hello,everyone! I make a liveCD,and used grub2. I boot livecd ,and I found a problem.I executed "grub2-install /dev/sda" failure.and reported follwing error: # grub2-install /dev/sda grub-probe: error: no mapping exists for `live-rw' Auto-detection of a filesystem module failed. Please specify the module with the option `--modules' explicitly.
why need to detecting livecd root? I executed "/usr/sbin/grub2-setup --directory=/boot/grub2 --device-map=/boot/grub2/device.map /dev/sda" ,also reported as some error. # /usr/sbin/grub2-setup --directory=/boot/grub2 --device-map=/boot/grub2/device.map /dev/sda grub-setup: error: no mapping exists for `live-rw' df -h command results: # df Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/live-rw 3096336 2004408 1060512 66% / tmpfs 516844 88 516756 1% /dev/shm /dev/sr0 659160 659160 0 100% /mnt/live varcacheyum 516844 0 516844 0% /var/cache/yum /tmp 516844 12 516832 1% /tmp vartmp 516844 0 516844 0% /var/tmp who can help me? how should I do it? thanks very much! -- 知其然，不知其所以然！
