[Libguestfs] 回复： bug report

[Richard W.M. Jones]

On Wed, Jan 08, 2020 at 09:05:55PM +0800, 谢威 wrote:
> > libguestfs: trace: disk_create "/tmp/libguestfsHRQGUn/overlay1.qcow2" "qcow2" -1 "backingfile:/var/tmp/.guestfs-0/appliance.d/root" "backingformat:raw"
> > libguestfs: command: run: qemu-img
> > libguestfs: command: run: \ create
> > libguestfs: command: run: \ -f qcow2
> > libguestfs: command: run: \ -o backing_file=/var/tmp/.guestfs-0/appliance.d/root,backing_fmt=raw
> > libguestfs: command: run: \ /tmp/libguestfsHRQGUn/overlay1.qcow2
> > qemu-img: /tmp/libguestfsHRQGUn/overlay1.qcow2: A regular file was expected by the 'file' driver, but something else was given
> > Could not open backing image to determine size.

There's something really weird going on here with your system.
Could it be that /var/tmp is not readable?

Tomas already suggested doing this:

  rm -rf /var/tmp/.guestfs-*

then try to run libguestfs-test-tool again.  If it still doesn't work,
have a look at the permissions of files in /var/tmp/.guestfs-0 or if
you see any SELinux audit messages.

Rich.

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