Custom Kernel Qemu: No Choice for rootfs












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I tried creating a custom kernel config, but can't boot now. The qemu command looks like the following:



 qemu-system-x86_64 -kernel $KERNEL/arch/x86/boot/bzImage 
-append "console=ttyS0 root=/dev/hda debug earlyprintk=serial slub_debug=QUZ"
-drive file=$IMAGE/wheezy.$1.img,format=raw -net user,hostfwd=tcp::10021-:22 -net nic
-enable-kvm -nographic -m 2G -smp 2


And the error message:



[    1.029707] VFS: Cannot open root device "hda" or unknown-block(0,0): error -6
[ 1.031629] Please append a correct "root=" boot option; here are the available partitions:
[ 1.033696] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


The image boots with other pre-built kernels, so I think I might have missed something in the Kconfig, but don't know what.










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    0














    I tried creating a custom kernel config, but can't boot now. The qemu command looks like the following:



     qemu-system-x86_64 -kernel $KERNEL/arch/x86/boot/bzImage 
    -append "console=ttyS0 root=/dev/hda debug earlyprintk=serial slub_debug=QUZ"
    -drive file=$IMAGE/wheezy.$1.img,format=raw -net user,hostfwd=tcp::10021-:22 -net nic
    -enable-kvm -nographic -m 2G -smp 2


    And the error message:



    [    1.029707] VFS: Cannot open root device "hda" or unknown-block(0,0): error -6
    [ 1.031629] Please append a correct "root=" boot option; here are the available partitions:
    [ 1.033696] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


    The image boots with other pre-built kernels, so I think I might have missed something in the Kconfig, but don't know what.










    share|improve this question



























      0












      0








      0







      I tried creating a custom kernel config, but can't boot now. The qemu command looks like the following:



       qemu-system-x86_64 -kernel $KERNEL/arch/x86/boot/bzImage 
      -append "console=ttyS0 root=/dev/hda debug earlyprintk=serial slub_debug=QUZ"
      -drive file=$IMAGE/wheezy.$1.img,format=raw -net user,hostfwd=tcp::10021-:22 -net nic
      -enable-kvm -nographic -m 2G -smp 2


      And the error message:



      [    1.029707] VFS: Cannot open root device "hda" or unknown-block(0,0): error -6
      [ 1.031629] Please append a correct "root=" boot option; here are the available partitions:
      [ 1.033696] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


      The image boots with other pre-built kernels, so I think I might have missed something in the Kconfig, but don't know what.










      share|improve this question















      I tried creating a custom kernel config, but can't boot now. The qemu command looks like the following:



       qemu-system-x86_64 -kernel $KERNEL/arch/x86/boot/bzImage 
      -append "console=ttyS0 root=/dev/hda debug earlyprintk=serial slub_debug=QUZ"
      -drive file=$IMAGE/wheezy.$1.img,format=raw -net user,hostfwd=tcp::10021-:22 -net nic
      -enable-kvm -nographic -m 2G -smp 2


      And the error message:



      [    1.029707] VFS: Cannot open root device "hda" or unknown-block(0,0): error -6
      [ 1.031629] Please append a correct "root=" boot option; here are the available partitions:
      [ 1.033696] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)


      The image boots with other pre-built kernels, so I think I might have missed something in the Kconfig, but don't know what.







      linux-kernel ext4 qemu






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      share|improve this question













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      edited 38 mins ago









      SouravGhosh

      455311




      455311










      asked Nov 5 at 16:02









      KillPinguin

      12




      12



























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