Difference between revisions of "Cloning a computer"
imported>ThorstenStaerk (Clone any computer locally) |
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= Over the network = | = Over the network = | ||
| − | == | + | == file-by-file copy == |
To store a backup of one computer on the other via [[network]], use the command: | To store a backup of one computer on the other via [[network]], use the command: | ||
cd / | cd / | ||
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* /boot/grub/menu.lst to contain generic device names | * /boot/grub/menu.lst to contain generic device names | ||
| − | == | + | == byte-by-byte copy == |
This is how you can clone the harddisk of any computer, even if it is an encrypted Windows 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 | Boot the computer from Knoppix, [[open a console]], enter | ||
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= local = | = local = | ||
| − | == | + | == file-by-file copy == |
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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[[mkdir]] /mnt/proc /mnt/sys /mnt/mnt | [[mkdir]] /mnt/proc /mnt/sys /mnt/mnt | ||
| − | == | + | == byte-by-byte copy == |
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. | 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 | * boot the computer from Knoppix | ||
Revision as of 14:50, 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
file-by-file copy
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
byte-by-byte copy
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
file-by-file copy
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
byte-by-byte copy
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.
