Error while trying to boot into Ubuntu OS
I am listing a few details of the booting problem below. Can anyone please tell me what to do ?

So I get this message every time and booting process does not proceed further :

    mount: mounting /dev/disk/by-uuid/020c2c5b-59ec-49cf-a0d5-6bc9c1bee82f on /root failed: Invalid argument
    mount: mounting /dev on /root/dev failed: No such file or directory
    mount: mounting /sys on /root/sys failed: No such file or directory
    mount: mounting /proc on /root/proc failed: No such file or directory

    Target filesystem doesn't have /sbin/init.
    No init found. Try passing init= bootarg

    BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu11) built-in shell (ash)
    Enter 'help' for a list of built-in commands

------------

I am on a dual boot machine with Ubuntu 10.04 LTS and Windows 7 and I have a Live CD. In one of the forums I read that booting from the live CD and checking the boot partition with the following command :

     sudo e2fsck -f -y -v /dev/sda1

should solve the problem (on my computer, the boot partition is /dev/sda1)

However it returned the following :
 
    e2fsck: Superblock invalid, trying backup blocks...
    e2fsck: Bad magic number in super-block while trying to open /dev/sda1

    The superblock could not be read or does not describe a correct ext2
    filesystem.  If the device is valid and it really contains an ext2
    filesystem (and not swap or ufs or something else), then the superblock
    is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

-----------

At this point I'm stuck and don't know how to proceed. Even if I have to reinstall from Live CD that is fine, but I need to take a back up of the data that already exists. Any help ??

Thanks ... Nihit
Error while trying to boot into Ubuntu OS
===

I am listing a few details of the booting problem below. Can anyone please tell me what to do ?

So I get this message every time and booting process does not proceed further :

    mount: mounting /dev/disk/by-uuid/020c2c5b-59ec-49cf-a0d5-6bc9c1bee82f on /root failed: Invalid argument
    mount: mounting /dev on /root/dev failed: No such file or directory
    mount: mounting /sys on /root/sys failed: No such file or directory
    mount: mounting /proc on /root/proc failed: No such file or directory

    Target filesystem doesn't have /sbin/init.
    No init found. Try passing init= bootarg

    BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu11) built-in shell (ash)
    Enter 'help' for a list of built-in commands

------------

I am on a dual boot machine with Ubuntu 10.04 LTS and Windows 7 and I have a Live CD. In one of the forums I read that booting from the live CD and checking the boot partition with the following command :

     sudo e2fsck -f -y -v /dev/sda1

should solve the problem (on my computer, the boot partition is /dev/sda1)

However it returned the following :
 
    e2fsck: Superblock invalid, trying backup blocks...
    e2fsck: Bad magic number in super-block while trying to open /dev/sda1

    The superblock could not be read or does not describe a correct ext2
    filesystem.  If the device is valid and it really contains an ext2
    filesystem (and not swap or ufs or something else), then the superblock
    is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

-----------

At this point I'm stuck and don't know how to proceed. Even if I have to reinstall from Live CD that is fine, but I need to take a back up of the data that already exists. Any help ??

Thanks ... Nihit