Move BSD to an NewDisk

How to move FreeBSD to a new hard disk
The original of this article you can find here.

This article will explain how you can move your FreeBSD installation
from one hard disk drive to another. I have done this many times using
the dump/restore utility. Before you begin, be sure you have read this
document carefully. Let's assume that our FreeBSD installation is on a
4 gigabyte drive (ide master ad0) and we would like to move it to a new
20 gig drive. What you need to do is remove the old hard disk, install
the new [20G] drive as an ide master and perform a minimal clean
install of FreeBSD, setting up the partitions exactly how you want
them. Be se sure to set the drive as bootable and boot from it one time
as a test. Next, put your old [4G] drive back in the system as an ide
master and the new [20G] drive in as an ide slave. Boot the system on
your old installation in single user mode.

To boot in single user mode:
Press the [spacebar] at the 10 second countdown.
type:
boot -s
Press [enter] for the default shell.

At the (#) prompt type:
fsck -p
mount -u /
mount -a
swapon -a
adjkerntz -i    #????##

Next, make sure you have the device files made so you can mount the partitions on the slave drive.
Type:
cd /dev
./MAKEDEV ad1s1a
./MAKEDEV ad1s1e
./MAKEDEV ad1s1f

Now make mount points for the new drive's partitions:
Type:
mkdir /backup
mkdir /backup/root
mkdir /backup/usr
mkdir /backup/var


Lastly, I use a shell script to do the following:

1 - create new filesystems (newfs the drive)
2 - mount the partitions
3 - dump the data from my old drive, and restore it to my new one
4 - unmount the new drives partitions
5 - enable softupdates on the new drive (optional)


Here is the script I use:

#!/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

#end

It will probably take several hours to perform the dump/restore, so be
patient. Once the data has been dumped and restored to the new drive,
all you have to do is remove your old drive and put it in a safe place,
set the new drive to a master and reboot. Your system will now boot
your old FreeBSD installation on your new hard disk.

Note: You can download the drivecopy shell script by clicking on the

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