minor changed -- tweaking the initramfs
This commit is contained in:
KatolaZ
parent
48c403521b
commit
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#!/bin/bash
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# ----------------------------------------------------------------------
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#
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# This file is part of microdevuan, a set of scripts to create minimal
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# devuan live images
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#
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# ----------------------------------------------------------------------
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# ----------------------------------------------------------------------
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#
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# (c) KatolaZ <katolaz@freaknet.org> (2016)
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#
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# ----------------------------------------------------------------------
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####
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##
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## This will create a minimal initrd without too much garbage
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##
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## KatolaZ -- 2016-05-14
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##
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##
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if [ $# -le 3 ]; then
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echo "Usage: $0 <initrd_orig> <initrd_new> <initrd_compression> <initrd_micro>"
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exit 1
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fi
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####
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##
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## Config options --
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##
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OLDPWD=`pwd`
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INITRD_ORIG=$1
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INITRD_NEW=$2
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INITRD_COMPR=$3
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INITRD_MICRO=$4
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echo "$0: got $1 $2 $3 $4"
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WORK_DIR=/tmp/initrd_new
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MODULE_DIR=lib/modules/`uname -r`/kernel
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####
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##
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## unpack the current initrd image
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##
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if [ ! -d ${WORK_DIR} ]; then
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mkdir ${WORK_DIR}
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else
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rm -rf ${WORKDIR}/*
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fi
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####
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##
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## Determine how the original initrd was compressed...
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##
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INITRD_FILE=`file ${INITRD_ORIG}`
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if [ `echo ${INITRD_FILE} | grep gzip | wc -l` = 1 ]; then
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INITRD_UNCOMPRESS=zcat;
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elif [ `echo ${INITRD_FILE} | grep bzip2 | wc -l` = 1 ]; then
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INITRD_UNCOMPRESS=bzcat;
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elif [ `echo ${INITRD_FILE} | grep " xz " | wc -l` = 1 ]; then
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INITRD_UNCOMPRESS=xzcat;
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else
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echo "Unable to determine the format of ${INITRD_ORIG} -- Aborting!!!"
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exit 1;
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fi
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echo -n "===> Uncompressing the original init using ${INITRD_UNCOMPRESS}..."
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cd ${WORK_DIR}; `${INITRD_UNCOMPRESS} ${INITRD_ORIG} | cpio -id`
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echo "done!"
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####
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##
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## Remove unnecessary ethernet modules -- we already know
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## that the root partition is not over nfs...
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##
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echo -n "===> Removing network drivers..."
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##rm -rf ${MODULE_DIR}/drivers/net/ethernet/*
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rm -rf ${MODULE_DIR}/drivers/net/*
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echo "done!"
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####
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##
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## Remove unnecessary filesystem support
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##
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##
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echo -n "===> Removing unnecessary filesystems drivers..."
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##rm -rf ${MODULE_DIR}/fs/nfs
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rm -rf ${MODULE_DIR}/fs/xfs
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rm -rf ${MODULE_DIR}/fs/btrfs
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##rm -rf ${MODULE_DIR}/fs/ext4
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rm -rf ${MODULE_DIR}/fs/fat
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rm -rf ${MODULE_DIR}/fs/fuse
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rm -rf ${MODULE_DIR}/fs/hfs
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rm -rf ${MODULE_DIR}/fs/hfsplus
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rm -rf ${MODULE_DIR}/fs/reiserfs
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rm -rf ${MODULE_DIR}/fs/ntfs
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rm -rf ${MODULE_DIR}/fs/jfs
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rm -rf ${MODULE_DIR}/fs/jffs2
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rm -rf ${MODULE_DIR}/fs/udf
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rm -rf ${MODULE_DIR}/fs/nls
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rm -rf ${MODULE_DIR}/fs/nfs_common
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echo "done!"
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####
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##
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## Remove the lftp and qla2xxx drivers (FibreChannel)
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##
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echo -n "===> Removing unnecessary SCSI drivers..."
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rm -rf ${MODULE_DIR}/drivers/scsi/lpfc
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rm -rf ${MODULE_DIR}/drivers/scsi/qla2xxx
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echo "done!"
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####
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##
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## Maybe we might remove everything in usr/lib
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##
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echo -n "===> Removing unnecessary libraries in /usr/lib..."
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##rm -rf usr/lib/*
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echo "done!"
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####
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##
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## Remove unnecessary stuff in /bin and /sbin
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##
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echo -n "===> Removing unnecessary stuff in /bin and /sbin..."
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#rm -rf bin/rsync bin/wget
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#rm -rf sbin/acpid
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#rm -rf lib/systemd
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echo "done!"
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####
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##
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## Now we create the new slim initrd
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##
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# echo -n "===> Creating new initrd '${INITRD_NEW}' using ${INITRD_COMPR}..."
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# find . | cpio -H newc -o | `echo ${INITRD_COMPR}` > ${INITRD_NEW}
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# echo "done!"
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####
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##
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## Now we go for the extremely stripped down initrd
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##
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rm -rf ${MODULE_DIR}/drivers/scsi/fnic
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rm -rf ${MODULE_DIR}/drivers/scsi/csiostor
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rm -rf ${MODULE_DIR}/drivers/scsi/isci
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rm -rf ${MODULE_DIR}/drivers/scsi/cxgbi
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rm -rf ${MODULE_DIR}/drivers/scsi/megaraid
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rm -rf ${MODULE_DIR}/drivers/scsi/mpt2sas
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rm -rf ${MODULE_DIR}/drivers/scsi/mpt3sas
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rm -rf ${MODULE_DIR}/drivers/scsi/pm8001
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rm -rf ${MODULE_DIR}/drivers/scsi/qla4xxx
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rm -rf ${MODULE_DIR}/drivers/scsi/aic7xxx
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rm -rf ${MODULE_DIR}/drivers/scsi/bfa
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####
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##
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## Now we create the micro initrd
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##
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cat <<EOF
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*************************************************************************
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** WARNING!!!! DO NOT INTERRUPT THE CREATION OF INITRD OR YOUR IMAGE **
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** WILL COME OUT COMPLETELY BROKEN (AND YOU MIGHT NEED TO START FROM **
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** SCRATCH!!!) **
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*************************************************************************
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EOF
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echo -n "===> Creating new initrd '${INITRD_MICRO}' using ${INITRD_COMPR}..."
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find . | cpio -H newc -o | `echo ${INITRD_COMPR}` > ${INITRD_MICRO}
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echo -n "done!"
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####
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##
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## Remove the directory
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##
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cd ${OLDPWD} && rm -rf ${WORK_DIR}
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exit 0
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@ -23,6 +23,7 @@ BLENDPATH="${BLENDPATH:-$(dirname $0)}"
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source $BLENDPATH/config
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source $BLENDPATH/config
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blend_release_path=$BLENDPATH/$release/
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blend_release_path=$BLENDPATH/$release/
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blend_scripts=${blend_release_path}/scripts
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###source $BLENDPATH/$release/devuan-minimal-live.release
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###source $BLENDPATH/$release/devuan-minimal-live.release
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@ -56,7 +57,7 @@ blend_postinst() {
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#install-custdebs || zerr
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#install-custdebs || zerr
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pushd "$strapdir"
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pushd "$strapdir"
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sudo rsync -avx --no-o --no-g "$blend_release_path"/rootfs_overlay/* . || zerr
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sudo rsync -avx --no-o --no-g "$blend_release_path"/rootfs_overlay/* . || zerr
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chmod 755 etc/init.d/boot_beep
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sudo chmod 755 etc/init.d/boot_beep
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## TODO:
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## TODO:
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## insserv boot_beep
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## insserv boot_beep
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popd
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popd
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@ -182,6 +183,7 @@ EOF
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}
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}
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## UNUSED
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iso_write_grub_cfg() {
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iso_write_grub_cfg() {
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fn iso_write_grub_cfg "(override)"
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fn iso_write_grub_cfg "(override)"
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req=(workdir arch username)
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req=(workdir arch username)
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@ -239,10 +241,21 @@ menuentry "Memory test" {
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EOF
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EOF
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}
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}
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blend_finalize() {
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## put the "create_initrd.sh" script
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fn blend_finalize
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req=(strapdir username default_shell)
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##func
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ckreq || return 1
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put_create_initrd(){
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sudo cp ${blend_scripts}/create_initrd.sh ${strapdir}/ >/dev/null
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## Now we make it executable
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sudo chmod 755 ${strapdir}/create_initrd.sh
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}
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## put the "finalize" script, that does the final work
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## func
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put_finalize(){
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cat <<EOF | sudo tee ${strapdir}/finalize >/dev/null
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cat <<EOF | sudo tee ${strapdir}/finalize >/dev/null
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#!/bin/sh
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#!/bin/sh
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@ -254,13 +267,6 @@ done
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chsh -s "${default_shell}" ${username}
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chsh -s "${default_shell}" ${username}
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chown -R 1000:1000 /home/${username}
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chown -R 1000:1000 /home/${username}
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cp /home/${username}/Desktop/refractainstaller.desktop /usr/share/applications/
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chmod +x /home/${username}/Desktop/refractainstaller.desktop
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# This can go away when desktop-base is fixed to do the grub theme.
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grep -q GRUB_THEME /etc/default/grub || {
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printf "\nGRUB_THEME=/usr/share/desktop-base/grub-themes/desktop-grub-theme/theme.txt\n" >> /etc/default/grub
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}
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# Not sure if this has been fixed (in devuan-baseconf?)
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# Not sure if this has been fixed (in devuan-baseconf?)
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mv /data/etc/apt/apt.conf.d/05disable-suggests /etc/apt/apt.conf.d/
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mv /data/etc/apt/apt.conf.d/05disable-suggests /etc/apt/apt.conf.d/
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@ -284,6 +290,21 @@ insserv boot_beep
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setcap 'cap_sys_tty_config+ep' /usr/bin/fbterm
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setcap 'cap_sys_tty_config+ep' /usr/bin/fbterm
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chmod u+s /usr/bin/fbterm
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chmod u+s /usr/bin/fbterm
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## Make initramfs
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SLIM_INITRD=initrd_devuan.img
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MICRO_INITRD=initramfs-\$(uname -r).img
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INITRD_COMPR="xz --check=crc32 --x86 -6 -"
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/create_initrd.sh /boot/initrd.img-`uname -r` /boot/\${SLIM_INITRD} \
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"\${INITRD_COMPR}" /boot/\${MICRO_INITRD}
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unlink /initrd.img
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ln -s /boot/\${MICRO_INITRD} /initrd.img
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## rm create_initrd.sh
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##sudo rm /create_initrd.sh
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## package list
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## package list
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dpkg -l | awk '/^ii/ { print $2 " " $3 }' > /home/${username}/package_list
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dpkg -l | awk '/^ii/ { print $2 " " $3 }' > /home/${username}/package_list
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@ -292,7 +313,18 @@ apt-get update
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apt-get clean
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apt-get clean
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updatedb
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updatedb
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EOF
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EOF
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}
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blend_finalize() {
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fn blend_finalize
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req=(strapdir username default_shell)
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ckreq || return 1
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put_create_initrd
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put_finalize
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chroot-script -d finalize || zerr
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chroot-script -d finalize || zerr
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}
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}
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