How to get into recovery mode?

Questions about Grub, UEFI,the liveCD and the installer
Forum rules
Before you post please read how to get help
ksten
Level 1
Level 1
Posts: 1
Joined: Fri Nov 10, 2017 5:26 am

How to get into recovery mode?

Postby ksten » Fri Nov 10, 2017 5:31 am

I've tried following the instructions here viewtopic.php?t=110111

But holding shift down during boot doesn't load the grub menu. How do I boot into single user mode in Mint 18.2?

User avatar
Flemur
Level 13
Level 13
Posts: 4565
Joined: Mon Aug 20, 2012 9:41 pm
Location: Potemkin Village

Re: How to get into recovery mode?

Postby Flemur » Fri Nov 10, 2017 10:49 am

"Ubuntu does not display the GRUB menu by default. To see GRUB during boot you need to press the right-hand SHIFT key during boot."

It's probably best to make the menu show up for a second or two by default, which IIRC you do by:
In file

Code: Select all

/etc/default/grub

Set the # seconds to display menu like 2:

Code: Select all

GRUB_HIDDEN_TIMEOUT=2

then

Code: Select all

sudo update-grub

and reboot.
Mint 18.2 Xfce/fluxbox/pulse-less - Xubuntu 16.10/fluxbox/pulse-less
Please edit your original post title to include [SOLVED] if/when it is solved!
Your data and OS are backed up....right?

mr_raider
Level 6
Level 6
Posts: 1218
Joined: Sun Jun 20, 2010 9:50 am
Location: Montreal, QC

Re: How to get into recovery mode?

Postby mr_raider » Fri Nov 10, 2017 10:54 am

Thought it was left shift?

Either way it's extremely unreliable, since you got to hit shift at just the right time in the boot process. Editing the defaults is better.
Image

User avatar
phd21
Level 13
Level 13
Posts: 4911
Joined: Thu Jan 09, 2014 9:42 pm
Location: Florida

Re: How to get into recovery mode?

Postby phd21 » Fri Nov 10, 2017 3:02 pm

Hi "ksten",

I just read your post and the good replies to it. Here are my thoughts on this as well.

After reading and researching more on this, I read that some people had to use (hold down during boot) the Esc key or Spacebar instead of the Left or Right Shift key to get into the boot menu for the advanced boot menu and recovery options?

I would recommend changing the boot options to display the boot menu for at least a little time.
Last edited by phd21 on Fri Nov 10, 2017 3:55 pm, edited 1 time in total.
Phd21: Mint KDE 17.3 & 18.2, 64-bit Awesome OS, Ancient Dell OptiPlex 780 Core2Duo E8400 3GHz,3gb Ram,160gb hdd, Video: Intel 4 Graphics, DVD Lightscribe. Why I use KDE?:https://opensource.com/life/15/4/9-reasons-to-use-kde

ajgreeny
Level 4
Level 4
Posts: 301
Joined: Mon Nov 19, 2007 3:27 pm

Re: How to get into recovery mode?

Postby ajgreeny » Fri Nov 10, 2017 3:50 pm

I made these edits to my /etc/default/grub file in Xubuntu 14.04 and now 16.04 to ensure that I see the grub menu for a few seconds at every boot even though I have a single OS system which will not show the grub menu by default.

Code: Select all

GRUB_DEFAULT=0
#Next line will make the countdown time show menu by default
GRUB_TIMEOUT_STYLE=menu
#Next line changed from 0 to 2 for 2 second delay
GRUB_HIDDEN_TIMEOUT=2
#Next line changed from true to false to allow delay countdown to show
GRUB_HIDDEN_TIMEOUT_QUIET=false
GRUB_TIMEOUT=2
GRUB_DISTRIBUTOR="Xubuntu-14.04"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

Give it a try and don't forget to run

Code: Select all

sudo update-grub
after the edit.


Return to “Installation & Boot”