Stuck at Grub Rescue (grubrescue> ) ; no filesystem found

if you are stuck at booting in ubuntu due to some file system miss management and prompted with command promptin a dual boot system (windows & linux)

"grubrescue>"

what to do ?

you may need to follow some simple steps:

1. you may get a list of available partitions by typing command "ls" and then enter, you may get a list like following

2. Now you have to find your linux partition. for that you may go with command " ls (hd0,msdos7)/ " or  just "ls (hd0,7)/". you will get list of directories only for linux partition for all other partitions you will get error like "no file system found".

3. After finding linux partition you need to set linux partition as prefix and set its mode to normal. you may write the command statements as following:

 4. In case you get some error (unable to find HDD), while setting mode to normal you may write it like:

 5. You will be taken back to normal boot screen of ubuntu. but you need to perform the above set of operations on every boot, which is not a good choice :) so just login to ubuntu and reinstall the grub loader.

restart the system and enjoy.

I hope it will help you out. :)

Recover from Purple Screen after installing Graphics Driver in Ubuntu 14.04

I have read a number of posts regarding graphics driver problems with Ubuntu (specially NVIDIA) . If you fail to install appropriate "supporting" driver for your graphics, the ubuntu may hold on Purple screen after initial boot and hangs.

to recover from the situation you may roll back the installation as follows:

1. reboot system

2. hold right shift to go for boot selection of ubuntu and then choose the recovery mode

3. after you get displayed with some options go for the root shell

4. mount the files system to access by using following command

mount -o remount rw /

5. uninstall all nvidia drivers installed by using

sudo apt-get remove --purge nvidia--*

6. Reboot system

hope you will boot with generic graphics driver.