SamyGO

Posted: **Fri Jun 10, 2011 3:14 pm**

zibri2 wrote:You should install a full busybox.

i have to install full busy box on my tv? how?
is possible to backup partitions with the command cp?

Posted: **Fri Jun 10, 2011 3:28 pm**

you can use command cat, it makes stl backup as good as other tools does. Sure, it does not copy block by block, but i use this command and didn`t have any problem.

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cat /dev/stl0/12 > /dtv/usb/sda1/stl12_dump

Posted: **Fri Jun 10, 2011 5:31 pm**

juuso wrote:you can use command cat, it makes stl backup as good as other tools does. Sure, it does not copy block by block, but i use this command and didn`t have any problem.
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cat /dev/stl0/12 > /dtv/usb/sda1/stl12_dump

Thanks for your reply but with this command i obtain file without extension and i can't extract the files inside.
I want to backup my tv partitions to explore them on my pc.
because i downgrade the fw and now i don't know wich alternative firmware there is in hidden partition and i want to find what version i have in that partition.
I know that there are 2 partitions on my tv with fw in it one is the current fw that run the tv and other is i think hidden partitions with alternative fw in it.
First i have fw version 3008.3 in my tv but i upgrade to 3009.3
then i downgrade via usb and i flash the 3008.3 fw
and now i don't know what fw i have in alternative fw partitions.
when i flash a fw from usb the fw is written in the same partition or not??
I'm confused

Posted: **Fri Jun 10, 2011 6:52 pm**

To know what version do you have on partition, you can mount it to temp directory and search for strings:
For example:
If your alternative partition is /dev/stl0/17
1. Create tmp dir

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mkdir /mtd_swu/tmp

2. Mount your alternative partition to it:

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mount -t squashfs  /dev/stl0/17 /mtd_swu/tmp/

If you get error, you can try this:

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mount -t auto /dev/stl0/17 /mtd_swu/tmp/

3. Search for T-VALDEUC- :

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cat $(find /tmp/stl17) | grep T-VALDEUC-

It works on B series:

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# cat $(find /mtd_swu/tmp) | grep T-CHL7DEUC-
cat: Read Error: Is a directory
cat: Read Error: Is a directory
cat: Read Error: Is a directory
cat: Read Error: Is a directory
T-CHL7DEUC-2004.1
[2] + Stopped                    cat $(...) | grep T-CHL7DEUC-
#

You see - here are some errors while reading directories. After you get your version, press Ctrl+z to interrupt process. Done

Posted: **Sat Jun 11, 2011 12:31 pm**

Thanks thanks thanks i try you procedure... but i don't find the version
this is what i get

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/mtd_swu # mount -t squashfs  /dev/stl0/17 /mtd_swu/tmp/
mount: mounting /dev/stl0/17 on /mtd_swu/tmp/ failed
/mtd_swu # mount -t auto /dev/stl0/17 /mtd_swu/tmp/
/mtd_swu # cat $(find /tmp/stl17) | grep T-VALDEUC-
find: /tmp/stl17: No such file or directory
[1]+  Stopped                    cat $(...) | grep T-VALDEUC-
/mtd_swu # # cat $(find /mtd_swu/tmp) | grep T-VALDEUC_[J-
/mtd_swu # cd tmp
/mtd_swu/tmp # ls -a
$rfs_log.lo$  exedsp~1      lifesc~1      rcloca~2.rfs  value.bin
.             factor~1.dat  memalloc      rc~1.loc      wifi_lib
..            factor~2.dat  moip          releas~1      ywidge~1
comp_l~1      game_lib      otpcheck.sh   ruic
ddr_ma~1      infoli~1      partit~1.txt  samdrv.ko
edid          java~1        prelin~1.cac  specia~1.txt
exe_im~1      lib           prelin~2.con  stagec~1
/mtd_swu/tmp # cd ..
/mtd_swu # cd ..
~ # mount
rootfs on / type rootfs (rw)
/dev/root on / type squashfs (ro)
none on /proc type proc (rw)
none on /sys type sysfs (rw)
none on /dev/sam type tmpfs (rw)
none on /dtv type tmpfs (rw)
none on /dsm type tmpfs (rw)
none on /core type tmpfs (rw)
none on /tmp type tmpfs (rw)
/dev/stl0/14 on /mtd_rwarea type rfs (rw,codepage=utf8,vfat,fcache(blks)=128)
/dev/stl0/19 on /mtd_rocommon type squashfs (ro)
/dev/stl0/15 on /mtd_exe type rfs (ro,codepage=cp949,vfat,fcache(blks)=128)
/dev/stl0/16 on /mtd_appdata type squashfs (ro)
/dev/stl0/13 on /mtd_contents type rfs (rw,codepage=utf8,vfat,fcache(blks)=128)
/dev/stl0/20 on /mtd_swu type rfs (rw,codepage=cp949,vfat,fcache(blks)=128)
/dev/stl0/21 on /mtd_rwcommon type rfs (rw,codepage=utf8,vfat,fcache(blks)=128)
none on /proc/bus/usb type usbfs (rw)
devpts on /dev/pts type devpts (rw)
/dev/sda1 on /dtv/usb/sda1 type xfs (rw,nouuid,noquota)
/dev/stl0/17 on /mtd_swu/tmp type msdos (rw,fmask=0022,dmask=0022,codepage=cp437)
/dev/sdb1 on /dtv/usb/sdb1 type vfat (rw,sync,fmask=0022,dmask=0022,codepage=cp437,iocharset=utf8,shortname=mixed)
~ # cp -r /mtd_swu/tmp/ Dtv[J[J[Jdtv/usb/sdb1/tnp[J[Jmp

I don't know if alternative partition is number 17 so i write here the partitions.txt that i found on tv.

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partitionID	flash_device_name	flash_device_size	flash_image_name	flash_device_type	flash_upgrade_type	flash_partition_map	flash_mount_path	default_block_size	flash_format_option	flash_mount_option
0	/dev/bml0/1	262144	onboot.bin	DEVICE	OTHER	BOOTLOADER0	NONE	262144	NONE	NONE
1	/dev/bml0/2	262144	u-boot.bin	BML	OTHER	BOOTLOADER1	NONE	262144	NONE	NONE
2	/dev/bml0/3	262144	uboot_env.bin	BML	OTHER	BOOTLOADER2	NONE	262144	NONE	NONE
3	/dev/bml0/4	262144	fnw.bin	BML	OTHER	BOOTLOADER3	NONE	262144	NONE	NONE
4	/dev/bml0/5	4194304	Image	BML	USER	KERNEL0	NONE	262144	NONE	NONE
5	/dev/bml0/6	3670016	rootfs.img	BML	USER	RFS0	NONE	262144	NONE	NONE
6	/dev/bml0/7	4194304	Image	BML	USER	KERNEL1	NONE	262144	NONE	NONE
7	/dev/bml0/8	3670016	rootfs.img	BML	USER	RFS1	NONE	262144	NONE	NONE
8	/dev/bml0/9	262144	NONE	BML	OTHER	SECUREMAC0	NONE	262144	NONE	NONE
9	/dev/bml0/10	262144	NONE	BML	OTHER	SECUREMAC1	NONE	262144	NONE	NONE
10	/dev/bml0/11	262144	key.bin	BML	OTHER	SECUREMAC2	NONE	262144	NONE	NONE
11	/dev/bml0/12	262144	NONE	BML	OTHER	NONE	NONE	262144	NONE	NONE
12	/dev/stl0/13	11272192	NONE	STL	OTHER	NONE	/mtd_contents	4096	ERASE:,STL:-r_7,FAT:-S_1024_-s_1	-t_rfs_-o_codepage=utf8
13	/dev/stl0/14	26214400	NONE	STL	OTHER	NONE	/mtd_rwarea	4096	ERASE:,STL:-r_7,FAT:-S_1024_-s_1	-t_rfs_-o_codepage=utf8
14	/dev/stl0/15	93323264	exe.img	STL	USER	EXE0	/mtd_exe	4096	ERASE:,STL:-r_2	NONE
15	/dev/stl0/16	58195968	appdata.img	STL	USER	APP_DATA0	/mtd_appdata	4096	ERASE:,STL:-r_2	NONE
16	/dev/stl0/17	93323264	exe.img	STL	USER	EXE1	/mtd_exe	4096	ERASE:,STL:-r_2	NONE
17	/dev/stl0/18	58195968	appdata.img	STL	USER	APP_DATA1	/mtd_appdata	4096	ERASE:,STL:-r_2	NONE
18	/dev/stl0/19	52953088	rocommon.img	STL	OTHER	CONTENT0	/mtd_rocommon	4096	ERASE:,STL:-r_2	NONE
19	/dev/stl0/20	104857600	NONE	STL	OTHER	NONE	/mtd_swu	4096	ERASE:,STL:-r_16,FAT:-S_4096_-s_4	-t_rfs
20	/dev/stl0/21	411566080	NONE	STL	OTHER	NONE	/mtd_rwcommon	4096	FAT:-S_4096_-s_1	-t_rfs_-o_codepage=utf8

can you help me please?
Maybe i've to wait that the command stop it work?
Sorry for my questions but i ask because you are a guru of this things and in the wiki there aren't the info that i need.
Is there another place where i can found info about the hotel mode hack?
THANKS.

Posted: **Sat Jun 11, 2011 1:18 pm**

Please, use tags for text formatting.

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 [quote] et cetera.

Make dump with cat, open it with hex (you do not need any file extension for that. or you can rename it to have *.img if you want - doesn`t matter. I do not know exactly, is there squash or rfs image. The first one you can mount -o loop, the second is easy to open in winhex.

Posted: **Sat Jun 11, 2011 2:56 pm**

juuso wrote:Please, use tags for text formatting.

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 [quote] et cetera.

Make dump with cat, open it with hex (you do not need any file extension for that. or you can rename it to have *.img if you want - doesn`t matter. I do not know exactly, is there squash or rfs image. The first one you can mount -o loop, the second is easy to open in winhex.[/quote][/quote]

Finally i've done  :) 
/dev/stl0/15   > fw T-Valdeuc 3008.3 current fw  > Version.0
/dev/stl0/17   > fw T-Valdeuc 3009.2 alternative fw

So if i write the file Version.1 (now is missing in my tv) the alternative fw menu will be enabled and if i select alternative fw my tv switch off and switch on with the fw 3009.2 right?

if i ONLY rename the file Version.0 to Version.1 did i brick my tv or not?

THANKS juuso.  :D

Posted: **Sat Jun 11, 2011 3:16 pm**

create missing version file and switch to alternative firmware over menu.

SamyGO

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