cyberhawk001 at gmail
May 10, 2012, 3:23 PM
Views: 325
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Re: Recommended Best way to Upgrade/Update Xen
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humm, OK in that case, i guess i should be a little more detailed. I did:
- Debian Wheezy 64bit
- It was original installed with kernel 3.2.0-2-amd64
- Next compiled and installed kernel 3.3.4, where only modified .config
to enabled all Xen options
- Rebooted into kernel 3.3.4 to make sure it works first. (Didn't remove
kernel 3.2.0-2-amd64 in case of issues)
- Compiled and installed Xen 4.2-unstable with the latest changeset 25269
- Rebooted into Xen 4.2-unstable using kernel 3.3.4
So you do some testing in Xen 4.2-unstable, to make sure the latest
updates to the Xen 4.2-unstable source didn't mess something up. But, if
you need to go back to a previous changest, OR even downgrade to Xen
4.1.2, would you:
A.) Reboot into kernel 3.3.4 without xen, do a complete remove of Xen
4.2-unstable (using synaptic sudo apt-get autoremove xen*** or similar),
than install the next package you want to test, and reboot into Xen***
with Kernel 3.3.4?
B.) OR boot into kernel 3.3.4 without xen, and install the newly built
Xen DEB package without first removing it, which will overwrite all
current files and directories with the new one?
For the sake making it simpler to test a bunch of changesets, nothing
else was changed or removed, not the /etc/network/interfaces, or
/etc/modules, didn't update grub.cfg until the new Xen was installed,
and only Xen was removed / reinstalled.
> This is a good question to know. Much will depend on what you mean by
> "Xen" and updating "Xen".
>
> In my particular case, I run generic Distro-based Xen 3.0.x under
> CentOS 5.7, and will be upgrading to GITCO-based Xen 4.1.2. My
> upgrade steps are
>
> Distribution Install:
>
> # yum update
> # yum groupinstall Xen
> ==> or yum groupinstall Virtualization, before CentOS 5.8 had been
> released.
> # vi /etc/grub.conf
> ==> change default= to use the Xen kernel= stanza.
> # reboot
>
> Upgrade install to 4.1.2:
>
> # cd /etc/yum.repos.d
> # wget http://www.gitco.de/repo/GITCO-XEN4.1.2_x86_64.repo
> # rpm -e --nodeps libvirt.i386
> # rpm -e --nodeps libvirt.x86_64
> # rpm -e --nodeps libvirt-python
> # yum update
> # vi /etc/grub.conf
> ==> consider whether your hardware requires pci=nomsi on the
> module=vmlinuz line of the active stanzas. Dell R610 with MegaRAID
> requires it.
> # reboot
>
> --Andy
>
>
> On Thu, May 10, 2012 at 4:30 PM, <cyberhawk001 [at] gmail
> <mailto:cyberhawk001 [at] gmail>> wrote:
>
> This might be a silly question for most, but since Xen is ever so
> changing with regular changesets and updates, what is the "best
> practice" way to upgrade / update or even downgrade Xen?
>
> 1.) Is it by booting into regular Linux Kernel without Xen, do a
> complete uninstall of the old Xen, than install the newly compiled
> Xen?
>
> 2.) Is it by booting into regular Linux Kernel without Xen, than
> install the newly compiled Xen, were it will / should overwrite
> everything with the new version?
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users [at] lists <mailto:Xen-users [at] lists>
> http://lists.xen.org/xen-users
>
>
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