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View Full Version : best practive for upgrading from ubuntu 9.04 64-bit to 10.10 64-bit



baserunner_ams
November 17th, 2010, 04:10 PM
Hello community,

my current system runs
- ubuntu 9.04 64-bit (jaunty)
- kernel linux 2.6.28-19-generic
- gnome 2.26.1
- /home in md raid5 (3 disks) (mdadm)
- /, /swap and /boot in fakeraid mirror (2 disk)
- 4 GB RAM, quadcore processor (Q6600)

as support and thus updates for 9.04 are discontinued i need to upgrade my system.
Due to my configuration i had a couple issues when upgrading 8.04->8.10 and 8.10->9.04 which was the reason why i waited so long.

My gameplan for the upgrade is to loose the fakeraid if possible (eventually i keep the then spare disk for a windows xp installation later on)

1) Backup whole system to usb disk
2) download latest iso (64-bit alternate) -> burn CD
3) upgrade

any good advice hint is welcome to avoid trobles

thanks

mrgs
November 17th, 2010, 04:48 PM
Might be easier to begin with installing XP.

Try running 10.10 as a live boot first to verify that it works well on your hardware.

lobralleo
November 17th, 2010, 04:56 PM
If you want to avoid upgrading often, you might want to stick to the LTS release and install 10.04 instead of 10.10. This way, you will be covered till early 2012.

mrgs
November 17th, 2010, 05:46 PM
Till early 2013, actually.

lobralleo
November 17th, 2010, 06:12 PM
Till early 2013, actually.

Oh right, LTS are released every two years but supported for 3 full years... my bad :)

oldfred
November 17th, 2010, 07:00 PM
If you are doing a new install rather than an upgrade, you can list all your install apps, to make it easier to reinstall.

from lovinglinux - use dpkg to list installed apps
http://ubuntuforums.org/showpost.php?p=7157175&postcount=5
http://kevin.vanzonneveld.net/techblog/article/restore_packages_using_dselectupgrade/

dpkg --get-selections | grep -v deinstall > ubuntu-files
or
dpkg --get-selections > ubuntu-files

If your are breaking your RAID you also need to remove settings on the RAID drives that cause issues.

Presence1960 on remove old raid setting from HD
http://ubuntuforums.org/showthread.php?t=1325650
sudo dmraid -E -r /dev/sda
sudo dmraid -E -r /dev/sdb
Also check BIOS for raid settings
More discusion:
http://wwww.ubuntuforums.org/showthread.php?p=9274738#post9274738

I also save any system wide settings I customized in /etc, but do not automatically reinstall as they may conflict with the new maintainers version which I always default to first.
Of course you should have good backups. Is /home a separate partition or are you planning on restoring it?