Ubuntu - Upgrade from 8.05 to 9.04 by ISO

Envirnment
  • Ubuntu 8.05
Intorduction
Wanna upgrade its from 8.05 to 9.04 offline by ISO

Procedures
The step should be step by step from 8.10 to 9.04. Just download the alternate version
  • ubuntu-8.10-alternate-amd64.iso / ubuntu-8.10-alternate-i386.iso
  • ubuntu-9.04-alternate-amd64.iso / ubuntu-9.04-rc-alternate-i386.iso
 Mount this and run
#gksu "sh /cdrom/cdromupgrade"
Thinking is offline upgrading before, so via ISO. However, find that still need online to download latest version of some applications

Moreover, should not remote upgrade, due to will ask some question if get different

Reference
  • https://help.ubuntu.com/community/UpgradeNotes