/grub/i386-pc/normal.mod error and unknown command errors

Asked by john smith

I just installed Ubuntu on my computer. It installed fine, but on the reboot it says:

error: file /grub/i386-pc/normal.mod

I don't understand. I have tried many things I have found on these sites to try and fix it but it normally comes up with unknown command. For example I type in sudo grub-install /dev/sda and it says unknown command: sudo. it also says that with boot and most other commands i put in I really would like to figure this out please help me!

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john smith
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David Pires (slickymaster) said :
#1

Use Boot-Repair (https://help.ubuntu.com/community/Boot-Repair). It's a GUI application which can automatically analyze boot problems and select the proper course of action to repair them. Its simple interface provides beginners as well as experienced Linux users an easy method of repairing the majority of GRUB 2 problems.
Additionally, Boot-Repair contains an automated method to run a boot info script which performs a series of tests and provides a file containing much valuable information regarding the status of the computer's operating and boot systems. This file can be inspected by community helpers on forums or IRC channels to help diagnose boot problems.

Boot-Repair can be run from a LiveCD or an operating Linux system.

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john smith (jkschr) said :
#2

i can not find the boot-repair anywhere to download

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David Pires (slickymaster) said :
#3

The link is on my previous message.

https://help.ubuntu.com/community/Boot-Repair

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john smith (jkschr) said :
#4

i have tried all those avenues and i cant find it those ways do not work.

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David Pires (slickymaster) said :
#5

Do the follwing:

Boot your computer with a Ubuntu Live-CD and choose the Choose "Try Ubuntu without any change to your computer". You should get a desktop which we call a "LiveCD session". Then connect internet and just do the follwing:

open a new Terminal, then type:

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

- Press Enter.

- Then type:

sudo apt-get install -y boot-repair && boot-repair

- Press Enter

Launch Boot-Repair by typing 'boot-repair' in a terminal

Then click the "Recommended repair" button. When repair is finished, note the URL (paste.ubuntu.com/XXXXX) that appeared on a paper, then reboot and check if you recovered access to your OSs.

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john smith (jkschr) said :
#6

just tried the boot-repair and it did not work

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john smith (jkschr) said :
#7
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john smith (jkschr) said :
#8

it wont even load the isoubuntu disk