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Possible Duplicate:
Grub rescue - error: unknown filesystem

I looked up several threads but wasn't successful with the proposed solution. I always seem to get error in like Step 2 or something of the proposed solution.

I hope someone will be able to help with my situation >.< I am going to list what I have done and what error I had occurred.

Sorry if the indentation in the error messages are incorrect I am new to command/linux >.<

My computer: Windows 7 and Ubuntu 12.04 LTS


@tachyons, thank you for pointing out about the internet connection. I didn't know that my wireless wasn't automatically connected. I am using wired connection and managed to get the Boot Repair to install.

After clicking "Recommended Repair", I got the following message (I have attached screenshot too) "The sda6 (Ubuntu 12.04 LTS) partition is nearly full. This can prevent to start it. Please use the file browser that just opened to delete unused files (or transfer them to another disk). Close this window when you are finished."

The file that just opened is the window called "home" I am not sure how to proceed... x.X ? ! Screenshot: screenshot, how do I increase size?

Will it be safe to try the other sudo commands listed in my old post (they probably didn't work because my connection was on?)

OLD POSTS (Keeping the following messages for now until the problem is fixed).

BOOT REPAIR I get the following error message when typing the sudo command in USB Disk Ubuntu:

Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 125, in ppa_info = get_ppa_info_from_lp(user, ppa_name)

File "/usr/bin/python2.7/dist-packages/softwareproperties/", line 80, in get_ppa_info_from_lp curl.perform() pycurl.error: (6, "Couldn't resolve host ''")

Reinstall GRUB Following the instruction the page, from Step 2, I found out that my extended is sda4 Step 3, I typed in mkdir temp I got stuck at Step 4, after I typed in the command, I got the following message: mount: you must specify the filesystem type

Another GRUB Repair Attempt After I typed in sudo grub I got the following message: sudo: grub: command not found

More GRUB Repair Attempt I got the following message using the command sudo update-grub /usr/sbin/grub-probe: error: cannot find a device for / (is dev mounted?).

The following attempt was done while in the grub rescue> screen: Grub rescue - error: unknown filesystem For my case it was (hd0,msdos6) When I typed in insmod normal, I got the following error message: error: unknown systemfile grub rescue>

:( So... I found a lot of relevant posts, but none of them was able to get me through, did I make any mistake? Is there anything else I can try? Please help >.< Thank you in advance.

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marked as duplicate by jokerdino, Jorge Castro, stephenmyall, Tom Brossman, Mik Oct 31 '12 at 14:11

This question was marked as an exact duplicate of an existing question.

Just for my curiosity, your internet connection is too slow? – Tachyons Sep 9 '12 at 1:33
@tachyons I may be missing something, but how is a slow internet connection related to this? – hexafraction Sep 9 '12 at 1:54
Did you use the "boot-repair" app. the 1st link you posted? – Suhaib Sep 9 '12 at 1:56
@tachyons, oh my god! My wireless wasn't on .__.! Wireless connected, shows 4 bars, but is not going. I brb trying with wired connection. Thanks all for the quick responses! – Joey Sep 9 '12 at 2:00

So you are using a liveCD or live USB ? I would recommend you to redo the process again. However, Us the advanced option and then choose the "Grub location" tab.from there you will see "OS to be used by default". select from the drop down list your Distro "Ubuntu 12.04" and click OK

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