Indeed, if I do this: mount -t tmpfs -o-s=10m tmpfs /mnt2 mount -t union /mnt2 /dev mkdir /dev/mapper mknod /dev/mapper/control b 194 0 then: lvm lvcreate --name foo -L 4m vg0 works as expected. So having a writable /dev and ensuring the “control” exists, makes life much happier... |