HowTo: Add a new disk to FreeBSD

I needed to add a 120GB IDE drive to my FreeBSD 7.0 install on the old Celeron 266.

Here are the steps:

1. become superuser
2. # mkdir /mnt/data
3. # sysinstall
4. Choose Configure -> Fdisk
5. If there are existing partitions press D to delete them
6. To create a slice press C. To use the entire disk press A
7. To commit changes press W. A warning pops up, choose YES.
8. When asked to install a boot manager choose STANDARD
9. Leave Fdisk by pressing Q
10. Choose Configure -> Label
11. Create a new partition by press C. Choose FS.
12. Type in the mountpoint, e.g. /mnt/data. Take note of the drive device node, e.g. /dev/ad4s1d
13. Commit changes by pressing W
14. Exist the sysinstall.
15. # vi /etc/fstab accordingly, e.g. /dev/sda4s1d /mnt/data ufs rw 2 2 in my case

I essentially used my 120GB drive to be entirely by FreeBSD and mounted under /mnt/data.

Take a look on section 18.3 "Adding disks" of the official FreeBSD Handbook for finner details.