Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Newbie
User Name
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!


  Search this Thread
Old 07-10-2015, 04:29 AM   #1
LQ Newbie
Registered: Jun 2015
Distribution: fedora_20
Posts: 6

Rep: Reputation: Disabled
Unhappy Grub fedora

when start my pc the system enters in a cmd prompt saying
grub rescue>
and i cannot exit from it
plz tell me how to exit from this

ps: post a link a guide for using grub
also how to reset root passwd in grub
Old 07-10-2015, 05:14 AM   #2
Senior Member
Registered: Nov 2013
Location: Tokyo
Distribution: Redhat/Centos, Ubuntu, Raspbian, Fedora
Posts: 1,692

Rep: Reputation: 353Reputation: 353Reputation: 353Reputation: 353
This page points to official grub documentation as well as a few tutorials:

As far as I know, grub doesn't reset the root password. You can boot into single user mode by adding "s" to the kernel parameters, but some distros require entering the root password when going single user. The best solution is booting from a live CD or USB stick, mountiing your root filesystem and removing the password.
Old 07-10-2015, 08:08 AM   #3
LQ Guru
Registered: Apr 2008
Distribution: PCLinux, Slackware
Posts: 7,299

Rep: Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386Reputation: 1386
Did this system ever boot or is it a new install?
The error you are getting does not likely have anything to do with a password but improperly configured bootloader. The link below is another to configuring Grub2, specific to Fedora.

Posting more detailed information would be helpful. Boot any Linux Live CD, go to the site below and run the bootinfoscript. It will produce a results.txt file which you can post here and get some help. There is a link to specific instructions on the page.
Old 07-10-2015, 02:33 PM   #4
John VV
LQ Muse
Registered: Aug 2005
Location: A2 area Mi.
Posts: 17,189

Rep: Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507Reputation: 2507
the only real reason for that to show up is
You changed something
like you removed partitions or resized one that had the mbr or the /boot partition on it
or tried to reinstall windows or a windows service pack

WHAT did you change ?

and second WHAT version of Fedora is this ?
ONLY fedora 21 and 22 are supported


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to edit the grub grub config file on Fedora 17? Not_Dead Linux - Software 1 08-30-2012 04:38 PM
[SOLVED] How come I can't edit /boot/grub/grub.conf or /boot/grub/menu.lst in Fedora 14? trien27 Fedora 4 01-22-2011 04:02 PM
How to build grub with grub-fedora-8.patch The00Dustin Fedora 2 05-28-2008 05:48 AM
Grub - Does fedora automatically install a bootloader like grub? or... mitchell7man Linux - Software 10 05-09-2007 10:49 AM
Need to (re)install GRUB: fedora c4 rescue cd (and GRUB) unable to see the harddisk whencat Fedora 4 03-05-2006 02:01 PM > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 04:21 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration