====== lilo bootloader ======


LILO (Linux Loader) is a boot loader for Linux and the default bootloader for non EFI slackware installs.

we need multiple kernels to boot. whether you run stable or -current you want to always have a known working kernel to fall back on. first we will install the kernels of your choice using slackupdr

[[https://wigums.ddns.net/dokuwiki/doku.php?id=slackupdr|slackupdr]]

once your kernels are installed edit lilo.conf

<code>nano /etc/lilo/conf</code>

find the kernel stanza and we will expand it to include the new kernels. we are also going to add boot entries for huge versus generic kernels. find this stanza

<code># Linux bootable partition config begins
image = /boot/vmlinuz
  root = /dev/sda2
  label = huge
  read-only</code>

we will add stanzas for the kernels we've installed

here is a default lilo.conf as generated by liloconfig

<code># LILO configuration file
# generated by 'liloconfig'
#
# Start LILO global section
# Append any additional kernel parameters:
append=" "

boot = /dev/sda
# This option loads the kernel and initrd much faster:
compact

# Boot BMP Image.
# Bitmap in BMP format: 640x480x8
  bitmap = /boot/slack.bmp
# Menu colors (foreground, background, shadow, highlighted
# foreground, highlighted background, highlighted shadow):
  bmp-colors = 255,0,255,0,255,0
# Location of the option table: location x, location y, number of
# columns, lines per column (max 15), "spill" (this is how many
# entries must be in the first column before the next begins to
# be used. We don't specify it here, as there's just one column.
  bmp-table = 60,6,1,16
# Timer location x, timer location y, foreground color,
# background color, shadow color.
  bmp-timer = 65,27,0,255

# Standard menu.
# Or, you can comment out the bitmap menu above and 
# use a boot message with the standard menu:
#message = /boot/boot_message.txt

# Wait until the timeout to boot (if commented out, boot the
# first entry immediately):
prompt
# Timeout before the first entry boots.
# This is given in tenths of a second, so 600 for every minute:
timeout = 1200
# Override dangerous defaults that rewrite the partition table:
change-rules
  reset
# Normal VGA console
vga = normal
# Ask for video mode at boot (time out to normal in 30s)
#vga = ask
# VESA framebuffer console @ 1024x768x64k
#vga=791
# VESA framebuffer console @ 1024x768x32k
#vga=790
# VESA framebuffer console @ 1024x768x256
#vga=773
# VESA framebuffer console @ 800x600x64k
#vga=788
# VESA framebuffer console @ 800x600x32k
#vga=787
# VESA framebuffer console @ 800x600x256
#vga=771
# VESA framebuffer console @ 640x480x64k
#vga=785
# VESA framebuffer console @ 640x480x32k
#vga=784
# VESA framebuffer console @ 640x480x256
#vga=769
# End LILO global section
# Linux bootable partition config begins
image = /boot/vmlinuz
  root = /dev/sda2
  label = Linux
  read-only
# Linux bootable partition config ends</code>

<code>prompt
timeout=50
boot=/dev/sda
root=/dev/sda2
lba32
compact
bitmap = /boot/Slackware_Moonboot.bmp
bmp-colors = 255,0,255,0,255,0
bmp-table = 60,6,1,16
bmp-timer = 65,27,0,255
append="mitigations=off"
vga=normal
default=Gen6.9.1
image=/boot/vmlinuz-generic-6.6.30
  label=Gen6.6.30
  initrd=/boot/initrd-6.6.30.gz
  read-only
image=/boot/vmlinuz-generic-6.9.1
  label=Gen6.9.1
  initrd=/boot/initrd-6.9.1.gz
  read-only
image=/boot/vmlinuz-huge-6.6.30
  label=Hug6.6.30
  read-only
image=/boot/vmlinuz-huge-6.9.1
  label=Hug6.9.1
  read-only

</code>