Re: F19 not able to boot by UUID

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On 08/29/2013 09:26 AM, Greg Woods wrote:
<>

If the file system is ext2, ext3, or ext4, then the UUID for a file
system on a physical or LVM device can be printed with UUID:

# tune2fs -l /dev/sda1

or

# tune2fs -l /dev/mapper/ROOT-ROOT

(change device names as appropriate for your system)

you reminded me of what i did not recall and after running command, i recall
why i do not use it. :=(

[geo@localhost Documents]$ tune2fs -l /dev/sdb3
tune2fs 1.41.12 (17-May-2010)
tune2fs: Permission denied while trying to open /dev/sdb3
Couldn't find valid filesystem superblock.
[geo@localhost Documents]$ tune2fs -l /dev/sdb5
tune2fs 1.41.12 (17-May-2010)
tune2fs: Permission denied while trying to open /dev/sdb5
Couldn't find valid filesystem superblock.
[geo@localhost Documents]$ ls /dev/mapper
control
[geo@localhost Documents]$ dfs
/dev/sdb3             10317860   7525200   2687852  74% /
/dev/sdb5             21931908  20208072    609676  98% /home
[geo@localhost Documents]$

"dfs" is a script i built to get a clean view of drives.

#!/bin/sh
   ####  fn=   dfs  .2008.1223.2341
   ##   use=   show disk usage in dev order
   df -B 1024|grep /dev/sd|sort

and;

[geo@localhost Documents]$ ll /dev/sd[ab]?
brw-rw----. 1 root disk 8,  1 Aug 26 09:45 /dev/sda1
brw-rw----. 1 root disk 8,  2 Aug 26 09:45 /dev/sda2
brw-rw----. 1 root disk 8, 17 Aug 26 09:45 /dev/sdb1
brw-rw----. 1 root disk 8, 18 Aug 26 09:45 /dev/sdb2
brw-rw----. 1 root disk 8, 19 Aug 26 09:45 /dev/sdb3
brw-rw----. 1 root disk 8, 20 Aug 26 09:45 /dev/sdb4
brw-rw----. 1 root disk 8, 21 Aug 26 09:45 /dev/sdb5
brw-rw----. 1 root disk 8, 22 Aug 26 09:45 /dev/sdb6
[geo@localhost Documents]$



--Greg



--

peace out.

in a world with out fences, who needs gates.

sl6.3 linux

tc.hago.

g
.

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