Arch Linux

jlindgren

Member

Registered: 2011-02-27

Posts: 260

Lots of "Failed to unmount ... Device or resource busy" at shutdown

I get lots of "Failed to unmount (filesystem): Device or resource busy" messages at shutdown.  What might be causing these, and how would I go about getting rid of them?

They don't show up in the journal after rebooting; I assume this is because they occur too late in the shutdown process.

Picture taken of the monitor (using "halt" rather than "poweroff"): https://i.imgur.com/zU68u4l.png

loqs

Member

Registered: 2014-03-06

Posts: 19,113

Re: Lots of "Failed to unmount ... Device or resource busy" at shutdown

https://github.com/systemd/systemd/issu … -368135689  https://bbs.archlinux.org/viewtopic.php?id=234329

jlindgren

Member

Registered: 2011-02-27

Posts: 260

Re: Lots of "Failed to unmount ... Device or resource busy" at shutdown

Thank you for the links.  There is a lot of information there that I haven't fully digested, but it sounds like it is a recent systemd bug (and no one really knows the root cause yet).  I have downgraded systemd to version 236, which solves the problem for now.