07-30-2010
Hi!
This sounds very complicated. Or maybe I haven't understood the problem description. But You want to run it EVERY fourth saturday?
Wouldn't it help to:
1) Schedule a cron job to run every saturday
2) let it read the "lastbkp" file where You have stored a backup counter
3) if it is four, do Your backup routine, write "1" to the file, and exit
4) if it is less than four, just increment it by one and write it back.
Best regards,
Lakris
This User Gave Thanks to Lakris For This Post:
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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)