Subject: Re: Tranferring a System
To: None <>
From: Christos Zoulas <>
List: port-alpha
Date: 12/05/2001 04:27:38
In article <f05100331b8332fd44509@[]>,
Ray Phillips <> wrote:
>Dear NetBSD/alpha:
>Is it possible to create a system disk by copying the contents of a 
>disk that has NetBSD installed on it to another one?
>I thought the following scheme might work, but I'm not sure how cp 
>will treat device files and sockets (and possibly other files I don't 
>Assuming a working machine has one disk with / and /usr partitions, 
>create partitions on a second one, at least as large as those on the 
>first, and then (pardon the pseudo-code in the third line)...
># mount /dev/sd1a /mnt
># cd /
># cp -Rp ***list of files and directories in `/' except for usr*** /mnt
># umount /mnt
># mount /dev/sd1d /mnt
># cd /usr
># cp -Rp * /mnt
># umount /mnt
># /usr/mdec/installboot -v /dev/rsd1c /usr/mdec/bootxx_ffs
>Perhaps there's a recognised standard way of doing this that I don't 
>know about?  Can dd do it, even if the size of the partions on the 
>two disks are not the same?
dump and restore or tar is better so that you don't turn symlinks into
file copies, or fill sparse files and you don't have to worry about
skipping fs's.

mount /dev/sd1a /mnt
cd /
tar --one-file-system -czf - . | (cd /mnt && tar -xpzf -)


mount /dev/sd1a /mnt
cd /mnt
dump 0f - /dev/rsd0a | restore -xf -