What is udev version on F14 ? Boris. --- On Wed, 9/1/10, W. Michael Petullo <mike(a)flyn.org&gt; wrote: From: W. Michael Petullo <mike(a)flyn.org&gt; Subject: [Fedora-xen] Xen Dom0 and Fedora 14 To: xen(a)lists.fedoraproject.org Date: Wednesday, September 1, 2010, 2:42 PM I have been investigating the use of Xen with a Fedora 14 (devel)-based Dom0. Until now, I have always used Michael Young's Dom0 kernels. The first thing I did was try to build the current Fedora 14 kernel with Xen Dom0 support. I began porting Michael's RPM specification to the Fedora 14 specification. What I found was that the Xen pvops work seems to be targeting 2.6.32 and possibly 2.6.36. As a result, I was unable to find a straightforward way to create a patch for 2.6.35.4. Am I missing something here? Is building a 2.6.35.4-based kernel difficult in this way? Next, I tried to use Michael's latest Fedora 12 kernel on Fedora 14. Of course, Fedora 14 uses some features that are not available in this kernel. Most notably, I had to provide the kernel with the "init=/sbin/upstart" option to avoid the use of systemd. Once I booted the system, I found that xend would not start because it did not find what it expected in /sys/bus/pci/devices/0000\:00\:03.2/config: [...]   File "/usr/lib/python2.7/site-packages/xen/util/pci.py", line 1050, in detect_dev_info     pos = self.find_cap_offset(PCI_CAP_ID_EXP)   File "/usr/lib/python2.7/site-packages/xen/util/pci.py", line 933, in find_cap_offset     id = ord(os.read(fd, 1)) TypeError: ord() expected a character, but string of length 0 found I "fixed" this by editing pci.py and changing: id = ord(os.read(fd, 1)) to: try:     id = ord(os.read(fd, 1)) except:     pos = 0     break; Of course, this might not be a good fix, but it was quick and it allowed me to continue and experiment. Does anyone know what is going on here? At this point, I was able to boot a DomU image, although I need to do a lot more testing. Has anyone else experimented with Fedora 14? What is your experience? I am especially interested in hearing about Fedora 14 Dom0 kernels. -- Mike :wq -- xen mailing list xen(a)lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/xen

On Wed, 1 Sep 2010, W. Michael Petullo wrote: Yes, that is one reason why I am still tracking Fedora 12, as it is considerably easier than the other options. The other reason is it is (up until now at least) where the main development is. When development shifts to 2.6.36 (which is the current plan) I will probably start building rawhide kernels. Yes, now that I try it I get the error failed to mount /sys/fs/cgroup: No such file or directory It looks like this /sys mount was introduced in 2.6.33. I don't see that - though it may depend on your hardware or which xen version you are using. xend works for me, though one of my keyboards doesn't work, it seems due to some apparently IRQ related problem. Michael Young