mke2fs android block device
Android也可以format filesystem
用df看有哪些filesystem
$ ./adb shell
~ # df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 415204 48 415156 0% /dev
/dev/block/mmcblk0p7 201568 4228 197340 2% /cache
/dev/block/mmcblk0p10 13574488 33668 12851260 0% /data
/dev/block/mmcblk1p1 15631532 13720164 1911368 88% /external_sd
/dev/block/mmcblk0p9 838552 116812 721740 14% /system
針對某個filesystem format
# mke2fs /dev/block/mmcblk0p10
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
863264 inodes, 3447808 blocks
172390 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=3531603968
106 block groups
32768 blocks per group, 32768 fragments per group
8144 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208
Writing inode tables: done
Writing superblocks and filesystem accounting information: done
done
This filesystem will be automatically checked every 32 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
這次是遇到Galaxy Tab 7.7在wipe data/factory時候會一直重開機(就陷入重開機循環＠＠)
檢查一下mount point /data下面的資料
最近安裝的一個程式是一個不安全的apk檔案
不確定是否是它造成
但是只要想要rm這個/data/data/xxx資料匣就有問題(reboot loop...)
試過更換recovery也無法wipe他
甚至把/data所在的dev更換掉也沒用(cp /dev/block/mmcblk0p7 /dev/block/mmcblk0p10)
用dd拷貝mmcblk0p7給mmcblk0p10也沒用
輾轉之下....
找了這個solution....
直接重mke2fs mmcblk0p10...成功！！