This still happens with a 18.04 LTS to 20.04 LTS upgrade! It's really surprising that a years old bug affecting a long term support version is not yet handled or assigned. Needing to install from scratch instead of having the LTS upgrade work means lost time and significant loss of trust. Note, the workaround with /etc/kernel- img.conf is not possible any more.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1318951 Title: kernel update fails with /boot on FAT32 Status in linux package in Ubuntu: Confirmed Bug description: My latest system upgrade failed because it can't upgrade the kernel: $sudo env LANGUAGE=en_US apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies: linux-signed-image-3.13.0-24-generic : Depends: linux-image-3.13.0-24-generic (= 3.13.0-24.47) but 3.13.0-24.46 is installed E: Unmet dependencies. Try using -f. When trying to install linux-image-3.13.0-24-generic manually it fails because it can't create a backup link for the old kernel. This really doesn't surprise me, because /boot is on a fat32 filesystem ( EFI System Partition ) so it shouldn't be possible to create any links at all. My fstab entries for boot are as follows: UUID=0E1E-3E58 /mnt/efi vfat defaults 0 2 /mnt/efi/ubuntu /boot none bind 0 0 Here is the output of me trying to install the kernel manually: $sudo env LANGUAGE=en_US apt-get install linux-image-3.13.0-24-generic Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: efibootmgr secureboot-db shim Use 'apt-get autoremove' to remove them. Suggested packages: fdutils linux-doc-3.13.0 linux-source-3.13.0 linux-tools Recommended packages: grub-pc grub-efi-amd64 grub-efi-ia32 grub lilo The following packages will be upgraded: linux-image-3.13.0-24-generic 1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 114 not fully installed or removed. Need to get 0 B/15,0 MB of archives. After this operation, 1.024 B disk space will be freed. (Reading database ... 205799 files and directories currently installed.) Preparing to unpack .../linux-image-3.13.0-24-generic_3.13.0-24.47_amd64.deb ... Done. Unpacking linux-image-3.13.0-24-generic (3.13.0-24.47) over (3.13.0-24.46) ... dpkg: error processing archive /var/cache/apt/archives/linux-image-3.13.0-24-generic_3.13.0-24.47_amd64.deb (--unpack): unable to make backup link of `./boot/vmlinuz-3.13.0-24-generic' before installing new version: Operation not permitted dpkg-deb: error: subprocess paste was killed by signal (Broken pipe) Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-24-generic /boot/vmlinuz-3.13.0-24-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-24-generic /boot/vmlinuz-3.13.0-24-generic Errors were encountered while processing: /var/cache/apt/archives/linux-image-3.13.0-24-generic_3.13.0-24.47_amd64.deb E : Sub-process /usr/bin/dpkg returned an error code (1) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1318951/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
