I can confirm this on 22.04 LTS. Affects both Ubuntu and Xubuntu images.
It is impossible to install from a DVD.
Three different computers, three different (verified both media and
drive) DVD-R's, three different drives, all behave similar:
- The splash screen after selecting "Try or install Ubuntu" just takes forever
and then throws "Failed to start Ubuntu Live CD installer". Meanwhile the DVD
shoeshining goes on.
- Removing the "quiet splash" from the grub menu indicated that the services
are timeoutting (f.ex. Snap Daemon and Network Manager)
- Adding the "fsck.mode=skip" yielded a successful install on all three
computers.
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https://bugs.launchpad.net/bugs/1930880
Title:
Booting Ubuntu 21.04 from DVD takes more than 30 minutes and its
environment are corrupted
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