11.4.
Colo-1.22
This bootloader is for the MIPS based cobalt servers RaQ, RaQ2,
Qube, or the Qube2.
11.4.1. Installation of Colo
This patch updates the Colo bootloader to build under
cross-compiled conditions:
patch -Np1 -i ../colo-1.22-make_fix-1.patch
This patch fixes a relocation error when linking with Binutils:
patch -Np1 -i ../colo-1.22-relocation_fix-1.patch
Compile the Colo package:
make CROSS_COMPILE="${CLFS_TARGET}-" binary
make CROSS_COMPILE="${CLFS_TARGET}-" tooldirs
Install the package:
install -v tools/lcdtools/e2fsck-lcd/e2fsck-lcd ${CLFS}/sbin
install -v tools/lcdtools/e2fsck-lcd/e2fsck-lcd.8 ${CLFS}/usr/man/man8
install -v tools/lcdtools/paneld/paneld ${CLFS}/sbin
install -v tools/lcdtools/paneld/paneld.8 ${CLFS}/usr/man/man8
install -v tools/lcdtools/putlcd/putlcd ${CLFS}/sbin
install -v tools/lcdtools/putlcd/putlcd.8 ${CLFS}/usr/man/man8
cp -v chain/colo-chain.elf ${CLFS}/boot/vmlinux
gzip -9 ${CLFS}/boot/vmlinux
11.4.2. Configuration of Colo
Your shiny new CLFS system is almost complete. One of the last
things to do is ensure you can boot it. The instructions below
apply only to Cobalt RaQ1/RaQ2/Cube2 servers. Information on
“boot loading” for other
architectures should be available in the usual resource-specific
locations for those architectures.
Boot loading can be a complex area, so a few cautionary words are
in order. Be familiar with the current boot loader and any other
operating systems present on the hard drive(s) that need to be
bootable. Make sure that an emergency boot disk is ready to
“rescue” the computer if the
computer becomes unusable (un-bootable).
Earlier, we compiled and installed the Cobalt boot loader software
in preparation for this step. Now we will configure our system to
boot using Colo. Here is a simple default.colo to use.
cat > /boot/default.colo << EOF
#:CoLo:#
#
# load linux
#
lcd 'Booting 2.6.38.2...'
load vmlinux-2.6.38.2.gz
execute root=/dev/hda2 console=ttyS0,115200 ide1=noprobe
EOF
The FHS stipulates that the bootloader's configuration file should
be symlinked to /etc/{Bootloader
Name}. To satisfy this requirement for Colo, issue the
following command:
mkdir -v ${CLFS}/etc/colo &&
ln -sv ../boot/colo/default.colo ${CLFS}/etc/colo
11.4.3. Kernel Configuration for Colo
To help keep our system small Colo allows us to compress our
kernel. The followings step will show you how to compress the
kernel the way colo expects it:
gzip -9 ${CLFS}/boot/vmlinux-2.6.38.2
11.4.4. Contents of
Colo
Installed programs:
colo-chain.elf, e2fsck-lcd, paneld and
putlcd
Short Descriptions
|
colo
|
Is the Cobalt Bootloader's chain mode executeable. This
file gets gzipped and renamed to vmlinux.gz, so it can be booted
automatically by the Cobalt's existing firmware
|
|
e2fsck-lcd
|
Will output file system check progress information on the
Cobalt LCD
|
|
paneld
|
Is an admin tool for the LCD panel of Cobalt machines. By
default, it will display the current time and optionally
a message. When you hold the enter or select button for a
couple of seconds you will get an admin menu. The menu
will allow you to either halt or reboot your Cobalt
machine
|
|
putlcd
|
Is a tool to display text on the LCD display of Cobalt
machines
|