boot.fha -- Device Driver

Boot block for floppy disk

To be  bootable, a COHERENT file  system must contain a  boot block (either
boot or  boot.fha).  In  addition, all hard  disks must contain  the master
boot block mboot or an equivalent.

boot.fha is a  boot block for a hard disk  partition or a 15-sector floppy.
It must be  installed as the first sector of  the partition or diskette, as
follows:

    /etc/fdformat -a /dev/fha0
    /etc/badscan -v -o proto1 /dev/fha0 2400
    /etc/mkfs /dev/fha0 proto1
    rm proto1
    cp /conf/boot.fha /dev/fha0

boot.fha searches  its root directory  `/' for file autoboot.   If it finds
this kernel, boot.fha loads and runs it.  Otherwise, it gives the prompt ?,
to which the user must type the name of the operating-system kernel to load
(typically, coherent).  If boot.fha  cannot find the requested kernel or if
an error occurs, boot.fha repeats the prompt and the user must type another
name.

Files

/conf/boot.fha -- Partition or 15-sector 96tpi floppy boot block

See Also

badscan,
boot,
device drivers,
fdisk,
mboot,
mkfs

© 2012 by Stephen A. Ness