Hi Helmut,
are you sure that 'mkfs.ext2/3/4 -L "label" /dev/xxx' doesn't create a
new fs?
Afaik to change a label of a given (ext2/3/4) filesystem you should use
tune2fs.
I don't have a linux system available right now but this is what I would
expect and what would make a lot more sense then changing a label via
mkfs.ext2/3/4. If you are correct with that labeling thing then the
btrfs way makes like 1000x more sense then the way ext2/3/4 does it.
mkfs should only be used for creating filesystems. For changing existing
fs tools like tune2fs, btrfs etc. should be used.
Regards,
Felix
On 2/27/12 10:15 PM, Helmut Hullen wrote:
Hallo, Duncan,
Du meintest am 27.02.12:
I've said this several times: Your expectations are wrong. You
don't label partitions.
Yes - now I know.
But I'm afraid other people also expect wrong - when I use
mkfs.ext[234] then this option works (in another way than with
"mkfs.btrfs").
AFAIK, it works in the same way... that is, it labels the, in that
case, ext2/3/4 filesystem, in this case (mkfs.btrfs), btrfs
filesystem.
From the manpages:
mkfs.btrfs (aka mkbtrfs):
-L, --label name
Specify a label for the filesystem.
mkfs.ext2/3/4 (aka mke2fs):
-L new-volume-label
Set the volume label for the filesystem to
new-volume-label. The maximum length of the
volume label is 16 bytes.
But there's a small difference:
mke2fs -L MyLabel /dev/sdn4
only sets/changes the label (ok - it tests the type of the partition and
refuses labeling if the type doesn't fit).
mkfs.btrfs -L MyLabel /dev/sdn4
not only sets/changes the label but also (re-)creates a btrfs
filesystem, using the default parameters.
I had to learn this difference ...
Viele Gruesse!
Helmut
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