Public bug reported: Hello there.
I have just installed Ubuntu 20.04 on my PC with a single partition on btrfs file system. There was no show any errors during installation. When I rebooted, I got the legacy grub menu and when I select any option of boot (either windows or ubuntu), I'm getting message: error: sparse files not allowed. Press any key to continue. I found some manaul and removed the following lines doing via that manual: recordfail=1 if [ -n ${have_grubenv} ]; then save_env recordfail; fi So, when I removed these entries, the system booted just fine. I have no idea why these two lines would cause a problem, but they appear to. There already were same bugs, I've seen(one of them more than 9 years ago started (#464743 e.g.)). Is it so hard to fix this? ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: btrfs grub sparse ** Tags removed: file -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1902483 Title: Sparse file not allowed (on btrfs), 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1902483/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs