lost and found ( for me ? )

Ubuntu : how to upgrade to 12.04 LTS from 11.10


Here’s an explanation of how to upgrade to 12.04 LTS from 11.10 with update-manager.

Before upgrading
# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"

# uname -ri
3.0.0-19-server x86_64


Launch update-manager

You’ll see “upgrade” button like below


click upgrade button.

The upgrade procedure to 12.04 LTS will be processed automatically.



When unpacking libc-bin , which is a part of “installing the upgrades” procedure , you will see the following notice.
Click OK.


In my environment , it took two hours or so to finish the upgrade.

Reboot ubuntu

Get things done !

# uname -ri
3.2.0-24-generic x86_64

# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"

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