Date: Sun, 16 Jun 2002 11:39:06 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Corey Snow <corey@snowpoint.com> Cc: freebsd-questions@freebsd.org Subject: Re: Adding hard drive, moving /usr/src Message-ID: <20020616020906.GJ65995@wantadilla.lemis.com> In-Reply-To: <3D0B8EE1.6924.A196528@localhost> References: <3D0B8EE1.6924.A196528@localhost>
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On Saturday, 15 June 2002 at 19:00:49 -0700, Corey Snow wrote:
> Here's the situation. I have a machine that has a 540 MB hard drive.
> I'm running out of room on the /usr slice (partition?). It's fine as
> long as I don't try and download any of the source, but in order to
> make this box a headless one (cf my previous postings) I need to
> recompile the loader, and maybe even have to do a "make world" (I'm
> still researching that part. I hope not, because it would probably
> take days on this 486).
>
> Problem is I can't download the all the sources I need because the
> /usr partition is running out of space. Lucky me, I've got some extra
> hard drives around. I can toss a second drive in, around 800 MB or
> so, and add it to the system. Then I can store my /usr/src files
> there.
>
> So here's the questions:
>
> 1) How do you add a drive to a FreeBSD machine?
There are two ways: with /stand/sysinstall or with fdisk and
disklabel. The former is much easier. This is described in detail in
"The Complete FreeBSD", but basically:
1. Start sysinstall. Go to the index, then select "Partition" to
find the drive and set up a partition table. Use the W command to
write the partition table. You don't need a boot selector, since
you won't be booting from this drive.
2. Exit the partition menu, enter the label menu, and set up your
file systems. Use the W command, which will newfs them, so it'll
take a while to come back.
3. I think you still need to edit /etc/fstab. Check, anyway.
> Does the kernel have to be recompiled?
No.
> 2) When I have the new drive in and set up, how can I relocate my
> /usr/src files to the new larger slice on the second drive? My
> thought was this: mv the files currently in /usr/src to a temp
> directory, like /usr/srctemp. Then edit fstab to mount the new slice
> to /usr/src and mv the files from srctemp into the new src
> directory. Is this the right approach?
No. umount the new file system, and remount it on /mnt. Then move
the files across to /mnt. I use tar, but others use dump and
restore. With tar it would be something like:
# umount /usr/src (if necessary)
# mount /dev/ad2s1h /mnt
# cd /usr/src
# tar cf - . | (cd /mnt; tar xvf -)
After this is done, check that the files made it, then:
# rm -rf /usr/src/*
# umount /mnt
# mount /usr/src (assuming that /etc/fstab has been updated)
It's important to remove the files under /usr/src before mounting the
file system in the correct place; otherwise you won't be able to
access them at all.
Greg
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