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Old 01-09-2011, 10:20 AM   #1
sillyreed
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Exclamation Grub error unknown filesystem...really messed stuff up!


Hi there!!

Here's the quick story: I bought an hp mini for some little kids I know last year, and when I went to check on it they had done a number on it. They had lost the admin password, and it seemed there were serious viruses because XP barely functioned. I tried using ophcrack etc to get at the admin password so that I could fix things within XP. Then i realized that ophcrack was running linux in parallel with XP, so why not install Linux?! A good reason is that little kids can't code at all, and this was going to be way over their heads to keep it free of rootkits etc. (lol and mine, too!) i did however install Ubuntu for a while because it was my only option and it's a great OS. Then I got a copy of Windows 7, and went to install that in addition. It informed me that the disk wasn't formatted to NTFS.

Following forums (imperfectly, I guess), I used Gparted to reformat the main disk partition as NTFS, and deleted the Linux-Swap one (I think that was my major mistake, but I can't go back now!!).

Now I want to be able to reinsert the USB with the Windows 7 boot files and install it, but it's not recognizing the USB, and just telling me:
error: unknown filesystem.
grub rescue>

I tried reinserting the USB with the Ubuntu live disk, but that didn't work either.

My thought now is to try:
Using SupergrubDisk to ummm fix something? Then try reinstalling windows.

I'm clearly clueless, so thanks for your patience

In sum:
What I've got now: no OS, disk drive as NTFS and error: unknown filesystem.
What I'd like to do: install Windows 7

Thanks friendly folks!!
 
Old 01-09-2011, 10:38 AM   #2
business_kid
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Check in the bios for usb boot or pxe(network) boot. Let us know what your netbook can do
 
Old 01-09-2011, 08:36 PM   #3
sillyreed
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hp mini 110-1000 specs

Intel® Atom™ Processor N280
• 1.66 GHz, 512 KB L2 Cache, 667 MHz FSB
1024 MB (1 x 1024 MB) DDR2 533 MHz
160 GB SATA Hard Disk Drive 5400 rpm

I'm sorry, I'm not sure how to check for those things in Bios.
Is the "error: unknown filesystem. grub rescue> " running in bios?

Thanks for offering advice, business kid!
 
Old 01-09-2011, 09:20 PM   #4
syg00
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A quick google indicates F10 should get you into the BIOS.
When you power-on the machine, you should see a HP logo with a message on the bottom telling you this. Hit F10 while the logo is visible. Read the screen to find out how to move around - differs a bit for each manufacturer.
Under "system config" you may find "Boot Options" - change the priority to have USB and/or CD before internal hard drive. Save it and exit.

Re-boot.
 
Old 01-10-2011, 10:47 AM   #5
sillyreed
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Wink

Hi syg00,

Thanks for the tip.

I tried that; my USB stick light blinks once and then it's right back to the page with the error message..

More thoughts out there??


~Reed
 
Old 01-10-2011, 08:20 PM   #6
joshuartaylor
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I have the same issue, I can get into BIOS...set to USB boot, but...can't get passed the grub error...wont even read the DVD drive.
 
Old 01-10-2011, 08:42 PM   #7
Vinter
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Why did you use NTFS to install Linux? As MS's personal pet, it was supported only recently, so any user of free software should avoid it. My advice is to reinstall Linux on an ext3 file system and create a shared partition, if necessary, formatted FAT32 to exchange files between Linux and an NTFS formatted Windows. I have serious doubts your approach could even work, although I never tried it myself.
 
Old 01-10-2011, 09:35 PM   #8
syg00
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@Vinter I think the OP is trying to install Win7 - but grub is in the MBR, and the Linux partition is gone.

I have had scenarios where machines won't boot from a USB (even a key) when you select "USB" from the BIOS boot menu, but will boot if you select "External disk". Even for USB key.
Once even had to use the "USB CD/DVD" selection for a USB key ...

Try some options and see what boots.
 
Old 01-11-2011, 04:08 AM   #9
business_kid
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@ sliiyreed & joshuartaylor:

The bios is the basic i/o system in every pc. To boot from the hard drive it siimply points at the hard disk mbr and tells the pc to run that stuff

To boot from dvd or usb it does something similar with a different drive. When the screen first lights up you usually have instructions for entering setup. There look for a boot order.
 
Old 01-11-2011, 01:58 PM   #10
sillyreed
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Hey there,

I ended up going to my school's computer help desk and they reset the MBR for me, which I understand essentially removed the Grub bootloader. Then I was able to install Windows 7 via a USB drive and it worked!

Thanks for your help, folks!
 
Old 01-11-2011, 02:55 PM   #11
schneidz
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related:
http://www.linuxquestions.org/questi...ml#post4212889
 
  


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