Linux系统挂载存储变成只读的解决方案： 1、mount: 用于查看哪个模块输入只读，一般显示为： [root@localhost ~]# mount /dev/cciss/c0d0p2 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/cciss/c0d0p7 on /home type ext3 (rw) /dev/cciss/c0d0p6 on /var type ext3 (rw) /dev/cciss/c0d0p3 on /usr type ext3 (rw) /dev/cciss/c0d0p1 on /boot type ext3 (rw) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) /dev/dm-0 on /home/book/upload/BookFile1 type ext3 (rw) /dev/dm-1 on /home/book/upload/BookFile2 type ext3 (rw) /dev/dm-2 on /backup type ext3 (rw) /dev/dm-3 on /home/book/upload/BookFile3 type ext3 (ro) 2、如果发现有ro，就重新mount，或者umount以后再remount 3、umount /dev/dm-3 如果发现有提示“device is busy”，找到是什么进程使得他busy fuser -m /mnt/data 将会显示使用这个模块的pid fuser -mk /mnt/data 将会直接kill那个pid 然后重新mount即可。 4、还有一种方法是直接remount，命令为 mount -o rw,remount /mnt/data。
