BIOS boot partition

BIOS boot partition

The BIOS boot partition is a partition on a data storage device that GNU GRUB uses on legacy BIOS-based personal computers in order to boot an operating system, when the actual boot device contains a GUID Partition Table (GPT). Such a layout is sometimes referred to as BIOS/GPT boot.

Comment
enThe BIOS boot partition is a partition on a data storage device that GNU GRUB uses on legacy BIOS-based personal computers in order to boot an operating system, when the actual boot device contains a GUID Partition Table (GPT). Such a layout is sometimes referred to as BIOS/GPT boot.
Depiction
GNU GRUB components.svg
Has abstract
enThe BIOS boot partition is a partition on a data storage device that GNU GRUB uses on legacy BIOS-based personal computers in order to boot an operating system, when the actual boot device contains a GUID Partition Table (GPT). Such a layout is sometimes referred to as BIOS/GPT boot. A BIOS boot partition is needed on GPT-partitioned storage devices to hold the second stages of GRUB. On traditional MBR-partitioned devices, the disk sectors immediately following the first are usually unused, as the partitioning scheme does not designate them for any special purpose and partitioning tools avoid them for alignment purposes. On GPT-based devices, the sectors hold the actual partition table, necessitating the use of an extra partition. On MBR-partitioned disks, boot loaders are usually implemented so the portion of their code stored within the MBR, which cannot hold more than 512 bytes, operates as a first stage that serves primarily to load a more sophisticated second stage, which is, for example, capable of reading and loading an operating system kernel from a file system.
Hypernym
Partition
Is primary topic of
BIOS boot partition
Label
enBIOS boot partition
Link from a Wikipage to an external page
www.rodsbooks.com/gdisk/bios.html
www.gnu.org/software/grub/manual/html_node/BIOS-installation.html%23BIOS-installation
www.rodsbooks.com/gdisk/booting.html
www.funtoo.org/wiki/GUID_Booting_Guide
www.rodsbooks.com/gdisk/
Link from a Wikipage to another Wikipage
1 MB partition alignment
Advanced Format
BIOS
Boot device
Booting
Boot loader
Category:BIOS
Category:Disk partitions
Cfdisk
Data storage device
Disk sector
EFI system partition
Extensible Firmware Interface
Fdisk
File:GNU GRUB components.svg
File system
Globally unique identifier
GNU GRUB
GNU Parted
GParted
GUID Partition Table
Master Boot Record
NetBSD
Operating system
Operating system kernel
Partition (computing)
Personal computer
RAID
Solid-state drive
Unified Extensible Firmware Interface
Windows To Go
SameAs
4UgUi
BIOS boot partition
BIOS-Bootpartition
m.012200h0
Q4835707
Subject
Category:BIOS
Category:Disk partitions
Thumbnail
GNU GRUB components.svg?width=300
WasDerivedFrom
BIOS boot partition?oldid=1061580877&ns=0
WikiPageLength
5575
Wikipage page ID
15865847
Wikipage revision ID
1061580877
WikiPageUsesTemplate
Template:Citation needed
Template:Mono
Template:Refimprove
Template:Reflist
Template:Samp
Template:Short description