read only file system（急）解决思路

read only file system（急）
android模拟机上不能加文件提示read only file system 是什么问题啊 
mount -o remount ，rw /都试过了 ，没什么用额。


使用重新挂载还是无用
# mount -o remount,rw rootfs /system/
mount -o remount,rw rootfs /system/
# cd sdcard
cd sdcard
# mkdir a
mkdir a
mkdir failed for a, Read-only file system


查看mounts
# cat /proc/mounts
cat /proc/mounts
rootfs / rootfs ro 0 0
tmpfs /dev tmpfs rw,mode=755 0 0
devpts /dev/pts devpts rw,mode=600 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
none /acct cgroup rw,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,cpu 0 0
/dev/block/mtdblock0 /system yaffs2 rw 0 0
/dev/block/mtdblock1 /data yaffs2 rw,nosuid,nodev 0 0
/dev/block/mtdblock2 /cache yaffs2 rw,nosuid,nodev 0 0


查看文件权限
# ls -l
ls -l
dr-x------ root root 2012-05-31 03:12 config
drwxrwx--- system cache 2012-05-31 03:12 cache
lrwxrwxrwx root root 2012-05-31 03:12 sdcard -> /mnt/sdcard
drwxr-xr-x root root 2012-05-31 03:12 acct
drwxrwxr-x root system 2012-05-31 03:12 mnt
lrwxrwxrwx root root 2012-05-31 03:12 d -> /sys/kernel/debug
lrwxrwxrwx root root 2012-05-31 03:12 etc -> /system/etc
drwxr-xr-x root root 2010-06-30 21:06 system
drwxr-xr-x root root 1970-01-01 00:00 sys
drwxr-x--- root root 1970-01-01 00:00 sbin
dr-xr-xr-x root root 1970-01-01 00:00 proc
-rwxr-x--- root root 12995 1970-01-01 00:00 init.rc
-rwxr-x--- root root 1677 1970-01-01 00:00 init.goldfish.rc
-rwxr-x--- root root 107412 1970-01-01 00:00 init
-rw-r--r-- root root 118 1970-01-01 00:00 default.prop
drwxrwx--x system system 2012-05-31 03:13 data
drwx------ root root 2010-01-28 00:59 root
drwxr-xr-x root root 2012-05-31 03:13 dev

mout查看
# mount
mount
rootfs / rootfs ro 0 0
tmpfs /dev tmpfs rw,mode=755 0 0
devpts /dev/pts devpts rw,mode=600 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
none /acct cgroup rw,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,cpu 0 0
/dev/block/mtdblock0 /system yaffs2 rw 0 0
/dev/block/mtdblock1 /data yaffs2 rw,nosuid,nodev 0 0
/dev/block/mtdblock2 /cache yaffs2 rw,nosuid,nodev 0 0
# mount -o remount,rw -t yaffs2 /dev/block/mtdblock0 /system
mount -o remount,rw -t yaffs2 /dev/block/mtdblock0 /system
# exit
exit

push 还是失败
E:>adb push e:/WL_LX_12_TianPing.dxf /mnt/sdcard
failed to copy 'e:/WL_LX_12_TianPing.dxf' to '/mnt/sdcard/WL_LX_12_TianPing.dxf'
: Read-only file system


------解决方案--------------------
你说你mount -o remount ，rw /都试过了 ，没什么用额。 

adb mount 
mount / -o rw,remount
------解决方案--------------------
进入到命令行模式：
第一步：adb shell(进入adb命令)
第二步：su(超级权限)，可能要密码
第二步：adb remount
第三步：OK
------解决方案--------------------
切换到超级用户sudo -s
adb kill-server
adb reboot
adb remount