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08-09-2013 08:42 AM - edited 08-09-2013 09:28 AM
08-09-2013 08:42 AM - edited 08-09-2013 09:28 AM
Odd LVM Error
Trying to expand an volume group, but we are seeing this weird error every time we run any LVM command:
# vgdisplay -v vg05
Could not open the LVM device file /dev/lvm_private/lvm .
open: Permission denied
...
The only other reference to this I found via Google was on this site, which was not answered, and stated that the command needed to be run as root. We are running as root.
The file /dev/lvm_private/lvm exists and has the same permissions as on other servers were we don't see the error.
Any help is greatly appreciated.
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- vgdisplay
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08-09-2013 10:36 AM
08-09-2013 10:36 AM
Re: Odd LVM Error
OK... server was rebooted. It won't come up. Mounts root filesystem and hangs.
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08-09-2013 01:53 PM
08-09-2013 01:53 PM
Re: Odd LVM Error
Reboot again, this time into LVM Maintenance Mode?
From here you can at least try working with VG05 to see what problems you continue to have.
-Bob
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08-10-2013 04:55 PM
08-10-2013 04:55 PM
Re: Odd LVM Error
Check dmesg and syslog.log for possible error messages.
Is this a straight server or a vPar or IVM partition?
What's the model of the server, HP-UX version, and the storage for vg05.
Bill Hassell, sysadmin
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08-12-2013 06:57 AM
08-12-2013 06:57 AM
Re: Odd LVM Error
OK... what it turned out to be was even more bizarre than I imagined.
Apparently, a Progress installation or rogue chown had changed the UID:GID ownershp on the entire /usr/bin directory (and others), so many of the lvm commands weren't owned by root:sys. This is why we saw the odd permissions error.
The system finally rebooted, but nothing was working as expected. A lot of manual chowning following by several swverify's and one more reboot resolved the issue.
Ugh.
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- swverify