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View Full Version : [SOLVED] grub prompt after I installed ubuntu on macbook pro



tim61
August 7th, 2014, 02:26 PM
Hi,
I have a late 2103 Macbook Pro and am wanting to experiment with ubuntu. I have a usb-stick which boots and offers to try ubuntu or install it. I tried installing it onto an external USB HD. I followed some instructions that seemed close to my setup: //help.ubuntu.com/community/MacBookPro11-1/Saucy.
Included in these instructions were some edits of grub. But when I came to the line:
sudo update-grub
I got an error about not finding canonical cow or something.
Now when I reboot I get a grub command prompt and an error "failure reading sector 0x0 from hd0."
I then tried using instructions on //help.ubuntu.com/community/Boot-Repair and this generated a paste bin report
paste.ubuntu.com/7979596
, said that it had solved the problem, but the problem still persists (i.e. grub command prompt).

Is this is the right place to post this question? Can anyone help?

Tim

yancek
August 7th, 2014, 03:32 PM
You can't update grub on an installed system from a DVD/flash drive without using chroot method. Any reason why you did not post the contents of the Boot Repair report as that would be useful.

tim61
August 11th, 2014, 09:08 AM
Please ignore this thread now. Solved by wiping and reinstalling mac. :(