[CentOS-virt] CentOS 6 Virt SIG Xen 4.6 packages available in centos-virt-xen-testing

Thu Jan 14 16:57:43 UTC 2016
George Dunlap <dunlapg at umich.edu>

As mentioned yesterday, Xen 4.6 packages are now available for
testing.  These also include an update to libvirt 1.3.0, in line with
what's available for CentOS 7.  Please test, particularly the upgrade
if you can, and report any problems here.

To upgrade:

yum update --enablerepo=centos-virt-xen-testing

To install from scratch:

* Install centos-release-xen from centos-extras

yum install centos-release-xen

* Update to get the new kernel:

yum update

* Install the Xen packages from the centos-virt-xen-testing repo:

yum install --enablerepo=centos-virt-xen-testing xen

Keep in mind that there is still a bug in the upstream CentOS
new-kernel script which for some people consistently fails to add an
"initird" line to the Xen boot stanza.  Check /boot/grub/grub.conf;
the Xen stanza should look something like this:

title CentOS (3.18.21-17.el6.x86_64)
    root (hd0,0)
    kernel /xen.gz dom0_mem=1024M,max:1024M cpuinfo com1=115200,8n1
console=com1,tty loglvl=all guest_loglvl=all
    module /vmlinuz-3.18.21-17.el6.x86_64 ro
root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD
rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16 crashkernel=auto
rd_LVM_LV=VolGroup/lv_root  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
    module /initramfs-3.18.21-17.el6.x86_64.img