jailbroken iphone 3gs won't boot

today I had to restart my jailbroken iphone because it was getting slow.I was surprised when it didn't boot and stuck while loading the OS.I was lucky that I was using verbose boot thing so that i was able to see what was going on.my problem was related to some fsck error during the boot. I tried hard to capture what was the error message because it was restarting quickly after that step.I used to use linux system and thought that the problem was with a corrupted unix filesystem however it wasn't.After doing some googling i found that thousands of people had this problem and looks like thousands of will have.Some clever guy had found that the problem was because of an update to /sbin directory from the jailbreak community (cydia/rock etc.) . and used one of the jail break programs with some customization to restore the sbin directory. That way you don't need to restore and start everything from square one.Also you won't loose any data. The blog of this guy and the more detailed explanation of the problem is : http://www.spacesparkstudios.com/?q=node/10 . I had to use a mac to use his custom deployment but after doing it, it worked perfect and I was able to boot my iphone.There is also a link to the discussions where everyone having the same problem : http://modmyi.com/forums/general/709372-iphone-3gs-wont-boot-past-apple-logo-turns-off-itself.html

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