Re: [Libguestfs] hang after seabios
On Thu, Jul 31, 2014 at 03:32:18PM -0700, Zetan Drableg wrote:
Ok -
By the way, I looked into updating out KVM versions. Since we already
have so many KVM servers of this version in production, I can't easily
forklift update everything without much testing.
exec /usr/libexec/qemu-kvm -s -S "$@"
export LIBGUESTFS_HV=/root/work/qemu-wrapper
export LIBGUESTFS_BACKEND=direct
How do I simulate the setup of devices the test tool perform?
Just copy/pasting the qemu-kvm argument list doesn't work.
I was hoping that LIBGUESTFS_HV would replace usage of
/usr/libexec/qemu-kvm with /root/work/qemu-wrapper, but does not
appear to
OK I think the problem is that it's libguestfs 1.20, where the
environment variable names are different (check guestfs(3) in your
local copy). This should work:
export LIBGUESTFS_ATTACH_METHOD=appliance
export LIBGUESTFS_QEMU=/root/work/qemu-wrapper
There's an additional problem which is you need the wrapper to
distinguish between -help and -version tests and the final command.
Use a wrapper like this:
----------------------------------------------------------------------
#!/bin/bash -
qemu=/usr/libexec/qemu-kvm
if ! echo "$@" | grep -sqE -- '-help|-version'; then
echo QEMU debugging enabled.
debug="-s -S"
fi
exec $qemu $debug "$@"
----------------------------------------------------------------------
The wrapper must be executable.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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