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#1 (**permalink**) 01-04-2008, 06:58 PM

I installed AIX 4.3.3 on my system and want to move /home to a
separate disk. I umount'ed /home, deleted hd1 from the rootvg,
created a new volume group (homevg) and created a logical volume hd1
in the homevg. When I looked at the "volumes" display it showed the
mount point as /home. Good, but when I reboot the system /home was
not mounted. I looked around in /etc and /dev and found that logical
volumes have entries in /dev. I then tried to mount /home from the
command line (mount /dev/hd1 /home) and got an error message. I left
the paper with the message at home but it was something like
"…invalid parameter passed to system routine…". I'm starting to
think that removing hd1 from rootvg may not have been a good thing to
do. (I did not expect logical volumes to have entries in /dev.) Is
this the problem? Should I remove hd1 from homevg and create a new
hd1 in rootvg and then create a new logical volume in homevg with a
different name, or am I missing something else?

Thanks

#2 (**permalink**) 01-04-2008, 06:58 PM

Robert DiRosario wrote:
> I installed AIX 4.3.3 on my system and want to move /home to a
> separate disk.

We do this all the time. Should work.

> I umount'ed /home, deleted hd1 from the rootvg,
> created a new volume group (homevg) and created a logical volume hd1
> in the homevg.

This might be a problem...

> I'm starting to
> think that removing hd1 from rootvg may not have been a good thing to
> do. (I did not expect logical volumes to have entries in /dev.) Is
> this the problem? Should I remove hd1 from homevg and create a new
> hd1 in rootvg and then create a new logical volume in homevg with a
> different name, or am I missing something else?

If you went through smit to remove the original /home filesystem and
logical volume, everything should have gotten cleaned up. It's
possible that, at system boot, there was still an attempt to
mount hd1, but since it wasn't in the rootvg the attempt failed.
Just free-thinking here. You may want to use an alternative
LV naming scheme on your other VGs, and make sure that there
are appropriate entries in /etc/filesystems for all of your
custom FSs.

--
Gary R. Hook / AIX PartnerWorld for Developers / These opinions are MINE
__________________________________________________ ______________________

#3 (**permalink**) 01-04-2008, 07:00 PM

Hi,

Robert DiRosario schrieb:
>
> I installed AIX 4.3.3 on my system and want to move /home to a
> separate disk.

Good idea generally.

> I umount'ed /home, deleted hd1 from the rootvg,

Not sure if this is even needed?
Due to my limited experience with AIX
mounting a new /home on an other VG just makes the existing /home on HD1
unvisible?
So its possible to keep a small /home in the original disk layout
to limit error messages in case your homevg can't be found
due to disk failure.
....

Gereon Wenzel

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Moving /home out of rootvg