Date: Wed, 20 Feb 2002 11:40:46 -0600 (CST) From: burningclown@westhost43.westhost.net To: Lorin Lund <fbsd@wbs-inc.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: partitions, disklabel, etc. Message-ID: <Pine.LNX.4.44.0202201136040.20294-100000@westhost43.westhost.net> In-Reply-To: <20020220173104.9D60F2100F@ns1.infowest.com>
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Ah -- well as luck (or my life in general, which is another story) would have it, I cvsup'd & rebuilt, etc over the w/e only to run into one of those "disk full" mystery situations (15G just suddenly full ...!). So I torched the install and am starting over again ... I would've preferred to solve all the mysteries but this was one of those times when they just REPLICATED -- spontaneously, it seemed, tho I'm sure that was not the case. I guess I'm glad I had the luxury to, erm, start over. I guess. Thanks again, Glenn . > To run the program you would have to have a DOS boot floppy. > > 2/19/2002 11:01:00 AM, burningclown@westhost43.westhost.net wrote: > > > > >I appreciate it - but I'd need DOS, right? I split this little guy into > >Linux and FreeBSD and got rid of anything MS, I'm afraid. > > > >If I see any degradation of either filesystem, I will just start from > >scratch. This laptop is mainly a learning tool anyway (so I don't have to > >stop learning shell scripting if I have to leave town) and has no really > >critical data on it. > > > >Which ... is good. > > > >g > > > > On Tue, 19 Feb 2002, Lorin Lund wrote: > > > >> I've got a little program, runs under DOS, uses BIOS disk IO that allows > >> some mucking around with the BIOS partition table. If it would be > >> useful I could send it to you. > >> > >> Some of it's capabilities are: > >> 1) hand-editing the type field, the start cyl field, the end cyl field, > >> 2) swap slots in the partition table, > >> > >> It's built with djgpp & rhide. > >> > >> Let me know if you think it would help. > >> > >> > >> 2/18/2002 7:09:33 PM, Glenn Becker <chexmix@burningclown.com> wrote: > >> > >> >Hi, > >> > > >> >I've got a dual boot Debian GNU/Linux and FreeBSD 4.5 installation on > >> >an older Toshiba laptop (Satellite Pro 470CDT). Lately I've been > >> >concerned about some messages upon bootup (relevant part of dmesg > >> >output reproduced below) where the Linux hunks of the hard drive are > >> >picked out as being invalid. > >> > > >> >Honestly, I'm not sure why they are showing up there at all. But I > >> >think the problem(s) may originate with my stupid deletion of my > >> >Linux swap partition and my subsequent replacement of that same > >> >partition -- I recall reading in a FreeBSD + Linux Mini-HOWTO that > >> >a) one has to put FreeBSD =after= Linux on an HD and b) it's best > >> >not to muck with the Linux partitions after the dual-OS system is > >> >set up. > >> > > >> >I've had no problems (yet) with either system, but have been trying > >> >to research it to see if I can fix it WITHOUT reinstalling both OSs > >> >from scratch (I'd like to avoid this and the wear on the lappy's CD > >> >drive if possible). Some other weird stuff has popped up. > >> > > >> >If I run disklabel -r command on /dev/ad0, I get this: > >> > > >> >disklabel: bad pack magic number (label is damaged, or pack is > >> >unlabeled) > >> > > >> >Without -r, I get something completely different, which I reproduce > >> >at the end of this message. > >> > > >> >The output of fdisk (see below) also seems completely screwed up - > >> >it shows all three partitions on the drive as beginning and ending > >> >at the same CHS spot: cyl 1023/ head 254/ sector 63. This seems > >> >like a cylinder 1024 thang? Mebbe? > >> > > >> >Soooo, I'm wondering: 1) should I create a disklabel for /dev/ad0, > >> >or will this totally bork all my Linux stuff? 2) can I simply > >> >-delete- the device files /dev/ad0s1* and /dev/ad0s2*, since I'm > >> >not using them for anything in FreeBSD? Or not? > >> > > >> >In short, how do I fix this thing? Or do I? > >> > > >> >Thanks for any enlightenment and apologies for the length. > >> > > >> >Glenn Becker > >> > > >> > > >> > > >> > > >> > > >> >%%%%%% RELEVANT lines from dmesg %%%%%%%%%%% > >> > > >> >Mounting root from ufs:/dev/ad0s3a > >> >ad0s1: raw partition size != slice size > >> >ad0s1: start 63, end 27342629, size 27342567 > >> >ad0s1c: start 63, end 30716279, size 30716217 > >> >ad0s1: truncating raw partition > >> >ad0s1: rejecting partition in BSD label: it isn't entirely within the slice > >> >ad0s1: start 63, end 27342629, size 27342567 > >> >ad0s1f: start 414367, end 30716279, size 30301913 > >> >ad0s2: raw partition size != slice size > >> >ad0s2: start 27342630, end 27599669, size 257040 > >> >ad0s2c: start 27342630, end 58605119, size 31262490 > >> >ad0s2: truncating raw partition > >> >ad0s2: rejecting partition in BSD label: it isn't entirely within the slice > >> >ad0s2: start 27342630, end 27599669, size 257040 > >> >ad0s2b: start 27445030, end 27715973, size 270944 > >> >ad0s2: rejecting partition in BSD label: it isn't entirely within the slice > >> >ad0s2e: start 27715974, end 27756933, size 40960 > >> >ad0s2: rejecting partition in BSD label: it isn't entirely within the slice > >> >ad0s2f: start 27756934, end 58605119, size 30848186 > >> > > >> > > >> >%%%%%%%%%%OUTPUT of disklabel /dev/ad0 %%%%%%%%%%% > >> > > >> ># /dev/ad0: > >> >type: unknown > >> >disk: amnesiac > >> >label: fictitious > >> >flags: > >> >bytes/sector: 512 > >> >sectors/track: 63 > >> >tracks/cylinder: 255 > >> >sectors/cylinder: 16065 > >> >cylinders: 3648 > >> >sectors/unit: 58605120 > >> >rpm: 3600 > >> >interleave: 1 > >> >trackskew: 0 > >> >cylinderskew: 0 > >> >headswitch: 0 # milliseconds > >> >track-to-track seek: 0 # milliseconds > >> >drivedata: 0 > >> > > >> >8 partitions: > >> ># size offset fstype [fsize bsize bps/cpg] > >> > c: 58605120 0 unused 0 0 # (Cyl. 0 - 3647) > >> > > >> > > >> >%%%%OUTPUT of fdisk /dev/ad0 %%%%%%%%%%% > >> > > >> >******* Working on device /dev/ad0 ******* > >> >parameters extracted from in-core disklabel are: > >> >cylinders=3648 heads=255 sectors/track=63 (16065 blks/cyl) > >> > > >> >Figures below won't work with BIOS for partitions not in cyl 1 > >> >parameters to be used for BIOS calculations are: > >> >cylinders=3648 heads=255 sectors/track=63 (16065 blks/cyl) > >> > > >> >Media sector size is 512 > >> >Warning: BIOS sector numbering starts with sector 1 > >> >Information from DOS bootblock is: > >> >The data for partition 1 is: > >> >sysid 131,(Linux filesystem) > >> > start 63, size 27342567 (13350 Meg), flag 0 > >> > beg: cyl 0/ head 1/ sector 1; > >> > end: cyl 1023/ head 254/ sector 63 > >> >The data for partition 2 is: > >> >sysid 130,(Linux swap or Solaris x86) > >> > start 27342630, size 257040 (125 Meg), flag 0 > >> > beg: cyl 1023/ head 255/ sector 63; > >> > end: cyl 1023/ head 254/ sector 63 > >> >The data for partition 3 is: > >> >sysid 165,(FreeBSD/NetBSD/386BSD) > >> > start 27599670, size 31005450 (15139 Meg), flag 80 (active) > >> > beg: cyl 1023/ head 255/ sector 63; > >> > end: cyl 1023/ head 254/ sector 63 > >> >The data for partition 4 is: > >> ><UNUSED> > >> > > >> > > >> >To Unsubscribe: send mail to majordomo@FreeBSD.org > >> >with "unsubscribe freebsd-questions" in the body of the message > >> > > >> > > >> > >> > >> > > > >-- > >+----------------+ > >http://www.burningclown.com > >"Everyone's Portal to Nothing At All" > >+----------------+ > > > > > > > > > -- +----------------+ http://www.burningclown.com "Everyone's Portal to Nothing At All" +----------------+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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