Public bug reported: I just updated to an unstable kernel build from the kernels team Repo it´s the 5.11-2.3 package (5.11 RC3) The mount of /dev/boot fails with a message:
IO charset iso8859-1 not found this is probably due to the kernel being unable to load the nls_iso8859-1 module. I see multiple messages with BPF:No data and for the nls_iso8859-1 module a message: failed to validate module [nls_iso8859_1] BTF: -22 this is probably introduced by this patch: https://lkml.org/lkml/2020/11/6/1143 I don´t undestand what BTF validation is and whether this is an issue with linux 5.11-rc3 or with how the kernel modules are packaged in Ubuntu. My machine is a Renoir (zen2) based Acer Laptop running in UEFI mode, with a fat32 /boot partition and a ext4 / root partition. The root partition gets mounted, but once the /boot should be mounted, this fails with the mentioned error.. Other modules seem to load fine, things like "amdgpu" are already loaded! ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Attachment added: "boot_fail.jpg" https://bugs.launchpad.net/bugs/1911359/+attachment/5452444/+files/boot_fail.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1911359 Title: Boot fails: failed to validate module [nls_iso8859_1] BTF: -22 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1911359/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
