On Sun, 13 Jan 2013, Warren Block wrote:
On Sun, 13 Jan 2013, kpn...@pobox.com wrote:
On Sun, Jan 13, 2013 at 08:09:00AM +0700, Erich Dollansky wrote:
For what is glabel then still good?
It is still useful for partition schemes that don't have labels (eg, MBR)
AND the filesystem used doesn't support labels itself AND the end of the
partition does not get touched by the filesystem.
But it doesn't matter what the filesystem does. Access to the last block is
not allowed by the label device. The filesystem does not even see it. See
my reply in -fs:
http://lists.freebsd.org/pipermail/freebsd-fs/2013-January/016113.html
Sorry, forgot to mention that one possible use for glabel is to label a
swap partition on an MBR drive.
# glabel label myswap /dev/ada0s1b
And then in /etc/fstab:
/dev/label/myswap none swap sw 0 0
One block is used for metadata at the end of ada0s1b, but it's safe from
overwriting because /dev/label/myswap does not include that block.
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