friends, may I request code review for the earth-shattering fix to:
6495558 zoneadm -z <zone> boot should not only check but repair filesystems
http://cr.opensolaris.org/~batschul/onnv-vplat/
backround:
Evaluation
when booting a zone, zoneadm ( ie. vplat.c:dofsck() ) should perform the same
tasks as the /usr/sbin/mountall script,
which does a 'is suitable for mounting' (fsck -m) check first, followed by a
preen fsck (fsck -p) if the former failed.
the obvious quick fix would be to change the code in vplat.c:dofsck()
825 argv[0] = "fsck";
826 argv[1] = "-m";
827 argv[2] = (char *)rawdev;
828 argv[3] = NULL;
829
830 status = forkexec(zlogp, cmdbuf, argv);
831 if (status == 0 || status == -1)
832 return (status);
833 zerror(zlogp, B_FALSE, "fsck of '%s' failed with exit status
%d; "
834 "run fsck manually", rawdev, status);
835 return (-1);
to always just run fsck in preen mode (shouldn't cause any real problem) or
fork off a 2nd fsck in preen mode
if the first fsck -m failed.
actually the fix will be to just execute fsck in preen mode (fsck -p) rather
then
doing the 'is suitable for mounting' and preen fsck dance. if the former fails,
the latter will have to be done anyways. the latter however kind of implies
the former.
thanks!
--
frankB
It is always possible to agglutinate multiple separate problems
into a single complex interdependent solution.
In most cases this is a bad idea.
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