On 14/08/06, Pierre Dinh-van <[EMAIL PROTECTED]> wrote: > I'm using Ubuntu dapper on my Macbook 2GHz, in dual boot with mac os x using > rEFIt (no bootcamp).
You can boot in EFI or BIOS mode from rEFIt. BootCamp does not provide the BIOS and is only useful for Windows. I think you can tell if you are in EFI mode or not by checking the presence of /proc/efi/systab and /sys/firmware/efi/systab. That is what dmidecode does. > I noticed that very often, the Macbook can't boot on my Linux kernel, stopping > with a kernel panic : > > (I copy manually the interesting lines) > > " > [...] > Total of 2 processors activated (5825.50 BogoMIPS). > ENABLING IO-APIC IRQs > ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=1 pin2=-1 > ..MP-BIOS bug: 8254 timer not connected to IO-APIC > ...trying to set up timer (IRQ0) through the 8259A ... failed. > ...trying to set up timer as Virtual Wire IRQ... failed. > ...trying to set up timer as ExtINT IRQ... failed :(. > Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug > and send a report. Then try booting with the 'noapic' option I see the exact problem using a manually compiled 2.6.17.8 kernel. I think this problem is related to the use of a BIOS since I never have the problem when booting in EFI mode (in more than 2 months). I switched to BIOS yesterday and I had the problem a couple of times today. I also had the kernel complaining about an unsupported VGA mode just after booting. I had "vga=796" in my /etc/lilo.conf. It worked well a few times but could not boot with it now. Even after a power off/power on cycle. Maybe the BIOS provided by Apple or ATI or etc. is not so great? And I need to use a BIOS only to use this buggy ATI proprietary driver, grrr! Bye, -- Dr. Ludovic Rousseau ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Mactel-linux-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mactel-linux-users
