Manjaro Difference between revisions of "BIOS and UEFI"

Difference between revisions of "BIOS and UEFI"

From Manjaro
imported>Verityproductions
imported>Verityproductions
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=Unified Extensible Firmware Interface (UEFI)=
'''UEFI''' was introduced with Windows 8 as a replacement / upgrade to the BIOS system. One example of this upgrade is that it allows for computers to use hard-disks larger than 2 Terrabytes (2,000 Gigabytes). Unfortunately, UEFI was also secretly manipulated by Microsoft in tandem with certain hardware manufacturers to prevent - or at least make it very difficult - to remove and replace Windows 8 with another operating system.


=Basic Input / Output System (BIOS)=
For example, other - competing - operating systems must currently seek permission to be "authorised" by Microsoft in order to be installed on UEFI systems. This "feature" can be disabled, albeit after warnings about "security", as well as the need to enter in a code. Even then, the UEFI will likely be configured to ignore any other installed systems and boot into Windows 8 anyway. As UEFI systems still contain the old BIOS system, UEFI can be disabled or even removed completely to run in '''Legacy Mode'''. The author did so with a laptop using a 1 Terrabyte (TB) hard-disk, which the BIOS can handle.
{{tip|Some unpleasant hardware manufacturers have configured the BIOS to automatcially disable the screen backlight if Windows has been removed, resulting in a dim screen. A guide has been provided to '''[[Reactivating_the_Backlight|reactivate the backlight]]'''.}}
 
 
The '''GRUB''' is used to manage and boot up linux operating systems on computers that use the BIOS system. These are typically older computers or those that did not come with Windows 8 pre-installed. It is worthwhile noting that the UEFI can be disabled on many systems to run using the BIOS instead; this is known as running in '''Legacy Mode'''. Computers sold prior to the release and pre-installation of Windows 8 - which introduced '''UEFI''' - will therefore use the GRUB.


<div style="float: left; width: 50%">
<div style="float: left; width: 50%">




* [[Grub-Customizer]]
* [[UEFI - Disable Secure Boot]]
: ''Easily customize GRUB2 with the Grub-Customizer GUI tool.''
: ''Disable the "security" feature that prevents Microsoft's competitors from competing.''
</div>
</div>


Line 16: Line 14:




* [[Restore the GRUB Bootloader]]
* [[UEFI_-_Install_Guide|UEFI Installation Guide]]
: What to do if something goes wrong...''
: ''Overcome the odds!''
 
</div>
</div>
<div style="clear: both"></div>
<div style="clear: both"></div>




=Unified Extensible Firmware Interface (UEFI)=
'''UEFI''' was introduced with Windows 8 as a replacement / upgrade to the BIOS system. One example of this upgrade is that it allows for computers to use hard-disks larger than 2 Terrabytes (2,000 Gigabytes). Unfortunately, UEFI was also secretly manipulated by Microsoft in tandem with certain hardware manufacturers to prevent - or at least make it very difficult - to remove and replace Windows 8 with another operating system.


For example, other - competing - operating systems must currently seek permission to be "authorised" by Microsoft in order to be installed on UEFI systems. This "feature" can be disabled, albeit after warnings about "security", as well as the need to enter in a code. Even then, the UEFI will likely be configured to ignore any other installed systems and boot into Windows 8 anyway. As UEFI systems still contain the old BIOS system, UEFI can be disabled or even removed completely to run in '''Legacy Mode'''. The author did so with a laptop using a 1 Terrabyte (TB) hard-disk, which the BIOS can handle.
=Basic Input / Output System (BIOS)=
{{tip|Some unpleasant hardware manufacturers have configured the BIOS to automatcially disable the screen backlight if Windows has been removed, resulting in a dim screen. A guide has been provided to '''[[Reactivating_the_Backlight|reactivate the backlight]]'''.}}
 
 
The '''GRUB''' is used to manage and boot up linux operating systems on computers that use the BIOS system. These are typically older computers or those that did not come with Windows 8 pre-installed. It is worthwhile noting that the UEFI can be disabled on many systems to run using the BIOS instead; this is known as running in '''Legacy Mode'''. Computers sold prior to the release and pre-installation of Windows 8 - which introduced '''UEFI''' - will therefore use the GRUB.


<div style="float: left; width: 50%">
<div style="float: left; width: 50%">




* [[UEFI_-_Install_Guide|UEFI Installation Guide]]
* [[Grub-Customizer]]
: ''Overcome the odds!''
: ''Easily customize GRUB2 with the Grub-Customizer GUI tool.''
</div>
</div>


<div style="float: right; width: 50%">
<div style="float: right; width: 50%">


* [[Restore the GRUB Bootloader]]
: What to do if something goes wrong...''


</div>
</div>
<div style="clear: both"></div>
<div style="clear: both"></div>

Revision as of 13:46, 9 November 2013

Unified Extensible Firmware Interface (UEFI)

UEFI was introduced with Windows 8 as a replacement / upgrade to the BIOS system. One example of this upgrade is that it allows for computers to use hard-disks larger than 2 Terrabytes (2,000 Gigabytes). Unfortunately, UEFI was also secretly manipulated by Microsoft in tandem with certain hardware manufacturers to prevent - or at least make it very difficult - to remove and replace Windows 8 with another operating system.

For example, other - competing - operating systems must currently seek permission to be "authorised" by Microsoft in order to be installed on UEFI systems. This "feature" can be disabled, albeit after warnings about "security", as well as the need to enter in a code. Even then, the UEFI will likely be configured to ignore any other installed systems and boot into Windows 8 anyway. As UEFI systems still contain the old BIOS system, UEFI can be disabled or even removed completely to run in Legacy Mode. The author did so with a laptop using a 1 Terrabyte (TB) hard-disk, which the BIOS can handle.


Disable the "security" feature that prevents Microsoft's competitors from competing.


Overcome the odds!


Basic Input / Output System (BIOS)

Tip
Some unpleasant hardware manufacturers have configured the BIOS to automatcially disable the screen backlight if Windows has been removed, resulting in a dim screen. A guide has been provided to reactivate the backlight.


The GRUB is used to manage and boot up linux operating systems on computers that use the BIOS system. These are typically older computers or those that did not come with Windows 8 pre-installed. It is worthwhile noting that the UEFI can be disabled on many systems to run using the BIOS instead; this is known as running in Legacy Mode. Computers sold prior to the release and pre-installation of Windows 8 - which introduced UEFI - will therefore use the GRUB.


Easily customize GRUB2 with the Grub-Customizer GUI tool.


What to do if something goes wrong...
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