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I recently installed Ubuntu 11.04. It was running great until a few hours later, while trying to shutdown the system the screen went black and sat like that for a few minutes. Everything was still powered but no sign of anything working on screen or HDD activity. I decided to force power it down.
The next day I turned it on and I tried accessing my Ubuntu install (this is a Wubi install btw, it is not partitioned) and all I was greeted with was a grub 1.99 prompt.
Ive tried using the terminal from a usb boot to restore and mount /dev/sda1 but it did not work.
Next I tried using the grub> set root (hd0,1) way and that only yielded no such file.
After much searching about I found a way of switching super blocks but any I tried to use kept saying bad magic number regardless of which back up block it was. I finally did a dmesg | tail this is the result.
$ dmesg | tail
[ 20.633647] input: HDA Intel Mic at Ext Front Jack as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[ 20.633762] input: HDA Intel HP Out at Ext Front Jack as /devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[ 20.698064] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 21.392216] lp: driver loaded but no devices found
[ 21.418045] ppdev: user-space parallel port driver
[ 95.847060] EXT3-fs (sda1): error: can't find ext3 filesystem on dev sda1.
[ 260.735803] EXT3-fs (sda1): error: can't find ext3 filesystem on dev sda1.
[ 656.077965] EXT3-fs (sda): error: can't find ext3 filesystem on dev sda.
[ 661.021907] EXT3-fs (sda1): error: can't find ext3 filesystem on dev sda1.
[ 676.614081] EXT2-fs (sda1): error: can't find an ext2 filesystem on dev sda1.
I am stumped as for all the solutions that are available online. I have tried all of them. I could link them to you if you please.