create /dev/block/env on x8-h with probox2-ex

[dedoz]

Hi, Iam new to this forums, I see you guys did a great work here. I have a problem and need some help. I just installed the PROBOX2-EX firmware on my x8-h. it works great. Iam just having an issue that after I enable the CEC and set the screen position and turn off the tv the settings I changed dont persist. so I have to set the CEC and the screen position every time I turn on the tv, which sucks.

looking at the logcat, i see the process systemcontrol is trying to read the setting from the /dev/block/env device and it fails because of a CRC error, the /dev/block/env on my device is empty, fdisk says no partition table.

has anyone came across similar issue? what the type of this device should be? can anyone share the details of the /dev/block/env from a probox device?

thank you

[dedoz]

Nevermind got it sorted out!

[bluesmanuk]

What was the resolution?

[dedoz]

What was the resolution?

I ended up patching the systemcontrol binary to bypass the CRC check. the systemcontrol then started to save the settings in the env partition. dirty fix, but works. why the uboot doesnt populate the env partition is a mystery to me.

btw, the screen position settings persist across reboots, but the CEC still goes off after the reboot, there seems to be another issue with CEC. Will try to look at it.

[bluesmanuk]

Thanks for sharing.

I'm sure that this may help others with the same issue in the future.

[mrdude]

I ended up patching the systemcontrol binary to bypass the CRC check. the systemcontrol then started to save the settings in the env partition. dirty fix, but works. why the uboot doesnt populate the env partition is a mystery to me.

btw, the screen position settings persist across reboots, but the CEC still goes off after the reboot, there seems to be another issue with CEC. Will try to look at it.

Can you post a link to your patched binary file please?

[dedoz]

Can you post a link to your patched binary file please?

attached! backup the original, just in case. remove the .txt extension.

[mrdude]

attached! backup the original, just in case. remove the .txt extension.

Thank you for the quick reply and posting the file, I am sure others will appreciate this as much as I do.

[dedoz]

Thank you for the quick reply and posting the file, I am sure others will appreciate this as much as I do.

No issue, enjoy!

[eac]

Thank you Sir! I'm the 1st one appreciating (after mrdude , of course)

[ruder1]

How can I copy systemcontrol file to the system directory? My ES file manager does not give access...
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thanks, done everything: with new systemcontrol the screen size is saved after the restart. Thanks again!

[mrdude]

How can I copy systemcontrol file to the system directory? My ES file manager does not give access...
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thanks, done everything

Use root explorer, when you try and copy it will ask if you want to set the folder to R/W mode - select yes, after you copy the file remember and set the file to the correct permission - octal 0644

[shwoDown]

Hello!
i tried this solution with last firmware PROBOX2-EX+-20161221.

I find systemcontrol file in system/bin. Copying the file on the rootet minix X8-H divice i killed my divice and had to install firmware again via usb BurningTool.
Whats going on here? What do you mean with *permission - octal 0644*? New permission for systemcontrol file?

Default permissions are:
System: 755
Bin: 755
systemcontrol: 755

Does this mean patched systemcontrol file gets the different permission 644?
Maybe the patched file doesn´t work with FW from 20161221 - patch is from august?


Thank´s for any help in this case - killed my device twice after copying the new file to system/bin with above permissions ...


regards
shwoDown.

[Dingydroid]

I used an old ES Explorer version (2.x without all the addware) to copy the systemcontrol file.
I could not overwrite. So I renamed the original systemcontrol to systemcontrolOrg en then copied the new/edited/downloaded one in system/bin.
The original systemcontrol file had the following permissions:
Permissions:
rwx r-x r-x (equal to 755) (0644 is equal to rw-r--r--)

https://forums.cpanel.net/threads/why-are-644-and-755-unix-permissions-ideal-for-files-directories-in-public-folders.136821/

owner: (read, write, execute)
root
group: (read, execute)
shell
other: (read, execute)

after the new systemcontrol file was copied I had to change:
Permissions - change - remove the write for Group and Other
Group: from Root to Shell

After the first reboot the screensize was not saved, but changing the screensize again and doing a reboot again the screensize was the size I set it to.

Thanks a lot for the great work!