We haven't changed the partition table yet.  This is your last chance.
parameters extracted from in-core disklabel are:
cylinders=620181 heads=16 sectors/track=63 (1008 blks/cyl)

Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=620181 heads=16 sectors/track=63 (1008 blks/cyl)

Information from DOS bootblock is:
1: sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
    start 63, size 167766732 (81917 Meg), flag 80 (active)
        beg: cyl 0/ head 1/ sector 1;
        end: cyl 1023/ head 254/ sector 63
2: sysid 11 (0x0b),(DOS or Windows 95 with 32 bit FAT)
    start 63, size 167766732 (81917 Meg), flag 0
        beg: cyl 0/ head 1/ sector 1;
        end: cyl 547/ head 4/ sector 63
3: sysid 11 (0x0b),(DOS or Windows 95 with 32 bit FAT)
    start 0, size 83883366 (40958 Meg), flag 0
        beg: cyl 0/ head 0/ sector 1;
        end: cyl 273/ head 9/ sector 63
4: <UNUSED>