On Tue, 30 Jan 2007, Takeshi Sone wrote:
On Tue, Jan 30, 2007 at 12:40:26AM -0800, Russ Whitaker wrote:
On Sun, 28 Jan 2007, roger wrote:
Can somebody please update the Filo README file (and/or the Linuxbios Filo documentation) to including the following concerning CD-ROM device file syntax?
ie. CD-ROM device is to be specified as "hdc1" and not "hdc"!
<snip> > Personally I think that is a "bug" in FILO.
No, this is not a bug.
"hdx" refers to the entire device "x" "hdx1" refers to the first primary partition of "x" "hdx2" refers to the second primary partition of "x"
"hdb" refers to the entire CD-ROM. "hdb1" refers to the "boot disk image" in the CD-ROM.
"Boot disk image" is something like 1.44MB floppy disk image, as specified in El Torito.
The "1" is misleading. It is not a partition. Perhaps it should have been named "hdbi" or the like.
The El Torito spec says: "... int 41 is not valid on a CD-ROM." (int 41 reads/writes the partition table)
Bios int 13 (low-level disc i/o) is used to fetch a "mode" from the CD: No Emulation Mode Drive A: 1.2 Drive A: 1.44 Drive A: 2.88 Drive C: hard drive
reference: http://www.phoenix.com/NR/rdonlyres/98D3219C-9CC9-4DF5-B496-A286D893E36A/0/s...
(Interesting read, and it's not very long - 19 pages and a blank page)
Russ