Date: Thu, 30 Sep 1999 07:12:12 +0930 From: Greg Lehey <grog@lemis.com> To: gkaplan <gkaplan@castle.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: disk partitioning Message-ID: <19990930071212.H85028@freebie.lemis.com> In-Reply-To: <37F224F9.D2891335@castle.net>; from gkaplan on Wed, Sep 29, 1999 at 10:40:58AM -0400 References: <199812270206.DAA19785@qix> <37F0E951.99D97361@castle.net> <37F18382.58B03368@castle.net> <19990929125116.X96948@freebie.lemis.com> <37F224F9.D2891335@castle.net>
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[Format recovered--see http://www.lemis.com/email/email-format.html] Please limit your lines to 75 characters. On Wednesday, 29 September 1999 at 10:40:58 -0400, gkaplan wrote: > > > Greg Lehey wrote: > >> [Format recovered--see http://www.lemis.com/email/email-format.html] >> >> On Tuesday, 28 September 1999 at 23:12:02 -0400, gkaplan wrote: >>> Is it possible to install two different versions of freebsd on the >>> same physical disk? >> >> Yes. >> >>> For example suppose I wanted to run current and stable but not at >>> the same time, would the install object? >> >> Do you mean sysinstall? I don't think I'd use that. >> > > Yes, I was hoping to use sysinstall; but it seem to object to using > two slices. What is/are the alternatives ? I show one below with only one slice. >>> Could I get around this by a temporary change to the partition type >>> while doing a second install? >> >> Possibly. But I think you could just tell it not to use that slice or >> partition. >> >> I run multiple systems on my test machine, all in the same slice: >> >> 8 partitions: >> # size offset fstype [fsize bsize bps/cpg] >> a: 163840 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 307*) / (-CURRENT) >> b: 163840 163840 4.2BSD 1024 8192 16 # (Cyl. 307*- 615*) / (3.3-STABLE) >> c: 4194685 0 unused 0 0 # (Cyl. 0 - 7884*) (whole disk) >> d: 163840 327680 4.2BSD 1024 8192 16 # (Cyl. 615*- 923*) / (3.2-STABLE) >> e: 614400 491520 4.2BSD 1024 8192 16 # (Cyl. 923*- 2078*) /usr (-CURRENT) >> f: 614400 1105920 4.2BSD 1024 8192 16 # (Cyl. 2078*- 3233*) /usr (3.3-STABLE) >> g: 614400 1720320 4.2BSD 1024 8192 16 # (Cyl. 3233*- 4388*) /usr (3.2-STABLE) >> h: 1859965 2334720 4.2BSD 1024 8192 16 # (Cyl. 4388*- 7884*) /home >> >> Note that there's no swap there; that's on a different disk. Also, >> you can use the same swap partition for each system, and in this >> configuration I use the same /home partition for each system. >> > > My present system is wd0 = 4.3G wd1=13.5G with w95b and > PM-BootManager on wd0. My plan was to install on wd1:a working copy > of freebsd, a test copy of freebsd, and a working copy of linux. I > had no plan to use a disk manager and so wanted to keep roots below > the 1024 cylinder boundary. PM-BootManager seem to work well ( > after setting the disk geometry ) I suppose that lilo or booteasy > would work equally well; but I don't want to change my wd0 MBR till > I have more confidence in my knowledge of the systems involved. I > thought to partition wd1 as: <slice - starting at cyl 0> <extended > partition - spanning cyl 1024 > < slice - the remaining physical > disk> > > My question is: is this reasonable, or am I shooting myself in the > foot? That depends on what you want to put on the slices. I can't advise for Linux. Greg -- When replying to this message, please copy the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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