Ubuntu下U盘变成只读的解决方法.doc

精品文档Ubuntu下U盘变成只读的解决方法linux的故障误造成只读（现象及办法） 排查步骤：查看挂载的格式是否正确$mount/dev/sdc1 on / type ext4 (rw,errors=remount-ro)proc on /proc type proc (rw,noexec,nosuid,nodev)none on /sys type sysfs (rw,noexec,nosuid,nodev)none on /sys/fs/fuse/connections type fusectl (rw)none on /sys/kernel/debug type debugfs (rw)none on /sys/kernel/security type securityfs (rw)none on /dev type devtmpfs (rw,mode=0755)none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)none on /dev/shm type tmpfs (rw,nosuid,nodev)none on /var/run type tmpfs (rw,nosuid,mode=0755)none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)/dev/sdc6 on /home type ext4 (rw)/dev/sda1 on /home/bl/dbf type ext3 (rw)none on /proc/fs/vmblock/mountPoint type vmblock (rw)binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)/dev/sdb1 on /media/3AAA-893C type vfat (rw,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,flush)蓝色部分是U盘挂载项，属性看着没有什么异常$sudo mount -o remount,rw /dev/sdb1仍未解决问题fsck检查U盘数据$sudo umount /media/3AAA-893C/$sudo fsck /dev/sdb1fsck from util-linux-ng 2.17.2dosfsck 3.0.7, 24 Dec 2009, FAT32, LFNThere are differences between boot sector and its backup.Differences: (offset:original/backup) 65:01/001) Copy original to backup2) Copy backup to original3) No action? 2Reclaimed 153 unused clusters (5013504 bytes).Free cluster summary wrong (242445 vs. really 242751)1) Correct2) Dont correct? 1Leaving file system unchanged./dev/sdb1: 49 files, 1474/244225 clusters发现磁盘错误，修复后U盘能够正常使用，找出头两天坏的U盘，用同样的办法也发现了磁盘错误，修复后解决问题。总结： 原来使用一直没有出现问题，最近出现问题都是我的vmware虚拟机和ubuntu Host主机之间交叉使用U盘造成的现象，怀疑vmware player 3.1.0 build-261024 和ubuntu 10.04之间有兼容问题（用360查毒未发现xp虚