10-10-2012
Quote:
Originally Posted by
fierfek
I would like to get both but datavg is the one i really need. I have tried using mksysb [...]
An "mksysb" is always an image of the
rootvg only. It is used to create a backup set with all the configuration/customization information of a system in place so that it can be set up again fast in case of a machine failure or to clone a system onto another one. In fact mksysb-format backups include boot blocks so it is possible to directly boot a system from such an image and restore it from it in one pass.
There is the more general command "savevg", which creates a backup for any volume group. "mksysb" is in fact using "savevg", but putting a boot block and other information in front of this image. gts1999 already told you about "savevg".
The destination for either a mksysb- or a savevg-image is classically a tape drive, but can be any device or file. Just make sure you have enough room for it on this device/file.
I hope this helps.
bakunin
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LEARN ABOUT LINUX
grub-setup
GRUB-SETUP(8) System Administration Utilities GRUB-SETUP(8)
NAME
grub-setup - set up a device to boot using GRUB
SYNOPSIS
grub-setup [OPTION...] DEVICE
DESCRIPTION
Set up images to boot from DEVICE.
You should not normally run this program directly. Use grub-install instead.
-a, --allow-floppy
Make the drive also bootable as floppy (default for fdX devices). May break on some BIOSes.
-b, --boot-image=FILE
Use FILE as the boot image [default=boot.img]
-c, --core-image=FILE
Use FILE as the core image [default=core.img]
-d, --directory=DIR
Use GRUB files in the directory DIR [default=/boot/grub]
-f, --force
Install even if problems are detected
-m, --device-map=FILE
Use FILE as the device map [default=/boot/grub/device.map]
-r, --root-device=DEV
Use DEV as the root device [default=guessed]
-s, --skip-fs-probe
Do not probe for filesystems in DEVICE
-v, --verbose
Print verbose messages.
-?, --help
give this help list
--usage
give a short usage message
-V, --version
print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.
DEVICE must be an OS device (e.g. /dev/sda).
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
grub-install(8), grub-mkimage(1), grub-mkrescue(1)
The full documentation for grub-setup is maintained as a Texinfo manual. If the info and grub-setup programs are properly installed at
your site, the command
info grub-setup
should give you access to the complete manual.
grub-setup (GRUB) 1.99-12ubuntu5 October 2011 GRUB-SETUP(8)