<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi, I'm having some problems with lvm + dmmapper on my own compiled 2.6.32.10 kernel, I'm not sure if the problem is with dmmapper or with my kernel, so i hope someone can help me or point me into the right direction. When I try to create a lvm volume i recieve the following error: bram-PC:~# lvcreate -L 10485760k -n test5-root xendomains device-mapper: table ioctl failed: No such device or address Aborting. Failed to activate new LV to wipe the start of it. Sometimes it works to create a lvm volume, but when i try to create a mapper on the device i recieve errors like this: bram-PC:~# echo "0 $( blockdev --getsize /dev/xendomains/test-root ) linear /dev/xendomains/test-root 0" | dmsetup create test-root-dm /dev/xendomains/test-root: No such file or directory Invalid format on line 1 of table on stdin Command failed and dmesg tells me: [29955.397572] device-mapper: ioctl: device doesn't appear to be in the dev hash table. The reason i build my own kernel is i want to run xen 4.0, my config is available on pastebin: <a href="http://pastebin.com/T6ntfKme">http://pastebin.com/T6ntfKme</a> I compiled dmmapper as a module or built-in i always have these errors. I know i don't have much info to post here cause i don't have any idea what you need to know, just ask and i'll post it :) Can someone help me to find a solution to this problem, or help me to build a bug report (if it's a bug ;) ) Kr, Bram </body></html>