On 03/08/2010 10:35 PM, Ciprian Dorin, Craciun wrote:
Hello all!
This bug stalked me for a while, but only now it bit me quite
badly... (Lost about an hour of work...)
So the culprit: inside the fstab file for the `lxc.mount` option I
can use options like `ro` together with `bind`. Unfortunately the
kernel just laughs in my face and ignores any options I've put in
there... :) But not any more: I've updated `./src/lxc/conf.c`
(`mount_file_entries` function) so that when it encounters a `bind`
option it executes it twice (one without any extra options, and a
second time with the remount flag set.)
I've marginally (as in my particular case) tested it and it works.
Any other ideas on how to solve this? Any comments?
Ciprian.
Sorry for the delay. Hopefully, John remind me to take this patch.
I found this paragraph in the mount man page:
[ ... ]
Note that the filesystem mount options will remain the same as those on
the original mount point, and cannot be changed by passing the -o
option along with --bind/--rbind. The mount options can be changed by a
separate remount command, for example:
mount --bind olddir newdir
mount -o remount,ro newdir
So I think your patch is correct :)
Thanks Ciprian.
-- Daniel
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