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GRUB2 error: unknown filesystem from reinstall

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http://askubuntu.com – (Sorry if some of this info is irrelevant, not sure if how much of this will matter or not) So I was reinstalling Ubuntu 12.10 with the same USB I had used to install it the first time (dual boot with win7). I initially had a grub error booting into windows (but not ubuntu), but I could still boot into windows by switching to the windows bootloader in the BIOS. So I ran boot repair in ubuntu and everything was fine. However there were some sound issues, I tinkered with alsa and ended up breaking it more, so I decided to reinstall. When I booted from the USB, I got the option to remove the exi (HowTos)

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Submitted by Danial on 12/21/2012

Stories similar to GRUB2 error: unknown filesystem from reinstall

I've bought new laptop Sony Vaio E14P series. It has pre-installed Windows 8, and I want to dual boot it with Ubuntu 12.10 64bit. I have diabled secure boot and install Ubuntu without any problem from live USB.

When I reboot after installation, it directly boot to windows 8, dont load GRUB at all. So I went to live USB again to boot-repair.

[ubuntu] Windows 7 Wont boot 1 year 13 weeks ago

So, im completely new to ubuntu and I just wanted to try it out. So i set up a dual boot with windows 7 and ubuntu, and ubuntu works fine. Yet, when i try to boot windows 7, it gives me the error "unknown filesystem" with grub rescue under that.

Hello everyone.

Ok, I attempted a fresh Ubuntu install as I was having some internal system errors. When a simple "re-installation" didn't fix anything, I performed a "delete Ubuntu 13.04 and reinstall" from the boot USB.

That's when it all began. First I had a grub problem, where all I got at boot was the Grub Recovery. So I booted my windows recovery and repaired it.

I am fairly new to Linux/Ubuntu and am in need of some help. I have dual booted Windows 7 and Ubuntu 12.10 on 2 separate hard drives. After several attempts, I was only able to get it working by changing the BIOS hd boot option. I then found some threads on repairing the boot process by using Boot-Repair.

I formerly had windows 7 without ubuntu. Now I upgraded it to windows 8..then I installed ubuntu 12.10 with live disk.

After installing it runs ok and I see a dual boot option in grub menu. Now sometimes I log in to windows 8 for some tasks.

windows reinstall issues 20 weeks 3 days ago

I formerly had windows 7 without ubuntu. now i upgraded it to windows 8..then i installed ubuntu 12.10 with live disk. after installing it runs ok... i see a dual boot option in grub menu... now sometimes i log in to windows 8 for some tasks.

It first started when I deleted my partition that had Ubuntu 12.04 on it. Little did I realize at the time that it would destroy all the resources of Grub on it, and subsequently prevent me booting into my hibernated windows. So I made a 12.10 Ubuntu live USB and reinstalled windows bootloader.

Please help.

My Ubuntu Precise Pangolin installation was booting up pretty fast, it takes about 10-15 seconds to boot until today.

When I turn on my PC this morning it was taking a very long time to boot maybe about 5 minutes that I decided to press the reset button then encountered unknown file system and grub rescue error.

How to Repair Grub 24 weeks 2 days ago

Yesterday I installed ubuntu 12.04.1.

Note : its a dual boot system along windows 7

At first grub was appearing and i was able to start ubuntu but then i had to switch to windows but windows was not booting when i select windows 7 it jumps back to grub window. So i fix the Windows Boot Loader using repair from windows media and wolla windows started to boot but Ubuntu Grub gone.