Originally Posted by Ser Olmy
So you're saying you accidentally deleted the device nodes in /dev, but you did not actually delete the contents of the Volume Groups, nor did you modify the partitions containing the physical volumes?
Try running dmsetup mknodes and see if the missing device nodes reappear. You could also try restarting udevd, but the procedure for doing that varies depending on which distribution you're using.
Thank you very much for your response.
I have lvm partition in /dev/vg0/my-lv and its mapping in /dev/mapper/vg0-my-lv,
and my bad its do rm /dev/vg0/my-lv and rm /dev/mapper/vg0-my-lv.
and when i try to lvcreate using my-lv name, its can't.
I need help..