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Hi. I'm trying to boot the kernel with additional gz file. Code: title tboot w/ Ubuntu 10.04.1 LTS, kernel 2.6.32-24-generic uuid e7afd04f-1548-48e9-941b-49988cc40a5f kernel /boot/tboot.gz logging=serial,vga,memory module /boot/vmlinuz-2.6.32-24-generic intel_iommu=on root=UUID=e7afd04f-1548-48e9-941b-49988cc40a5f ro ...
  1. 08-12-2010 #1
    yhwan
    yhwan is offline
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    How do I get the boot log before the kernel boots?

    Hi. I'm trying to boot the kernel with additional gz file.
    Code:
    title           tboot w/ Ubuntu 10.04.1 LTS, kernel 2.6.32-24-generic
uuid            e7afd04f-1548-48e9-941b-49988cc40a5f
kernel          /boot/tboot.gz logging=serial,vga,memory
module          /boot/vmlinuz-2.6.32-24-generic intel_iommu=on root=UUID=e7afd04f-1548-48e9-941b-49988cc40a5f ro splash kdb=early
module          /boot/initrd.img-2.6.32-24-generic
module          /boot/i7_QUAD_SINIT_20.BIN
    However, when I boot with this, tboot.gz seems to have an error that makes the computer to restart.
    So I want to see the log of booting tboot.gz.
    This is before ubuntu is booted.
    Does anyone know a way to get the log of this tboot.gz boot?
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  2. 08-12-2010 #2
    Kloschüssel
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    Hidiho and welcome to this forum,

    kernel /boot/tboot.gz logging=serial,vga,memory
    This makes me believe that the logging is written to some serial port. Attach a serial cable and see what's coming there?
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