[Qemu-devel] [Bug 1811782] [NEW] QEMU Windows fails to mount rootfs on an ISO where QEMU Linux works normally

[Chris Ward]

Public bug reported:

I have installed QEMU 3.1.0 for Microsoft Windows from 
https://qemu.weilnetz.de/w64/ . When I give the command "qemu-system-x86_64.exe 
-cdrom ..\QemuSaver\freeduc2.iso", qemu boots the ISO, but the resulting Linux 
kernel panics when trying to mount the root file system. Running the equivalent 
command under Linux (OpenSuSE Leap 15.0) results in success.
I will attach a screenshot of the command and the kernel panic message.
To reproduce the problem, download the zip file from Google Drive here 
https://drive.google.com/file/d/1bAozvGeRF7PbkOnJKzrFHxhUh2kDLz6L/view?usp=sharing,
 and unpack it under Microsoft Windows. You can either run the installer (which 
will install QEMU 3.0.0 and an ISO image in C:\QemuSaver) or you can run the 
command I gave from the directory where your QEMU is installed.

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: kernel-panic qemu rootfs windows

** Attachment added: "Screenshot of command to invoke QEMU and resulting error"
   
https://bugs.launchpad.net/bugs/1811782/+attachment/5229205/+files/qemu-fail-to-mount-root.png

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https://bugs.launchpad.net/bugs/1811782

Title:
  QEMU Windows fails to mount rootfs on an ISO where QEMU Linux works
  normally

Status in QEMU:
  New

Bug description:
  I have installed QEMU 3.1.0 for Microsoft Windows from 
https://qemu.weilnetz.de/w64/ . When I give the command "qemu-system-x86_64.exe 
-cdrom ..\QemuSaver\freeduc2.iso", qemu boots the ISO, but the resulting Linux 
kernel panics when trying to mount the root file system. Running the equivalent 
command under Linux (OpenSuSE Leap 15.0) results in success.
  I will attach a screenshot of the command and the kernel panic message.
  To reproduce the problem, download the zip file from Google Drive here 
https://drive.google.com/file/d/1bAozvGeRF7PbkOnJKzrFHxhUh2kDLz6L/view?usp=sharing,
 and unpack it under Microsoft Windows. You can either run the installer (which 
will install QEMU 3.0.0 and an ISO image in C:\QemuSaver) or you can run the 
command I gave from the directory where your QEMU is installed.

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