Michael Biebl wrote...

> To mark as mountpoint as network mount, there is the _netdev mount
> option.

While I can confirm this provides a sane and safe shutdown for a mounted
AoE-device, this works only if the device was initially mounted using
that extra option. A later "mount -o remount,_netdev" exits zero but
does not change /proc/mounts, hence resulting in havoc. If you could
shed some light on this?

> See man systemd.mount. systemd tries to autodetect that for
> various network file systems
> 
> https://github.com/systemd/systemd/blob/master/src/fstab-generator/fstab-generator.c#L164
> 
> https://github.com/systemd/systemd/blob/master/src/basic/mount-util.c#L516

As a suggestion (probably too late for stretch), an extension of that
check could inspect the device name as well, to detect AoE, NBD and even
iSCSI devices - the latter probably needs some extra magic.

    Christoph

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