[Qemu-devel] [Bug 1026176] [NEW] unable to boot squashfs through mtd device

[Vincent de RIBOU]

Public bug reported:

Hi,

I have built latest qemu archive qemu-1.1.1 to be sure of up to date source 
code.
I have then built buildroot squashfs image, which can be used correctly with 
cmdline like:

qemu-system-i386 -m 64 -k fr -boot c -kernel images/bzImage -drive
if=ide,file=images/rootfs.squashfs  -append "root=/dev/sda"

Then I wanted to modify cmdline to use real MTD device, like:

qemu-system-i386 -m 64 -k fr -boot c -kernel images/bzImage -drive
if=mtd,file=images/rootfs.squashfs  -append "root=/dev/mtdblock0".

But nothing was good under kernel.
Even if mtd0 is reported through qemu interface (Ctrl Alt+2), no device can be 
found under kernel even if all drivers are built to use it.

Is this feature okay on qemu-1.1.1 ??
did I do mistake in my cmdline??

thank you for your help.
regards,

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: 1.1.1

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https://bugs.launchpad.net/bugs/1026176

Title:
  unable to boot squashfs through mtd device

Status in QEMU:
  New

Bug description:
  Hi,

  I have built latest qemu archive qemu-1.1.1 to be sure of up to date source 
code.
  I have then built buildroot squashfs image, which can be used correctly with 
cmdline like:

  qemu-system-i386 -m 64 -k fr -boot c -kernel images/bzImage -drive
  if=ide,file=images/rootfs.squashfs  -append "root=/dev/sda"

  Then I wanted to modify cmdline to use real MTD device, like:

  qemu-system-i386 -m 64 -k fr -boot c -kernel images/bzImage -drive
  if=mtd,file=images/rootfs.squashfs  -append "root=/dev/mtdblock0".

  But nothing was good under kernel.
  Even if mtd0 is reported through qemu interface (Ctrl Alt+2), no device can 
be found under kernel even if all drivers are built to use it.

  Is this feature okay on qemu-1.1.1 ??
  did I do mistake in my cmdline??

  thank you for your help.
  regards,

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