Luis.F.Correia wrote:

Boot DOS from a floppy,

type fdisk /mbr

Bingo.  As a couple of you kindly suggested,
dos 6.22 fdisk /mbr works when fdisk itself
doesn't always successfully overwrite leftover
bytes in the mbr.

I think I originally fdisked and formatted that CF
in Win98, leading to these problems.

FWIW:
-------
  1) I had previously tried using the BIOS ide detect feature
     on the CF card.  It returned two possible drive types, one
     was identical to how linux sees the drive, as
            CHS=490/8/32, normal
     and the other was the more modern style:
            CHS=62/32/63, LBA
  2) I had tried both modes.  Nogo.
  3) Only after fdisk /mbr does it work.
  4) I did have A,C booting in my BIOS always.
  5) I had tried FAT12, FAT16 <32M, FAT16 >32M, all with partition
     sizes ranging from 10MB to 60MB.

  6) Currently running CF as: Primary Master, alone on bus.
                              LBA mode, C,H,S, all specifically set.
                              BIOS auto selecting PIO Mode 1
                              DOS-6.22 fdisk /MBR
                              fdisk a primary dos partition, 12MB
                              make it active
                              reboot and format c: /s
                              reboot to the CF and see dos appear.
                              reboot to LEAF and mount -t msdos /dev/hda1 /mnt
                              rm /mnt/*
                              umount /mnt
                              syslinux -s /dev/hda1
                              mount -t msdos /dev/hda1 /mnt
                              mount -t msdos /dev/fd0u1680 /a
                              cp /a/*lrp syslinux* linux /mnt
                              umount /a
                              vi /mnt/syslinux.cfg   (to set it to use hda1)
                              umount /mnt
                              reboot joy.

ymmv,
Matt




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