partial upgrades are not supported, and during upgrades we generally do not recreate initrds for old kernels.
Meaning one should have at least .old kernel+initrd pair bootable. It is more of linux bug maybe that v5.4 does not support zstd compressed initrd? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1941649 Title: switch to zstd by default breaks booting focal LTS kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1941649/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
