Upgrade 10.04 to 14.04?

[Karl Auer]

We have a client who is running an Ubuntu 10.04 server. They want to
upgrade to 14.04. The machine is running 4x500GB HDD in a RAID10
configuration as md0.

Can I reasonably expect to be able to upgrade this machine, or should I
bite the bullet and re-install?

The process seems to involve upgrading through the other LTS releases,
so that's actually two upgrades - 10.04 to 12.04 and 12.04 to 14.04.
Still seems to offer lots of opportunity for fail.

And assuming I do try an upgrade, what's the apt-get way to do it? I
don't have a GUI on the server, and just about every answer on the 'net
talks about upgrading desktops. "do-release-upgrade -m server" seems to
be designed to do this, but there is no way to control the target
version; I'm a bit concerned that it will try to go straight to 14.04.

Can I do it from CD/USB? Internet access at this location is very slow,
and the downloads will be around 2GB.

Actually the more questions I ask the more convinced I become that I
should just re-install.

Regards, K.

-- 
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Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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