Re: [Xen-devel] block-iscsi with Xen 4.5 / 4.6

[Steven Haigh <netwiz@xxxxxxxxx>]

On 2016-04-15 18:03, Roger Pau Monné wrote:
> On Fri, Apr 15, 2016 at 05:48:24PM +1000, Steven Haigh wrote:
> > On 2016-04-15 17:46, Roger Pau Monné wrote:
> > > On Fri, Apr 15, 2016 at 05:28:12PM +1000, Steven Haigh wrote:
> > > > On 2016-04-15 17:23, Roger Pau Monné wrote:
> > > > > On Fri, Apr 15, 2016 at 04:59:11PM +1000, Steven Haigh wrote:
> > > > > > Hi all,
> > > > > >
> > > > > > I'm wading through the somewhat confusing world of documentation
> > > > > > regarding
> > > > > > storing DomU disk images on an iSCSI target.
> > > > > >
> > > > > > I'm getting an error when using pygrub of:
> > > > > > OSError: [Errno 2] No such file or directory: 
> > 'iqn=iqn.1986-03.com.sun:02:ff2d12c0-b709-4ec0-999d-976506c666f5,portal=192.168.133.250'
> > > > >
> > > > > Hello,
> > > > >
> > > > > It should work. Can you please paste your guest configuration file and
> > > > > the
> > > > > output of the create command with "-vvv"?
> > > >
> > > > DomU config file:
> > > > bootloader      = "pygrub"
> > > > name            = "test1.vm"
> > > > memory          = 2048
> > > > vcpus           = 2
> > > > cpus            = "1-7"
> > > > vif             = ['bridge=br-151, vifname=vm.test1']
> > > > disk            = 
> > ['script=block-iscsi,vdev=xvda,target=iqn=iqn.1986-03.com.sun:02:ff2d12c0-b709-4ec0-999d-976506c666f5,portal=192.168.133.250']
> > > > boot            = "c"
> > > >
> > > > # xl create /etc/xen/test1.vm -d -c
> > >
> > > Please post the output of xl -vvv create /etc/xen/test1.vm.
> >
> > Whoops - apologies:
> >
> > # xl -vvv create /etc/xen/test1.vm
> > Parsing config from /etc/xen/test1.vm
> > libxl: debug: libxl_create.c:1507:do_domain_create: ao 0x20b7260: 
> > create:
> > how=(nil) callback=(nil) poller=0x20b6b30
> > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > vdev=xvda spec.backend=unknown
> > libxl: debug: libxl_device.c:207:disk_try_backend: Disk vdev=xvda, 
> > uses
> > script=... assuming phy backend
> > libxl: debug: libxl_device.c:298:libxl__device_disk_set_backend: Disk
> > vdev=xvda, using backend phy
> > libxl: debug: libxl_create.c:907:initiate_domain_create: running 
> > bootloader
> > libxl: debug: libxl_device.c:269:libxl__device_disk_set_backend: Disk
> > vdev=(null) spec.backend=phy
> > libxl: debug: libxl_device.c:207:disk_try_backend: Disk vdev=(null), 
> > uses
> > script=... assuming phy backend
> > libxl: debug: libxl.c:3064:libxl__device_disk_local_initiate_attach: 
> > locally
> > attaching PHY disk 
> > iqn=iqn.1986-03.com.sun:02:ff2d12c0-b709-4ec0-999d-976506c666f5,portal=192.168.133.250
> Now I remember, this was fixed not long ago, you will need to apply
> b1882a424ae098d722b19086b16e64b9aeccc7ca to your source tree/package in
> order to get pygrub working with hotplug scripts [0].
>
> I guess you are using Xen 4.5, because this commit is already present 
> in Xen
> 4.6, and it should fix your issue.
>
> [0]
> http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=b1882a424ae098d722b19086b16e64b9aeccc7ca
Ahhh - thanks for the pointer. As this is a dev system, its probably 
easier for me to upgrade it to Xen 4.6 - however I'll take that commit 
and look at adding it to my Xen 4.5 packages for public consumption.
--
Steven Haigh

Email: netwiz@xxxxxxxxx
Web: https://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897

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