okay more information from the bug reporter, is this a know problem, is it fixed already?
Thanks. ----- Forwarded message from Zinx Verituse <[EMAIL PROTECTED]> ----- > Date: Sun, 24 Mar 2002 22:05:17 -0600 > From: Zinx Verituse <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Subject: Bug#139774: GRUB hangs until A20 is not goofy :P > > Well, it turns out this motherboard likes to disable the keyboard > controller completely. Including the A20 gate. > > Porting the code from Linux would fix this, as it seems to have > some code to cover all the cases, or at least all the ones that > matter. > > For now, I've written my own gateA20 function that uses port 0x92.. > Apparently not all systems have this functionality, and some that do > don't implement it fully (though I don't know if the problems will > affect GRUB) > > Copying from Linux (which copies from SYSLINUX) would be the best, > I think :) > > my gateA20: > > /* > * gateA20(int linear) > * > * Gate address-line 20 for high memory. > * > * This routine will fail on some computers. > */ > > ENTRY(gateA20) > pushl %eax > > inb $0x92, %al > andb $0xfe, %al > testb $2, %al > jz goff > > cmpl $0, 0x8(%esp) > jnz gret > > andb $0xfc, %al > outb $0x92 > jmp gret > > goff: > cmpl $0, 0x8(%esp) > jz gret > > orb $2, %al > outb $0x92 > > gret: > popl %eax > ret > > -- > Zinx Verituse > ----- End forwarded message ----- -- Jason Thomas Phone: +61 2 6257 7111 System Administrator - UID 0 Fax: +61 2 6257 7311 tSA Consulting Group Pty. Ltd. Mobile: 0418 29 66 81 1 Hall Street Lyneham ACT 2602 http://www.topic.com.au/ _______________________________________________ Bug-grub mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-grub
