> for those affected, does this happen every boot/shutdown? Yes, I'm getting the following messages on Hirsute at the end of every shut down (or reboot):
[ OK ] Reached target Reboot. [ timestamp] XFS: attr2 mount option is deprecated. [ timestamp] sd-umoun[2337]: Failed to unmount /oldroot: Device or resource busy [ timestamp] sd-umoun[2337]: Failed to unmount /oldroot/sys: Device or resource busy [ timestamp] shutdown[1]: Could not detach DM /dev/dm-1: Device or resource busy [ timestamp] shutdown[1]: Could not detach DM /dev/dm-0: Device or resource busy [ timestamp] shutdown[1]: Failed to finalize file systems, DM devices, ignoring. > is this a 'standard' installation, using the standard iso? Yes, this was installed using a nightly hirsute-live-server-amd64.iso, with disk encryption enabled during installation. > what do you have mounted? what's the output of 'mount' and the output of 'lsblk'? # mount ... /dev/mapper/ubuntu--vg-ubuntu--lv on / type xfs (rw,noatime,attr2,inode64,logbufs=8,logbsize=32k,noquota) /dev/nvme0n1p2 on /boot type ext4 (rw,relatime) /dev/nvme0n1p1 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro) ... Full mount output at https://gist.githubusercontent.com/joliss/c13e728ee039a2440e98f7ba6dd7ecd8/raw/25678bdaa17707a41b81b61c0fc648e01968ca90/mount # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 99.2M 1 loop /snap/core/10908 loop1 7:1 0 25.9M 1 loop /snap/heroku/4037 loop2 7:2 0 72M 1 loop /snap/lxd/19766 loop3 7:3 0 55.5M 1 loop /snap/core18/1988 loop4 7:4 0 32.3M 1 loop /snap/snapd/11107 loop5 7:5 0 32.3M 1 loop /snap/snapd/11402 loop6 7:6 0 68.7M 1 loop /snap/lxd/19823 nvme0n1 259:0 0 1.8T 0 disk ├─nvme0n1p1 259:1 0 512M 0 part /boot/efi ├─nvme0n1p2 259:2 0 1G 0 part /boot └─nvme0n1p3 259:3 0 1.8T 0 part └─dm_crypt-0 253:0 0 1.8T 0 crypt └─ubuntu--vg-ubuntu--lv 253:1 0 1.8T 0 lvm / -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1905166 Title: systemd-shutdown cannot detach DM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1905166/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs