>>>>> OKUJI Yoshinori writes:

 OY>   No. When chainloading other bootloader, GRUB passes the boot
 OY> drive to the bootloader in the register %dl (Do not ask me why
 OY> %dl is used. This is just a convention.).

The BIOS INT13 interface uses %dl, and bootloaders assume that their
parent loaded them via INT13 and immediately transferred control,
thereby leaving the boot drive in %dl.

-- 
 Gordon Matzigkeit <[EMAIL PROTECTED]>  //\ I'm a FIG (http://www.fig.org/)
Committed to freedom and diversity \// I use GNU (http://www.gnu.org/)

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