[Help me!] Internal sd can't mount, unable to flash new rom via adb sideload

Couple months ago, I tried to flash Android 6.0 on my S2 i9100 but it only recognized the first partition (2gb ) but the rest 14gb no. [ Sure, I did wipe cache partition, dalvik cache, data ]

So, I did some format with adb shell ( I deleted FactoryFS, Data, UMS partitions and change the format type to Fat32) and copied to internal storage. When I install it ( it takes like 3-5 minutes) and get this error
|Warning: No file_contextsdetected filesysstem ext4 for /dev/block/mmcblk0p9
| mount: failed to mount /dev/block/mmcblk0p9 at /system: Device or resource busy
| detected filesystem ext4 for /dev/block/mmcblk0p9 It stuck here for a while
ApplyParsedPerms: lsetfilecon of /system/lost+found to u:object_r: system_file: s0 failed: Operation on not supported on transport endpoint
set_metadata_recursive: some changes failed
E: Error in /emmc/cm12.... (status 7)
Installation aborted
press any key to continue.

After that, I tried again with Odin, I used Stock PIT and 12gb PIT ver to install Rom, still get the error above. Even when I use Odin to flash new Rom, Odin get stopped working.

[ I have tried many versions of CWM, Philz, TWRP,... but still Can't mount /sdcard ]
So how can I fix this problem?


Thanks for reading and helping me. Also sorry for my bad English.

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