Kindle Oasis 3 - PERMISSIONS HELP

mergen3107 · 09-01-2021, 06:32 PM

In a desperate attempt to remove "Kindle Feedback" from Home screen after KindleBreak, a user from 4PDA got boot loop on their Kindle Oasis 3.

The user did "chmod /var/local/ 255" from SSH over WinSCP to attempt to block write permission. The result is that Kindle in now in boot loop.

- Kindle Oasis 3
- FW 5.12.4, JB by KindleBreak
- No Rescure pack or Coward's Rescue Pack
- Storage is accessible during boot loop
- Kindle had Wi-Fi turned on before that

Tried the following, to no avail:
1) put update_.bin - Kindle says "Repair needed"

2) ENABLE_DIAGS doesn't work (no Rescue pack)

3) Changing usbnet's config to use Wi-Fi only and adding "auto" file to /usbnet/ didn't help - Kindle is not accessible with WinSCP

4) Kubrick didn't help, Kindle has only one partition /dev/sde (or /dev/sdd sometimes) instead of "mmcblkpN..." parts. Kubrick GUI cannot detect Kindle.

5) JB Hotfix throws error 004, most probably because it cannot write to /var/local/mkk/ . I tired to extract it with kindletool, add "chmod 755 /var/local/" in the install-dispatch.sh right before " HACKNAME="jb_dispatch" ", then create ota2 package for oasis3 as update.bin, but it didn't work - the same error 004.

6) In the dispatch file of the JB Hotfix I found references that it tries to run /mnt/us/RUNME.sh if it is present. So simple .sh file just to change the permissions didn't work neither. The file was placed there and JB Hotfix ran again (attempted):

Code:

#!/bin/sh
#
chmod 755 /var/local/

7) The only thing to try is to DO_FACTORY_RESET , but I am not sure this will fix the permissions.

Any suggestions/comments are very much appreciated!

Maybe I did something wrong with Hotfix patch.
Or is there anything we didn't try?

katadelos · 09-02-2021, 09:58 AM

IIRC, DO_FACTORY_RESTORE will wipe and rebuild /var/local as part of the factory reset - it's probably your only option if the current permissions are so screwed up that nothing else is working.

mergen3107 · 09-04-2021, 08:46 PM

@katadelos,

Thank you!

DO_FACTORY_RESTORE actually did the trick!

09-01-2021, 06:32 PM	#1
mergen3107 Wizard Posts: 1,506 Karma: 5000046 Join Date: Feb 2012 Location: Cape Canaveral Device: Kindle Scribe	Kindle Oasis 3 - PERMISSIONS HELP In a desperate attempt to remove "Kindle Feedback" from Home screen after KindleBreak, a user from 4PDA got boot loop on their Kindle Oasis 3. The user did "chmod /var/local/ 255" from SSH over WinSCP to attempt to block write permission. The result is that Kindle in now in boot loop. - Kindle Oasis 3 - FW 5.12.4, JB by KindleBreak - No Rescure pack or Coward's Rescue Pack - Storage is accessible during boot loop - Kindle had Wi-Fi turned on before that Tried the following, to no avail: 1) put update_.bin - Kindle says "Repair needed" 2) ENABLE_DIAGS doesn't work (no Rescue pack) 3) Changing usbnet's config to use Wi-Fi only and adding "auto" file to /usbnet/ didn't help - Kindle is not accessible with WinSCP 4) Kubrick didn't help, Kindle has only one partition /dev/sde (or /dev/sdd sometimes) instead of "mmcblkpN..." parts. Kubrick GUI cannot detect Kindle. 5) JB Hotfix throws error 004, most probably because it cannot write to /var/local/mkk/ . I tired to extract it with kindletool, add "chmod 755 /var/local/" in the install-dispatch.sh right before " HACKNAME="jb_dispatch" ", then create ota2 package for oasis3 as update.bin, but it didn't work - the same error 004. 6) In the dispatch file of the JB Hotfix I found references that it tries to run /mnt/us/RUNME.sh if it is present. So simple .sh file just to change the permissions didn't work neither. The file was placed there and JB Hotfix ran again (attempted): Code: #!/bin/sh # chmod 755 /var/local/ 7) The only thing to try is to DO_FACTORY_RESET , but I am not sure this will fix the permissions. Any suggestions/comments are very much appreciated! Maybe I did something wrong with Hotfix patch. Or is there anything we didn't try?

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09-02-2021, 09:58 AM	#2
katadelos rm -rf / Posts: 219 Karma: 3333683 Join Date: Nov 2019 Location: United Kingdom Device: K5, KT, KT2, KT3, KT4, KV, PW2, PW3, PW4, PW5	IIRC, DO_FACTORY_RESTORE will wipe and rebuild /var/local as part of the factory reset - it's probably your only option if the current permissions are so screwed up that nothing else is working.

09-04-2021, 08:46 PM	#3
mergen3107 Wizard Posts: 1,506 Karma: 5000046 Join Date: Feb 2012 Location: Cape Canaveral Device: Kindle Scribe	@katadelos, Thank you! DO_FACTORY_RESTORE actually did the trick!

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