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37 lines
1.4 KiB
Text
37 lines
1.4 KiB
Text
[[adding-other-operating-systems-grub2]]
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= Adding other operating systems to the GRUB2 menu
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Normally, *GRUB2* is preset to boot multiple operating systems during the Fedora installation process. If you can, it is advisable to install non-Linux operating systems first. Then, during the installation process, all those operating systems and their locations will be discovered and properly set.
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Adding other records into the *GRUB2* menu only means to run `grub2-mkconfig` command to regenerate the configuration files. During this process, all operating systems known to the system will be added into the configuration. By reinstalling *GRUB2*, this configuration will be used for further boots.
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.Before you start
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* Make sure that the operating systems are on disks, connected to the system.
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* You have the `os-prober` package installed.
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.Procedure
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. Recreate the *GRUB2* configuration file.
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+
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----
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# grub2-mkconfig -o /boot/grub2/grub.cfg
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----
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. Install *GRUB2*.
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* On UEFI systems.
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+
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----
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# dnf reinstall shim-* grub2-efi-* grub2-common
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----
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* On BIOS systems, specify the disk where the bootloader should be installed.
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+
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----
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# grub2-install /dev/sda
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----
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.More information
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* The `grub2-mkconfig` command will add entries for all operating systems it can find.
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* When problems appear, see the link:https://www.gnu.org/software/grub/manual/grub/grub.html#Multi_002dboot-manual-config[GRUB manual] to solve issues with booting secondary operating systems.
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