Undecimus: Failed to extract bootstrap

Created on 5 Mar 2019  路  3Comments  路  Source: pwn20wndstuff/Undecimus

Describe the bug
1218987b-9ce8-4ebf-b54a-260097909c4d

Gets stuckhere everytimr

To Reproduce
Steps to reproduce the behavior:
Get ipad mini 2
Use b40

Screenshots
If applicable, add screenshots to help explain your problem.

Device (please complete the following information):

  • iOS Version: 12.1
  • iOS Device: Ipad mini 2
  • unc0ver Version: b40

Place an "x" between the brackets if true:

  • [x ] this is a bug others will be able to reproduce
  • [x ] this issue is present with all tweaks uninstalled(except for default packages) or disabled
  • [x ] this issue is present after a rootfs restore
  • [x] this issue is present on the latest version of unc0ver

Logs
If applicable, add logs or error messages here.

Bug

Most helpful comment

This Worked for me, try and confirm please.

Airplane Mode "ON"

1 Open unc0ver and go to the settings page

2 Turn 芦Load Tweaks禄 off and then jailbreak as you usually would

3 Once Jail Broke and respring, go to Settings in Uncover turn on tweaks
rejailbreak and cydia is loaded

Same error as above, IPhone 6 12.1.1 b3

Unfortunately fix didn't work.

UPDATE:
After some testing, the following worked for me:

  • Airplane Mode on
  • Load Tweaks Off
  • Restore RootFS On

Note: May take a few tries, if bootstrap error comes up restore RootFS again. If phone reboots at 2/38 or exploit fails, simply keep trying until it succeeds.

  1. Jailbreak -> RootFS should be installed/mounted or whatever
  2. Reboot
  3. RootFS should be off now. Jailbreak again -> Snapshot
  4. Jailbreak again, make sure load tweaks is still off. Bootstrap should be successfully extracted.
  5. Jailbreak, it should succeed and Cydia should be installed.
  6. Re-Jailbreak with Tweaks On and everything should work fine.

All 3 comments

This Worked for me, try and confirm please.

Airplane Mode "ON"

1 Open unc0ver and go to the settings page

2 Turn 芦Load Tweaks禄 off and then jailbreak as you usually would

3 Once Jail Broke and respring, go to Settings in Uncover turn on tweaks
rejailbreak and cydia is loaded

This Worked for me, try and confirm please.

Airplane Mode "ON"

1 Open unc0ver and go to the settings page

2 Turn 芦Load Tweaks禄 off and then jailbreak as you usually would

3 Once Jail Broke and respring, go to Settings in Uncover turn on tweaks
rejailbreak and cydia is loaded

Same error as above, IPhone 6 12.1.1 b3

Unfortunately fix didn't work.

UPDATE:
After some testing, the following worked for me:

  • Airplane Mode on
  • Load Tweaks Off
  • Restore RootFS On

Note: May take a few tries, if bootstrap error comes up restore RootFS again. If phone reboots at 2/38 or exploit fails, simply keep trying until it succeeds.

  1. Jailbreak -> RootFS should be installed/mounted or whatever
  2. Reboot
  3. RootFS should be off now. Jailbreak again -> Snapshot
  4. Jailbreak again, make sure load tweaks is still off. Bootstrap should be successfully extracted.
  5. Jailbreak, it should succeed and Cydia should be installed.
  6. Re-Jailbreak with Tweaks On and everything should work fine.

Duplicate issue #530

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