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Error: Unable to open /dev/md0 - unrecognised disk label

csayantanDec 15 2009 — edited Jan 26 2010
hi

i am getting an interesting error.its a fresh installed OEL5.4 x86_64.but facing an issue with partition.how to get rid of from this error?
[root@pc-2 ~]# fdisk -ls

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        3916    31455238+   7  HPFS/NTFS
/dev/sda2            3917        9728    46684890    f  W95 Ext'd (LBA)
/dev/sda5            3917        7863    31704246    7  HPFS/NTFS
/dev/sda6            7864        7876      104391   83  Linux

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        5222    41945683+  83  Linux
/dev/sdb2            5223        5744     4192965   82  Linux swap / Solaris
AS in the Starting it says *"WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted."* so i tried "parted".but parted says
[root@pc-2 ~]# parted /dev/md
Error: Could not stat device /dev/md - No such file or directory.         
Retry/Cancel? retry                                                       
Error: Could not stat device /dev/md - No such file or directory.         
Retry/Cancel? C                                                           
[root@pc-2 ~]# parted /dev/
Error: Error opening /dev: Invalid argument                               
Retry/Cancel? C                                                           
[root@pc-2 ~]# parted /dev/md0
Warning: Unable to determine geometry of file/device /dev/md0.  You should not use Parted unless
you REALLY know what you're doing!
Ignore/Cancel? I                                                          
GNU Parted 1.8.1
Using /dev/md0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) help                                                             
  check NUMBER                             do a simple check on the file system
  cp [FROM-DEVICE] FROM-NUMBER TO-NUMBER   copy file system to another partition
  help [COMMAND]                           prints general help, or help on COMMAND
  mklabel,mktable LABEL-TYPE               create a new disklabel (partition table)
  mkfs NUMBER FS-TYPE                      make a FS-TYPE file system on partititon NUMBER
  mkpart PART-TYPE [FS-TYPE] START END     make a partition
  mkpartfs PART-TYPE FS-TYPE START END     make a partition with a file system
  move NUMBER START END                    move partition NUMBER
  name NUMBER NAME                         name partition NUMBER as NAME
  print [free|NUMBER|all]                  display the partition table, a partition, or all devices
  quit                                     exit program
  rescue START END                         rescue a lost partition near START and END
  resize NUMBER START END                  resize partition NUMBER and its file system
  rm NUMBER                                delete partition NUMBER
  select DEVICE                            choose the device to edit
  set NUMBER FLAG STATE                    change the FLAG on partition NUMBER
  toggle [NUMBER [FLAG]]                   toggle the state of FLAG on partition NUMBER
  unit UNIT                                set the default unit to UNIT
  version                                  displays the current version of GNU Parted and copyright
        information
(parted) rm /dev/md0                                                      
Error: Unable to open /dev/md0 - unrecognised disk label.                 
(parted) rm
Error: Unable to open /dev/md0 - unrecognised disk label.                 
(parted) print                                                            
Error: Unable to open /dev/md0 - unrecognised disk label.                 
(parted) version                                                          

GNU Parted 1.8.1

Copyright (C) 1998 - 2006 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

(parted) quit                                                             
Information: Don't forget to update /etc/fstab, if necessary. 
how to get rid of it.

regards
This post has been answered by 506787 on Dec 24 2009
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Locked on Feb 23 2010
Added on Dec 15 2009
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