Arch Linux

rubenvb

Member

Registered: 2011-01-14

Posts: 99

GRUB2: resume from disk and "update-grub"

I know that adding a

> resume /dev/disk/by-uuid/somecrazyuuid

to the boot line of the grub/menu.lst, but GRUB2 doesn't have this and relies on fancy scripts and a "/etc/default/grub" file for easy option editing (which is better IMHO).

How should I do this for GRUB2?

And another thing (maybe just a small nuicance). Why is there no update-grub for GRUB2 in Arch? I thought it was "part of the package", if you know what I mean.

Thanks!

Last edited by rubenvb (2011-01-22 09:27:48)

empthollow

Member

Registered: 2009-09-26

Posts: 168

Re: GRUB2: resume from disk and "update-grub"

I have never used resume grub.  All custom modifications can be made in /etc/grub.d/40_custom  There is a slight syntax difference that can be found on the grub2 archwiki.  As far, as update-grub goes, the 'update-grub' command is an ubuntu command but what is part of the package is 'grub-mkconfig'.  To create a grub.cfg file run this:

sudo grub-mkconfig -o /boot/grub/grub.cfg

This will use the files in /etc/grub.d to create a grub.cfg file.

---

--empthollow
Check out my Arch based live distro http://fluxcapacity.99k.org

ANOKNUSA

Member

Registered: 2010-10-22

Posts: 2,141

Re: GRUB2: resume from disk and "update-grub"

As far, as update-grub goes, the 'update-grub' command is an ubuntu command but what is part of the package is 'grub-mkconfig'.  To create a grub.cfg file run this:

sudo grub-mkconfig -o /boot/grub/grub.cfg

This will use the files in /etc/grub.d to create a grub.cfg file.

Yup; I use BURG (for now; should just switch to grub2, since it's progressing further) so I just use a 'burgup' alias. 

I'm afraid I can't say for sure how grub2 handles suspend to disk.  Have you tried it yet?  I might be wrong, but a test-run of suspend-to-disk shouldn't hurt once.

---

Linux != Windows  ::  Ask Questions the Smart Way  ::  Configs

Beelzebud

Member

From: Illinois, U.S.

Registered: 2010-07-16

Posts: 154

Re: GRUB2: resume from disk and "update-grub"

The command for "update-grub" comes from Ubuntu, and is just an alias.   If you'd like functionality like that in Arch, just add this to your ~/.bashrc file:

alias update-grub='sudo update-grub='sudo grub-mkconfig -o /boot/grub/grub.cfg'

ioos

Member

Registered: 2011-01-25

Posts: 125

Re: GRUB2: resume from disk and "update-grub"

Beelzebud, I just found this through a search. Very helpful. Thank you.

rhoit

Member

From: 977

Registered: 2012-07-05

Posts: 62

Website

Re: GRUB2: resume from disk and "update-grub"

The command for "update-grub" comes from Ubuntu, and is just an alias.   If you'd like functionality like that in Arch, just add this to your ~/.bashrc file:

alias update-grub='sudo update-grub='sudo grub-mkconfig -o /boot/grub/grub.cfg'

Its not solving the problem! "update-grub" it used to detect all the OS in all your partitions!

just found in wiki
I guess we need "os-prober"  https://www.archlinux.org/packages/?name=os-prober

Last edited by rhoit (2012-08-25 08:53:29)

DSpider

Member

From: Romania

Registered: 2009-08-23

Posts: 2,273

Re: GRUB2: resume from disk and "update-grub"

Alias should probably be:

alias update-grub='grub-mkconfig -o /boot/grub/grub.cfg'

Stick it at the end of /etc/bash.bashrc, for system-wide availability, or, create a script in /bin:

# nano /bin/update-grub

#!/bin/sh
grub-mkconfig -o /boot/grub/grub.cfg

Set the executable bit:

# chmod +x /bin/update-grub

There. Problem solved. You are now using Ubuntu.

---

"How to Succeed with Linux"

I have made a personal commitment not to reply in topics that start with a lowercase letter. Proper grammar and punctuation is a sign of respect, and if you do not show any, you will NOT receive any help (at least not from me).

oi_wtf

Member

From: /home/wtf

Registered: 2012-03-11

Posts: 191

Re: GRUB2: resume from disk and "update-grub"

I know that adding a

> resume /dev/disk/by-uuid/somecrazyuuid

to the boot line of the grub/menu.lst, but GRUB2 doesn't have this and relies on fancy scripts and a "/etc/default/grub" file for easy option editing (which is better IMHO).

How should I do this for GRUB2?

By adding that "resume=/dev/disk..." to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub
and don't forget to regenerate your grub.cfg, of course...

---

Laptop:   Arch Linux (x86_64) and Win10 (x86_64);  Intel Core i7-3630QM @ 2.40GHz, 8 GiB RAM, NViDiA GeForce GT 650M w/ 2 GiB
Desktop: Arch Linux (x86_64) and Win10 (x86_64);  Intel Core i7-4771  @ 3.50GHz, 32 GiB RAM, AMD Radeon RX 480 w/ 8 GiB

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: GRUB2: resume from disk and "update-grub"

If resume is still not working after adding the resume= stuff to the GRUB_CMDLINE_LINUX_DEFAULT, you may also need to add resume to the hooks in mkinicpio.  This was necessary for my Macbook, Thinkpad, and a ghetto HP desktop (all of the computers currently available to me).