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Superuser su binary

OP dangdang

17th September 2010, 03:35 AM   |  #1  
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I've noticed that the su binary installed by superuser doesn't survive a reboot. Anyone else have this problem? Any fixes?

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17th September 2010, 05:00 AM   |  #2  
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Same here. Have to re update after each reboot

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17th September 2010, 07:16 PM   |  #3  
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same here, had to update the binary too
18th September 2010, 03:57 AM   |  #4  
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How do you update the su?
18th September 2010, 07:11 AM   |  #5  
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Launch superuser, go to settings and scroll to the bottom.

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18th September 2010, 07:32 AM   |  #6  
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I've found 3 su:

/system/bin/jk-su (original from the oneclick/permanent)
/system/xbin/su (symlink to /sdx/su)
/sdx/su (superuser updates this one)

Superuser does not update /system/bin/jk-su so I decided to.

So far its working.

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18th September 2010, 11:42 AM   |  #7  
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Quote:
Originally Posted by dangdang

I've found 3 su:

/system/bin/jk-su (original from the oneclick/permanent)
/system/xbin/su (symlink to /sdx/su)
/sdx/su (superuser updates this one)

Superuser does not update /system/bin/jk-su so I decided to.

So far its working.

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How did you update it yourself?
18th September 2010, 06:08 PM   |  #8  
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Here's what worked for me. Keep in mind I am rooted using oneclick 2.2.4 which comes with busybox and remount scripts.

1. Update the su binary using superuser.
2. Launch a terminal (I use better terminal emulator pro)
3. Run 'su' from the terminal
4. Mount system rw with 'remount rw'
5. Remove jk-su with 'rm /system/bin/jk-su'
6. Copy the su binary superuser installed with 'cp /sdx/su /system/bin/jk-su'
7. Reboot and it should survive.

Notes:

Do not include single quotes when running the commands.

I'm paranoid about permissions so as root in terminal I ran:

chown root.shell /system/bin/jk-su
chmod 755 /system/bin/jk-su

To match the permissions of the removed jk-su. I'm not sure if this was necessary.

I haven't tested using adb yet so I don't know the steps.

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20th September 2010, 10:16 PM   |  #9  
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Code:
#cp /sdx/su /system/bin/jk-su
cp: not found
the last part does not work (i have the same root method)

i have to re-root the phone when i get home today. but i will try to move the updated binary with root explorer instead of the command line.
Last edited by vavaud; 20th September 2010 at 10:23 PM.
21st September 2010, 01:02 AM   |  #10  
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Replace 'cp' with 'busybox cp'.

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