Hello,
There is a problem in the code of util-linux-2.27.1, in the umount binary.
The command
umount -a -O _netdev
does _not_ umount anything, despite an /etc/fstab with the likes of
...
alpha:/var/mail /var/mail nfs _netdev,soft,tcp
...
The "mount -a -O _netdev" command works as expected. However, the
/run/mount/utab files is empty, and I was unable to get the "umount -a -O
_netdev" to work as advertised. Running it with "--verbose" flag merely
confirmed that everything was being ": ignored".
I have a physical /etc/mtab (not symlink), and the "_netdev" option is missing
from /etc/mtab file, but that's probably expected???
If I manually add it (_netdev) to /etc/mtab, then the umount -a -O _netdev
does work. But /run/mount/utab is empty. Trying to step through the code
gets pretty brutal, and the *fs population is still hidden inside some
macro...and I can never find where the /run/mount/utab is even being parsed in
the umount code-path.
This is with a root-over-NFS setup, in case that matters. Probably shouldn't.
Kernel is 4.3.0.
Is this a regression? Seems there were issues before...wondering if it
re-surfaced.
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