I recently upgraded BusyBox from 1.18.1 to 1.23.2, and now I find I
cannot change the read-write mode on a loop mount. That is, if the
original mount is something like:
mount -o loop,ro /private/myopt.ext2 /opt
and I then remount this this:
mount -o remount,rw /opt
With 1.18.1 the filesystem is remounted as read-write as expected, but
in 1.23.2 the command has no effect and the filesystem remains read-only.
At first glance, it looks like the problem was introduced in BusyBox
1.21.0 when the set_loop() function in libbb/loop.c was modified to
accept the ro argument. But I haven't yet narrowed down exactly what's
going wrong.
Has anyone else seen this problem? I'm happy to work out a fix, but
wanted to check with the list first.
<csg>
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