initramfs

(initramfs) _
Booting into “Recovery Mode” as well as choosing the other kernels listed in grub didn’t help at all.
Solution:
1. Boot from the Ubuntu Live CD;
2. Open/Run Terminal;
3. Type: sudo fdisk -l (to get the device name) then press ENTER;

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: **********
Device Boot Start End Blocks Id System
/dev/sda1 * 1 30238 242886703+ 83 Linux
/dev/sda2 30239 30401 1309297+ 5 Extended
/dev/sda5 30239 30401 1309266 82 Linux swap / Solaris
The device name for my friend’s system based on the above: /dev/sda1

4. Type: sudo fsck /dev/sda1 then press ENTER;
5. Restart the system and boot normally.
* The laptop booted normally after the fix.