tftpboot/scripts/make_debian_initrd_with_fir...

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#!/bin/bash
# Purpose {{{
# This script will build a new initrd with some extra firmwares.
# 1. Download Debian initrd (Bullseye, Buster, Stretch and Sid)
# 2. Download firmwares
# * bnx2
# * all non-free (for tigon)
# * Myricom for IBM
# * qlogic
# * iwlwifi (Intel WiFi for user's laptop)
# 3. Extract everything
# 4. Build a new initrd with everything and compress with XZ
# }}}
# Vars {{{
readonly PROGNAME=$(basename "${0}")
readonly NBARGS="${#}"
[ -z "${DEBUG}" ] && DEBUG=1
## Export DEBUG for sub-script
export DEBUG
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# Default value for TFTP's directory
if command -v in.tftpd > /dev/null; then
source /etc/default/tftpd-hpa
else
TFTP_DIRECTORY="/srv/tftp"
fi
FIRM_BNX2_DEB_URL_DEFAULT="http://deb.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-bnx2_0.43_all.deb"
FIRM_NONFREE_DEB_URL_DEFAULT="http://deb.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-linux-nonfree_0.43_all.deb"
FIRM_MYRICOM_DEB_URL_DEFAULT="http://deb.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-myricom_0.43_all.deb"
FIRM_QLOGIC_DEB_URL_DEFAULT="http://deb.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-qlogic_0.43_all.deb"
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FIRM_IWLWIFI_DEB_URL_DEFAULT="http://ftp.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-iwlwifi_20210818-1~bpo11+1_all.deb"
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## Colors
readonly PURPLE='\033[1;35m'
readonly RED='\033[0;31m'
readonly RESET='\033[0m'
readonly COLOR_DEBUG="${PURPLE}"
# }}}
usage() { # {{{
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cat <<- EOF
usage: $PROGNAME [-d|-h]
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This script will build a new Debian initrd with extra firmwares for
"all" Debian's releases.
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EXAMPLES:
- Build Debian's initrd to default place (${TFTP_DIRECTORY})
${PROGNAME}
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OPTIONS:
-d,--debug
Enable debug messages.
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-h,--help
Print this help message.
EOF
}
# }}}
debug_message() { # {{{
local_message="${1}"
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## Print message if DEBUG is enable (=0)
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG ${PROGNAME}: ${local_message}"
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return 0
}
# }}}
error_message() { # {{{
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local_error_message="${1}"
local_error_code="${2}"
## Print message
printf '%b\n' "ERROR ${PROGNAME}: ${RED}${local_error_message}${RESET}"
exit "${local_error_code:=66}"
}
# }}}
define_vars() { # {{{
# If firm_bnx2_deb_url wasn't defined (argument) {{{
if [ -z "${firm_bnx2_deb_url}" ]; then
## Use default value
firm_bnx2_deb_url="${FIRM_BNX2_DEB_URL_DEFAULT}"
fi
# }}}
# If firm_nonfree_deb_url wasn't defined (argument) {{{
if [ -z "${firm_nonfree_deb_url}" ]; then
## Use default value
firm_nonfree_deb_url="${FIRM_NONFREE_DEB_URL_DEFAULT}"
fi
# }}}
# If firm_myricom_deb_url wasn't defined (argument) {{{
if [ -z "${firm_myricom_deb_url}" ]; then
## Use default value
firm_myricom_deb_url="${FIRM_MYRICOM_DEB_URL_DEFAULT}"
fi
# }}}
# If firm_qlogic_deb_url wasn't defined (argument) {{{
if [ -z "${firm_qlogic_deb_url}" ]; then
## Use default value
firm_qlogic_deb_url="${FIRM_QLOGIC_DEB_URL_DEFAULT}"
fi
# }}}
# If firm_iwlwifi_deb_url wasn't defined (argument) {{{
if [ -z "${firm_iwlwifi_deb_url}" ]; then
## Use default value
firm_iwlwifi_deb_url="${FIRM_IWLWIFI_DEB_URL_DEFAULT}"
fi
# }}}
}
# }}}
download_file() { # {{{
local_url="${1}"
local_dest_file="${2}"
## If the destination file is empty
if [ -z "${local_dest_file}" ]; then
debug_message "download_file \
Download ${local_url} in the current directory."
wget --quiet "${local_url}"
else
debug_message "download_file \
Download ${local_url} to ${RED}${local_dest_file}${COLOR_DEBUG} ."
wget --quiet "${local_url}" --output-document="${local_dest_file}"
fi
## Unset variables
unset local_url
unset local_dest_file
}
# }}}
is_file_empty() { # {{{
local_file="${1}"
## File is empty by default
return_is_file_empty="0"
### Check if the file is empty
if [ ! -s "${local_file}" ]; then
return_is_file_empty="0"
debug_message "is_file_empty \
The file ${RED}${local_file}${COLOR_DEBUG} is empty or doesn't exists."
else
return_is_file_empty="1"
debug_message "is_file_empty \
The file ${RED}${local_file}${COLOR_DEBUG} exists and has a size greater than zero."
fi
## Unset variables
unset local_file
return "${return_is_file_empty}"
}
# }}}
main() { # {{{
if ! [ $(id -u) = 0 ]; then
# To allow creation of temp file (mknod,…)
error_message "Please run this script as root" 1
fi
define_vars
for DISTRO in bullseye buster stretch sid; do # For ALL Debian's version
debug_message "Main FOR loop \
Manage initrd and firmwares for ${RED}${DISTRO}${COLOR_DEBUG} release."
## Temp directory
TEMP_DIR=$(mktemp -d)
pushd "${TEMP_DIR}" > /dev/null \
|| error_message "Can't move to ${TEMP_DIR}/ temp directory." 2
initrd_file="${TEMP_DIR}/initrd.gz"
## Download original initrd {{{
download_file "http://deb.debian.org/debian/dists/${DISTRO}/main/installer-amd64/current/images/netboot/debian-installer/amd64/initrd.gz" "${initrd_file}"
is_file_empty "${initrd_file}" \
&& error_message "${initrd_file} file for ${DISTRO} is empty !" 3
## }}}
## Uncompress initrd {{{
mkdir -- "${TEMP_DIR}"/mkinitrd
pushd "${TEMP_DIR}"/mkinitrd/ > /dev/null \
|| error_message "Can't move to ${TEMP_DIR}/mkinitrd/ directory." 2
zcat "${initrd_file}" | cpio --extract --quiet --preserve-modification-time 1>/dev/null 2>&1
popd > /dev/null \
|| error_message "Can't move back from ${TEMP_DIR}/mkinitrd/ directory." 2
## }}}
## Download bnx2's firmware and uncompress it {{{
firm_bnx2_deb_file="${TEMP_DIR}/firmware-bnx2.deb"
#wget http://deb.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-bnx2_0.43_all.deb
download_file "${firm_bnx2_deb_url}" "${firm_bnx2_deb_file}"
is_file_empty "${firm_bnx2_deb_file}" \
&& error_message "${firm_bnx2_deb_file} file for ${DISTRO} is empty !" 3
dpkg-deb --extract "${firm_bnx2_deb_file}" "${TEMP_DIR}"/mkinitrd \
|| error_message "Can't extract ${firm_bnx2_deb_file} file for ${DISTRO}." 3
## }}}
## Download nonfree firmwares (for Tigon…) and uncompress it {{{
firm_nonfree_deb_file="${TEMP_DIR}/firmware-nonfree.deb"
download_file "${firm_nonfree_deb_url}" "${firm_nonfree_deb_file}"
is_file_empty "${firm_nonfree_deb_file}" \
&& error_message "${firm_nonfree_deb_file} file for ${DISTRO} is empty !" 3
dpkg-deb --extract "${firm_nonfree_deb_file}" "${TEMP_DIR}"/mkinitrd \
|| error_message "Can't extract ${firm_nonfree_deb_file} file for ${DISTRO}." 3
## }}}
## Download myricom's firmware (for IBM) and uncompress it {{{
firm_myricom_deb_file="${TEMP_DIR}/firmware-myricom.deb"
download_file "${firm_myricom_deb_url}" "${firm_myricom_deb_file}"
is_file_empty "${firm_myricom_deb_file}" \
&& error_message "${firm_myricom_deb_file} file for ${DISTRO} is empty !" 3
dpkg-deb --extract "${firm_myricom_deb_file}" "${TEMP_DIR}"/mkinitrd \
|| error_message "Can't extract ${firm_myricom_deb_file} file for ${DISTRO}." 3
## }}}
## Download qlogic's firmware and uncompress it {{{
firm_qlogic_deb_file="${TEMP_DIR}/firmware-qlogic.deb"
download_file "${firm_qlogic_deb_url}" "${firm_qlogic_deb_file}"
is_file_empty "${firm_qlogic_deb_file}" \
&& error_message "${firm_qlogic_deb_file} file for ${DISTRO} is empty !" 3
dpkg-deb --extract "${firm_qlogic_deb_file}" "${TEMP_DIR}"/mkinitrd \
|| error_message "Can't extract ${firm_qlogic_deb_file} file for ${DISTRO}." 3
## }}}
## Download iwlwifi's firmware (for user's laptop) and uncompress it {{{
firm_iwlwifi_deb_file="${TEMP_DIR}/firmware-iwlwifi.deb"
#wget http://deb.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-iwlwifi_0.43_all.deb
download_file "${firm_iwlwifi_deb_url}" "${firm_iwlwifi_deb_file}"
is_file_empty "${firm_iwlwifi_deb_file}" \
&& error_message "${firm_iwlwifi_deb_file} file for ${DISTRO} is empty !" 3
dpkg-deb --extract "${firm_iwlwifi_deb_file}" "${TEMP_DIR}"/mkinitrd \
|| error_message "Can't extract ${firm_iwlwifi_deb_file} file for ${DISTRO}." 3
## }}}
## Make a new initrd {{{
new_initrd_file="${TEMP_DIR}/initrd.xz"
mv "${initrd_file}" initrd_orig.gz
pushd "${TEMP_DIR}"/mkinitrd/ > /dev/null \
|| error_message "Can't move to ${TEMP_DIR}/mkinitrd/ temp directory." 2
### With a very good compression rate
find . | cpio --quiet --create --format=newc | xz --stdout -9 --check=crc32 > "${new_initrd_file}"
is_file_empty "${new_initrd_file}" \
&& error_message "New initrd ${new_initrd_file} file for ${DISTRO} is empty !" 3
popd > /dev/null \
|| error_message "Can't move back from ${TEMP_DIR}/mkinitrd/ directory." 2
## }}}
## Move new initrd to TFTP tree {{{
mkdir --parents -- "${TFTP_DIRECTORY}/installer/debian/${DISTRO}/amd64/"
mv -- "${new_initrd_file}" "${TFTP_DIRECTORY}/installer/debian/${DISTRO}/amd64/initrd_firm.xz"
## }}}
## Leave temp directory and clean it {{{
popd > /dev/null \
|| error_message "Can't move back from ${TEMP_DIR}/ directory." 2
rm --recursive --force -- "${TEMP_DIR}"
## }}}
done
}
# }}}
# Manage arguments # {{{
# This code can't be in a function due to argument management
if [ ! "${NBARGS}" -eq "0" ]; then
manage_arg="0"
## If the first argument is not an option
if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
then
## Print help message and exit
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
printf '%b\n' "---"
usage
exit 1
fi
# Parse all options (start with a "-") one by one
while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
case "${1}" in
-d|--debug ) ## debug
DEBUG=0
;;
-h|--help ) ## help
usage
## Exit after help informations
exit 0
;;
* ) ## unknow option
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
printf '%b\n' "---"
usage
exit 1
;;
esac
debug_message "Arguments management \
${RED}${1}${COLOR_DEBUG} option managed."
## Move to the next argument
shift
manage_arg=$((manage_arg+1))
done
debug_message "Arguments management \
${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
else
debug_message "Arguments management \
No arguments/options to manage."
fi
# }}}
main
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exit 0