[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
Results (using btrfs-compsize tool): $ sudo compsize /boot/ /bin/ /usr/ Processed 240794 files, 88025 regular extents (89183 refs), 162022 inline. Type Perc Disk Usage Uncompressed Referenced TOTAL 50% 2.7G 5.3G 5.4G none 100% 1.1G 1.1G 1.1G lzo 46% 9.1M 19M 19M zstd37% 1.5G 4.1G 4.2G -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
Seems that btrfs ignores compression attribute if compression was set using mount option. So, the solution is to set compression attributes per-directory: 1) remove 'compress=zstd' from your fstab root record 2) sudo btrfs property set /boot compression lzo # ensure this dir will remain readable by grub 3) sudo btrfs filesystem defragment -vrclzo /boot # ensure /boot gets recompressed 4) for $d in bin etc lib lib64 opt sbin snap srv usr var; do sudo btrfs property set /$d compression zstd; done Directory list is for Ubuntu 18, check and adjust for your own needs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
The simplest workaround for the moment: sudo btrfs property set /boot compression lzo # ensure this dir will remain readable by grub sudo btrfs filesystem defragment -vr /boot # ensure /boot gets recompressed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
This would be an enhancement request. ** Changed in: grub2 (Ubuntu) Status: Confirmed => Triaged ** Changed in: grub2 (Ubuntu) Importance: Undecided => Wishlist -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
** Also affects: grub2 (Arch Linux) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
> Another option: > Archlinux uses this patched grub version: > > https://github.com/Antynea/grub-btrfs This is doubly wrong. Archlinux does not use what you linked, but instead uses mainline version with some patches https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/grub#n60 Either way, it doesn't work for the topic. But I (I'm on Archlinux) did try your github version, there's a user package grub-btrfsᴬᵁᴿ for this one. It does not boot from zstd compressed partition either. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: grub2 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
possible workaround: Patch all btrfs-tools so that they don't compress files accessed by grub with zstd. pitfall: If users repair the filesystem from a live-cd, (eg. run defragmentation), they must make sure that they don't compress files acessed by grub with zstd. Another option: Archlinux uses this patched grub version: https://github.com/Antynea/grub-btrfs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
There may be non root partitions that users want to compress with zstd so you shouldn't -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
I wonder if I should be disabling zstd support in btrfs-progs, if we cannot boot them. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
** Package changed: grub (Ubuntu) => grub2 (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1751517] Re: ubuntu bionic grub can't boot zstd compressed filesystem
** Package changed: update-manager (Ubuntu) => grub (Ubuntu) ** Description changed: - In the /etc/fstab of installed ubuntu bionic sytem I specified compress=zstd for the btrfs root filesytem + In the /etc/fstab of installed ubuntu bionic system I specified compress=zstd for the btrfs root filesytem After runing 'sudo btrfs filesystem defragment -r -czstd /' the system booted to a grub shell. I could boot again by running 'sudo btrfs filesystem defragment -r -clzo /' and specifying compress=lzo in the /etc/fstab. There is also a new bug in the btrfs tools: btrfs does recognize the option '-clzo' but not '-c lzo'. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1751517 Title: ubuntu bionic grub can't boot zstd compressed filesystem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub/+bug/1751517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
