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Difference between revisions of "Install/Bootloader"
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Next, edit {{c|/etc/boot.conf}} using {{c|nano}} and specify "{{c|Funtoo Linux genkernel}}" as the {{c|default}} setting at the top of the file, replacing {{c|"Funtoo Linux"}} | Next, edit {{c|/etc/boot.conf}} using {{c|nano}} and specify "{{c|Funtoo Linux genkernel}}" as the {{c|default}} setting at the top of the file, replacing {{c|"Funtoo Linux"}}. | ||
== boot.conf Configuration == | |||
Most users, particularly those who plan on setting up a graphical environment, will want to remove {{c|nomodeset}} from {{c|params}} in {{f|/etc/make.conf}}. This option is in {{c|/etc/boot.conf}} by default because it ensures that the initial console login prompt will appear for all users upon reboot, regardless of graphics card (some graphics cards have issues with kernel mode setting which results in a blank screen after reboot.) | |||
{{Important|Linux kernel video graphics "mode setting capability" ''is required'' for all graphics drivers except for the proprietary NVIDIA drivers. So most users will want to ''remove'' the {{c|nomodeset}} option from {{c|params}} prior to setting up their graphical environment!}} | |||
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{{c|/etc/boot.conf}} should now look like this: | {{c|/etc/boot.conf}} should now look like this: | ||
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} | } | ||
"Funtoo Linux" { | "Funtoo Linux" { | ||
kernel bzImage[-v] | kernel bzImage[-v] | ||
} | } | ||
"Funtoo Linux genkernel" { | "Funtoo Linux genkernel" { | ||
kernel kernel[-v] | kernel kernel[-v] | ||
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params += real_root=auto rootfstype=auto nomodeset | params += real_root=auto rootfstype=auto nomodeset | ||
} | } | ||
}} | }} | ||
Revision as of 21:32, September 9, 2019
Install Guide: Bootloader
| Install Guide, Chapter 14 | < Prev | Next > |
These install instructions show you how to use GRUB to boot using BIOS (legacy) or UEFI.
ego boot update (ego boot) is installed by default, but GRUB is not, as it is not required for all Funtoo Linux systems (such as containers, for example.) But for booting on bare metal, it is the recommended and best-supported boot loader, so you will need to emerge it:
chroot # emerge -av grub
Next, edit /etc/boot.conf using nano and specify "Funtoo Linux genkernel" as the default setting at the top of the file, replacing "Funtoo Linux".
boot.conf Configuration
Most users, particularly those who plan on setting up a graphical environment, will want to remove nomodeset from params in /etc/make.conf. This option is in /etc/boot.conf by default because it ensures that the initial console login prompt will appear for all users upon reboot, regardless of graphics card (some graphics cards have issues with kernel mode setting which results in a blank screen after reboot.)
Linux kernel video graphics "mode setting capability" is required for all graphics drivers except for the proprietary NVIDIA drivers. So most users will want to remove the nomodeset option from params prior to setting up their graphical environment!
/etc/boot.conf should now look like this:
/etc/boot.conf boot {
generate grub
default "Funtoo Linux genkernel"
timeout 3
}
"Funtoo Linux" {
kernel bzImage[-v]
}
"Funtoo Linux genkernel" {
kernel kernel[-v]
initrd initramfs[-v]
params += real_root=auto rootfstype=auto nomodeset
}
If you are booting a custom or non-default kernel, please read man boot.conf for information on the various options available to you.
Intel Microcode
ego boot will ensure that you have the most recent Intel CPU microcode installed on your system if you emerge the
following packages:
chroot # emerge intel-microcode iucode_tool
This is not necessary for AMD systems.
Old School (BIOS) MBR
When using "old school" BIOS booting, run the following command to install GRUB to your MBR, and generate the /boot/grub/grub.cfg configuration file that GRUB will use for booting:
chroot # grub-install --target=i386-pc --no-floppy /dev/sda chroot # ego boot update
New School (UEFI) Boot Entry
If you're using "new school" UEFI booting, run of the following sets of commands, depending on whether you are installing a 64-bit or 32-bit system. This will add GRUB as a UEFI boot entry.
For x86-64bit systems:
chroot # mount -o remount,rw /sys/firmware/efi/efivars chroot # grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id="Funtoo Linux [GRUB]" --recheck /dev/sda chroot # ego boot update
For x86-32bit systems:
chroot # mount -o remount,rw /sys/firmware/efi/efivars chroot # grub-install --target=i386-efi --efi-directory=/boot --bootloader-id="Funtoo Linux [GRUB]" --recheck /dev/sda chroot # ego boot update
First Boot, and in the future...
OK -- you are almost ready to boot!
You only need to run grub-install when you first install Funtoo Linux, but you need to re-run ego boot update every time you modify your /etc/boot.conf file or add new kernels to your system. This will regenerate /boot/grub/grub.cfg so that you will have new kernels available in your GRUB boot menu, the next time you reboot.
| Install Guide, Chapter 14 | < Prev | Next > |