I got it [1] now also for the first time when doing apt upgrade and it is pretty scary when considering that /dev/sda3 is the root folder [2].
[1] ... Setting up update-manager-core (1:17.04.8) ... Setting up update-manager (1:17.04.8) ... Processing triggers for libc-bin (2.24-9ubuntu2.2) ... Processing triggers for initramfs-tools (0.125ubuntu9) ... update-initramfs: Generating /boot/initrd.img-4.11.8-041108-generic cryptsetup: WARNING: failed to detect canonical device of /dev/sda3 cryptsetup: WARNING: could not determine root device from /etc/fstab [2] df Filesystem 1K-blocks Used Available Use% Mounted on udev 16353300 0 16353300 0% /dev tmpfs 3276344 108148 3168196 4% /run /dev/sda3 51343840 16054812 32651204 33% / tmpfs 16381712 700604 15681108 5% /dev/shm tmpfs 5120 4 5116 1% /run/lock tmpfs 16381712 0 16381712 0% /sys/fs/cgroup /dev/loop0 85120 85120 0 100% /snap/core/3017 /dev/loop2 83456 83456 0 100% /snap/core/2898 /dev/sda1 523248 1176 522072 1% /boot/efi /dev/sda4 419291016 332865984 86408648 80% /home tmpfs 3276340 64 3276276 1% /run/user/1000 /home/me/.Private 419291016 332865984 86408648 80% /home/me /dev/loop3 85120 85120 0 100% /snap/core/3247 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1580308 Title: update-initramfs cryptsetup must correctly take into account PARTLABEL inside /etc/fstab Status in initramfs-tools package in Ubuntu: Confirmed Bug description: Systematically, - With a /etc/fstab using UUID or LABEL, update-initramfs works correctly - With a /etc/fstab using PARTLABEL, update-initramfs displays following error messages : cryptsetup: WARNING: failed to detect canonical device of PARTLABEL=Ubuntu-Gnome cryptsetup: WARNING: could not determine root device from /etc/fstab cryptsetup: WARNING: failed to detect canonical device of PARTLABEL=USR-Ubuntu The cryptsetup part of update-initramfs must correctly take into account PARTLABEL inside /etc/fstab Thank you in advance ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: initramfs-tools 0.122ubuntu8 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: X-Cinnamon Date: Tue May 10 21:14:24 2016 InstallationDate: Installed on 2014-11-03 (553 days ago) InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) PackageArchitecture: all SourcePackage: initramfs-tools UpgradeStatus: Upgraded to xenial on 2016-05-09 (1 days ago) mtime.conffile..etc.initramfs-tools.initramfs.conf: 2016-02-21T22:22:01 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1580308/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
