shellscript conditional to check for external disk

Roland Smith rsmith at
Sun Jun 22 09:13:19 UTC 2008

On Sun, Jun 22, 2008 at 12:22:07AM +0100, RW wrote:
> On Sun, 22 Jun 2008 00:47:31 +0200
> Roland Smith <rsmith at> wrote:
> > Use glabel(8) to give the device an unique label. There is no telling
> > which device /dev/da0s1d is pointing to! After labeling you can check
> > for /dev/<fstype>/<yourlabel>, which should be unique.
> I think that should be:
> /dev/label/<yourlabel>

That is only for non-filesystem labels, according to glabel(8):

    "This class also provides volume label detection for file systems.  Those
     labels cannot be set with glabel, but must be set with the appropriate
     file system utility, e.g. for UFS the file system label is set with
     tunefs(8).  Currently supported file systems are:

           o   UFS1 (directory /dev/ufs/).
           o   UFS2 (directory /dev/ufs/).
           o   MSDOSFS (FAT12, FAT16, FAT32) (directory /dev/msdosfs/).
           o   CD ISO9660 (directory /dev/iso9660/).
           o   EXT2FS (directory /dev/ext2fs/).
           o   REISERFS (directory /dev/reiserfs/).
           o   NTFS (directory /dev/ntfs/).

     Non file-system labels are created in the directory /dev/label/."

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