Managed to detect/mount iscsi devices without using _netdev keyword in
/etc/fstab. Made changes within src/fstab-generator/ftstab-generator.c
and it seems to work. The only problem is during shutdown/reboot, my
iscsi xfs filesystem does not unmount cleanly before the network/iscs
service/system is shutdown. When this happens I receive a xfs
error/warning.
However this doesn't happen when _netdev is specified in /etc/fstab for
my iscsi device. Seems _netdev handles management of mounts/unmounts
before killing things off. How exactly does _netdev manage unmounting
filesystems during a shutdown/reboot? I would like to invoke that same
netdev unmount code/logic myself from within systemd source but without
using the _netdev keyword. Unfortunately it is a requirement to not use
_netdev within /etc/fstab for iscsi. Seems _netdev takes a long time to
timeout and continue when unable to mount.
Checked src/core/mount.c and src/core/unmount.c but not sure what to do
to duplicate how _netdev manages unmounting before the system is
shutdown or rebooted. Do I need a special before and after keyword in
/etc/fstab so my xfs filesystems is unmounted before shutting down the
iscsi service/network/system? If so, will such keywords also propagate
to /run/systemd/generator/remote-fs-target.requires?
Thanks,
Tony
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