Date: Fri, 22 Dec 2000 09:43:35 -0800 (PST) From: Luigi Rizzo <rizzo@aciri.org> To: white@extra.dp.ua (Alexander Prohorenko) Cc: rizzo@aciri.org, questions@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: fd1720 Message-ID: <200012221743.eBMHhZ777690@iguana.aciri.org> In-Reply-To: <20001222194029.C11268@extra.dp.ua> from Alexander Prohorenko at "Dec 22, 2000 7:40:29 pm"
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> On Fri, Dec 22, 2000 at 08:52:52AM -0800, Luigi Rizzo wrote: > > > Did anybody suceed with fd1720 flopies ? I couldn't write any single > > > 1720K image there. > > you must fdformat /dev/fd0.1720 (check syntax) first, otherwise > > the write fails when it hits the first sector (sec.19 track 0) which > > is supposed to be there but is not > > Note that almost surely you won't be able to boot from that disk. > > Luigi. > > Thank you, your advise was very helpfull. However, I supposed to boot > from it, but didn't get anyting except the FreeBSD BOOT loader. That's > bad. I miss about 30KB on a usual fd1440 diskette to run my PicoBSD > build on, that's why I'm digging into this format. try the "1480" format (you need the changes i recently committed to RELENG_4 should also help, as you save some another 70KB for the loader). > Can you suggest me something in this case? Looks like FreeBSD BOOT > loader doesn't know anything about disk partitioning for such > "stressed" formats. it is not the FreeBSD loader, it is the bios that only knows the 18x80 geometry (the same would be for the 18x82 geometry used by the 1480 format, but in that case apparently the bios does not check the track number). cheers luigi ----------------------------------+----------------------------------------- Luigi RIZZO, luigi@iet.unipi.it . ACIRI/ICSI (on leave from Univ. di Pisa) http://www.iet.unipi.it/~luigi/ . 1947 Center St, Berkeley CA 94704 Phone: (510) 666 2927 ----------------------------------+----------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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