Software

Dump/Restore Data Between Partitions

Here’s a script I created to backup and restore data between partitions on OpenBSD:

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#!/bin/sh
newfs /dev/ad1s1a
newfs /dev/ad1s1e
newfs /dev/ad1s1f

mount /dev/ad1s1a /backup/root
mount /dev/ad1s1e /backup/var
mount /dev/ad1s1f /backup/usr

( dump -0f - / ) | ( cd /backup/root ; restore -rf - )
( dump -0f - /var ) | ( cd /backup/var ; restore -rf - )
( dump -0f - /usr ) | ( cd /backup/usr ; restore -rf - )

umount /backup/root
umount /backup/var
umount /backup/usr

tunefs -n enable /dev/ad1s1a
tunefs -n enable /dev/ad1s1e
tunefs -n enable /dev/ad1s1f