[Hardware Hacking General] angrybb:
General Device Name: Samsung Galaxy ACE 2

Manufacturer Product Name: GT-I8160

Processor: ST-Ericsson NovaThor U8500

AOS version: Android GB 2.3.6

Radio FW version: XXLK6

System FW version: ???

Service Provider/ Branding: none

Country: Serbia

GNU Parted 2.3
Using mmcblk0.img
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: (file)
Disk mmcblk0.img: 3959MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number Start End Size File system Name Flags
10 524kB 1573kB 1049kB PIT
6 1573kB 3146kB 1573kB CSPSA FS
7 4194kB 14,7MB 10,5MB EFS
2 14,7MB 31,5MB 16,8MB ext4 Modem FS
14 32,5MB 34,6MB 2097kB SBL
16 34,6MB 36,7MB 2097kB SBL_2
1 36,7MB 53,5MB 16,8MB PARAM
12 53,5MB 55,6MB 2097kB IPL Modem
13 55,6MB 72,4MB 16,8MB Modem
15 72,4MB 89,1MB 16,8MB Kernel
17 89,1MB 106MB 16,8MB Kernel2
3 106MB 748MB 642MB ext4 SYSTEM
5 748MB 2056MB 1309MB ext4 DATAFS
4 2056MB 2377MB 321MB ext4 CACHEFS
9 2377MB 2713MB 336MB ext4 HIDDEN
11 2713MB 2765MB 52,4MB Fota
8 2765MB 3949MB 1184MB fat32 UMS

WARNING: GPT (GUID Partition Table) detected on 'mmcblk0.img'! The util fdisk doesn't support GPT. Use GNU Parted.

Disk mmcblk0.img: 3959 MB, 3959422976 bytes
1 heads, 63 sectors/track, 122749 cylinders, total 7733248 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
mmcblk0.img1 1 7733247 3866623+ ee GPT

GPT fdisk (gdisk) version 0.8.5

Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present

Found valid GPT with protective MBR; using GPT.

Command (? for help): p
Disk mmcblk0.img: 7733248 sectors, 3.7 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 52444E41-494F-2044-4D4D-43204449534B
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7733214
Partitions will be aligned on 1024-sector boundaries
Total free space is 25533 sectors (12.5 MiB)

Number Start (sector) End (sector) Size Code Name
1 71680 104447 16.0 MiB 0700 PARAM
2 28672 61439 16.0 MiB 0700 Modem FS
3 206848 1460223 612.0 MiB 0700 SYSTEM
4 4016128 4642815 306.0 MiB 0700 CACHEFS
5 1460224 4016127 1.2 GiB 0700 DATAFS
6 3072 6143 1.5 MiB 0700 CSPSA FS
7 8192 28671 10.0 MiB 0700 EFS
8 5400576 7712767 1.1 GiB 0700 UMS
9 4642816 5298175 320.0 MiB 0700 HIDDEN
10 1024 3071 1024.0 KiB 0700 PIT
11 5298176 5400575 50.0 MiB 0700 Fota
12 104448 108543 2.0 MiB 0700 IPL Modem
13 108544 141311 16.0 MiB 0700 Modem
14 63488 67583 2.0 MiB 0700 SBL
15 141312 174079 16.0 MiB 0700 Kernel
16 67584 71679 2.0 MiB 0700 SBL_2
17 174080 206847 16.0 MiB 0700 Kernel2

# mount
rootfs / rootfs rw 0 0
tmpfs /dev tmpfs rw,noatime,nodiratime,mode=755 0 0
devpts /dev/pts devpts rw,noatime,nodiratime,mode=600 0 0
proc /proc proc rw,noatime,nodiratime 0 0
sysfs /sys sysfs rw,noatime,nodiratime 0 0
none /sys/kernel/debug debugfs rw,noatime,nodiratime 0 0
none /acct cgroup rw,noatime,nodiratime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,noatime,nodiratime,mode=755,gid=1000 0 0
tmpfs /dev/shm tmpfs rw,noatime,nodiratime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,noatime,nodiratime,mode=755,gid=1000 0 0
/dev/block/mmcblk0p3 /system ext4 ro,noatime,nodiratime,barrier=1,data=ordered 0 0
/dev/block/mmcblk0p2 /modemfs ext4 rw,nosuid,nodev,noatime,nodiratime,barrier=1,data=ordered 0 0
/dev/block/mmcblk0p4 /cache ext4 rw,nosuid,nodev,noatime,nodiratime,barrier=1,data=ordered 0 0
/dev/block/mmcblk0p5 /data ext4 rw,nosuid,nodev,noatime,nodiratime,barrier=1,data=ordered,noauto_da_alloc 0 0
/dev/block/mmcblk0p1 /mnt/.lfs j4fs rw,noatime,nodiratime 0 0
/dev/block/vold/179:8 /mnt/sdcard vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/179:17 /mnt/sdcard/external_sd vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/179:17 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
tmpfs /mnt/sdcard/external_sd/.android_secure tmpfs ro,noatime,nodiratime,size=0k,mode=000 0 0

# busybox cat /proc/partitions
major minor #blocks name

179 0 3866624 mmcblk0
179 1 16384 mmcblk0p1
179 2 16384 mmcblk0p2
179 3 626688 mmcblk0p3
179 4 313344 mmcblk0p4
179 5 1277952 mmcblk0p5
179 6 1536 mmcblk0p6
179 7 10240 mmcblk0p7
179 8 1156096 mmcblk0p8
179 9 327680 mmcblk0p9
179 10 1024 mmcblk0p10
179 11 51200 mmcblk0p11
179 12 2048 mmcblk0p12
179 13 16384 mmcblk0p13
179 14 2048 mmcblk0p14
179 15 16384 mmcblk0p15
259 0 2048 mmcblk0p16
259 1 16384 mmcblk0p17
252 0 98304 zram0
179 16 8076288 mmcblk1
179 17 8075264 mmcblk1p1

dmesg:

pastebin.com/GN7Z0TyE