- Mount the downloaded ISO image in the CD drive mounting point by typing the following:
sudo mount -t iso9660 ubuntu-7.10-alternate-i386.iso /cdrom -o loop
- Run the upgrading application found on the CD.
gksu "sh /cdrom/cdromupgrade"
- The machine will now upgrade and eventually reboot. You may now remove the CD entry to the image found in the file: /etc/apt/sources.list
Saturday, October 20, 2007
Upgrade Ubuntu from an ISO image
Here is a tip I ended using on a machine that didn't have a CD drive and no connection to the internet. It already had Ubuntu installed and needed to upgrade to the next release. First you need to download the Ubuntu Alternate CD image (text base install) ubuntu-7.10-alternate-i386.iso