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btrfs-progs: let user know that devid can be used if path is missing

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When the device disappear the path goes missing,
and that will be the one of the reason that user
will replace the device.

The devid of the missing btrfs device can be
obtained using the new cli option
 btrfs fi show --kernel

And which can be used in the replace command.
---
btrfs replace start /dev/sdc /dev/sde /btrfs
Error: Unable to open device '/dev/sdc'
        Try using the devid instead of the path
---

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Anand Jain 2013-07-26 01:35:26 +08:00 committed by David Sterba
parent 7ea01da9c8
commit bbe9df154b
1 changed files with 1 additions and 0 deletions
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cmds-replace.c
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@ -245,6 +245,7 @@ static int cmd_start_replace(int argc, char **argv)
if (fdsrcdev < 0) {
fprintf(stderr, "Error: Unable to open device '%s'\n",
srcdev);
fprintf(stderr, "\tTry using the devid instead of the path\n");
goto leave_with_error;
}
ret = fstat(fdsrcdev, &st);