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Operating Systems Linux Red Hat Backing up and restoring RHEL 6.3 VM Post 302825141 by bakunin on Sunday 23rd of June 2013 05:52:06 PM
Old 06-23-2013
Quote:
Originally Posted by md888
1) Find out what kind of VM, and use the vm tools
This is a sound plan, but how can we help in this? I suggest you go to the administrator of the system the VM runs on and you find out how the system file space is provided. It might be a LUN from a storage system (depending on the storage system you can take a backup there, even when running), a file on the host systems filesystem (power down the VM and simply copy the file), a bootable NPIV-provided share (use SAN systems methods, as above) and probably some other things i haven't mentioned here.

"Its a RHEL 6.3 i didn't set up" is a rather meagre description of your environment and whatever we can suggest will be as substantial as your description - that is: not at all.

Quote:
Originally Posted by md888
2) Take a tar of important directories
Simple. Backup "/path/to/somedir":
Code:
(cd /path/to ; tar cf - ./somedir | gzip -9 > /backupdir/somedir.$(date +'%Y%m%d').tar.gz)

Restore same:
Code:
(rm -rf /path/to/somedir ; cd /path/to ; gzip -cd /backupdir/somedir.<somedate>.tar.gz | tar xf -)

Quote:
Originally Posted by md888
3) Schedule filesystem backup
Use "cron" to schedule a (perhaps recurring) backup, but the real question is: which tool(s) do you want to use for this purpose. Depending on the answer you will have to do some or many preparations, or none at all.

Again: meagre description of environment leads to meagre/very generic answers.

From the "50 tips for better english": be more or less specific. ;-))

I hope this helps.

bakunin
 

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BOOTCDBACKUP(1) 						   bootcd utils 						   BOOTCDBACKUP(1)

NAME
bootcdbackup - create a bootable offline backup of a unix system SYNOPSIS
bootcdbackup [-i] [-v] [-s] [-c <config directory>] [-url <url] [-nomount] [-2diskconf <file>] <dev> <name> <builddir> DESCRIPTION
bootcdbackup creates a offline backup from a installed system. You need a running bootcd to boot the system with. This CD/DVD is booted on the system and bootcdbackup creates a bootable CD/DVD with the bootcd kernel and the backup disk as tar-file. To restore or clone the system, boot the CD/DVD image and install it with bootcd2disk -c <name> on the system. bootcdbackup can try to discover the disk partition by searching for fstab on the given partition. A other way to backup the partition ta- ble is the program bootcdmk2diskconf which creates a configuration file on a running system. OPTIONS
-i The bootcdbackup runs in interactive mode and you can run each function manually. This option is useful for debugging. -v The option "-v" (verbose) adds messages on running. -s This option can be used to disable interactive questions and to try to ignore errors. -c <config directory> The configuration directory which includes the file "bootcdbackup.conf", default is "/etc/bootcd". -url <url> If bootcdbackup is slow on your system (because of a slow CD/DVD drive or the HP ILO virtual CD interface), you can use an image server to get the image from. bootcdbackup use the SWAP partition of your upcoming system as temporary space and copy the image from the configured image server to this partition and use it as image. The image server url is configured with this option. -nomount The target disk should not be mounted and no search for fstab is done. --cpio Normally as backup tool star will be used if selinux files have to be backed up and cpio will be used if not. With this option the usage of cpio can be forced. --star Normally as backup tool star will be used if selinux files have to be backed up and cpio will be used if not. With this option the usage of star can be forced. -2diskconf <file> The parameter configures a bootcd2disk.conf for the restore of the system done by bootcd2disk. The configuration file can be created with the command bootcdmk2diskconf. <dev> Configures the device where bootcdbackup finds the file "fstab" and discover the configuration for the restore. <name> The name of the backup (no blanks!) is used on the creation time and to restore the backup with bootcd2disk -c <name>. <builddir> Builddir is an directory on the backup system where bootcdbackup build the backup CD/DVD. Space for the CD/DVD image, for compression and the data is needed! All other configuration has to be done in the config files. FILES
/etc/bootcd/bootcdbackup.conf Configuration for bootcdbackup. SEE ALSO
Documentation in bootcdbackup.conf bootcdbackup.conf(5), bootcd(1), bootcdflopcp(1), bootcdwrite(1) AUTHOR
This manual page was written by Bernd Schumacher <bernd.schumacher@hp.com> and Carsten Dinkelmann <Carsten.Dinkelmann@foobar-cpa.de> for the Debian GNU/Linux system (but may be used by others). bootcdbackup 2007-07-05 BOOTCDBACKUP(1)
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