On Sat, Aug 4, 2018, 19:00 Sijmen J. Mulder <i...@sjmulder.nl> wrote:
> Hi all, > > I've installed OpenBSD 6.3 on a Pentium III machine alongside existing > installations of Windows 95 and Windows NT 4 by manually setting up a > partition in the fdisk step and using the suggested disklabel > configuration. As recommended in INSTALL.i386, I've emarked the OpenBSD > partition as active. > > After booting the PC pauses for a few seconds before displaying "Missing > operating system". > > What I've tried: > - "boot hd0a:/bsd" from the installation CD: works > - mark partition 0 active: works, brings up NT's bootloader > - "installboot -v wd0": no change > > Any ideas? > > Output of "fdisk wd0", "disklabel wd0", and "installboot -nv wd0" > reproduced below. > > Thanks, > Sijmen J. Mulder > > > --> fdisk wd0 > > Disk: wd0 geometry: 4998/255/63 [80293248 Sectors] > Offset: 0 Signature: 0xAA55 > Starting Ending LBA Info: > #: id C H S - C H S [ start: size ] > > ------------------------------------------------------------------------------- > 0: 06 0 1 1 - 260 254 63 [ 63: 4192902 ] > FAT16B > 1: 05 261 0 1 - 1023 254 63 [ 4192965: 12257595 ] > Extended DOS > *2: A6 1024 0 1 - 3071 254 63 [ 16450560: 32901120 ] > OpenBSD > 3: 00 0 0 0 - 0 0 0 [ 0: 0 ] > unused > Disk: wd0 geometry: 4998/255/63 [80293248 Sectors] > Offset: 4192965 Signature: 0xAA55 > Starting Ending LBA Info: > #: id C H S - C H S [ start: size ] > > ------------------------------------------------------------------------------- > 0: 07 261 1 1 - 521 254 63 [ 4193028: 4192902 ] > NTFS > 1: 00 0 0 0 - 0 0 0 [ 0: 0 ] > unused > 2: 00 0 0 0 - 0 0 0 [ 0: 0 ] > unused > 3: 00 0 0 0 - 0 0 0 [ 0: 0 ] > unused > > > --> disklabel wd0 > > # /dev/rwd0c: > type: ESDI > disk: ESDI/IDE disk > label: Maxtor 6K040L0 > duid: bcc4a547f3b61211 > flags: > bytes/sector: 512 > sectors/track: 63 > tracks/cylinder: 255 > sectors/cylinder: 16065 > cylinders: 4998 > total sectors: 80293248 > boundstart: 16450560 > boundend: 49351680 > drivedata: 0 > > 16 partitions: > # size offset fstype [fsize bsize cpg] > a: 1075232 16450560 4.2BSD 2048 16384 8366 # / > b: 1045744 17525792 swap # none > c: 80293248 0 unused > d: 1474592 18571552 4.2BSD 2048 16384 11474 # /tmp > e: 2160704 20046144 4.2BSD 2048 16384 12958 # /var > f: 2611232 22206848 4.2BSD 2048 16384 12958 # /usr > g: 1247232 24818080 4.2BSD 2048 16384 9744 # > /usr/X11R6 > h: 4401248 26065312 4.2BSD 2048 16384 12958 # > /usr/local > i: 4192902 63 MSDOS > j: 4192902 4193028 NTFS > k: 2969600 30466560 4.2BSD 2048 16384 12958 # > /usr/src > l: 6905856 33436160 4.2BSD 2048 16384 12958 # > /usr/obj > m: 9009664 40342016 4.2BSD 2048 16384 12958 # /home > > > --> installboot -nv wd0 > > Using / as root > would install bootstrap on /dev/rwd0c > using first-stage /usr/mdec/biosboot, second-stage /usr/mdec/boot > would copy /usr/mdec/boot to /boot > /boot is 6 blocks x 16384 bytes > fs block shift 2; part offset 16450560; inode block 104, offset 2472 > master boot record (MBR) at sector 0 > partition 0: type 0x06 offset 63 size 4192902 > partition 1: type 0x05 offset 4192965 size 12257595 > partition 2: type 0xA6 offset 16450560 size 32901120 > /usr/mdec/biosboot will be written at sector 16450560 > Did you read the FAQ on multi-booting where they talk about creating the openbsd.pbr file and using bcdedit? In running dual-boot with Win7/OpenBSD on one system, and Win10/OpenBSD on another, and the procedure in the FAQ has worked well for me. https://www.openbsd.org/faq/faq4.html#Multibooting >
