Date: Sun, 1 Dec 2002 20:15:45 GMT From: paul@xciv.org (Paul Civati) To: freebsd-stable@freebsd.org Subject: Re: CF Geometry issues Message-ID: <200212012015.gB1KFjA00919@tuscan.xciv.org> In-Reply-To: <5.2.0.9.0.20021201124119.04f16660@192.168.0.12> References: <5.2.0.9.0.20021201124119.04f16660@192.168.0.12>
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In article <5.2.0.9.0.20021201124119.04f16660@192.168.0.12>,
mike@sentex.net (Mike Tancsa) writes:
> I am trying to format a CF disk
>
> port 2 addr 2: power 100 mA, config 1, eUSB CompactFlash Adapter(0x000a),
> da0: <eUSB Compact Flash > Removable Direct Access SCSI-2 device
>
> I can fdisk and disklabel it no problem, but I can never seem to make it
> bootable.
I have done this, although I'm using my CF card as a direct IDE device
without going through an adapter.
ad1: 125MB <PQI ATA Rev6.0> [1000/16/16] at ata0-slave PIO1
> reading through the archives it seems a lot of people run into this issue,
> but I have not found the solution. People talk of "faking" the geometry,
> but I am not sure other than through trial and error how to find the
> "right" geometry in order to allow me to boot from it. The end goal being
> popping the CF into a Soekris box.
It's a while since I did it, but I made some notes:
# fdisk -BI ad3
# disklabel -w -B ad3s1 auto
# disklabel -e ad3s1
[ duplicate (c:) and adjust letter/fstype ]
# newfs /dev/ad3s1a
fdisk ad1
******* Working on device /dev/ad1 *******
parameters extracted from in-core disklabel are:
cylinders=1000 heads=16 sectors/track=16 (256 blks/cyl)
parameters to be used for BIOS calculations are:
cylinders=1000 heads=16 sectors/track=16 (256 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 165,(FreeBSD/NetBSD/386BSD)
start 16, size 255984 (124 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 999/ head 15/ sector 16
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
-Paul-
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