[systemd-devel] Again, why this strange behavior implied by "auto" in fstab ?

[Lennart Poettering]

On Mi, 24.01.18 14:51, Thomas Blume (Thomas.Blume at suse.com) wrote:

> Would this be an acceptable approach?

Since a long time there has been a proper API for this: just take a
BSD file lock on the device node and udev won't bother with the
device anymore. As soon as you close the device fully (and thus also
lost all locks), udev will notice and then reprobe it again.

It's a bit underdocumented, but it's the right way, doesn't leave
artifacts in the system around and uses the appropriate OS primitives
for what it needs to do.

If you need this in shell, then I figure util-linux' flock tool should
be something you can make work, as it appears to be a command line
wrapper around BSD file locks.

Lennart

-- 
Lennart Poettering, Red Hat