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Full Discussion: mount LVM duplication drives
Top Forums UNIX for Advanced & Expert Users mount LVM duplication drives Post 302123271 by onthetopo on Monday 25th of June 2007 01:31:57 AM
Old 06-25-2007
thanks that's a good way to start if you are installing a brand new system.
But i can't afford a system reinstalltion of my primary hd.

If my primary didn't have LVM partition I would just create a RAID1 image on the backup hd. However, since the LVM partition already exists on my primary hd and since I don't want to fdisk my primary hd, I could only clone it to my backup hd and hope to mount it. The problem is simply that the cloned hd couldn't be mounted when booting from primary hd since both hd have identical volume ID fingerprint. I hope there is someway to change the id of one hd.
 

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LEARN ABOUT MOJAVE

vgcfgbackup

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

NAME

       vgcfgbackup - backup volume group descriptor area

SYNOPSIS

       vgcfgbackup [-d|--debug] [-f|--file filename] [-h|--help] [--ignorelockingfailure] [-P|--partial] [-v|--verbose] [VolumeGroupName...]

DESCRIPTION

       vgcfgbackup  allows you to backup the metadata of your volume groups.  If you don't name any volume groups on the command line, all of them
       will be backed up.

       In a default installation, each volume group gets backed up into a separate file bearing the name of the  volume  group  in  the  directory
       /etc/lvm/backup.   You can write the backup to an alternative file using -f.  In this case if you are backing up more than one volume group
       the filename is treated as a template, and %s gets replaced by the volume group name.

       NB. This DOESN'T backup user/system data in logical volume(s)!  Backup /etc/lvm regularly too.

OPTIONS

       See lvm for common options.

SEE ALSO

       lvm(8), vgcfgrestore(8)

Sistina Software UK                                      LVM TOOLS 2.02.95(2) (2012-03-06)                                          VGCFGBACKUP(8)
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