On Fri, Dec 7, 2012 at 3:18 AM, Paul Pridt <p.pr...@chello.at> wrote:
> Hi,
> I am looking for a way to attach a physical CD drive or a USB-attached
> hard drive to a VM.
> I know that Citrix Xenserver does that through special udev-SRs. There you
> even can attach an internal hard drive with the help of an udev rule that
> creates the vdi.
> Has anybody a running solution?
> My system is Ubuntu 12.04 with xcp-xapi.
>
> --
> Regards,
> Paul
>
What is it exactly you're trying to accomplish? I'd start by checking
/etc/udev/rules.d/58-xapi.rules for events and check the scripts that it
runs.
*58-xapi.rules*
# Skip devices which fail the local sharing check (to filter out
root/mounted devices)
ACTION=="add", PROGRAM!="/opt/xensource/libexec/check-device-sharing %k",
GOTO="end_xapi"
ACTION=="add", SYMLINK+="xapi/block/%k"
ACTION=="add", RUN+="/bin/sh -c '/opt/xensource/libexec/local-device-change
%k 2>&1 >/dev/null&'"
ACTION=="remove", RUN+="/bin/sh -c
'/opt/xensource/libexec/local-device-change %k 2>&1 >/dev/null&'"
*Part of /opt/xensource/libexec/local-device-change*
for SR in `xe sr-list type=udev sm-config:type=block uuid=${LOCAL_SR}
params=uuid --minimal`
do
xe vdi-introduce uuid=`uuidgen` sr-uuid=${SR} type=user
location=/dev/xapi/block/${DEVICE}
done
Read the whole scripts of course but this might get you started.
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