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{{Root|grub-install --recheck --no-floppy /dev/sda}}
{{Root|grub-install --recheck --no-floppy /dev/sda}}
==== Special, hardware RAID (HP Smart Array CCISS) ====
{{Root|grub-install --recheck --no-floppy /dev/cciss/c0d0}}
/sbin/grub-setup: warn: Your embedding area is unusually small.  core.img won't fit in it..
/sbin/grub-setup: warn: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
/sbin/grub-setup: error: will not proceed with blocklists.
{{Root|grub-install --recheck --no-floppy /dev/cciss/c0d0 --force}}
/sbin/grub-setup: warn: Your embedding area is unusually small.  core.img won't fit in it..
/sbin/grub-setup: warn: Embedding is not possible.  GRUB can only be installed in this setup by using blocklists.  However, blocklists are UNRELIABLE and their use is discouraged..
Installation finished. No error reported.


=== Configuration ===
=== Configuration ===
Line 63: Line 49:
}
}
submenu 'Advanced options for Exherbo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
submenu 'Advanced options for Exherbo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
menuentry 'Exherbo GNU/Linux, current kernel (recovery mode)' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
menuentry 'Exherbo GNU/Linux, current kernel (recovery mode)' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-advanced-current-recovery-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
load_video
load_video
insmod gzio
insmod gzio
Line 77: Line 63:
linux  /vmlinuz root=/dev/sda3 ro single
linux  /vmlinuz root=/dev/sda3 ro single
}
}
menuentry 'Exherbo GNU/Linux, previous kernel' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
menuentry 'Exherbo GNU/Linux, previous kernel' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-advanced-previous-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
load_video
load_video
insmod gzio
insmod gzio
Line 91: Line 77:
linux  /vmlinuz.old root=/dev/sda3 ro
linux  /vmlinuz.old root=/dev/sda3 ro
}
}
menuentry 'Exherbo GNU/Linux, previous kernel (recovery mode)' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
menuentry 'Exherbo GNU/Linux, previous kernel (recovery mode)' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-advanced-previous-recovery-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
load_video
load_video
insmod gzio
insmod gzio
Line 105: Line 91:
linux  /vmlinuz.old root=/dev/sda3 ro single
linux  /vmlinuz.old root=/dev/sda3 ro single
}
}
}
</pre>
}}
==== Special, hardware RAID (HP Smart Array CCISS) ====
{{File|/etc/grub.d/40_custom|
<pre>
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry 'GNU/Linux, current kernel' --class gnu-linux --class gnu --class os {
        load_video
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root b3727853-ae78-4a00-b21c-7b974c233e1c
        echo    'Loading Linux ...'
        linux  /vmlinuzo root=/dev/cciss/c0d0p3 ro
}
menuentry 'GNU/Linux, current kernel (recovery mode)' --class gnu-linux --class gnu --class os {
        load_video
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root b3727853-ae78-4a00-b21c-7b974c233e1c
        echo    'Loading Linux ...'
        linux  /vmlinuz root=/dev/cciss/c0d0p3 ro single
}
menuentry 'GNU/Linux, previous kernel' --class gnu-linux --class gnu --class os {
        load_video
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root b3727853-ae78-4a00-b21c-7b974c233e1c
        echo    'Loading Linux ...'
        linux  /vmlinuz.old root=/dev/cciss/c0d0p3 ro
}
menuentry 'GNU/Linux, previous kernel (recovery mode)' --class gnu-linux --class gnu --class os {
        load_video
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root b3727853-ae78-4a00-b21c-7b974c233e1c
        echo    'Loading Linux ...'
        linux  /vmlinuz.old root=/dev/cciss/c0d0p3 ro single
}
}
</pre>
</pre>

Revision as of 18:11, 13 March 2012

GRUB 2

Packages

Exherbo: sys-boot/grub

Gentoo: sys-boot/grub

Installation

# mount /boot

Standard, single drive (SATA/IDE/SCSI)

# grub-install --recheck --no-floppy /dev/sda

Configuration

Note: Manual grub2 configuration should always happen in /etc/default/grub and /etc/grub.d/40_custom.
File: /etc/default/grub
GRUB_DISTRIBUTOR="Exherbo"
GRUB_DEFAULT="Exherbo GNU/Linux, current kernel"

Standard, single drive (SATA/IDE/SCSI)

File: /etc/grub.d/40_custom
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry 'Exherbo GNU/Linux, current kernel' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
	load_video
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
	else
	  search --no-floppy --fs-uuid --set=root 5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
	fi
	echo    'Loading Linux ...'
	linux   /vmlinuz root=/dev/sda3 ro
}
submenu 'Advanced options for Exherbo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
	menuentry 'Exherbo GNU/Linux, current kernel (recovery mode)' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-advanced-current-recovery-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
		load_video
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
		else
		  search --no-floppy --fs-uuid --set=root 5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
		fi
		echo    'Loading Linux ...'
		linux   /vmlinuz root=/dev/sda3 ro single
	}
	menuentry 'Exherbo GNU/Linux, previous kernel' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-advanced-previous-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
		load_video
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
		else
		  search --no-floppy --fs-uuid --set=root 5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
		fi
		echo    'Loading Linux ...'
		linux   /vmlinuz.old root=/dev/sda3 ro
	}
	menuentry 'Exherbo GNU/Linux, previous kernel (recovery mode)' --class exherbo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-advanced-previous-recovery-010c7d23-2031-4c4b-b0e2-3fddbcd9bf61' {
		load_video
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos1'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
		else
		  search --no-floppy --fs-uuid --set=root 5e056c75-61b4-42a5-8dd8-9fefd5f5b7fb
		fi
		echo    'Loading Linux ...'
		linux   /vmlinuz.old root=/dev/sda3 ro single
	}
}

Generate grub.cfg

Warning: Running the following command will overwrite any changes in grub.cfg you manually made.
# grub-mkconfig -o /boot/grub/grub.cfg
# umount /boot

Updating Grub 2

# mount /boot
# grub-install --recheck --no-floppy /dev/sda
# grub-mkconfig -o /boot/grub/grub.cfg
# umount /boot

Optional: Additional Kernel Parameters

File: /etc/default/grub
GRUB_CMDLINE_LINUX="acpi=off"

Regenerate your grub.cfg for the changes to take effect.

# mount /boot
# grub-mkconfig -o /boot/grub/grub.cfg
# umount /boot

Optional: Theme

File: /etc/default/grub
GRUB_TERMINAL_OUTPUT=gfxterm
GRUB_THEME=/boot/grub2/themes/starfield/theme.txt

Regenerate your grub.cfg for the changes to take effect.

# mount /boot
# grub-mkconfig -o /boot/grub/grub.cfg
# umount /boot

Optional: Serial Console

File: /etc/default/grub
GRUB_TERMINAL=serial
GRUB_SERIAL=COMMAND="serial --unit=0 --speed=57600 --word=8 --parity=no --stop=1"
GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,57600"

Regenerate your grub.cfg for the changes to take effect.

# mount /boot
# grub-mkconfig -o /boot/grub/grub.cfg
# umount /boot

If you want to be able to login to your system via the serial console you need to edit /etc/inittab.

File: /etc/inittab

Uncomment the s0 entry and change the speed to your needs. 

# SERIAL CONSOLES
s0:12345:respawn:/sbin/agetty 57600 ttyS0 vt100
#s1:12345:respawn:/sbin/agetty 9600 ttyS1 vt100
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