On 2020-07-09 20:01, Konstantin Svist wrote:
I've set up a win10 virtual machine in VMM QEMU/KVM and trying to pass
through a DVD.

The virtual disk setting in the VM suggests /dev/sr0, but whenever I
select that, the machine refuses to boot with the following error:


Error starting domain: internal error: child reported (status=125):
unable to open /dev/sr0: Read-only file system

Traceback (most recent call last):
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in
cb_wrapper
     callback(asyncjob, *args, **kwargs)
   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb
     callback(*args, **kwargs)
   File "/usr/share/virt-manager/virtManager/object/libvirtobject.py",
line 66, in newfn
     ret = fn(self, *args, **kwargs)
   File "/usr/share/virt-manager/virtManager/object/domain.py", line
1279, in startup
     self._backend.create()
   File "/usr/lib64/python3.7/site-packages/libvirt.py", line 1136, in create
     if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirt.libvirtError: internal error: child reported (status=125):
unable to open /dev/sr0: Read-only file system


I've tried changing the disk bus (SATA/SCSI), and flipping "Shareable"
toggle, neither one helps.

Storage format is set to "raw" (text), not sure what else it should be..


Any help?


Hi Konstantin,

Not what you asked, BUT WHEN DOES THAT STOP ME!

W10 installs a lot easier/faster from the ISO.

Go to

https://www.microsoft.com/en-us/software-download/windows10ISO

and download the ISO.  This insures you get the latest build.
M$'s updates are a NIGHTMARE.

Then inside virt-manager, mount the iso as a SATA CD-ROM.
Then go to boot and set it at the top

Let me know if you want my W10 de-fang procedure

-T

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