[drbd-mc] Issues with LCMC v1.3.23

Rasto Levrinc rasto.levrinc at gmail.com
Mon Aug 27 14:23:06 CEST 2012


On Thu, Aug 9, 2012 at 3:39 PM, Caspar Smit <c.smit at truebit.nl> wrote:
> Hi Rasto,
>
> First of all, thanks for fixing the issues I had in v1.3.16
>
> Here are a couple more for v1.3.23

Hi Caspar,

thanks for bug reports (and solutions). I'll fixed that as soon as possible.

Rasto

>
> 1) From the changelog:
>
> PCMK: add -Arfn options to crm_mon
>
> The -A parameter code was merged into the pacemaker tree at a late
> stage in the 1.0.x branch and from 1.1.2 upwards. so not all pacemaker
> installations support this.
> My debian squeeze installation (pacemaker package from stable
> repository) doesn't support the -A parameter so the crm_mon status
> screen in LCMC displays "error"
>
> Maybe you could make a check if crm_mon supports the -A parameter and
> then use it (because it is quite handy) and otherwise don't use it.
>
>
> 2) Changing IDE disk to Virtio disk results in unbootable VM.
>
> I created a VM using LCMC with an IDE Disk.
>
> At a later point I wanted to change to IDE disk to a Virtio disk.
>
> I changed it and then the result is the following error:
>
> error: Failed to start domain test1
> error: internal error process exited while connecting to monitor: open
> /dev/kvm: No such file or directory
> Could not initialize KVM, will disable KVM support
> PCI: devfn 24 not available for rtl8139, in use by virtio-blk-pci
> Error initializing device rtl8139
>
> I checked the differences in the libvirt XML between a virtio created
> VM and an IDE created vm and noticed the following:
>
> When I change IDE disk to VirtIO disk the only thing that is changed is:
>
> <target dev='hda' bus='ide'/>
> ->
> <target dev='hda' bus='virtio'/>
>
> What needs to be changed also is the controller for the disk
>
> IDE disk has:
>
> <address type='drive' controller='0' bus='0' unit='0'/>
>
> Virtio disk has:
>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
>
> When I change this line in the XML (after switching from IDE disk to
> VirtIO disk in LCMC) the error is gone and the VM works again, now
> with a virtIO disk.
>
> 3) Installing a Windows Vista/7/2008/R2 VM on VirtIO disk doesn't work
>
> I created a VM with two IDE CD-ROM's (iso's) and a VirtIO disk (LV)
>
> First CD-ROM is windows 2008 installer
> Second CD-ROM are the windows virtio drivers (for use during install)
>
> During install you will have to select which disk to install W2K8 to,
> and need to load VirtIO drivers to be able to see the disk (which
> works)
>
> BUT the installer keeps complaining it cannot install to the disk with
> this error:
>
> 'Windows cannot be installed to this disk. This computer's hardware
> may not support booting to this disk. Ensure the disk's controller is
> enabled in the computer's BIOS menu.'
>
> This can be fixed by adding the following to the Libvirt XML in the
> <os> section:
>
> Instead of only specifying
>
>     <boot dev='cdrom'/>
>
> It is needed to specify cdrom AND hd as next boot device:
>
>     <boot dev='cdrom'/>
>     <boot dev='hd'/>
>
> When the <boot dev='hd'/> line is added Windows Vista/7/2008/R2 can be
> installed to a VirtIO disk.
>
>
> Kind regards,
>
> Caspar
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> drbd-mc at lists.linbit.com
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-- 
Dipl.-Ing. Rastislav Levrinc
rasto.levrinc at gmail.com
Linux Cluster Management Console
http://lcmc.sf.net/


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