Help? I installed Ubuntu (Tobisha usb hdd) And no matter what I do I get grub errors?
I installed Ubuntu onto an external Tobisha USB harddrive (500 GB), and no matter what I do, it refuses to boot on anything but the computer it was installed on. Grub doesn't work properly, and I'm thrown to a Rescue prompt everytime I try to boot on my laptop.
Any ideas? I can give more details/screenshots if requested. I'm lost. |
Always present all the details you have (error messages, screenshots, whatever). Otherwise it is very difficult for us to help you. Remember, we do not have access to your system, so we can't know what is going on if you don't tell us.
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http://sourceforge.net/projects/bootinfoscript/ |
1 Attachment(s)
Attached are the results of running bootinfoscript...
I'm a little lost/ :scratch: ______________________________ In the years I've worked with Linux, I've never had to deal with fixing Grub. __________________________________________________________________________ What I'm working with is the 12.10. I also have BT installed. |
If I understand you correctly you have windows, bt on the physical machine and ubuntu on an external drive.
First question I have is Quote:
Grub is installed on both drives. Does the external drive need to boot by itself or is it just a drive to house Ubuntu for this computer? This is the current partitions of your two drives Code:
sda1: Windows Code:
update-grub |
Since you have Grub2 installed to the mbr of the external drive pointing to the Ubuntu partition, you would need to select the external drive as first boot priority in the BIOS of whatever machine you attach it to and boot from, your laptop for instance. Have you done that? What do you have on the laptop for operating system and bootloader?
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My external drive needs to boot itself.
It's supposed to replace a USB drive I used on a day to day basis to boot a laptop I have no harddrive for, nor do I have the money to buy one for. And I set it as the primary device to boot from in the BIOS, and it attempts to boot, but no matter what I do, my external hdd gives me an Error and throws me onto a "grub rescue> prompt." |
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I don't have the exact error message, but it was something along the lines of
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And it works just fine... I'm extremely confused now. :banghead: |
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The exact error message is
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If you don't have any other hard drive on the laptop (just using the external with Ubuntu) it is probably seeing the drive as (hd0). You could try booting Backtrack with your external attached, mount the Ubuntu partition and change the entry for Ubuntu to (hd0) rather than (hd1) in the grub.cfg file set root= line.
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Code:
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-453415c6-c117-4867-8106-bd9f9e5d134a' { Code:
set root='hd0,msdos1' |
I tried your suggestion, and it fixed nothing. I can't even get the Grub 2 Boot menu.
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If you can get to your grub rescue prompt try the following and let us know what it says: Code:
ls |
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