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Linux kernel doesn't show boot messages

Sekra Invos
Expert 1260 points


Hai

I'm sekra

I'm using the kernel 3.2.44 for my beagleboard xm.when i enable the commands

->verbose x86

->Early printk

But it doesn't shows the boot messages after "Uncompressing Linux... done, booting the kernel".

i didn't know why?it boots silently.

Awaiting for a reply.Thanks in advance.

  • 0
    Genius 3510 points

    Please check Linux boot options, you can found it description in <linux_source>/Documentation/

    Also may be usefull http://processors.wiki.ti.com/index.php/Optimize_Linux_Boot_Time#Be_quiet

  • 0
    TI__Intellectual 925 points

    Hi,

    This could be due to the incorrect console parameter passed from the u-boot. Please check the console parameter in yout bootargs

    ex: setenv bootargs 'console=ttyO2,115200n8 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait'

    also try adding the loglevel = 8 to your bootargs to get the complete logs from the kernel.

  • 0 in reply to Deepu Raj
    Expert 1260 points

    Hai deep

    I already check that things,the bootargs were fine as per your same,loglevel i chossed for 7 (Debug info) and noe tried at 8 also.it doesn't shows the boot log.

    Anyother options to control it via uboot source code.???

    I get the uboot from TI website,it shows the bootlog of kernel,but this uboot doesn't shows up(it's my friend's bootloader for the same board).But the "printenv" - environment settings were the same.i checked out.

    Anyother way to control it via bootloader source code deep????? 

    Thanks