When you try the install, choose (S)hell. At the prompt try dd if=/dev/zero of=/dev/rwd0c bs=1m count=1
You may have some old HFS partition table fragments lying around. .... Ken On Sat, Sep 01, 2012 at 01:51:43PM +0930, David Walker wrote: > Hi. > > I got an iBook G4 and I'm having issues. > > I'm going for an MBR scheme using the whole disk but I'm not sure > fdisk is working according to the installation instructions but I > might have a borked disk ... > Here's what I see: > > Available disks are: wd0. > Which one is the root disk? (or 'done') [wd0] Enter > Use DUIDs rather than device names in fstab? [yes] n > Use HFS or MBR partition table? [HFS] MBR > > Here I get "read failed" repeated 8 times, "3 not HFS", a print out of > the HFS style partitions. > The "read failed" are obviously cause for concern but I don't know if > that's from trying to read some previous Apple stuff, something > in-correct that's correctable by proceeding with a write, something > that's stopping the rest of the install or whatever. > > Are you *sure* you want an MBR partition table on wd0? [no] y > Disk: wd0 geometry: 116280/16/63 [117210240 Sectors] > Offset: 0 Signature: 0xAA55 > Starting Ending LBA Info: > #: id C H S - C H S [ start: size ] > > ------------------------------------------------------------------------------- > *0: 06 0 0 2 - 2 0 33 [ 1: 2048 ] DOS > 32MB > 1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused > 2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused > 3: A6 4 1 2 - 116279 15 63 [ 4096: 117206144 ] OpenBSD > Use (W)hole disk, use the (O)penBSD area, or (E)dit the MBR? [OpenBSD] w > > I guess the reason for the DOS and OpenBSD partitions is that I've > been through this a few times. > I've tried using the whole disk or the OpenBSD area with as far as I > can see the same result except using the whole disk re-creates the DOS > partition. > > Creating a 1MB DOS partition and an OpenBSD partition for the rest > of wd0...done. > /dev/rwd0i: 116720008 sectors in 15490001 FAT32 clusters (4096 > bytes/cluster) > bps=512 spc=8 res=32 nft=2 mid=0xf8 spt=63 hds=16 hid=262208 > bsec=116948016 bspf=113985 rdcl=2 infs=1 bkbs=2 > The auto-allocated layout for wd0 is: > # size offset fstype [fsize bsize cpg] > a: 128.0M 64 4.2BSD 2048 16384 1 # / > c: 57231.6M 0 unused > i: 57103.5M 262208 HFS > Use (A)uto layout, (E)dit auto layout, or create (C)ustom layout? [a] c > > Here I've tried A and C but I only seem to be able to use 128MB of disk space. > For instance using A ... > /dev/rwd0a: 128.0MB in 262144 sectors of 512 bytes > 4 cylinder groups of 32.00MB, 2048 blocks, 4096 inodes each > /dev/wd0a on /mnt type ffs (rw, asynchronous, local) > > I've tried deleting i and adding b and so on but the a is using the > entire 128MB ... > If I delete a which as far as I can tell is not what I should be > doing, I can add 128MB at most ... > > There's not enough room to install bsd and etc so I've tried > installing bsd.rd only but when I try ... > boot hd:,ofwboot /bsd.rd > ... at the OF prompt I get: > Warning: sector size mismatch! can't OPEN: hd:,ofwboot > Cant open device or file > > Any advice appreciated. > > Best wishes.
