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Operating Systems Linux Red Hat No VolGroup00 found after restart of the system Post 303012317 by bakunin on Friday 2nd of February 2018 05:14:07 AM
Old 02-02-2018
This is the root cause of your problem:

Quote:
Originally Posted by Anjan Ganguly
Code:
Red Hat nash version 5.1.19.6 starting
  Reading all physical volumes.  This may take a while...
  No volume groups found

Everything else is just a consequence of that. It seems that your system has lost touch with the hard disk(s) once attached to it. Reasons could be (the list is not exhaustive):

- disk(s) have been removed physically
- adapter(s) to which the disk(s) is/are attached is/are removed/broken
- if disks are LUNs the zoning has been changed

and many reasons more. Can you tell us how your system was built (hardware-wise) so that we can narrow the possible reasons down?

I hope this helps.

bakunin
 

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volunroot(8)						      System Manager's Manual						      volunroot(8)

NAME
volunroot - Remove Logical Storage Manager hooks for rootable volumes SYNOPSIS
/usr/sbin/volunroot [-a | -A] OPTIONS
Specifies that all volumes on the system disk be converted back to UNIX disk partitions, not just the root and swap volumes, rootvol and swapvol. Forces removal of the private region unless it is the last one in the system. DESCRIPTION
The volunroot script can be used to restore the accessibility of the root, swap, and other file systems on the boot disk directly through disk partitions instead of through volume devices. The script also removes other changes that were made to enable booting of the system from the root volume, so that the system will boot with no dependency on the Logical Storage Manager. When used with no options, volunroot affects only the root and swap volumes, rootvol and swapvol. For volunroot to work properly, only one plex must exist for each of the affected volumes. This plex must be the one created by volrootmir or the original plex created when the root disk was encapsulated. This ensures that the underlying subdisks will have equivalent partitions defined for them on the disk. If these conditions are not met, the volunroot operation fails and none of the volumes are converted to disk partitions. The unwanted plexes can be removed using either voledit or volplex. SEE ALSO
volencap(8), voldiskadm(8), voledit(8), volintro(8), volplex(8), volrootmir(8) volunroot(8)
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