Why i got the message 'Input/Output Error" when mounting /dev/mmcblk0p2....
Nothing crashed till i just booted twice to enter different systems Android and MeeGo (via Ubiboot).And when i powered off my Android and tried to boot into MeeGo, it said "Boot OS/kernel selection failed! \n Please run a maintance boot"

I already ran a maintance boot...
And i entered Ubiboot's Telnet (low battery), found that /dev/mmcblk0p2 failed to mount with an error "Input/Output error", but i dd'd this partition (copy data into a file), everything was fine...
And after that, my phone turned into blank...

So can anybody tell me how to fix this? It's not like a hardware problem, i think there's something wrong with the data in the partition, like the header...