Date: Tue, 29 Jul 2003 23:29:46 -0700 From: "Richard Johannesson" <rtjohan@syspres.com> To: "'Greg 'groggy' Lehey'" <grog@FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: RE: Vinum on Root Message-ID: <007201c35663$f929e7d0$3d01a8c0@rjc800> In-Reply-To: <20030730023420.GJ45069@wantadilla.lemis.com>
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I went back to the original root install method as per the book, and I =
got
vinum working.
Now, needed to change the size of the var volume, since during install I
followed the book example and had var take up the rest of the disk, in =
my
case all 187Gigs of it :). Was under the impression that it would be =
easy to
resize or at least remove and create a new smaller var once the base is
working.
So, backed up the /var directory. Started the vinum prompt and used rm =
to
remove the var subdisk, then remove the var plex and finally was able to
remove the var volume. Now ran create vinum_var.conf - in this case the =
file
was simply:
volume var
plex org concat
sd len 1g drive rootdev
So, did not use the offset, since vinum is now working and should know =
where
the next 1g should come from. Is this a bad assumption?
Well, the vinum create worked fine. Then copied the backed up /var =
contents
to the new vinum volume. Did a reboot, and reboot failed. System =
requesting
to run fsck. So, in single user mode did this and got the following =
error:
"** /dev/vinum/var (NO WRITE)
CANNOT READ BLK: 381244736
CONTINUE? Yes
THE FOLLOWING DISK SECTORS COULD NOT BE READ: 381244736, 381244737,
381244738, 381244739,
/dev/vinum/var: CANNOT FIGURE OUT FILE SYSTEM PARTITION
So, what should I have done and is there a way to back out of this?
By the way, it a great book, I'm just a little thick when it comes to =
vinum
& new unix. So, know I'm trying to do a lot right out of the gate - so
really appreciate all the help I've been getting from everybody!
Thanks again,
Richard
> >>> I. 1. setup unix partitions for swap, /, /usr, and /var
> >>> 2. install FreeBSD5.1
> >>> 3. go through the bsdlabel -e
> >>> 3.1 modify the swap with the 281 offset
> >>> 3.2 add vinum partition h: with the same size as c:, but with=20
> >>> a 16 offset
> >>> 4. create a vinum config file
> >>> --> 4.1 map each sub-disk to the exact size and offset as the
> >>> unix partitions
> >>> II.1. setup unix partitions for swap and /
> >>> 2. install FreeBSD5.1
> >>> 3. go through the bsdlabel -e
> >>> 3.1 modify the swap with the 281 offset
> >>> 3.2 add vinum partition h: with the same size as c:, but with =
>
>>> a 16 offset
> >>> 4. create a vinum config file
> >>> --> 4.1 create sub-disks using simply the size you want with
no
> >>> offset
> > So, if I use Method I, as you specified in the book, can I then move
> those
> > particular partitions (/, /usr, /var) around without worrying about =
the
> > original unix partition layout (offsets etc)? So, the original /, =
/usr,
> /var
> > sizes and offsets won't limit the location of the /dev/vinum/root,
> > /dev/vinum/usr, /dev/vinum/var?
>=20
> They will for root, because you boot from the partition, not the
> volume. Also, you should understand that moving partitions means
> moving data.
>=20
> > For the mirroring case, should the swap partitions be mirrored too?
>=20
> That depends on whether you want to still have a swap partition if a
> drive fails :-)
>=20
> Greg
> --
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