DebuggingKVM

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[[Include(Debugging/Header)]]
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 * If your linux guest can't boot, start kvm with {{{ -serial file:kvm_guset_debug.log }}}.
   {{{ kvm linux_guest.img -serial file:kvm_guset_debug.log 		 * If your linux guest can't boot, start kvm with {{{ -serial file:kvm_guest_debug.log }}}.
   {{{
 kvm linux_guest.img -serial file:kvm_guset_debug.log
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   {{{ kernel /vmlinuz root=/dev/sda1 earlycon=ttyS0 console=ttyS0    {{{
 kernel /vmlinuz root=/dev/sda1 earlycon=ttyS0 console=ttyS0

Debugging Central

This page is part of the debugging series — pages with debugging details for a variety of Ubuntu packages.

Debugging procedure

Reporting a bug

All reports should contain the following information. Please be sure to attach these files to the bug report.

  • uname -a > uname-a.log

  • cat /proc/version_signature > proc_version_signature.log

  • dmesg > dmesg.log

  • cat /proc/cpuinfo > proc_cpuinfo.log

  • If your linux guest can't boot, start kvm with  -serial file:kvm_guest_debug.log . 

    •  kvm linux_guest.img -serial file:kvm_guset_debug.log

      And edit grub to boot kernel with  earlycon=ttyS0 console=ttyS0  

       kernel /vmlinuz root=/dev/sda1 earlycon=ttyS0 console=ttyS0

CategoryServerTeam CategoryBugSquad CategoryDebugging

DebuggingKVM (last edited 2015-06-18 16:22:08 by serge-hallyn)