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Re: [Libguestfs] virt-df -a xxx.qcow2 failure, after about ten minutes , failed



On Mon, Dec 02, 2019 at 08:09:47PM +0800, thomas wrote:
> [    0.000000] Linux version 3.10.0 (root NSG) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) ) #1 SMP Fri Nov 1 10:40:29 UTC 2019

The kernel that fails isn't the Red Hat kernel, so I suppose it lacks
the right drivers or has some different configuration which breaks
libguestfs.

You can tell libguestfs to use a different kernel by setting the
SUPERMIN_KERNEL parameter and removing the /var/tmp/.guestfs-*
directory between runs.  See the FAQ here:

http://libguestfs.org/guestfs-faq.1.html#broken-kernel-or-trying-a-different-kernel

For comparison the successful run is using the ordinary CentOS kernel:

[    0.000000] Linux version 3.10.0-957.10.1.el7.x86_64 (mockbuild kbuilder bsys centos org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) ) #1 SMP Mon Mar 18 15:06:45 UTC 2019

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine.  Supports Linux and Windows.
http://people.redhat.com/~rjones/virt-df/


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