Date: Tue, 30 Dec 2003 21:51:35 -0800 From: Micheas Herman <micheas@freep.org> To: Greg 'groggy' Lehey <grog@FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: Re: Booting from vinum RAID 1: How should I edit my disk label? Message-ID: <20031231055128.GA10523@sol> In-Reply-To: <20031231053400.GO10758@wantadilla.lemis.com> References: <1072672057.1411.22.camel@tux> <20031229062145.GB10758@wantadilla.lemis.com> <1072681819.1411.65.camel@tux> <1072684712.1411.97.camel@tux> <1072672057.1411.22.camel@tux> <20031229062145.GB10758@wantadilla.lemis.com> <1072681819.1411.65.camel@tux> <20031231053400.GO10758@wantadilla.lemis.com>
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On 31 Dec 03, 4:04PM, Greg 'groggy' Lehey wrote: > On Sunday, 28 December 2003 at 23:10:20 -0800, Micheas Herman wrote: > > On Sun, 2003-12-28 at 22:21, Greg 'groggy' Lehey wrote: > >> On Sunday, 28 December 2003 at 20:27:37 -0800, Micheas Herman wrote: > >>> Hi, > >>> > >>> I am following "13.9.2 Making a Vinum-based Root Volume Accessible to > >>> the Bootstrap" from the FreeBSD Handbook. > >>> > >>> (/dev/vinum/root is mounted at /newroot ) > >>> > >>> ... > >>> Subdisk root.p1.s0: > >>> Size: 146664960 bytes (139 MB) > >>> State: up > >>> Plex root.p1 at offset 0 (0 B) > >>> Drive vinumdrive3 (/dev/ad7s1d) at offset 135680 (132 kB) > >> ^^^^^^^^^^^^ > >> > >>> # disklabel -e /dev/ad7s1 > >>> > >>> gives; > >>> > >>> # /dev/ad7s1: > >>> 8 partitions: > >>> # size offset fstype [fsize bsize bps/cpg] > >>> a: 9216000 14966784 4.2BSD 2048 16384 28552 > >>> b: 20942848 24182784 4.2BSD 2048 16384 28552 > >>> c: 45126522 0 unused 0 0 # "raw" part, don't edit > >>> d: 286720 0 4.2BSD 0 0 0 > >> > >> That's wrong. It should be of type Vinum. It also looks very short. > > > > It's 138M of a 120G hard drive, which is probably about 60M > > more than I'll use. (assuming that I don't put more in root than > > I did with FreeBSD 4.x) > > That's a bad assumption, but 138 MB would probably still be enough for > a root file system. But do you want to put only the root file system > under Vinum? What's on the rest of this disk? > Slices that are currenetly working fine under vinum (guess I violated the golden rule in ignroance) > >>> e: 4194304 286720 4.2BSD 2048 16384 28552 > >>> f: 4194304 4481024 4.2BSD 2048 16384 28552 > >>> g: 4194304 8675328 4.2BSD 2048 16384 28552 > >>> h: 2097152 12869632 4.2BSD 2048 16384 28552 > >>> > >>> I am not sure what my disklabel -e /dev/ad7s1 should look like. > >> > >> That depends on what you're trying to do. I suspect that the entire > >> disk label is bogus. > > > > all my vinum volumes are working fine with two exceptions, 1 the > > swap volume (known problem, at some point in the future I will > > cvsup, make world, etc and it will be fixed, let me know if > > there is any data you would like from this system) and I would > > like to boot from the root volume. which is currently d: > > > > Can I just: > > 1. s/4.2BSD/vinum/ > > Yes. > > > 2. transpose a: and d: > > Well, you can do it, but I don't understand what you're trying to do. > Your "root" partition (a) is much larger than your Vinum drive, and > it's located in a completely different place. > > > (if I do this will I have to rm and recreate the > > volumes? Not a problem I just can't figure it out) > > Again, it depends on what you're trying to do. > > > 3. Do I then just reboot? It would seem that I need to > > install a boot loader some which way. With > > /stand/sysinstall fdisk? or something else? > > You need overlapping partitions, as described in: > > >> Take a look at http://www.vinumvm.org/cfbsd/vinum.pdf and see if that > >> makes any more sense. It's basically trying to tell you the same > >> thing. > > On Sunday, 28 December 2003 at 23:58:33 -0800, Micheas Herman wrote: > > > > Could this be correct for ad6s1 and ad7s1? they are about 20G > > each > > > > a: 9216000 14966784 vinum 2048 16384 28552 > > b: 20942848 24182784 vinum 2048 16384 28552 > > c: 45126522 0 unused 0 0 # "raw" part, don't edit > > d: 286439 281 vinum 0 0 0 > > ^^^^^^ ^^^ <-changes > > e: 4194304 286720 vinum 2048 16384 28552 > > f: 4194304 4481024 vinum 2048 16384 28552 > > g: 4194304 8675328 vinum 2048 16384 28552 > > h: 2097152 12869632 vinum 2048 16384 28552 > > No. That's definitely wrong. From the URL above: > > Things you shouldn't do with Vinum > __________________________________ > > o Don't put more than one drive on a physical disk. Each drive contains two > copies of the Vinum configuration, and both updating the configuration and > starting Vinum slow down as a result. If you want more than one file system > to occupy space on a physical drive, create subdisks, not drives. > > > # df -h > > Filesystem Size Used Avail Capacity Mounted on > > /dev/ad2s1a 135M 54M 70M 43% / > > devfs 1.0K 1.0K 0B 100% /dev > > /dev/vinum/home 90G 12K 83G 0% /home > > /dev/vinum/tmp 4.3G 3.4M 3.9G 0% /tmp > > /dev/vinum/usr 1.9G 954M 866M 52% /usr > > /dev/vinum/usrports 1.9G 516M 1.3G 28% /usr/ports > > /dev/vinum/usrlocal 1.9G 71M 1.7G 4% /usr/local > > /dev/vinum/var 9.7G 1.0M 8.9G 0% /var > > /dev/vinum/root 135M 54M 70M 44% /newroot > > You seem to have most things under Vinum as well, though it's not > clear if they're related to the drive you've shown above. Remember > the golden rule "only one drive per spindle". > > > The only downside that i see from reading "The Vinum Volume > > Manager" is that startup and shutdown will take longer, but I > > don't see that being much more than a once a month activity at > > the most. 1-200 days will be a much more frequent time between > > booting for this system. > > And what's the corresponding upside? My dump scripts will still work without modification? I Guess my problem is that I don't see how to declare an entire disk a vinum file system and then make subdisks. I may be missing this in the docs, but i really don't get it. > > 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. Thanks for your help. Micheas -- Micheas Herman email: micheas@freep.org Free Print Shop web: http://freeprintshop.org phone: (415)648-3222 fax: (415)648-3222
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