device label

[Rashkae]

Robert Holtzman wrote:
> Tried to change the label on a thumb drive using 
> 
> e2label /dev/sdb1 disk
> 
> and got "e2label: Bad magic number in super-block while trying to open
> /dev/sdb
> Couldn't find valid filesystem superblock."
> 
> fdisk -lu shows 
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdb1   *         128     3915775     1957824    b  W95 FAT32
> Partition 1 has different physical/logical endings:
>      phys=(242, 254, 63) logical=(243, 190, 11)
> 
> A search on the error message and on the output of disk turned up
> several hits but they had to do with the inability to mount. 
> 
> Also tried to use gparted but the label option was greyed out.
> 
> All this on a fully updated Lucid.
> 
> Any ideas?
> 
> 

e2label is for ext2/3/4 filesystems.  This is a Fat32 file system (aka: 
ms-dos filesystem), so you need mtools.

Here's a good step by step: (although, it's a bit dated, so I don't know 
if there's an easier way to do this now)

http://embraceubuntu.com/2006/03/01/editing-fat32-partition-labels-using-mtools/