qLinux
… a distribution study


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Grub-2.06

Reference: 8.59. GRUB-2.06. For the first steps it is fine to create an menu entry in the host's boot loader. However, for an independent system we use grub as boot manager. Apply a patch to fix the build system:

patch -Np1 -i grub-2.06-bld-20220316.patch

Apply a patch to fix the sources:

patch -Np1 -i grub-2.06-src-20220316.patch

The above patch fixes the sources so that grub builds and works for qLinux from scratch. Using it to boot other OS' may work but it is not tested nor guaranteed.

./configure --prefix=/qlnx \
            --datarootdir=/qlnx/dat \
            --sbindir=/qlnx/bin \
            --disable-rpath \
            --with-bootdir=/qlnx/etc/.boot \
            --disable-efiemu

Build and install grub1):

make
make install

Change the mode of the admin executables:

cd /qlnx/bin
for f in grub-bios-setup grub-macbless grub-ofpathname grub-reboot grub-sparc64-setup grub-install grub-mkconfig grub-probe grub-set-default; do
  chmod 0750 $f
done

Move the bash completion file into the right location:

mv -v /qlnx/etc/bash_completion.d/grub /qlnx/dat/bash-completion/completions/
rmdir /qlnx/etc/bash_completion.d

Configuration

The file  default/grub  is now in  /qlnx/etc/grub.d . The /boot directory is  /qlnx/etc/.boot . Install grub at the qLinux device, here  sdb .

grub-install /qlnx/dev/sdb

Now you can run  grub-mkconfig  to create an template of  grub.cfg . But as DIY (wo)man we need one simple entry only:

menuentry qLinux {

#set root = (hd1,msdos1)
linux (hd1,msdos1)/qlnx/etc/.boot/bzImage root=(hd1,msdos1)
initrd (hd1,msdos1)/qlnx/etc/.boot/initrd.img
}

On the host setup an entry for chain loading, similar like:

menuentry "qLinux chain" {
	insmod chain
	set root=(hd1,1)
	chainloader +1
}

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Create an Initramfs

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Reboot and Finish

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