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List:       busybox
Subject:    mount -o remount systemd incompatibility
From:       Richard Maw <richard.maw () codethink ! co ! uk>
Date:       2012-07-03 9:00:02
Message-ID: 20120703090001.GA26222 () codethink ! co ! uk
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mount's source code mentions that remount behaviour may not be
compatible with util-linux.

I can confirm that this is the case and it doesn't work with Systemd.

Systemd has a helper program to remount everything in fstab, since it
may have mounted it with the incorrect options. It is implemented by
reading /etc/fstab and shelling out to `/bin/mount -o remount $device`.

This is a no-op in busybox because remounting reads the mount options
from /etc/mtab.
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