On 10/05/22 16:06, Do Re wrote: > Hello all, > > background: One of my VM stopped working - on startup, I get the message > "No bootable device" in the virtual machine. > > I would like to inspect the corresponding image with libguestfs-tools. > > However, I don't know how to pass the encryption key to the tool. For > example: > > virt-ls -a /opt/vm_witherror/machine1.qcow2 / > libguestfs: trace: set_verbose true > libguestfs: trace: set_verbose = 0 > libguestfs: create: flags = 0, handle = 0x5645c40d6b00, program = virt-ls > libguestfs: trace: add_drive "/opt/vm_witherror/machine1.qcow2" > "readonly:true" > libguestfs: creating COW overlay to protect original drive content > libguestfs: trace: get_tmpdir > libguestfs: trace: get_tmpdir = "/tmp" > libguestfs: trace: disk_create "/tmp/libguestfsxECmri/overlay1.qcow2" > "qcow2" -1 "backingfile:/opt/vm_witherror/machine1.qcow2" > libguestfs: command: run: qemu-img > libguestfs: command: run: \ create > libguestfs: command: run: \ -f qcow2 > libguestfs: command: run: \ -o backing_file=/opt/vm_witherror/machine1.qcow2 > libguestfs: command: run: \ /tmp/libguestfsxECmri/overlay1.qcow2 > qemu-img: /tmp/libguestfsxECmri/overlay1.qcow2: Parameter > 'encrypt.key-secret' is required for cipher > Could not open backing image. > libguestfs: error: qemu-img: /tmp/libguestfsxECmri/overlay1.qcow2: > qemu-img exited with error status 1, see debug messages above > libguestfs: trace: disk_create = -1 (error) > libguestfs: trace: add_drive = -1 (error) > libguestfs: trace: close > libguestfs: closing guestfs handle 0x5645c40d6b00 (state 0) > libguestfs: command: run: rm > libguestfs: command: run: \ -rf /tmp/libguestfsxECmri > > > Could you please provide an example on how to get such an encrypted disk > mounted? My understanding is that libguestfs (and guestfs-tools) do not currently support the kind of encrypted disk where the encryption is implemented by QEMU, at the qcow2 layer.