Clean 20.04, I confirm the bug. There is a very simple way to reproduce the bug, **without even booting an O.S.**
- Set your machine to boot in EFI mode - From the Grub (2.04) Menu, enter command mode (by pressing the key 'c') - Set the root to where you have your iso files: For instance: root=hd1,msdos5 - Then just list one of your Iso file: ls /path/to/iso/ubuntu-20.04-desktop-amd64.iso error out of memory That's it, just 2 commands on Grub to reproduce the bug. Obviously, since you cannot even list the iso file, there is no way you can loopback on it or boot it. I also confirm that "rmmod tpm" did the trick and is a valid workaround until a fix arrives. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
