Centos 7.5 is released with the new kernel so workaround applied
for Centos 7.4 update kernel needs revert.
The patch reverts the following 4 commits applied
in order to override kernel. Some nested VMs(Skylake) have
issues running virt-customize with kvm backend, so set
LIBGUESTFS_BACKEND_SETTINGS=force_tcg to not use
kvm accelaration. Setting this option drops performance
for running virt-customize a little but can't find any other
option until it's fixed in kernel/kvm.
Revert "add option to turn on/off non default kernel"
This reverts commit fec6fd069d074a73304c3e0498a00855df2fa4c4.
Revert "Do not attempt install kernel when chrooted"
This reverts commit d991c1033f3a6390720210d682e3c155959bbe71.
Revert "Ensure libguestfs_kernel_override kernel is installed"
This reverts commit ff0a5c9ac7149e89da2c01a8e184004bb536d43e.
Revert "Set SUPERMIN_* variables to working kernel"
This reverts commit 6aac21081db4054b71257c396823b9af1d760311.
Change-Id: If46010d7ca14f9dde9a49173aa0b6de91c3826a8
Related-Bug: #1743749
yatin
071b871bad