My Ubuntu crashed yesterday and after rebooting the grub rescue showed up. I've never used grub before but when I tried ls look like there are only Windows partitions there.
grub> ls (memdisk) (loop0) (hd0) (hd0,msdos2) (hd0,msdos1)
I also tried booting from live CD and use fdisk. However there is no ubuntu partition listed. I am newbie and don't know what I can do next. Please help. Thanks in advance.