Re: NetBSD DOMU Xen 4.2 xl lvm disk

[Mike <miguelmclara%gmail.com@localhost>]

On 07/12/2012 18:05, Roger Pau Monné wrote:
> On 07/12/12 18:37, Mike wrote:
> > On 07/12/2012 17:29, Roger Pau Monné wrote:
> > > On 07/12/12 16:42, Mike wrote:
> > > > On 07/12/2012 11:44, Mike wrote:
> > > > > On 07/12/2012 11:32, Roger Pau Monné wrote:
> > > > > > On 07/12/12 12:19, Mike wrote:
> > > > > > > On 07/12/2012 10:56, Roger Pau Monné wrote:
> > > > > > > > On 07/12/12 11:48, Mike wrote:
> > > > > > > > > I'm testing Xen 4.2, I've compiled successfully, following the
> > > > > > > > > guide at
> > > > > > > > > http://wiki.xen.org/wiki/Compiling_Xen_From_Source_on_NetBSD
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Since xend is now deprecated I was trying to use XL, but its seems
> > > > > > > > > its
> > > > > > > > > still not working for LVM devices?
> > > > > > > > >
> > > > > > > > > My config file:
> > > > > > > > >
> > > > > > > > > =========
> > > > > > > > > cat nbsd6.cfg
> > > > > > > > > name = "netBSD6"
> > > > > > > > >
> > > > > > > > > #kernel = "/home/miguelc/xen-data/kernels/netbsd-XEN3_DOMU.gz"
> > > > > > > > > kernel = "/home/miguelc/xen-data/kernels/netbsd-INSTALL_XEN3_DOMU.gz"
> > > > > > > > >
> > > > > > > > > memory = 1024
> > > > > > > > >
> > > > > > > > > disk = [ '/dev/mapper/vgXen-lvNBSD,,hda,rw',
> > > > > > > > I'm not sure if this syntax will work correctly, I think you are at
> > > > > > > > least missing the "phy:/" prefix, this line should look like:
> > > > > > > >
> > > > > > > > 'phy:/dev/mapper/vgXen-lvNBSD,xvda,w'
> > > > > > > >
> > > > > > > > > '/home/miguelc/xen-data/iso/NetBSD-6.0-amd64.iso,,hdc,cdrom'
> > > > > > > > And this:
> > > > > > > >
> > > > > > > > 'file:/home/miguelc/xen-data/iso/NetBSD-6.0-amd64.iso,xvdc:cdrom,r'
> > > > > > > >
> > > > > > > > There are many ways in which to specific block devices, take a look
> > > > > > > > at:
> > > > > > > >
> > > > > > > > http://xenbits.xen.org/docs/unstable/misc/xl-disk-configuration.txt
> > > > > > > "These might be specified in the domain config file like this:
> > > > > > >
> > > > > > >       disk = [ '/dev/vg/guest-volume,,hda',
> > > > > > > '/root/image.iso,,hdc,cdrom' ]"
> > > > > > >
> > > > > > > The syntax seams correct... I did use the instructions in that same
> > > > > > > link.
> > > > > > > My previous configuration (for xend) had the "phy:" and "file:" syntax
> > > > > > > and I got the same results with that!
> > > > > > >
> > > > > > > In any case changing the config:
> > > > > > > ....
> > > > > > >
> > > > > > > disk = [ 'phy:/dev/mapper/vgXen-lvNBSD,hda,w',
> > > > > > > 'file:/home/miguelc/xen-data/iso/NetBSD-6.0-amd64.iso,hdc,cdrom'
> > > > > > >             ]
> > > > > > >
> > > > > > > vif = [ 'mac=00:18:5e:5f:db:ee, bridge=bridge0' ]
> > > > > > >
> > > > > > > vcpus = 2
> > > > > > > ......
> > > > > > >
> > > > > > > I get the exact same result:
> > > > > > >
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > > xenbus: can't get state for device/suspend/event-channel (2)
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Also removing the lvm disk (with or without the "phy" syntax) boots the
> > > > > > > Guest machine into the install kernel has expected!
> > > > > > When you are in this state (DomU running, no install screen), could you
> > > > > > switch to the Dom0 and post the output of xenstore-ls -fp?
> > > > > >
> > > > > > Thanks
> > > > > Sure, I've attached it, since its a bit long :)
> > > > I also notice this on dmesg (dom0 ofc):
> > > >
> > > > xbdback backend/vbd/6/51712: can't DIOCGWEDGEINFO device 0xa902: 25
> > > I've used LVM volumes with 4.2 and xl without problems, this seems to be
> > > kernel-related, can you post your Dom0 kernel version?
> > # uname -rsvm
> > NetBSD 6.0 NetBSD 6.0 (XEN3_DOM0) amd64
> >
> > I'm using"netbsd-XEN3_DOM0.gz" downloaded from:
> > ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-6.0/amd64/binary/kernel/
> I will try to reproduce this localy. Just a random guess, but could you
> check if you have xenbackendd running?

# ps aux |grep xenba
root    1430  0.0  0.4 21052  1048 ?     Isl   7:29PM 0:00.00 
/usr/pkg/sbin/xenbackendd

Its running!