Hi, are you still having this problem?
I tried to reproduce this as follows: 1. Created a .qcow 2 file using: vmbuilder kvm ubuntu --suite lucid --flavour server --mirror http://localhost:3142/us.archive.ubuntu.com/ubuntu/ 2. ran qemu-nbd as: qemu-nbd -n -b localhost -p 2000 ubuntu-kvm/tmpGVbB1c.qcow2 -P 1 3. ran nbd-client as: nbd-client localhost 2000 /dev/nbd1 4. mounted the fs as: mount /dev/nbd1 /mnt The fs was successfully mounted, i.e. 'ls /mnt' showed the contents. 5. umounted and disconnected using umount /mnt nbd-client -d /dev/nbd1 ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. https://bugs.launchpad.net/bugs/546997 Title: qemu-nbd -P option not working - error while reading -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs