Date: Mon, 7 Jul 2003 16:47:06 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Mark <admin@asarian-host.net> Cc: freebsd-questions@freebsd.org Subject: Re: Adding new hard disk Message-ID: <20030707154706.GB93279@happy-idiot-talk.infracaninophile.co.uk> In-Reply-To: <200307071457.H67EVR5K014987@asarian-host.net> References: <200307071457.H67EVR5K014987@asarian-host.net>
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On Mon, Jul 07, 2003 at 02:57:28PM +0000, Mark wrote:
> Ok, I bought a new 80G hard disk, for backups. I added it on the second I=
DE.
> But now, when I ran FDISK and the Label program (booted from CD), it will
> not allow me to just add /backup as mount point, and says it wants a root=
+
> swap partition too. :( I did "W" when writing out the info, but still,
> /etc/fstab is unchanged.
>=20
> All I want is to add the new hard disk as mount point /backup. Please, te=
ll
> me how to do this.
When you say "booted from CD" I take it you're using sysinstall(8).
That makes certain assumptions like "you're going to install a FreeBSD
system on this disk".
Instead of working through sysinstall, you can use the fdisk(8) and
disklabel(8) tools from the command line. Assuming your new drive is
ad4 and you want to use it all for FreeBSD, but that you don't want it
to be bootable:
# fdisk -I ad4
# disklabel -w ad4s1 auto
That will give you a default partition layout. Now you need to re-run
disklabel in partition editing mode. Run
# disklabel -e ad4s1
and create one big slice 'a' that covers the whole of the disk, by
editing the list of partitions at the end of the disklabel. Copy the
numbers from the 'c' slice. You should end up with something like:
# /dev/ad4s1c:
type: ATA
disk: ad4s1
label:=20
flags:
bytes/sector: 512
sectors/track: nn
tracks/cylinder: nnn
sectors/cylinder: nnnnn
cylinders: nnnn
sectors/unit: sssssssss
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0=20
=20
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: sssssssss 0 4.2BSD 1024 8192 16 # (Cyl. 0 - =
nnnn*)
c: sssssssss 0 unused 0 0 # (Cyl. 0 - =
nnnn*)
(where you need to replace sssssssss with the number of sectors/unit
that's correct for your disk -- it should appear automatically in the
entry for slice c:)
Now, create a filesystem on your new slice: =20
# newfs -U /dev/ad4s1a
Edit /etc/fstab to add a line for the mount point data for the new
partition:
/dev/ad4s1a /backups ufs rw 2 2
and finally mount the new partition:
# mount /backups
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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