On 1 May 2014 14:59, Martijn Rijkeboer <mart...@bunix.org> wrote: >> Can you provide a hex dump of the MBR Linux produces? The evidence would >> seem to point at the boot code stored in the MBR. To which I made a >> recent minor tweak. So you might also try a 5.4 install to see if it >> works. > > Below are the hexdumps of the MBR. The "before" was created with Linux and > before labeling. The "after" was created with Linux and after labeling. The > "obsd-55" was created with the OpenBSD 5.5 installer with the "whole" disk > option. The "obsd-54" was created with the OpenBSD 5.4 installer with the > "whole" disk option. > > The "before" and "after" differ only on line "00001b0". The "obsd-55" and > "obsd-54" are identical. The problem occurs with all except "before". >
So marking a partition as 'Active/Bootable', (the 00 -> 80 change) causes your system to hang. Apparently Linux does this when you 'Label' it. The OpenBSD installer does it for you when you select 'Whole disk'. Nothing obviously to do with the disklabel. You could test this by manually setting the 'Active' flag on the working Linux MBR. Or, conversely unsetting the flag with fdisk after the OpenBSD install but before rebooting. In either case does it get further before noticing that it can't boot? .... Ken > Kind regards, > > > Martijn Rijkeboer > > > > before > ====== > 0000000 05ea c000 8c07 8ec8 bcd0 fffc d88e a0b8 > 0000010 8e07 31c0 31f6 b9ff 0200 f3fc eaa4 0022 > 0000020 07a0 071e 1f0e 02b4 16cd 03a8 0a74 07b0 > 0000030 cbe8 8000 b40e 0101 c2f6 7580 be08 0136 > 0000040 afe8 b200 be80 01be 04b9 8a00 3c04 7480 > 0000050 830f 10c6 f5e2 6abe e801 0096 f4fb fceb > 0000060 d088 0f24 3004 27a2 b001 2834 a2c8 0134 > 0000070 be56 011a 06f6 01b4 7501 4601 73e8 5e00 > 0000080 c726 fe06 0001 f600 b406 0101 3175 1488 > 0000090 aabb b455 cd41 8a13 7214 8124 55fb 75aa > 00000a0 f61e 01c1 1974 2eb0 53e8 6600 4c8b 6608 > 00000b0 0e89 0112 b456 be42 010a 13cd 735e b019 > 00000c0 e83b 003a 748a 8b01 024c 01b8 3102 cddb > 00000d0 7313 be05 0152 81eb 7dbe e801 0014 8126 > 00000e0 fe3e 5501 75aa ea05 7c00 0000 61be e901 > 00000f0 ff67 fc50 84ac 74c0 e80f 0002 f6eb 5350 > 0000100 0eb4 01bb cd00 5b10 c358 0010 0001 0000 > 0000110 07c0 0000 0000 0000 0000 5521 6973 676e > 0000120 6420 6972 6576 5820 202c 6170 7472 7469 > 0000130 6f69 206e 0059 424d 2052 6e6f 6620 6f6c > 0000140 7070 2079 726f 6f20 646c 4220 4f49 0d53 > 0000150 000a 0a0d 6552 6461 6520 7272 726f 0a0d > 0000160 4e00 206f 2f4f 0d53 000a 6f4e 6120 7463 > 0000170 7669 2065 6170 7472 7469 6f69 0d6e 000a > 0000180 0090 0000 0000 0000 0000 0000 0000 0000 > 0000190 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001b0 0000 0000 0000 784f b8e7 0009 0000 2000 > 00001c0 0021 fea6 ffff 0800 0000 5800 7470 0000 > 00001d0 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001f0 0000 0000 0000 0000 0000 0000 0000 aa55 > 0000200 > > > after > ===== > 0000000 05ea c000 8c07 8ec8 bcd0 fffc d88e a0b8 > 0000010 8e07 31c0 31f6 b9ff 0200 f3fc eaa4 0022 > 0000020 07a0 071e 1f0e 02b4 16cd 03a8 0a74 07b0 > 0000030 cbe8 8000 b40e 0101 c2f6 7580 be08 0136 > 0000040 afe8 b200 be80 01be 04b9 8a00 3c04 7480 > 0000050 830f 10c6 f5e2 6abe e801 0096 f4fb fceb > 0000060 d088 0f24 3004 27a2 b001 2834 a2c8 0134 > 0000070 be56 011a 06f6 01b4 7501 4601 73e8 5e00 > 0000080 c726 fe06 0001 f600 b406 0101 3175 1488 > 0000090 aabb b455 cd41 8a13 7214 8124 55fb 75aa > 00000a0 f61e 01c1 1974 2eb0 53e8 6600 4c8b 6608 > 00000b0 0e89 0112 b456 be42 010a 13cd 735e b019 > 00000c0 e83b 003a 748a 8b01 024c 01b8 3102 cddb > 00000d0 7313 be05 0152 81eb 7dbe e801 0014 8126 > 00000e0 fe3e 5501 75aa ea05 7c00 0000 61be e901 > 00000f0 ff67 fc50 84ac 74c0 e80f 0002 f6eb 5350 > 0000100 0eb4 01bb cd00 5b10 c358 0010 0001 0000 > 0000110 07c0 0000 0000 0000 0000 5521 6973 676e > 0000120 6420 6972 6576 5820 202c 6170 7472 7469 > 0000130 6f69 206e 0059 424d 2052 6e6f 6620 6f6c > 0000140 7070 2079 726f 6f20 646c 4220 4f49 0d53 > 0000150 000a 0a0d 6552 6461 6520 7272 726f 0a0d > 0000160 4e00 206f 2f4f 0d53 000a 6f4e 6120 7463 > 0000170 7669 2065 6170 7472 7469 6f69 0d6e 000a > 0000180 0090 0000 0000 0000 0000 0000 0000 0000 > 0000190 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001b0 0000 0000 0000 784f b8e7 0009 0000 2080 > 00001c0 0021 fea6 ffff 0800 0000 5800 7470 0000 > 00001d0 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001f0 0000 0000 0000 0000 0000 0000 0000 aa55 > 0000200 > > > obsd-55 > ======= > 0000000 05ea c000 8c07 8ec8 bcd0 fffc d88e a0b8 > 0000010 8e07 31c0 31f6 b9ff 0200 f3fc eaa4 0022 > 0000020 07a0 071e 1f0e 02b4 16cd 03a8 0a74 07b0 > 0000030 cbe8 8000 b40e 0101 c2f6 7580 be08 0136 > 0000040 afe8 b200 be80 01be 04b9 8a00 3c04 7480 > 0000050 830f 10c6 f5e2 6abe e801 0096 f4fb fceb > 0000060 d088 0f24 3004 27a2 b001 2834 a2c8 0134 > 0000070 be56 011a 06f6 01b4 7501 4601 73e8 5e00 > 0000080 c726 fe06 0001 f600 b406 0101 3175 1488 > 0000090 aabb b455 cd41 8a13 7214 8124 55fb 75aa > 00000a0 f61e 01c1 1974 2eb0 53e8 6600 4c8b 6608 > 00000b0 0e89 0112 b456 be42 010a 13cd 735e b019 > 00000c0 e83b 003a 748a 8b01 024c 01b8 3102 cddb > 00000d0 7313 be05 0152 81eb 7dbe e801 0014 8126 > 00000e0 fe3e 5501 75aa ea05 7c00 0000 61be e901 > 00000f0 ff67 fc50 84ac 74c0 e80f 0002 f6eb 5350 > 0000100 0eb4 01bb cd00 5b10 c358 0010 0001 0000 > 0000110 07c0 0000 0000 0000 0000 5521 6973 676e > 0000120 6420 6972 6576 5820 202c 6170 7472 7469 > 0000130 6f69 206e 0059 424d 2052 6e6f 6620 6f6c > 0000140 7070 2079 726f 6f20 646c 4220 4f49 0d53 > 0000150 000a 0a0d 6552 6461 6520 7272 726f 0a0d > 0000160 4e00 206f 2f4f 0d53 000a 6f4e 6120 7463 > 0000170 7669 2065 6170 7472 7469 6f69 0d6e 000a > 0000180 0090 0000 0000 0000 0000 0000 0000 0000 > 0000190 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001b0 0000 0000 0000 784f 0000 0000 0000 0000 > 00001c0 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001e0 0000 0000 0000 0000 0000 0000 0000 0180 > 00001f0 0002 fea6 ffff 0040 0000 5981 7470 aa55 > 0000200 > > > obsd-54 > ======= > 0000000 05ea c000 8c07 8ec8 bcd0 fffc d88e a0b8 > 0000010 8e07 31c0 31f6 b9ff 0200 f3fc eaa4 0022 > 0000020 07a0 071e 1f0e 02b4 16cd 03a8 0a74 07b0 > 0000030 cbe8 8000 b40e 0101 c2f6 7580 be08 0136 > 0000040 afe8 b200 be80 01be 04b9 8a00 3c04 7480 > 0000050 830f 10c6 f5e2 6abe e801 0096 f4fb fceb > 0000060 d088 0f24 3004 27a2 b001 2834 a2c8 0134 > 0000070 be56 011a 06f6 01b4 7501 4601 73e8 5e00 > 0000080 c726 fe06 0001 f600 b406 0101 3175 1488 > 0000090 aabb b455 cd41 8a13 7214 8124 55fb 75aa > 00000a0 f61e 01c1 1974 2eb0 53e8 6600 4c8b 6608 > 00000b0 0e89 0112 b456 be42 010a 13cd 735e b019 > 00000c0 e83b 003a 748a 8b01 024c 01b8 3102 cddb > 00000d0 7313 be05 0152 81eb 7dbe e801 0014 8126 > 00000e0 fe3e 5501 75aa ea05 7c00 0000 61be e901 > 00000f0 ff67 fc50 84ac 74c0 e80f 0002 f6eb 5350 > 0000100 0eb4 01bb cd00 5b10 c358 0010 0001 0000 > 0000110 07c0 0000 0000 0000 0000 5521 6973 676e > 0000120 6420 6972 6576 5820 202c 6170 7472 7469 > 0000130 6f69 206e 0059 424d 2052 6e6f 6620 6f6c > 0000140 7070 2079 726f 6f20 646c 4220 4f49 0d53 > 0000150 000a 0a0d 6552 6461 6520 7272 726f 0a0d > 0000160 4e00 206f 2f4f 0d53 000a 6f4e 6120 7463 > 0000170 7669 2065 6170 7472 7469 6f69 0d6e 000a > 0000180 0090 0000 0000 0000 0000 0000 0000 0000 > 0000190 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001b0 0000 0000 0000 784f 0000 0000 0000 0000 > 00001c0 0000 0000 0000 0000 0000 0000 0000 0000 > * > 00001e0 0000 0000 0000 0000 0000 0000 0000 0180 > 00001f0 0002 fea6 ffff 0040 0000 5981 7470 aa55 > 0000200
