Ivor O’Connor

October 28, 2008

How to copy a filesystem

Filed under: Uncategorized — ioconnor @ 4:51 pm

I need to remember this Linux Journal howto. I wonder how I could prove to myself it is better than rsync. (I should mark a file’s extended attribute as “system” and see if rsync does indeed fail to copy it and that this method below does.)

1) Boot both PCs with any Linux live CD (for example, Knoppix), and make sure they can access each other via the network.

2) On the source machine, mount the partition containing the filesystem to be copied, and start the transfer using netcat and tar:

cd /mnt/sda1
tar -czpsf - . | pv -b | nc -l 3333

3) On the destination machine, mount the partition to receive the filesystem, and start the process:

cd /mnt/sda1
nc 192.168.10.101 3333 | pv -b | tar -xzpsf -
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