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FAQ: Document how to switch kernel and qemu.

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Richard W.M. Jones
2016-10-21 12:30:07 +01:00
parent 1d5cd15e3a
commit 7822d4dccb
1 changed files with 19 additions and 0 deletions
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docs/guestfs-faq.pod
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@@ -1033,6 +1033,25 @@ Kill any session (non-root) libvirtd that is running, and next time
you run the libguestfs command, you should see a large amount of
useful debugging information from libvirtd in F</tmp/libvirtd.log>
=head2 Broken kernel, or trying a different kernel.
You can choose a different kernel for the appliance by setting some
L<supermin environment variables|supermin(8)/ENVIRONMENT VARIABLES>:
export SUPERMIN_KERNEL_VERSION=4.8.0-1.fc25.x86_64
export SUPERMIN_KERNEL=/boot/vmlinuz-$SUPERMIN_KERNEL_VERSION
export SUPERMIN_MODULES=/lib/modules/$SUPERMIN_KERNEL_VERSION
rm -rf /var/tmp/.guestfs-*
libguestfs-test-tool
=head2 Broken qemu, or trying a different qemu.
You can choose a different qemu by setting the hypervisor
L<environment variable|guestfs(3)/ENVIRONMENT VARIABLES>:
export LIBGUESTFS_HV=/path/to/qemu-system-x86_64
libguestfs-test-tool
=head1 DESIGN/INTERNALS OF LIBGUESTFS
See also L<guestfs-internals(1)>.