Messages in this thread | | | From | "David R. Wilson" <> | Subject | Re: Asrock K7S8X Motherboard kernel problem | Date | Sun, 25 May 2003 12:52:58 -0500 (CDT) |
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Thanks Mikael and Vojtech,
I tried both bootloaders (LILO and Grub) and still can't seem to get the floppy controller detected with 2.4.21-rc3.
I tried the latest stock RedHat kernel (2.4.20-13.9) and it seems to work. It sounds like Alan might have fixed something and hasn't told us what it was yet :-). The RedHat kernel says:
Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077
With 2.4.21-rc3 I get: Floppy drive(s): fd0 is 1.44M floppy0: no floppy controllers found
One other interesting bit that shows up in the RedHat dmesg is:
SiS pirq: advanced IDE/ACPI/DAQ mapping not yet implemented advanced SiS pirq mapping not yet implemented
The motherboard has the SiS746 chipset along with the 963 southbridge. I apparently copied an old dump (by hand) of the problem. The patch by Vojtech Pavlik for the SIS southbridge detects the 963 without a problem. I also added the Bios Enhanced Disk Device Service 3.0 patch (CONFIG_EDD) to the source.
http://domsch.com/linux/edd30/
I still get "no floppy controllers found"
I am open to suggestions....
Thanks, Dave
mikpe@csd.uu.se wrote... > > On Fri, 23 May 2003 17:19:31 -0500 (CDT), David R. Wilson wrote: > >I must be missing something, I have an Asrock K7S8X motherboard. > ... > >The boot messages mention a missing floppy controller among other > >problems: > > Key words: Asrock (ASUS actually) and no FDC found. > > This has been observed before on semi-recent ASUS mainboards. > It's caused by some boot loaders that use an incorrect "out" > instruction intended to reset the FDC. That "out" instruction > was acceptable for ancient FDCs, but it locks up the FDCs in > newer super-I/O chips found in some ASUS mainboards. The correct > approach is to issue a BIOS call instead, or use a real driver > that knows how to identify and drive newer FDCs. > > This bug existed in the kernel's boot loader up until 2.4.13 or > so when I fixed it to eliminate the FDC lock up problem on my > ASUS P4T-E. Lilo and syslinux-2.02 don't have the bug.
-- David R. Wilson WB4LHO World Wide Network Services Nashville, Tennessee USA Need QSL cards? david@wwns.com http://store.wwns.com/lz1jz
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