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Guy Harris (talk | contribs) →Bootloader stage: Put back the original access date (which is unlikely to be correct, as the Wayback Machine shows that URL as a redirect to some top-level page even *before* that access date, but that's the time the *original page*, not the *archived page* was accessed). |
Guy Harris (talk | contribs) →Bootloader stage: Put back the original date as well, even though it is unlikely for the same reason that the original access date is. |
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* [[LILO (boot loader)|LILO]] does not understand or parse filesystem layout. Instead, a configuration file (<code>/etc/lilo.conf</code>) is created in a live system which maps raw offset information (mapper tool) about ___location of kernel and ram disks (initrd or initramfs). The configuration file, which includes data such as boot [[Disk partitioning|partition]] and [[Kernel (computer science)|kernel]] pathname for each, as well as customized options if needed, is then written together with bootloader code into MBR bootsector. When this bootsector is read and given control by BIOS, LILO loads the menu code and draws it then uses stored values together with user input to calculate and load the Linux kernel or [[Chain loading|chain-load]] any other [[Booting#Boot-loader|boot-loader]].
* GRUB 1 includes logic to read common file systems at run-time in order to access its configuration file.<ref name="redhat_startup">{{cite web|url=http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-boot-init-shutdown-process.html |archive-url=https://web.archive.org/web/20080830065326/http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/s1-boot-init-shutdown-process.html |url-status=dead |archive-date=2008-08-30 |title=Product Documentation |publisher=Redhat.com |date=
* [[Loadlin]] is a bootloader that can replace a running [[DOS]] or [[Windows 9x]] kernel with the Linux kernel at run time. This can be useful in the case of hardware that needs to be switched on via software and for which such configuration programs are proprietary and only available for DOS. This booting method is less necessary nowadays, as Linux has drivers for a multitude of hardware devices, but it has seen some use in [[mobile device]]s. Another use case is when the Linux is located on a storage device which is not available to the BIOS for booting: DOS or Windows can load the appropriate drivers to make up for the BIOS limitation and boot Linux from there.
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