Editing GNU GRUB (section)

===Development===
GRUB version 0 (also known as "GRUB Legacy") is no longer under development and is being phased out.<ref>[https://www.gnu.org/software/grub/grub-legacy.html GNU GRUB – GRUB Legacy] {{Webarchive|url=https://web.archive.org/web/20140420104228/http://www.gnu.org/software/grub/grub-legacy.html |date=April 20, 2014 }}. Gnu.org. Retrieved on 2012-12-01.</ref> The GNU GRUB developers have switched their focus to GRUB&nbsp;2,<ref>{{cite web |url=https://www.gnu.org/software/grub/grub-2.en.html |title=GNU GRUB – GRUB 2 |access-date=2014-04-18 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20080607115918/https://www.gnu.org/software/grub/grub-2.en.html |archive-date=June 7, 2008 |df=mdy-all}}.</ref> a [[rewrite (programming)|complete rewrite]] with goals including making GNU GRUB cleaner, more robust, more portable and more powerful. GRUB&nbsp;2 started under the name '''PUPA'''. PUPA was supported by the Information-technology Promotion Agency (IPA) in Japan. PUPA was integrated into GRUB&nbsp;2 development around 2002, when GRUB version 0.9x was renamed GRUB Legacy.

Some of the goals of the GRUB&nbsp;2 project include support for non-x86 [[computing platform|platforms]], [[internationalization and localization]], non-ASCII characters, dynamic modules, [[memory management]], a scripting [[mini-language]], migrating platform specific (x86) code to platform specific modules, and an object-oriented framework. GNU GRUB version 2.00 was officially released on June 26, 2012.<ref>{{cite mailing list |url=http://lists.gnu.org/archive/html/grub-devel/2012-06/msg00093.html |title=GRUB 2.00 released |date=June 28, 2012 |access-date=December 1, 2012 |mailing-list=grub-devel |first=Vladimir |last=Serbinenko |archive-date=January 13, 2013 |archive-url=https://web.archive.org/web/20130113150325/http://lists.gnu.org/archive/html/grub-devel/2012-06/msg00093.html |url-status=live }}</ref><ref>{{cite web|last=Larabel|first=Michael|title=GRUB 2.00 Boot-Loader Officially Released|url=https://www.phoronix.com/scan.php?page=news_item&px=MTEyODc|website=Phoronix.com|access-date=28 June 2012|archive-date=September 13, 2016|archive-url=https://web.archive.org/web/20160913072241/http://www.phoronix.com/scan.php?page=news_item&px=MTEyODc|url-status=live}}</ref>

Three of the most widely used [[Linux distribution]]s use GRUB&nbsp;2 as their mainstream boot loader.<ref>{{cite web |url=http://www.webjunction.org/documents/webjunction/An_Introduction_to_Ubuntu.html |title=An Introduction to Ubuntu |last=Haddon |first=Tom |date=26 January 2012 |publisher=WebJunction |access-date=21 September 2012 |url-status=dead |archive-url=https://web.archive.org/web/20121028160701/http://www.webjunction.org/documents/webjunction/An_Introduction_to_Ubuntu.html |archive-date=October 28, 2012 |df=mdy-all}}</ref><ref>{{cite web |url=http://www.techopedia.com/definition/15777/red-hat-enterprise-linux-rhel |title=What is Red Hat Enterprise Linux (RHEL)? |last=Janssen |first=Cory |publisher=Technopedia |access-date=21 September 2012 |archive-date=October 3, 2012 |archive-url=https://web.archive.org/web/20121003043553/http://www.techopedia.com/definition/15777/red-hat-enterprise-linux-rhel |url-status=live }}</ref><ref>{{cite web |url=http://www.itwire.com/business-it-news/open-source/56686-suse-chief-lists-progress-since-privatisation |title=SUSE chief lists progress since privatisation |last=Varghese |first=Sam |date=2012-09-20 |access-date=21 September 2012 |archive-date=September 22, 2012 |archive-url=https://web.archive.org/web/20120922122233/http://www.itwire.com/business-it-news/open-source/56686-suse-chief-lists-progress-since-privatisation |url-status=live }}</ref> [[Ubuntu (operating system)|Ubuntu]] adopted it as the default boot loader in its 9.10 version of October 2009.<ref>{{cite web|title=9.10 Karmic GRUB version|url=http://distrowatch.com/table.php?distribution=ubuntu|publisher=Distrowatch.com|access-date=8 July 2012|archive-date=May 9, 2012|archive-url=https://web.archive.org/web/20120509124455/http://distrowatch.com/table.php?distribution=ubuntu|url-status=live}}</ref> [[Fedora Linux|Fedora]] followed suit with Fedora 16 released in November 2011.<ref>[http://fedoraproject.org/wiki/GRUB_2 GRUB 2] {{Webarchive|url=https://web.archive.org/web/20120805080954/http://fedoraproject.org/wiki/GRUB_2 |date=August 5, 2012 }}. FedoraProject. Retrieved on 2012-12-01.</ref> [[OpenSUSE]] adopted GRUB&nbsp;2 as the default boot loader with its 12.2 release of September 2012.<ref>[http://en.opensuse.org/openSUSE:Upcoming_features openSUSE:Upcoming features – openSUSE] {{webarchive|url=https://web.archive.org/web/20120920065446/http://en.opensuse.org/openSUSE%3AUpcoming_features |date=September 20, 2012}}. En.opensuse.org. Retrieved on 2012-12-01.</ref> [[Solaris (operating system)|Solaris]] also adopted GRUB 2 on the x86 platform in the Solaris&nbsp;11.1 release.<ref>[http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris11-1-1845817.html Solaris 11.1] {{Webarchive|url=https://web.archive.org/web/20180619201612/http://www.oracle.com/technetwork/server-storage/solaris11/overview/solaris11-1-1845817.html |date=June 19, 2018 }}. Oracle Retrieved 2015-03-19.</ref> [[Buildroot]] also uses GNU GRUB for [[x86]] and [[X86-64|x86_64]] targets.

In late 2015, the exploit of pressing backspace 28 times to bypass the login password was found and quickly fixed.<ref>{{cite web |url=http://thehackernews.com/2015/12/hack-linux-grub-password.html |website=thehackernews.com |title=You can Hack into a Linux Computer just by pressing 'Backspace' 28 times |date=December 16, 2015 |first=Swati |last=Khandelwal |access-date=March 13, 2017 |archive-date=April 30, 2017 |archive-url=https://web.archive.org/web/20170430230510/http://thehackernews.com/2015/12/hack-linux-grub-password.html |url-status=live }}</ref><ref>{{cite web |url=http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html#exploit |title=Back to 28: Grub2 Authentication 0-Day |first1=Hector |last1=Marco and |first2=Ismael |last2=Ripoll |date=December 2015 |access-date=March 13, 2017 |archive-date=May 17, 2017 |archive-url=https://web.archive.org/web/20170517200459/http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html#exploit |url-status=live }}</ref>