Trying to Re-Enable root

[smart_lover]

In launcher.sh file located in /mtd_rocommon/WebBrowser/bin there is following code:

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/mtd_rocommon/WebBrowser/bin/BrowserLauncher
UI_URL=file:///mtd_rocommon/WebBrowser/WebkitUI/Index.html
disable

Can I use

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curl -sL "http://192.168.10.15:545/helloworld" -o /dev/null

at first line before /mtd_rocommon/WebBrowser/bin/BrowserLauncher? Is it harmful?

When I want to update launcher.sh file located in /mtd_rocommon/WebBrowser/bin with FTP, It fails. Why?
With a little research I realized that I have to umount something. And when I use umount /mtd_rocommon 2>&1 I got following error:

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umount: can't umount /mtd_rocommon: Device or resource busy

How can I umount mtd_rocommon?

Note:I am looking for a way to return root access in case of losing it with injecting some codes in this script. Is this code runnable even without root access at TV startup?

[wluczykijwf]

The partition is read only (system file type squashfs)
You're tread on the wrong paths imho

[smart_lover]

The partition is read only (system file type squashfs)
You're tread on the wrong paths imho

How can I make this partition editable?
Wrong paths? Please give me more info.

[juusso]

Do not touch rootfs. You get bootloop if hash calculations does not match. Authuld does some checking during boot and compares hashes against original ones inside tv. It is enough to uncompress rootfs and compress it back w/o any change. Timestamp is different, hash different -?bootlop.

Unless you patch out authuld itself.

[smart_lover]

Do not touch rootfs. You get bootloop if hash calculations does not match. Authuld does some checking during boot and compares hashes against original ones inside tv. It is enough to uncompress rootfs and compress it back w/o any change. Timestamp is different, hash different -?bootlop.

Unless you patch out authuld itself.

Thanks for your warning,I'll forget about it!

[wluczykijwf]

Now you treading on the good paths

[smart_lover]

Now you treading on the good paths

Thanks!

[smart_lover]

Do not touch rootfs. You get bootloop if hash calculations does not match. Authuld does some checking during boot and compares hashes against original ones inside tv. It is enough to uncompress rootfs and compress it back w/o any change. Timestamp is different, hash different -?bootlop.

Unless you patch out authuld itself.

Script removed because it might be harmful.

[juusso]

If you have confirmation, that this script (and related files like TestWidget.zip..) have been tested on same series TV like yours, then yes, otherwise - no, i`m not sure if TV will survive mtd_appext customisation. Pls ask dude you got files from for more information.

[smart_lover]

If you have confirmation, that this script (and related files like TestWidget.zip..) have been tested on same series TV like yours, then yes, otherwise - no, i`m not sure if TV will survive mtd_appext customisation. Pls ask dude you got files from for more information.

He told me its OK! but when I run

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umount /mtd_appext 2>&1

I got "umount: can't umount /mtd_appext: Device or resource busy" error!
How can I run umount command?