to fight with the Debian installer to get the beast working though as only the Jessie Beta 2 installer would recognize the SSDs, which are Crucual MX100 devices. My local PXE-setup which deploys the daily testing installer, and the wheezy installer, both failed to recognize the drives at all.

The biggest pain was installing grub on the devices. I think this was mostly this was due to UFI things I didn't understand. I created spare partitions for it, and messaged around with grub-ufi, but ultimately disabled as much of the "fancy modern stuff" as I could in the BIOS, leaving me with AHCI for the SATA SSDs, and then things worked pretty well. After working through the installer about seven times I also simplified things by partitioning and installing on only a single drive, and only configured the RAID once I had a bootable and working system.

(If you've never done that it's pretty fun. Install on one drive. Ignore the other. Then configure the second drive as part of a RAID array, but mark the other half as missing/failed/dead. Once you've done that you can create filesystems on the various /dev/mdX devices, rsync the data across, and once you boot from the system with root=/dev/md2 you can add the first drive as the missing half. Do it patiently and carefully and it'll just work :)

There were some niggles though:

  • Jessie didn't give me the option of the gnome desktop I know/love. So I had to install gnome-session-fallback. I also had to mess around with ~/.config/autostart because the gnome-session-properties command (which should let you tweak the auto-starting applications) doesn't exist anymore.

  • Setting up custom keyboard-shortcuts doesn't seem to work.

  • I had to use gnome-tweak-tool to get icons, etc, on my desktop.

Because I assume the SSDs will just die at some point, and probably both on the same day, I installed and configured obnam to run backups. There is more testing and similar, but this is the core of my backup script:

#!/bin/sh

# backup "/" - minus some exceptions.
obnam backup -r /media/backups/storage --exclude=/proc --exclude=/sys --exclude=/dev --exclude=/media /

# keep files for various periods
obnam forget --keep="30d,8w,8m" --repository /media/backups/storage

December 07, 2014 08:12 AM

December 06, 2014

Adam Trickett

Picasa Web: Xmas Break 2014

Xmas Break 2014

Long weekend in France

Location: France
Date: 6 Dec 2014
Number of Photos in Album: 22

View Album

by Adam Trickett at December 06, 2014 08:00 AM