hi when PXE booting a solaris 10 or opensolaris x86 platform (jumpstart or diskless), the BIOS grabs the pxegrub file from the solaris server, and runs it. but there are cases where pxegrub fails with the following messages:
-- Probing pci nic.... [UNDI]ROM IBA GE Slot 0300 v1242 by Intel Corporation Revision 2.1.0ROM IBA GE Slot 0301 v1242 by intel Corporation Revision 2.1.0 [UNDI]ROM IBA GE Slot 0300 v1242 by Intel Corporation Revision 2.1.0ROM IBA GE Slot 0300 v1242 by intel Corporation Revision 2.1.0 No Ethernet Card Found. -- pxegrub makes an UNDI real mode call to the BIOS, and then try to re-enable the A20 gate in case the UNDI code disabled it. see http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/grub/grub-0.97/netboot/undi.c#389 i have found that if i comment out the call to gateA20_set() then the problem goes away. ask me if you need a newly compiled pxegrub. alternatively you can recompile it from the opensolaris source code. looking further i could see that the problem is happening in (not so) old AMIBIOSes, during a call to the BIOS INT15 function 2401 (A20 enable). this interrupt function is clobbering %ebx. bracketing the call to int15 in stage2/asm.S with push %ebx int $15 pop %ebx solved the problem too, and is probably a better fix. note that American Megatrends Inc. is aware of this and upgrading yr bios may solve the issue too. for what it's worth.. -- Best regards, _______________________________________ jean-francois simon - themis computer 5, rue irene joliot curie 38320 eybens - france +33 (0)4 76 14 77 85 - www.themis.com _______________________________________________ driver-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/driver-discuss
