sonic-buildimage/files/Aboot/boot0.j2
Ying Xie 34487eef5d [aboot] use ram partition for /var/log for devices with 3.7G disks (#8400)
Master/202012 image size grew quite a bit. 3.7G harddrive can no longer hold one image and safely upgrade to another image. Every bit of harddrive space is precious to save now.

Also sh syntax seemingly changed, [ condition ] && action was a legit syntax in 201911 branch but it is an error when condition not met with 202012 or later images. Change the syntax to if statement to avoid the issue.

Signed-off-by: Ying Xie ying.xie@microsoft.com
2021-08-25 12:18:19 -07:00

892 lines
26 KiB
Django/Jinja

#!/bin/sh
# Copyright (C) 2016 Arista Networks, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Aboot stage 0 boot script
#
# This boot0 script can be used in different scenario
# - Installation and boot from Aboot (manual or reboot on a new image)
# - EOS to SONiC fast-reboot (installation and kexec in EOS)
# - SONiC to SONiC fast-reboot (installation and kexec in SONiC)
#
# Use it this way:
# - swipath=path/to/swi install=true boot0
# - swipath=path/to/swi install=true force=true boot0
# - swipath=path/to/swi kexec=true boot0
#
# The logic defaults to the first scenario but providing extra environment variable
# will affect the behavior of the script.
# The list of variables is maintained here
# - KERNEL : relative path to the kernel to execute
# - INITRD : relative path to the initrd to load
# - CMDLINE : place to find the default kernel cmdline to use for the platform
# - VERBOSE : setting it to 1 will enable debug traces
#
# By default the boot0 script will behave for an Aboot based behavior.
# Options can be provided to only run some features of this script.
#
# Extra kernel parameters can be provided at runtime by the user by adding them
# into the kernel-params file.
#
# Secureboot of SONiC SWI images is also supported.
# In such cases, there will only be a partial install on the flash.
# SONiC will be mostly booting in RAM as a live operating system.
# All templated variables should be declared here
image_name="image-%%IMAGE_VERSION%%"
dockerfs="{{ FILESYSTEM_DOCKERFS }}"
boot_image="{{ ABOOT_BOOT_IMAGE }}"
installer_image="sonic.swi"
docker_dir="{{ DOCKERFS_DIR }}"
do_not_clean="do-not-clean"
kernel_params="kernel-params"
aboot_machine="arista_unknown"
info() { printf "%04.2f: $@\n" "$(cut -f1 -d' ' /proc/uptime)"; }
err() { info "Error: $@"; }
warn() { info "Warning: $@"; }
if [ $# -ne 0 ]; then
echo "usage: $0 (see code)"
exit 1
fi
mountpoint_for_file() {
local file="$1"
df "$file" | tail -1 | tr -s " " | cut -d ' ' -f6
}
# extract mount point from the swi path, e.g., /mnt/flash/sonic.swi --> /mnt/flash
if [ -z "$target_path" ]; then
if [ -z "$swipath" ]; then
err "target_path= is required when swipath= is not provided"
exit 1
fi
target_path=$(mountpoint_for_file "$swipath")
fi
image_path="$target_path/$image_name"
hook_path="$image_path/platform/hooks"
data_path="$image_path/platform/data"
boot_image_path="$image_path/$boot_image"
installer_image_path="$image_path/$installer_image"
boot_config="$target_path/boot-config"
cmdline_allowlist="crashkernel hwaddr_ma1"
# for backward compatibility with the sonic_upgrade= behavior
install="${install:-${sonic_upgrade:-}}"
is_secureboot_enabled() {
if $in_aboot; then
if [ -x /bin/securebootctl ] && securebootctl sb -display | grep -q "Secure Boot enabled"; then
return 0
fi
return 1
else
if grep -q aboot.secureboot /proc/cmdline; then
return 0
fi
# FIXME: EOS is not handled here
return 1
fi
}
clean_flash() {
## Remove all the other unnecssary files except swi file, boot-config
for f in $(ls -A $target_path); do
if [ $f != "${swipath##*/}" ] &&
[ $f != "boot-config" ] &&
[ $f != "preserve-installer" ] &&
[ $f != "$kernel_params" ] &&
[ $f != "aquota.user" ] &&
[ $f != "old_config" ] &&
[ $f != "minigraph.xml" ] &&
[ $f != "snmp.yml" ] &&
[ $f != "acl.json" ]
then
rm -rf "$target_path/$f"
fi
done
}
in_array() {
local value="$1"
shift
for other in $@; do
if [ "$value" = "$other" ]; then
return 0
fi
done
return 1
}
update_boot_config() {
local key="$1"
local value="$2"
if grep "$key" "$boot_config" 2>&1 > /dev/null; then
sed -i "s#^$key=.*\$#$key=$value#" "$boot_config"
else
echo "$key=$value" >> "$boot_config"
fi
}
get_boot_config() {
local key="$1"
sed -n "s#^$key=##p" "$boot_config" || :
}
update_next_boot() {
local default="$(get_boot_config SWI_DEFAULT)"
if [ -z "$default" ]; then
warn "boot-config has no variable SWI_DEFAULT"
else
info "Next reboot will use $default"
update_boot_config SWI "$default"
fi
}
get_sorted_hooks() {
echo $(find "$1" -name '[0-9][0-9]-*' -type f)
}
run_hooks() {
if [ -d "$hook_path/$1" ]; then
for hook in $(get_sorted_hooks "$hook_path/$1"); do
if [ ! -z "$hook" ]; then
info "Running hook $(basename $hook)"
. "$hook"
fi
done
fi
}
get_uuid_for() {
local dev="$1"
if type lsblk 2>&1 > /dev/null; then
lsblk "$dev" -n --output UUID
elif type blkid 2>&1 > /dev/null; then
blkid | grep "^$dev" | sed -n 's/^.* UUID="//p' | sed 's/".*$//'
fi
}
cmdline_append() {
cat >> /tmp/append
}
cmdline_clear() {
echo -n > /tmp/append
}
cmdline_add() {
echo "$@" >> /tmp/append
}
cmdline_has() {
grep -q "$1" /tmp/append
}
cmdline_echo() {
# echo trims and remove whitespace duplicates
echo $(cat /tmp/append | tr '\n' ' ')
}
cmdline_get() {
# extract last matching value for key
sed -nr "s/.*$1=([^ ]+).*/\1/p" /tmp/append | tail -n 1
}
find_first_kernel_under() {
local path="$1"
find "$path" -name 'vmlinuz-*' -type f | head -n 1
}
find_first_initrd_under() {
local path="$1"
find "$path" -name 'initrd.img-*' -type f | head -n 1
}
is_file_in_memory() {
local file="$1"
local filemnt=$(mountpoint_for_file "$file")
local filemntfs=$(mount | grep " $filemnt " | cut -f5 -d' ')
case "$filemntfs" in
tmpfs|ramfs) return 0;;
*) return 1;;
esac
}
get_tmpfs() {
local tmpfs="$(mktemp -d)"
mkdir -p "$tmpfs"
if ! $in_aboot && ! mount | grep -q ' /tmp type tmpfs'; then
# mount a real tmpfs on /tmp/xxx if /tmp is not one already.
mount -t tmpfs "$(dirname $tmpfs)" "$tmpfs"
fi
echo "$tmpfs"
}
clean_tmpfs() {
local tmpfs="$1"
case "$tmpfs" in
/tmp) return 0;;
/tmp/*);; # only cleanup tmpfs created by this script
*) return 0;;
esac
if mount | grep -q "$tmpfs"; then
umount "$tmpfs" || :
fi
}
move_swi_to_tmpfs() {
local oldswi="$1"
if is_file_in_memory "$oldswi"; then
echo "$oldswi"
return 0
fi
local tmpfs="$(get_tmpfs)"
local newswi="$tmpfs/$(basename "$oldswi")"
mv "$oldswi" "$newswi"
echo "$newswi"
}
cleanup_swi_tmpfs() {
rm -f "$swipath"
clean_tmpfs "$(mountpoint_for_file "$swipath")"
}
mount_relpath() {
local abspath="$1"
local mountpath="$(df "$abspath" | sed -nr '/\//s/^.* ([^ ]+)$/\1/p')"
echo "$abspath" | sed "s#^$mountpath/##"
}
zip_file_offset() {
local zipfile="$1"
local filename="$2"
if $in_aboot; then
unzip -qqf "$zipfile" "$filename"
else
local hexoffset="$(zipdetails "$zipfile" | sed -En "/Filename +'$filename'/,/^$/p" | sed -En 's/^([^ ]+) PAYLOAD$/\1/p')"
echo "$((0x$hexoffset))"
fi
}
SWI_ALREADY_INSTALLED=0
SWI_NOT_INSTALLED=1
SWI_VERSION_MISMATCH=2
SWI_OTHER_VARIANT_INSTALLED=3
is_swi_installed() {
local swi_path="$1"
local swi_version="$(unzip -qp "$swi_path" .imagehash)"
local local_version="$(cat $image_path/.imagehash 2>/dev/null || :)"
if [ -z "$local_version" ]; then
# no image installed for this version
return $SWI_NOT_INSTALLED
fi
if [ "$swi_version" != "$local_version" ]; then
warn "Installed image has a different version than $swipath"
return $SWI_VERSION_MISMATCH
fi
if $secureboot; then
if [ -s "$installer_image_path" ]; then
# secureboot image already installed
return $SWI_ALREADY_INSTALLED
else
# regular image of the same version already installed
return $SWI_OTHER_VARIANT_INSTALLED
fi
else
if [ -s "$boot_image_path" ]; then
# regular image already installed
return $SWI_ALREADY_INSTALLED
else
# secureboot image of the same version already installed
return $SWI_OTHER_VARIANT_INSTALLED
fi
fi
}
extract_image() {
info "Moving swi to a tmpfs"
## Avoid problematic flash usage spike on older systems, also improves I/O
swipath="$(move_swi_to_tmpfs "$swipath")"
info "Extracting swi content"
## Unzip the image except boot0 and dockerfs archive
unzip -oq "$swipath" -x boot0 "$dockerfs" -d "$image_path"
## detect rootfs type
rootfs_type=`grep " $target_path " /proc/mounts | cut -d' ' -f3`
info "Extracting $dockerfs from swi"
## Unpacking dockerfs delayed
## 1. when disk is vfat as it does not support symbolic link
## 2. when disk is small, expand it into ramfs during initrd
if [ "$rootfs_type" != "vfat" ] && ! cmdline_has docker_inram=on; then
mkdir -p "$image_path/$docker_dir"
if [ -n "$install" ]; then
TAR_EXTRA_OPTION="--numeric-owner --warning=no-timestamp"
fi
## extract docker archive
unzip -oqp "$swipath" "$dockerfs" | tar xzf - -C "$image_path/$docker_dir" $TAR_EXTRA_OPTION
else
## save dockerfs archive in the image directory
unzip -oq "$swipath" "$dockerfs" -d "$image_path"
info "Unpacking $dockerfs delayed to initrd because $target_path is $rootfs_type or docker_inram is on"
fi
## remove installer since it's not needed anymore
if $preserve_installer; then
info "Preserving installer under $installer_image_path"
mv "$swipath" "$installer_image_path"
chmod a+r "$installer_image_path"
else
info "Remove installer"
cleanup_swi_tmpfs "$swipath"
fi
## use new reduced-size boot swi
local swi_boot_path="flash:$image_name/$boot_image"
update_boot_config SWI "$swi_boot_path"
update_boot_config SWI_DEFAULT "$swi_boot_path"
## sync disk operations
sync
}
extract_image_secureboot() {
info "Extracting necessary swi content"
# NOTE: boot/ is not used by the boot process but only extracted for kdump
unzip -oq "$swipath" 'boot/*' platform/firsttime .imagehash -d "$image_path"
info "Installing image as $installer_image_path"
mv "$swipath" "$installer_image_path"
chmod a+r "$installer_image_path"
swipath="$installer_image_path"
local swi_boot_path="flash:$image_name/$installer_image"
update_boot_config SWI "$swi_boot_path"
update_boot_config SWI_DEFAULT "$swi_boot_path"
sync
}
prepare_image_secureboot() {
local boot_tmpfs="$(get_tmpfs)"
info "Extracting boot content in tmpfs"
unzip -oq "$swipath" 'boot/*' -d "$boot_tmpfs"
info "Generating machine.conf and cmdline"
write_secureboot_configs
sync
# override environment variables preventing external tamper on kernel execution
CMDLINE="$(cmdline_echo) $ENV_EXTRA_CMDLINE"
KERNEL="$(find_first_kernel_under "$boot_tmpfs")"
INITRD="$(find_first_initrd_under "$boot_tmpfs")"
}
write_machine_config() {
## Detect SKU and create a hardware description file
aboot_version=$(cmdline_get Aboot | sed 's/^.*norcal.-//')
if [ -x /bin/sysinit ]; then
aboot_build_date=$(stat -c %y /bin/sysinit | sed 's/ /T/')
else
aboot_build_date="unknown"
fi
cat <<EOF > ${target_path}/machine.conf
aboot_version=$aboot_version
aboot_vendor=arista
aboot_platform=x86_64-$aboot_machine
aboot_machine=$aboot_machine
aboot_arch=x86_64
aboot_build_date=$aboot_build_date
EOF
chmod a+r "${target_path}/machine.conf"
}
read_system_eeprom() {
if [ -x /bin/readprefdl ] && [ -f /tmp/.system-prefdl ]; then
readprefdl -f /tmp/.system-prefdl -d > $target_path/.system-prefdl
elif [ -f /etc/prefdl ]; then
cp /etc/prefdl $target_path/.system-prefdl
chmod a+r $target_path/.system-prefdl
fi
}
write_platform_specific_cmdline() {
local platform="$(cmdline_get platform)"
local sid="$(cmdline_get sid | sed 's/Ssd$//')"
# set varlog size to 100MB
local varlog_size=100
# sonic_mode is set to fixed by default.
sonic_mode="fixed"
supervisor_mode="supervisor"
linecard_mode="linecard"
# detect the size of the flash partition from name in Aboot/EOS/SONiC
local flash_size=$(($(df "$target_path" | tail -1 | tr -s ' ' | cut -f2 -d' ') / 1000))
if [ "$platform" = "raven" ]; then
# Assuming sid=Cloverdale
aboot_machine=arista_7050_qx32
flash_size=2000
cmdline_add modprobe.blacklist=radeon,sp5100_tco
cmdline_add acpi=off
fi
if [ "$platform" = "crow" ]; then
# Assuming sid=Clearlake
aboot_machine=arista_7050_qx32s
flash_size=3700
cmdline_add modprobe.blacklist=radeon,sp5100_tco
fi
if [ "$sid" = "Upperlake" ] || [ "$sid" = "UpperlakeES" ]; then
aboot_machine=arista_7060_cx32s
flash_size=3700
fi
if [ "$sid" = "UpperlakePlus" ]; then
aboot_machine=arista_7060cx2_32s
flash_size=3700
fi
if [ "$sid" = "Gardena" ] || [ "$sid" = "GardenaE" ]; then
aboot_machine=arista_7260cx3_64
flash_size=28000
fi
if [ "$sid" = "Alhambra" ]; then
aboot_machine=arista_7170_64c
flash_size=28000
cmdline_add hugepages=128
fi
if [ "$sid" = "Mineral" ]; then
aboot_machine=arista_7170_32c
flash_size=28000
cmdline_add hugepages=128
fi
if [ "$sid" = "MineralD" ]; then
aboot_machine=arista_7170_32cd
flash_size=28000
cmdline_add hugepages=128
fi
if [ "$sid" = "Lodoga" ]; then
aboot_machine=arista_7050cx3_32s
flash_size=3700
fi
if [ "$sid" = "Marysville" ]; then
aboot_machine=arista_7050sx3_48yc8
flash_size=7382
fi
if [ "$sid" = "Marysville10" ]; then
aboot_machine=arista_7050sx3_48c8
flash_size=7382
fi
if [ "$sid" = "BlackhawkO" ]; then
aboot_machine=arista_7060px4_32
flash_size=28000
fi
if [ "$sid" = "BlackhawkDD" ] || [ "$sid" = "BlackhawkDDM" ]; then
aboot_machine=arista_7060dx4_32
flash_size=28000
fi
if [ "$sid" = "Smartsville" ]; then
aboot_machine=arista_7280cr3_32p4
fi
if [ "$sid" = "SmartsvilleBK" ]; then
aboot_machine=arista_7280cr3k_32p4
fi
if [ "$sid" = "SmartsvilleBkMs" ] || [ "$sid" = "SmartsvilleBkMsTpm" ]; then
aboot_machine=arista_7280cr3mk_32p4
fi
if [ "$sid" = "SmartsvilleDD" ]; then
aboot_machine=arista_7280cr3_32d4
fi
if [ "$sid" = "SmartsvilleDDBK" ]; then
aboot_machine=arista_7280cr3k_32d4
fi
if [ "$sid" = "SmartsvilleDDBkMs" ] || [ "$sid" = "SmartsvilleDDBkMsTpm" ]; then
aboot_machine=arista_7280cr3mk_32d4
fi
if [ "$sid" = "Clearwater2" ]; then
aboot_machine=arista_7800r3_48cq2_lc
sonic_mode="$linecard_mode"
fi
if [ "$sid" = "Clearwater2Ms" ]; then
aboot_machine=arista_7800r3_48cqm2_lc
sonic_mode="$linecard_mode"
fi
if [ "$sid" = "OtterLake" ]; then
aboot_machine=arista_7800_sup
flash_size=30000
sonic_mode=$supervisor_mode
fi
if [ "$sid" = "SmartsvilleBkMs" ]; then
aboot_machine=arista_7280cr3mk_32p4
flash_size=7382
fi
if in_array "$platform" "rook" "magpie" "woodpecker" "sprucefish"; then
cmdline_add tsc=reliable
cmdline_add pcie_ports=native
cmdline_add rhash_entries=1
cmdline_add usb-storage.delay_use=0
cmdline_add reassign_prefmem
fi
if in_array "$platform" "rook" "sprucefish"; then
cmdline_add iommu=on
cmdline_add intel_iommu=on
cmdline_add intel_idle.max_cstate=0
read_system_eeprom
fi
if in_array "$platform" "crow" "magpie"; then
cmdline_add amd_iommu=off
cmdline_add modprobe.blacklist=snd_hda_intel,hdaudio
read_system_eeprom
fi
if in_array "$platform" "woodpecker"; then
cmdline_add modprobe.blacklist=snd_hda_intel,hdaudio
read_system_eeprom
fi
if in_array "$platform" "lorikeet" "hedgehog"; then
cmdline_add processor.max_cstate=1
cmdline_add reassign_prefmem
read_system_eeprom
fi
if [ $flash_size -ge 28000 ]; then
varlog_size=4096
elif [ $flash_size -gt 3700 ]; then
varlog_size=400
else
varlog_size=256
cmdline_add logs_inram=on
if [ $flash_size -le 2000 ]; then
# enable docker_inram for switches with less than 2G of flash
varlog_size=128
cmdline_add docker_inram=on
fi
fi
cmdline_add "varlog_size=$varlog_size"
cmdline_add "sonic.mode=$sonic_mode"
}
write_image_specific_cmdline() {
# security
cmdline_add security=apparmor
cmdline_add apparmor=1
# fs configuration
cmdline_add rw
# disable deterministic interface naming
cmdline_add net.ifnames=0
# disable unified cgroup hierarchy to workaround dockerd limitation
cmdline_add systemd.unified_cgroup_hierarchy=0
# verbosity
cmdline_add quiet
# Start showing systemd information from the first failing unit if any.
# systemd.show_status=false or quiet can be used to silence systemd entierly
cmdline_add systemd.show_status=auto
# Pass the MAC address to the new kernel as a command line parameter. This makes it
# possible to restore the MAC address in the new kernel without requiring driver modifications.
if [ -f /sys/class/net/ma1/address ]; then
cmdline_add "hwaddr_ma1=$(cat /sys/class/net/ma1/address)"
elif [ -f /sys/class/net/eth0/address ]; then
cmdline_add "hwaddr_ma1=$(cat /sys/class/net/eth0/address)"
else
err "Management port not found."
fi
# Obtain root partition uuid
local mountstr="$(mount | grep " $target_path ")"
local rootdev="$(echo $mountstr | cut -f1 -d' ')"
local rootfstype="$(echo $mountstr | cut -f5 -d' ')"
local rootuuid="$(get_uuid_for $rootdev)"
if [ -z "$rootuuid" ] || [ "$rootfstype" = "vfat" ] ; then
cmdline_add "root=$rootdev"
else
cmdline_add "root=UUID=$rootuuid"
fi
}
write_default_cmdline() {
local delimiter="cmdline-aboot-end"
cmdline_clear
if $in_aboot; then
# generate the default kernel parameters for the platform
cat /etc/cmdline | sed "/^\(${bootconfigvars// /\|}\|crashkernel\|loglevel\|ignore_loglevel\)\(\$\|=\)/d;/^\$/d" | cmdline_append
elif grep -q "$delimiter" /proc/cmdline; then
# we are on a recent sonic image using delimiter. extracting the part of the
# cmdline coming from aboot is trivial.
cat /proc/cmdline | sed -E "s/^(.*) $delimiter .*$/\1/" | tr ' ' '\n' | cmdline_append
else
# we are either on SONiC or EOS and the commandline doesn't have a delimiter
# for the Aboot part. Take an educated guess at a right delimiter.
# Subject to breakage if EOS or SONiC cmdline change.
cat /proc/cmdline | sed -E 's/^(.*) rw .*$/\1/' | tr ' ' '\n' | cmdline_append
fi
cmdline_add "$delimiter"
}
write_cmdline() {
# use extra parameters from kernel-params hook if the file exists
if [ -f "$target_path/$kernel_params" ] && ! $secureboot; then
info "Loading extra kernel parameters from $kernel_params"
cat "$target_path/$kernel_params" | cmdline_append
fi
# FIXME: sonic sometimes adds extra kernel parameters from user space
# this is unsafe but some will be kept as part of the regular boot
if [ -f "$image_path/kernel-cmdline" ]; then
for field in $cmdline_allowlist; do
cat "$image_path/kernel-cmdline" | tr ' ' '\n' | grep -E "$field" | tail -n 1 | cmdline_append
done
fi
# FIXME: legacy configuration files used by fast-reboot and eos2sonic
# these should be deprecated over time.
cmdline_echo > "$image_path/kernel-cmdline"
cmdline_echo | sed 's/ cmdline-aboot-end.*$//' > "$target_path/kernel-params-base"
}
write_common_configs() {
write_default_cmdline
write_platform_specific_cmdline
write_image_specific_cmdline
write_machine_config
}
write_secureboot_configs() {
write_common_configs
cmdline_add "loop=$(mount_relpath "$installer_image_path")"
cmdline_add loopfstype=squashfs
cmdline_add "loopoffset=$(zip_file_offset "$installer_image_path" fs.squashfs)"
cmdline_add docker_inram=on
cmdline_add secure_boot_enable=y
cmdline_add aboot.secureboot=enabled
# setting panic= has the side effect of disabling the initrd shell on error
cmdline_add panic=0
write_cmdline
}
write_regular_configs() {
write_common_configs
cmdline_add "loop=$image_name/fs.squashfs"
cmdline_add loopfstype=squashfs
write_cmdline
}
run_kexec() {
local cmdline="${CMDLINE:-$(cmdline_echo) $ENV_EXTRA_CMDLINE}"
local kernel="${KERNEL:-$(find_first_kernel_under "$image_path/boot")}"
local initrd="${INITRD:-$(find_first_initrd_under "$image_path/boot")}"
if $verbose; then
# show systemd showdown sequence when verbose is set
cmdline="$(echo "$cmdline" | sed 's/systemd.show_status=auto/systemd.show_status=true/')"
fi
if $debug; then
# enable initrd debug as well as kernel verbose output
cmdline="$(echo "$cmdline" | sed 's/ quiet//')"
cmdline="$cmdline debug loglevel=7 log_buf_len=8M printk.devmsg=on"
fi
sync
kexec --load --initrd="$initrd" --append="$cmdline" "$kernel"
( [ -z "$testonly" ] && [ -z "$loadonly" ] ) || exit 0
info "Kexecing..."
kexec --exec
}
secureboot_install() {
if [ -e "$image_path" ]; then
warn "Image folder $image_path already exist (likely regular install)"
fi
mkdir -p "$image_path"
info "Installing image as $installer_image_path"
extract_image_secureboot
}
regular_install() {
if [ -e "$image_path" ]; then
warn "Image folder $image_path already exist (likely secureboot install)"
fi
mkdir -p $image_path
info "Generating boot-config, machine.conf and cmdline"
write_regular_configs "$image_path"
info "Installing image under $image_path"
extract_image
run_hooks post-install
}
secureboot_boot() {
# boot material is extracted and generated in RAM.
# SONiC starts as a live OS.
info "Preparing image for secureboot"
prepare_image_secureboot
update_next_boot
run_kexec
}
regular_boot() {
# boot uses the image installed on the flash
write_regular_configs "$image_path"
run_hooks pre-kexec
update_next_boot
run_kexec
}
# In Aboot no option will be provided therefore these are the default values to use
in_aboot=true
do_clean=true
do_install=true
do_kexec=true
# prevent the flash from being cleaned if the do-not-clean file exists
if [ -f "$target_path/$do_not_clean" ]; then
do_clean=false
fi
# Parse the cmdline options (used from EOS or from SONiC)
if [ ! -z "$install" ]; then
# install from SONiC or EOS
in_aboot=false
do_clean=false
do_kexec=false
elif [ ! -z "$kexec" ]; then
# kexec from SONiC or EOS
in_aboot=false
do_install=false
do_clean=false
fi
# Make sure boot-config exists to avoid noise
touch "$boot_config"
# Verbosity can be defined by the caller, default to false otherwise
verbose=${verbose:-false}
debug=${debug:-false}
if [ -f "$target_path/verbose-boot" ] ||
[ "$(get_boot_config VERBOSE)" = "1" ] ||
! $in_aboot; then
verbose=true
fi
if [ -f "$target_path/debug-boot" ] || [ "$(get_boot_config DEBUG)" = "1" ]; then
verbose=true
debug=true
fi
# behavioral configuration for secureboot
# can be overidden by passing secureboot=true via env
if [ -z "$secureboot" ]; then
if is_secureboot_enabled; then
secureboot=true
else
secureboot=false
fi
fi
# preserve original installer during regular install when set
preserve_installer=false
if [ -f "$target_path/preserve-installer" ] ||
[ "$(get_boot_config PRESERVE_INSTALLER)" = "1" ]; then
preserve_installer=true
fi
# enable shell debug mode to get the most verbosity
if $verbose; then
set -x
fi
# install the image if newer
if $do_install; then
if ! unzip -ql "$swipath" 2>&1 > /dev/null; then
err "The swipath= environment variable does not point to a valid SWI"
exit 1
fi
swi_installed=0
is_swi_installed "$swipath" || swi_installed=$?
if [ "$swi_installed" -ne $SWI_ALREADY_INSTALLED ] || [ -n "$force" ]; then
if [ "$swi_installed" -eq $SWI_VERSION_MISMATCH ] || [ -n "$force" ]; then
warn "Removing existing installation folder $image_path"
rm -rf $image_path
fi
if [ "$swi_installed" -ne $SWI_OTHER_VARIANT_INSTALLED ] && $do_clean; then
info "Cleaning flash content $target_path"
clean_flash
fi
if $secureboot; then
secureboot_install
else
regular_install
fi
else
info "Using previously installed image"
fi
fi
# chainloading using kexec
if $do_kexec; then
if $secureboot; then
secureboot_boot
else
regular_boot
fi
fi