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 > -- > When replying to this message, please copy the original recipients. > If you don't, I may ignore the reply or reply to the original = recipients. > For more information, see http://www.lemis.com/questions.html > See complete headers for address and phone numbers
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