Been down that road as well. The problem here is that not all of the OS's I'm playing with have a xenified kernel. I had seen this article before though. I haven't tested it as of yet. The problem is the destination machine for some of these VM's isn't VT enabled. > -----Original Message----- > From: Sadique Puthen [mailto:xenguy@xxxxxxxxx] > Sent: Tuesday, January 16, 2007 3:09 AM > To: Gary W. Smith > Cc: fedora-xen@xxxxxxxxxx > Subject: Re: DomU problem with tap:aio and xvdN. > > Gary W. Smith wrote: > > Sadique, > > > > Can you explain how to do this in each environment? > > One example: > > http://people.redhat.com/riel/RHEL4-Xen-HOWTO > > > I've been down that > > road with limited success as grub worked different in each environment. > > Installing grub usually requires me to hack quick a bit of stuff. > > > > OTOH the people on the xen-users@xxxxxxxxxxxxxxxxxxx said just the > > opposite when I was looking for help getting the kernel to boot using > > grub (/usr/bin/pygrub). > > > > As for the modified kernels per OS I've been having bad luck with > > getting things like FC4 working under 3.0.4. > > > > > > > > > >> -----Original Message----- > >> From: Sadique Puthen [mailto:xenguy@xxxxxxxxx] > >> Sent: Monday, January 15, 2007 9:35 PM > >> To: Gary W. Smith > >> Cc: fedora-xen@xxxxxxxxxx > >> Subject: Re: DomU problem with tap:aio and xvdN. > >> > >> Gary W. Smith wrote: > >> > >>> Hello, > >>> > >>> In a nutshell, I can't get DomU's to work with xvdN and tap:aio > >>> > > under > > > >>> FC6.2869. I have also tried to get them to work with XenSource > >>> > > 3.0.4. > > > >>> I've been asking this in the xen-users group but I haven't had any > >>> positive response. I have the following DomU's that I'm testing > >>> > > with: > > > >>> FC4/5/6, CentOS4. In general, they all seem to have the same > >>> > > problems. > > > >>> The problem is that when I reference the FC6 Xen boot kernel in the > >>> kernel config line for the DomU it kernel panics. I have copied > >>> /lib/modules/* (FC6 and XenSource) to the DomU as well for testing. > >>> > > If > > > >>> I do sdN and file it all works fine, but only for XenSource kernel. > >>> > >>> At the Dom0 level we are booting to FC.2869 and only referencing the > >>> XenSource 3.0.4 images at the DomU config file level. > >>> > >>> Am I missing something fundamental? I have also ran into this > >>> > > problem > > > >>> with the jailtime.org images as well. > >>> > >>> FC6 kernel: > >>> (kernel = '/boot/vmlinuz-2.6.18-1.2869.fc6xen') > >>> > >>> XENBUS: Device with no driver: device/vbd/51713 > >>> XENBUS: Device with no driver: device/vbd/51714 > >>> XENBUS: Device with no driver: device/vif/0 > >>> md: Autodetecting RAID arrays. > >>> md: autorun ... > >>> md: ... autorun DONE. > >>> VFS: Cannot open root device "xvda1" or unknown-block(0,0) > >>> Please append a correct "root=" boot option > >>> Kernel panic - not syncing: VFS: Unable to mount root fs on > >>> unknown-block(0,0) > >>> > >>> XenSource 3.0.4 kernel: > >>> (kernel = '/xen/xen-3.0.4/boot/vmlinuz-2.6-xen') > >>> > >>> md: Autodetecting RAID arrays. > >>> md: autorun ... > >>> md: ... autorun DONE. > >>> WARNING: g.e. still in use! > >>> WARNING: leaking g.e. and page still in use! > >>> end_request: I/O error, dev xvda1, sector 2 > >>> EXT2-fs: unable to read superblock > >>> Kernel panic - not syncing: VFS: Unable to mount root fs on > >>> unknown-block(202,1) > >>> > >>> > >>> Overall config file: > >>> > >>> name = 'fedora4' > >>> memory = '256' > >>> disk = [ 'file:/xen-build/fedora4/xen-D0.img,xvda1,w' , > >>> 'file:/xen-build/fedora4/xen-swap.img,xvda2,w' ] > >>> #disk = [ > >>> > >>> > > 'tap:aio:/xen-build/fedora4/xen-D0.img,xvda1,w','tap:aio:/xen-build/fedo > > > >>> ra4/xen-swap.img,xvda2,w' ] > >>> root = '/dev/xvda1 ro' > >>> vif = [ 'mac=00:16:e6:CD:49:5B' ] > >>> kernel = '/xen/xen-3.0.4/boot/vmlinuz-2.6-xen' > >>> > >>> > >> Why don't use bootloader = "/usr/bin/pygrub" and load a modified > >> > > kernel > > > >> from domU itself? > >> > >>> #kernel = '/boot/vmlinuz-2.6.18-1.2869.fc6xen' > >>> on_reboot = 'restart' > >>> on_crash = 'restart' > >>> extras = 'console=xvc0' > >>> > >>> > >>> > >>> -- > >>> Fedora-xen mailing list > >>> Fedora-xen@xxxxxxxxxx > >>> https://www.redhat.com/mailman/listinfo/fedora-xen > >>> > >>> > >>> > > > > > > -- Fedora-xen mailing list Fedora-xen@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-xen
