Grub rescue

I had triple-boot on my system. Windows 8, windows 7 and Ubuntu and all the boot management done by Ubuntu Grub of course. Almost having all the 3 OS for about 6 months, I started facing difficulties like slowing down, shortage of space, etc and so I decided to delete windows 8.

The process to do that is simple.
on start menu, select run and type msconfig. Once that opens select the Boot tab and in it select the Windows 8 option and click on delete and then click on OK.
I then, deleted the partition holding Windows 8 and merged it with one on the other drives. Now, this leads to en error. The Linux grub manages only the windows 8 and the windows 8 boot loader manages between windows 7 and windows 8. So, when the windows 8 partition was deleted , it corrupted the grub as well.
This lead to the error :

unknown filesystem:
grub rescue> _

This error can be fixed easily.  The path the grub has to be set. So, type the following commands :

set boot=(hd0,msdos6)
set prefix=(hd0,msdos6)/boot/grub
insmod normal
normal

Once all the 4 commands are typed , automatically the grub loads allowing you to chose the OS to boot into.

once the boot options is got.. Boot into Ubuntu and then reinstall the grub using the following commands

sudo update-grub
sudo grub-install /dev/sda

Some times the boot file might not be there on (hd0,msdos6) , in this situation , you can type ls and find out all the partitions
Example :
grub rescue> ls
(hd0), (hd0,msdos5),(hd0,msdos6),(hd0,msdos7),(hd0,msdos8)

So use ls to find the boot folder.
Eg:
grub rescue> ls  (hd0,msdos5)
no file system found
grub rescue> ls (hd0,msdos6)
ext4: file system

So, when a message that come like ext4 or any other file system exist, the boot file is present in that partition. So in the above 4 statements, substitute (hd0,msdos6) with the partition you have found containing the file system.

Give people what they want : Windows meets Android

The two most used operating system in the world are the windows and the android. And how would it be if there is a release to have them both together on a PC simultaneously  and one could use them at the same time without switching??
This year at CES , many people got just the thing they were looking for. The company BlueStacks in collaboration with AMD have created the android for windows 8. It runs on top of windows and they have taken care of the very last details while creating it.

I have tried emulators, tried running android on VMs but it was still painfully slow. But with this release its become awesome. Imagine the apps that are only on android can be played in full resolution. You don’t need your phone/tab while you are home and because the apps will be synced straight into the android running on your PC. And for the best part it even allows you to sync multiple android devices.

So this has the potential to bridge the gap between multiple operating systems and multiple devices. This does not involve Dual booting, as it becomes very messy and is very resource intensive. The bluestack-AMD approach  is a virtual environment created to run android natively. This is as of now optimized under AMD and thus makes use of the AMD’s  APUs, beginning with the 4th generation AMD APU codenamed “Kaveri” .

amd_bluestacks_android_win8

For the user, the workflow advantages are enormous. BlueStacks provides a full Android User Interface (UI). The customization, settings and personalization capabilities you expect from your Android phone or tablet are right there in the virtual Android environment.

And that Android UI? It is a fully functional window on your Windows desktop. So, you can have Photoshop open on one side of your desktop and your favorite Android app on the other.  About to unlock a Booster? Blow your Android window up to full screen and fill your desktop. BlueStacks takes full advantage of the AMD platform.

check out the live demo:

For those of you having Intel, I think it should be a short wait before something alike comes for Intel as well, because BlueStacks has made it clear why this is very necessary.

You can read the full press release here.
SOURCE – AMD COMMUNITY