Wednesday, 13 February 2013

Theory of Automata Materials

Xubuntu 12.04.1 LTS light weight desktop

PC (Intel x86) desktop CD
For almost all PCs. This includes most machines with Intel/AMD/etc type processors and almost all computers that run Microsoft Windows, as well as newer Apple Macintosh systems based on Intel processors. Choose this if you are at all unsure.
64-bit PC (AMD64) desktop CD
Choose this to take full advantage of computers based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, Core 2). If you have a non-64-bit processor made by AMD, or if you need full support for 32-bit code, use the Intel x86 images instead.

Thursday, 10 January 2013

Grub Update

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How to recover GRUB after Microsoft Windows Installation ?


I have been asked so many times by the linux newbies "How to recover GRUB after installing XP or windows 7 ?".

To make the Linux booting after installing windows on the other partition, we need to re-install the GRUB again. You need a Ubuntu bootable pendrive or live CD for this purpose. Boot your system with this pendrive or live CD. Open command line terminal (Application-> Accessories-> Terminal). I am assuming that windows is on first partition and Linux's "/" on second partition. Run the following command.
$ sudo mount /dev/sda2 /mnt
$ sudo grub-install --root-directory=/mnt /dev/sda

The above commands will install GRUB. Now boot your system with the HardDisk. When the system is booted up open the terminal and run the following command.
$ sudo update-grub2
The above command will add an entry for windows  operating system in the grub config file.