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Top Forums UNIX for Advanced & Expert Users Grub - how to boot a copy of Linux (full system backup) Post 302762763 by coolatt on Tuesday 29th of January 2013 03:22:03 AM
Old 01-29-2013
Quote:
Originally Posted by botao
- have you heard about "mondo" ?

- it's GPL disaster recovery solution.

--> Mondo Rescue - GPL disaster recovery solution

- checki it out, and if possible, give it a try...

BTW in order for grub to boot from some partition, it must be able to find a "boot sector" (or "boot record") already there.

(in your case, you should at least use `dd' to save your boot sector, and restore it along with your 'tar' stuff..

ok ?

HTH

good luck, and success !

alexandre botao
("comets never dodge")
I think u didnt understand me.
Let me clarify.
I do FULL backup of my Debian Lenny 5 server (machine A) using tar.
The restore of tar backup is Ok..its working great on the spare machine (machine B).

Code:
/
 etc
 dev
 root
 bin
 etc...

Now on the above running system (the spare machine) i want to create a directory
named "SystemBackup02":


Code:
/
 etc
 dev
 root
 bin
 SystemBackup02
 etc...

Next time I want to
1. untar the contents of my backup in the "SystemBackup02"
directory.
2.change ip in /SystemBackup02/etc/network/interfaces & modify other confs
3.add an entry in grub, telling grub that it can also boot from this directory.

so the aim is to be able to boot from several versions of system backup
 

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

NAME
vgcfgrestore - restore volume group descriptor area SYNOPSIS
vgcfgrestore [-d|--debug] [-f|--file filename] [-l[l]|--list] [-h|--help] [-M|--Metadatatype1|2] [-t|--test] [-v|--verbose] VolumeGroupName DESCRIPTION
vgcfgrestore allows you to restore the metadata of VolumeGroupName from a text backup file produced by vgcfgbackup. You can specify a backup file with --file. If no backup file is specified, the most recent one is used. Use --list for a list of the available backup and archive files of VolumeGroupName. OPTIONS
-l | --list -- List files pertaining to VolumeGroupName List metadata backup and archive files pertaining to VolumeGroupName. May be used with the -f option. Does not restore Vol- umeGroupName. -f | --file filename -- Name of LVM metadata backup file Specifies a metadata backup or archive file to be used for restoring VolumeGroupName. Often this file has been created with vgcfg- backup. See lvm for common options. REPLACING PHYSICAL VOLUMES
vgdisplay --partial --verbose will show you the UUIDs and sizes of any PVs that are no longer present. If a PV in the VG is lost and you wish to substitute another of the same size, use pvcreate --restorefile filename --uuid uuid (plus additional arguments as appropriate) to initialise it with the same UUID as the missing PV. Repeat for all other missing PVs in the VG. Then use vgcfgrestore --file filename to restore the volume group's metadata. SEE ALSO
lvm(8), vgcreate(8) Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) VGCFGRESTORE(8)
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