null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
1206197
GRUB2
Description
Understanding the GRUB2 boot process
No tags specified
gnu/linux
grub2
lpic-1
lpic1
Mind Map by
Christo Candiotes
, updated more than 1 year ago
More
Less
Created by
Christo Candiotes
about 10 years ago
33
1
0
Resource summary
GRUB2
/boot/grub2/boot.cfg
automatically generated by grub-mkconfig
Use templates from
/etc/grub.d
00_header, 10_linux, 20_memtest86, 30_os-prober, 40_custom, 90_persistent
/etc/default/grub
Grub menu timeout, hidden menu, theme, background etc
Don't edit manually
IDE/SCSI drives count from Zero eg hd0,msdos1 is the first partition on the first drive
SATA Drives count from ONE eg sda1,msdos1 is the first partition on the first drive
boot image files /usr/lib/grub(2)/<cpu>-<platform> eg /usr/lib/grub2/i386-pc
Installation Types
MBR
Normally embedded between the MBR and the first partition (MBR Gap/ Embedding Area).
1st Partition should start min 63 sectors from start of disk. Newer drives aligned to larger boundries so reserve 1 MiB
GPT
Some newer systems use GUID Partition Table (Part of EFI)
Reserve whole partition for GRUB called BIOS Boot Partition
Recommend min 1MiB and partition type set to "bios_grob on" or "0xEF02"
TWO BOOT OPTIONS
Boot OS directly
grub> root (hd0,2)
Load the kernel and set root eg grub> linux /vmlinuz-2.6.32 ro root=UUID=<unique number of partition with OS>
Start Initial Ram Disk eg grub> initrd /initramfs-2.6.32.img
grub> boot
Chain-loading another boot loader
DOS / Win must be chainloaded
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
GNU/Linux
Yurani Salamanca
The Skeletal System - PE GCSE EdExcel
naomisargent
A Level: English language and literature technique = Dramatic terms
Jessica 'JessieB
Psychology flashcards memory
eharveyhudl
HRCI Glossary of Terms O-Z
Sandra Reed
Physical Description
Mónica Rodríguez
GCSE Science - B1 - You and Your Genes - Genes, Chromosomes and DNA
GeorgeHaines
An Inspector Calls- Quotes
ae14bh12
Introduction to the Atom
Sarah Egan
Repaso Revalida PR 2016
Rodrigo Lopez
AAHI_Card set 5 (Vital sign terminology)
Tafe Teachers SB
Browse Library