It filters out all the possible devices, resulting in almost all operations failing (maybe all, I haven't checked that far). Introduced by c929a0b3c8c1cd4a32458b5db0aa3d221a949aad My opinion is that there is no need for the check that commit adds, It can only break things (when the range of valid block devices changes). For reference, the relavent portion of my /proc/devices: Character devices: 1 mem 4 /dev/vc/0 4 tty ... 251 macvtap 252 kcopy 253 bsg 254 rtc Block devices: -1 smblk 1 ramdisk 256 rfd 257 ssfdc 259 blkext 7 loop ... -- Cody _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/