Re: determining this UUID stuff

[Mikkel]

Craig White wrote:
>  On Sun, 2009-04-26 at 01:31 -0700, jdow wrote:
>  
> > $blkid /dev/sda1
> > /dev/sda1: LABEL="/boot-7"
> UUID="bfe129cd-8087-4c0b-aad1-08508b7adee2" 
> > SEC_TYPE="ext2" TYPE="ext3"
> >
> > It works by partition not drive.
>  ----
>  I think it is more like, you won't see the results you expect if you
>  supply /dev/sdX as the argument because /dev/sdX is a physical device
>  and not a block device to Linux.
>   
No, /dev/sdX is no different then /dev/sdX# as far as device files
are concerned. It is just that they are not normally labeled if you
have a partition table. But there is no reason you could not give it
one. It is also possible to use a disk without a partition table.
While it is not common usage, there is nothing stopping you from
running mke2fs /dev/sdX and mounting the file system using mount
/dev/sdX /mnt/filesystem.

>  Thus an apparent non-answer is actually the correct answer returning
> no
>  block attributes queried for a physical device.
>  
>  It's apparent in the first line of the man page...
>  
>  NAME
>   blkid - command-line utility to locate/print block device attributes
>  
>  Craig
>   
The reasion it returns no results is because the device does not
have a UUID, not because it isn't a block device.

Mikkel
-- 

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