Ubuntu 10.10 Server : How to upgrade from 10.10 to 11.04

Here’s an explanation of how to upgrade Ubuntu 10.10 to 11.04.

Now I’m using Ubuntu 10.10 Server 64bit n’ upgrading to 11.04.

root@ubuntu-1:~# tail -1 /etc/lsb-release DISTRIB_DESCRIPTION="Ubuntu 10.10" root@ubuntu-1:~# uname -r 2.6.35-28-server

I highly recommend you do an upgrade w/ local terminal not through remote console like VNC , SSH etc.

[ Upgrade to Ubuntu 11.04 via GUI ]

1.

Before upgrading OS , upgrade packages.

# apt-get update # apt-get upgrade

2. Launch Update Manager n’ click “Upgrade”


Just follow instructions.

When upgrading packages , I was asked about current configurations (update or keep current configuration )
I chosed “keep current configuration”

After rebooting OS , your server will be Ubuntu 11.04

Welcome to Ubuntu 11.04 (GNU/Linux 2.6.38-8-server x86_64) # cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=11.04 DISTRIB_CODENAME=natty DISTRIB_DESCRIPTION="Ubuntu 11.04" # uname -r 2.6.38-8-server

In my case , it took one hour or so to finish upgrading.

[ Upgrade to Ubuntu 11.04 via CLI ]

Before upgrading OS , upgrade packages.

# apt-get update # apt-get upgrade

install upgrading tool.

# apt-get install update-manager-core

edit /etc/update-manager/release-upgrades n’ set Prompt=normal

# egrep -i ^prompt /etc/update-manager/release-upgrades Prompt=normal

do an upgrade

# do-release-upgrade

[ Memo ]

After upgrading to 11.04 , SCSI device names were changed from /dev/cciss/c0d0p1(c0d1p1) to /dev/sda1(sdb1).

Ubuntu 10.10 : /dev/cciss/c0d0p1 , /dev/cciss/c0d1p1
Ubuntu 11.04 : /dev/sda1 , /dev/sdb1