Difference between revisions of "Cloning a computer"
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= local = | = local = | ||
| + | |||
| + | == Clone a Linux computer == | ||
Local cloning is e.g. to a USB disk to [[make a USB disk bootable]]. In this case we assume the target disk is ''/dev/sdx2''. To clone your harddisk: | Local cloning is e.g. to a USB disk to [[make a USB disk bootable]]. In this case we assume the target disk is ''/dev/sdx2''. To clone your harddisk: | ||
* make sure there is no DVD, CD, network drive and other things mounted | * make sure there is no DVD, CD, network drive and other things mounted | ||
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tar -cv $(ls | grep -v proc | grep -v sys | grep -v mnt) | ( cd /mnt; tar xv ) | tar -cv $(ls | grep -v proc | grep -v sys | grep -v mnt) | ( cd /mnt; tar xv ) | ||
[[mkdir]] /mnt/proc /mnt/sys /mnt/mnt | [[mkdir]] /mnt/proc /mnt/sys /mnt/mnt | ||
| + | |||
| + | == Clone any computer == | ||
| + | This is how you can clone the harddisk of any computer locally (e.g. to a USB drive), even if it is an encrypted Windows computer. | ||
| + | * boot the computer from Knoppix | ||
| + | * [[open a console]] | ||
| + | * mount the USB disk, e.g. | ||
| + | mount /dev/sdz1 /mnt/usb | ||
| + | * enter | ||
| + | [[dd]] if=/dev/sd''x'' | bzip2 -z | cat >/mnt/usb/backup-sd''x''.bz2 | ||
| + | Be sure to replace /dev/sd''x'' by the harddisk you want to clone. | ||
Revision as of 14:31, 16 May 2013
Cloning a computer means you have one computer and want to copy the complete harddisk to another. This can mean different things and can have different reasons.
Contents
Reasons
- You want to have a stand-in computer in case your "pet computer" breaks. In this case it is enough to copy every file from hard disk A to hard disk B.
- You want to virtualize your computer. In this case you will have to dump every byte from your source (physical) to your target (virtual) computer.
Over the network
Clone a Linux computer
To store a backup of one computer on the other via network, use the command:
cd / tar -cvz $(ls | grep -v proc) | ssh root@192.168.178.3 "cat >slash.tar.gz"
To clone a computer over the network, say:
cd / tar -cv $(ls | grep -v proc) | ssh root@192.168.178.3 "(cd /public/ubunturoot; tar xv )"
Afterwards you may want to change
- IP address, netmask, gateway, name server, time server, hostname
- /etc/fstab to contain generic device names like /dev/sda1 instead of /dev/disk/by-uuid/7e9e1890-312e-43eb-8ebb-82fe03b62732
- /boot/grub/menu.lst to contain generic device names
Clone any computer
This is how you can clone the harddisk of any computer, even if it is an encrypted Windows computer. Boot the computer from Knoppix, open a console, enter
dd if=/dev/sdx | bzip2 -z | ssh root@192.168.0.5 "(cat >backup-sdx.bz2)"
Be sure to replace /dev/sdx by the harddisk you want to clone and 192.168.0.5 by your target computer's IP.
local
Clone a Linux computer
Local cloning is e.g. to a USB disk to make a USB disk bootable. In this case we assume the target disk is /dev/sdx2. To clone your harddisk:
- make sure there is no DVD, CD, network drive and other things mounted
- mount the target harddisk to /mnt:
mount /dev/sdx2 /mnt
- issue the commands
cd / tar -cv $(ls | grep -v proc | grep -v sys | grep -v mnt) | ( cd /mnt; tar xv ) mkdir /mnt/proc /mnt/sys /mnt/mnt
Clone any computer
This is how you can clone the harddisk of any computer locally (e.g. to a USB drive), even if it is an encrypted Windows computer.
- boot the computer from Knoppix
- open a console
- mount the USB disk, e.g.
mount /dev/sdz1 /mnt/usb
- enter
dd if=/dev/sdx | bzip2 -z | cat >/mnt/usb/backup-sdx.bz2
Be sure to replace /dev/sdx by the harddisk you want to clone.
