Quote:
Originally Posted by HarryT
Thank you for the correction  . I'm a little puzzled by why it should affect it, though. I didn't think a Factory Reset did anything to the system partition. |
That is probably because you don't know how the jailbreak works internally. (And why would you have cause to learn?)
It has become complex in order to deal with changing situations and for robustness.
...
It includes the MKK (kindlet dev keys, needed for e.g. KUAL)
"gandalf", your friendly neighborhood passwordless su binary.
The original jailbreak certificate.
The scripts which try to restore all the pieces as and when needed.
This is mostly kept in /var/local/ which handles registration -- and gets wiped during a Reset.
The semi-automated backup emergency fix relies on the userstore, which also gets wiped on a reset.
The MKK is purged whenever you cycle your registration (because only the Kindlet developer should have his private dev keys installed, right?
)
The upstart job which can fix a heavily borked jailbreak, gets wiped by a firmware update.
Factory Reset + firmware update == kiss of death.
Factory Reset alone ==
urgent manual intervention is needed to restore a working operation.