Re: [Xen-users] Fedora guest not detecting virtual disk

[WebDawg <webdawg@xxxxxxxxx>]

It has been a real long time since I used XenCenter.  Are you using
the windows official version, is it up to date?  What version of
XenServer are you using?

I think if I remember correctly you had to attach the disk and then
activate it in the GUI interface, or I could be thinking of taking the
disk out...I would have to deactivate, and then unplug.

Also it should pop up as an xvdX device...and most of the time it pops
up as root, so make sure to check as root.

I have not used fedora in a long time, I do not know how it would set
the permissions of a xen device on hotplug.

I would think this does not matter much, but did you install Fedora in
paravirtualization mode?  When you selected a template, did you select
fedora or Other?

Try an install w/ other and get into full HVM mode...most linux now a
days has pv hvm stuff built in so...

Last time I used it, it seemed to work great though.

Can you try https://xen-orchestra.com/ and see if you have the same issue?

Sorry I cannot be of anymore help.

Your best bet at this point is to find the logs
(https://xenserver.org/partners/developing-products-for-xenserver/20-dev-hints/90-xs-log-debug-understand.html)
that would output the messages that have to do with what you are
doing.

I would look into the logs:

ssh into the box ssh xenserver.domain -lroot

cd /var/log

tail -f xensource.log

Then try and attach the disk and see what happens.

If you take a look at xen-orchestra it can do all the software
patching for xenserver too for you, you may need a patch or something.



On Mon, Aug 7, 2017 at 1:27 PM, Julian DeMille
<julian.demille@xxxxxxxxxxxxxxx> wrote:
> It's a Fedora 25 VM, a couple months old. I'm using XenServer and XenCenter
> to attach the disk.
>
> On Mon, Aug 7, 2017 at 13:22 WebDawg <webdawg@xxxxxxxxx> wrote:
>>
>> How old is the fedora vm, what software are you using to attach?  Command
>> line?
>>
>> Is this xen?  XenServer?
>>
>> What version of Xen?
>>
>> On Sat, Aug 5, 2017 at 2:12 PM, Julian DeMille
>> <julian.demille@xxxxxxxxxxxxxxx> wrote:
>> > I am adding it to the VM. What confuses me is that an Ubuntu live ISO
>> > guest
>> > can read the disk just fine. Is it some weird driver issue?
>> >
>> > On Sat, Aug 5, 2017 at 2:10 PM, WebDawg <webdawg@xxxxxxxxx> wrote:
>> >>
>> >> How are you attaching the disk?
>> >>
>> >> On Aug 5, 2017 12:38 PM, "Julian DeMille"
>> >> <julian.demille@xxxxxxxxxxxxxxx>
>> >> wrote:
>> >>>
>> >>> After I migrated a Fedora VM from vSphere to Xen, the VM stopped
>> >>> recognizing any disks I attach to it. When in the Dracut recovery
>> >>> terminal,
>> >>> there are no signs of virtual disks on the VM. No xvd*, no sd*, only
>> >>> sr0.
>> >>> How can I troubleshoot this?
>> >>>
>> >>> _______________________________________________
>> >>> Xen-users mailing list
>> >>> Xen-users@xxxxxxxxxxxxx
>> >>> https://lists.xen.org/xen-users
>> >
>> >
>> >
>> >
>> > --
>> > Julian DeMille
>> >
>> > CEO, demilleTech Flight Simulations, LLC.
>> >
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> --
> Julian DeMille
>
> CEO, demilleTech Flight Simulations, LLC.
>
> This email and any files transmitted with it are confidential and intended
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