unable to start the installation of a kvm win7 guest

nass asked:

I am using this command (using virt-install on a debian 7 host) to start the installation of windows7 guest OS. I have assembled the following from a plethora of sites

virt-install --connect qemu:///system 
    -n win7vnc -r 2048 --vcpus=2 
    --disk path=/mnt/hd_nass/vms/win7/win7.img,format=qcow2 
    --network network=default,mac=RANDOM 
    --graphics vnc,password=johndoe,port=5900  
    -c ../../isos/win7_sp1_ult_64bit/Windows 7 SP1 Ultimate (64 Bit).iso 
    --os-type=windows --os-variant=win7 --boot cdrom,hd

The server is running headless but I presume the vnc clause takes care of creating a suitable environment for qemu. This is not the case however as I get this error:

ERROR    internal error process exited while connecting to monitor: char device redirected to /dev/pts/2

what is more I get one additional error, that relates to the disk image:

kvm: -drive file=/mnt/hd_nass/vms/win7/win7.img,if=none,id=drive-ide0-0-0,format=qcow2: could not open disk image /mnt/hd_nass/vms/win7/win7.img: Permission denied

I created the image as my non-root user, with the command:

qemu-img create -f qcow2 win7.img 100G

still everytime I run virt-install command above (as my non-root user), the image ownership is reset to root:root. This could explain the “permission denied” error, but why would the img ownership change anyway?

EDIT: the log from the last dump is here

My answer:


could not open disk image /mnt/hd_nass/vms/win7/win7.img: Permission denied Well, that confirms a permission problem.

Check the permissions of all the parent directories as well.


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