77cde50541
* Fix showing systemd shutdown sequence when verbose is set * Fix creation of kernel-cmdline file Sometimes boot0 prints error "mv: can't preserve ownership of '/mnt/flash/image-arsonic.xxxx/kernel-cmdline': Operation not permitted" * Improve flash space usage during installation Some older systems only have 2GB of flash available. Installing a second image on these can prove to be challenging. The new installation process moves the installer swi to memory in order to avoid free up space from the flash before uncompressing it there. It removes all the flash space usage spike and also improves the IO since the installation is no more reading and writting to the flash at the same time. * Add support of 7060CX-32S-SSD * 7260CX3: use inventory powerCycle procedures * 7050QX-32S: use inventory powerCycle procedures * 7050QX-32: use inventory powerCycle procedures * platform: arista: add common platform_reboot Replace platform_reboot by a link to new common for devices already using a similar script. * 7060CX-32S: use inventory powerCycle procedures * Install python smbus in pmon Some platform plugin need the python smbus library to perform some actions. This installs the dependency.
451 lines
14 KiB
Django/Jinja
451 lines
14 KiB
Django/Jinja
#!/bin/sh
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# Copyright (C) 2016 Arista Networks, Inc.
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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
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# (at 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,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU 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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# Aboot stage 0 boot script
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#
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# This boot0 script can be used in different scenario
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# - Installation and boot from Aboot (manual or reboot on a new image)
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# - EOS to SONiC fast-reboot (installation and kexec in EOS)
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# - SONiC to SONiC fast-reboot (installation and kexec in SONiC)
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#
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# Use it this way:
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# - swipath=path/to/swi install=true boot0
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# - swipath=path/to/swi install=true force=true boot0
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# - swipath=path/to/swi kexec=true boot0
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#
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# The logic defaults to the first scenario but providing extra environment variable
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# will affect the behavior of the script.
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# The list of variables is maintained here
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# - KERNEL : relative path to the kernel to execute
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# - INITRD : relative path to the initrd to load
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# - CMDLINE : place to find the default kernel cmdline to use for the platform
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# - VERBOSE : setting it to 1 will enable debug traces
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#
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# By default the boot0 script will behave for an Aboot based behavior.
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# Options can be provided to only run some features of this script.
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#
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# Extra kernel parameters can be provided at runtime by the user by adding them
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# into a kernel-params file.
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image_name="image-%%IMAGE_VERSION%%"
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dockerfs="{{ FILESYSTEM_DOCKERFS }}"
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do_not_clean="do-not-clean"
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kernel_params="kernel-params"
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aboot_machine="arista_unknown"
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info() { printf "%04.2f: $@\n" "$(cut -f1 -d' ' /proc/uptime)"; }
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err() { info "Error: $@"; }
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warn() { info "Warning: $@"; }
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# extract mount point from the swi path, e.g., /mnt/flash/sonic.swi --> /mnt/flash
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if [ -z "$target_path" ]; then
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if [ -z "$swipath" ]; then
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err "target_path= is required when swipath= is not provided"
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exit 1
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fi
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target_path=$(df "$swipath" | tail -1 | tr -s " " | cut -d ' ' -f6)
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fi
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image_path="$target_path/$image_name"
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hook_path="$image_path/platform/hooks"
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data_path="$image_path/platform/data"
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cmdline_base="$target_path/kernel-params-base"
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cmdline_image="$image_path/kernel-cmdline"
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boot_config="$target_path/boot-config"
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swi_tmpfs="/tmp/tmp-swi"
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bootconfigvars="KERNEL INITRD CONSOLESPEED PASSWORD NETDEV NETAUTO NETIP NETMASK NETGW NETDOMAIN NETDNS NETHW memtest"
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flash_re=" /mnt/flash| /host"
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# for backward compatibility with the sonic_upgrade= behavior
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install="${install:-${sonic_upgrade:-}}"
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parse_environment_config() {
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for n in ${bootconfigvars}; do
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eval v="\$$n"
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if [ "$v" ]; then
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echo "$n=$v"
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fi
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done
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}
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clean_flash() {
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## Remove all the other unnecssary files except swi file, boot-config
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for f in $(ls -A $target_path); do
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if [ $f != "${swipath##*/}" ] &&
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[ $f != "boot-config" ] &&
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[ $f != "$kernel_params" ] &&
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[ $f != "$cmdline_base" ] &&
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[ $f != "aquota.user" ] &&
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[ $f != "old_config" ] &&
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[ $f != "minigraph.xml" ]
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then
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rm -rf "$target_path/$f"
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fi
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done
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}
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update_boot_config() {
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local key="$1"
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local value="$2"
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if grep "$key" "$boot_config" 2>&1 > /dev/null; then
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sed -i "s#^$key=.*\$#$key=$value#" "$boot_config"
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else
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echo "$key=$value" >> "$boot_config"
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fi
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}
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get_boot_config() {
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local key="$1"
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sed -n "s#^$key=##p" "$boot_config" || :
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}
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update_next_boot() {
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local default="$(get_boot_config SWI_DEFAULT)"
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if [ -z "$default" ]; then
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warn "boot-config has no variable SWI_DEFAULT"
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else
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update_boot_config SWI "$default"
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fi
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}
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move_swi_to_tmpfs() {
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local oldswi="$1"
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local newswi="$swi_tmpfs/$(basename $oldswi)"
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mkdir -p "$swi_tmpfs"
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if ! $in_aboot && ! mount | grep -q ' /tmp type tmpfs'; then
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# mount a real tmpfs on /tmp/tmp-swi if /tmp is not one already.
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mount -t tmpfs tmp-swi "$swi_tmpfs"
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fi
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mv "$oldswi" "$newswi"
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echo "$newswi"
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}
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cleanup_swi_tmpfs() {
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rm -f "$swipath"
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if mount | grep -q "$swi_tmpfs"; then
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umount "$swi_tmpfs" || :
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fi
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}
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extract_image() {
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mkdir -p "$image_path"
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info "Moving swi to a tmpfs"
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## Avoid problematic flash usage spike on older systems, also improves I/O
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swipath="$(move_swi_to_tmpfs $swipath)"
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info "Extracting swi content"
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## Unzip the image except boot0 and dockerfs archive
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unzip -oq "$swipath" -x boot0 "$dockerfs" -d "$image_path"
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## detect rootfs type
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rootfs_type=`grep " $target_path " /proc/mounts | cut -d' ' -f3`
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info "Extracting $dockerfs from swi"
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## vfat does not support symbol link
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if [ "$rootfs_type" != "vfat" ]; then
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mkdir -p "$image_path/{{ DOCKERFS_DIR }}"
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if [ -n "$install" ]; then
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TAR_EXTRA_OPTION="--numeric-owner --warning=no-timestamp"
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fi
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## extract docker archive
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unzip -oqp "$swipath" "$dockerfs" | tar xzf - -C "$image_path/{{ DOCKERFS_DIR }}" $TAR_EXTRA_OPTION
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else
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## save dockerfs archive in the image directory
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unzip -oq "$swipath" "$dockerfs" -d "$image_path"
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info "Unpacking $dockerfs delayed to initrd because $target_path is $rootfs_type"
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fi
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## remove installer since it's not needed anymore
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info "Remove installer"
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cleanup_swi_tmpfs
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## use new reduced-size boot swi
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local swi_boot_path="flash:$image_name/{{ ABOOT_BOOT_IMAGE }}"
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update_boot_config SWI "$swi_boot_path"
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update_boot_config SWI_DEFAULT "$swi_boot_path"
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## sync disk operations
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sync
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}
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write_machine_config() {
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## Detect SKU and create a hardware description file
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aboot_version=$(grep ^Aboot "$cmdline_base" | sed 's/^.*norcal.-//' | tail -n 1)
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if [ -x /bin/sysinit ]; then
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aboot_build_date=$(stat -c %y /bin/sysinit | sed 's/ /T/')
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else
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aboot_build_date="unknown"
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fi
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cat <<EOF > ${target_path}/machine.conf
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aboot_version=$aboot_version
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aboot_vendor=arista
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aboot_platform=x86_64-$aboot_machine
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aboot_machine=$aboot_machine
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aboot_arch=x86_64
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aboot_build_date=$aboot_build_date
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EOF
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chmod a+r "${target_path}/machine.conf"
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}
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platform_specific() {
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local platform="$(grep -Eo 'platform=[^ ]+' "$cmdline_base" | cut -f2 -d=)"
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local sid="$(grep -Eo 'sid=[^ ]+' "$cmdline_base" | cut -f2 -d=)"
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# set varlog size to 100MB
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local varlog_size=100
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# detect the size of the flash partition from name in Aboot/EOS/SONiC
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local flash_size=$(($(df | grep -E "$flash_re" | tr -s ' ' | cut -f2 -d' ') / 1000))
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if [ "$platform" = "raven" ]; then
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aboot_machine=arista_7050_qx32
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flash_size=2000
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echo "modprobe.blacklist=radeon,sp5100_tco acpi=off" >>/tmp/append
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fi
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if [ "$platform" = "crow" ]; then
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aboot_machine=arista_7050_qx32s
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flash_size=3700
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echo "modprobe.blacklist=radeon,sp5100_tco" >>/tmp/append
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fi
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if [ "$sid" = "Upperlake" ] || [ "$sid" = "UpperlakeES" ] ||
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[ "$sid" = "UpperlakeSsd" ]; then
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aboot_machine=arista_7060_cx32s
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flash_size=3700
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echo "amd_iommu=off" >> /tmp/append
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fi
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if [ "$sid" = "Gardena" ] || [ "$sid" = "GardenaSsd" ]; then
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aboot_machine=arista_7260cx3_64
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flash_size=28000
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fi
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if [ "$sid" = "Alhambra" ] || [ "$sid" = "AlhambraSsd" ]; then
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aboot_machine=arista_7170_64c
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flash_size=28000
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echo "hugepages=128" >> /tmp/append
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fi
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if [ "$sid" = "BlackhawkO" ]; then
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aboot_machine=arista_7060px4_32
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flash_size=28000
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fi
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if [ "$sid" = "BlackhawkDD" ]; then
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aboot_machine=arista_7060dx4_32
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flash_size=28000
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fi
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if [ "$platform" = "rook" ]; then
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echo "iommu=on intel_iommu=on tsc=reliable pcie_ports=native" >>/tmp/append
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echo "rhash_entries=1 usb-storage.delay_use=0" >>/tmp/append
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if [ -x /bin/readprefdl ]; then
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readprefdl -f /tmp/.system-prefdl -d > /mnt/flash/.system-prefdl
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elif [ -f /etc/prefdl ]; then
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cp /etc/prefdl /mnt/flash/.system-prefdl
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chmod a+r /mnt/flash/.system-prefdl
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fi
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echo "reassign_prefmem" >> /tmp/append
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fi
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if [ $flash_size -ge 28000 ]; then
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varlog_size=4096
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elif [ $flash_size -ge 3700 ]; then
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varlog_size=400
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fi
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echo "varlog_size=$varlog_size" >>/tmp/append
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# disable deterministic interface naming
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echo "net.ifnames=0" >>/tmp/append
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}
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get_uuid_for() {
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local dev="$1"
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if type lsblk 2>&1 > /dev/null; then
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lsblk "$dev" -n --output UUID
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elif type blkid 2>&1 > /dev/null; then
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blkid | grep "^$dev" | sed -n "s/^.* UUID=\"//p" | grep -Eo '[^"]+'
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fi
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}
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write_boot_configs() {
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if $in_aboot; then
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# generate the default kernel parameters for the platform
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echo "$append" > $cmdline_base
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cat /etc/cmdline | sed "/^\(${bootconfigvars// /\|}\|crashkernel\|loglevel\|ignore_loglevel\)\(\$\|=\)/d;/^\$/d" >> $cmdline_base
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parse_environment_config >> $cmdline_base
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elif [ ! -f "$cmdline_base" ]; then
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# some systems were started with other versions of this script and therefore
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# do not have the $cmdline_base file. we assume that we are on Sonic or EOS.
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cat /proc/cmdline | sed -E 's/^(.*) rw .*$/\1/' | tr ' ' '\n' > $cmdline_base
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fi
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cp $cmdline_base /tmp/append
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platform_specific
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echo "rw loop=$image_name/fs.squashfs loopfstype=squashfs apparmor=1 security=apparmor quiet" >> /tmp/append
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# Pass the MAC address to the new kernel as a command line parameter. This makes it
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# possible to restore the MAC address in the new kernel without requiring driver modifications.
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if [ -f /sys/class/net/ma1/address ]; then
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echo "hwaddr_ma1=$(cat /sys/class/net/ma1/address)" >> /tmp/append
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elif [ -f /sys/class/net/eth0/address ]; then
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echo "hwaddr_ma1=$(cat /sys/class/net/eth0/address)" >> /tmp/append
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else
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err "Management port not found."
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fi
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# use extra parameters from kernel-params hook if the file exists
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if [ -f "$target_path/$kernel_params" ]; then
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cat "$target_path/$kernel_params" >> /tmp/append
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fi
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# setting root partition if not overridden by kernel-params
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if ! grep -q "root=" /tmp/append; then
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rootdev="$(mount | grep -E "$flash_re" | cut -f1 -d' ')"
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rootfstype="$(mount | grep -E "$flash_re" | cut -f5 -d' ')"
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rootuuid="$(get_uuid_for $rootdev)"
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if [ -z "$rootuuid" ] || [ "$rootfstype" = "vfat" ] ; then
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echo "root=$rootdev" >> /tmp/append
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else
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echo "root=UUID=$rootuuid" >> /tmp/append
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fi
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fi
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cat /tmp/append > $cmdline_image
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[ -e ${target_path}/machine.conf ] || write_machine_config
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}
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run_kexec() {
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local cmdline="$(cat $cmdline_image | tr '\n' ' ')"
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local kernel="${KERNEL:-$(find $image_path/boot -name 'vmlinuz-*' -type f | head -n 1)}"
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local initrd="${INITRD:-$(find $image_path/boot -name 'initrd.img-*' -type f | head -n 1)}"
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if $verbose; then
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# show systemd showdown sequence when verbose is set
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cmdline="$cmdline systemd.show_status=true"
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else
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# Start showing systemd information from the first failing unit if any.
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# systemd.show_status=false or quiet can be used to silence systemd entierly
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cmdline="$cmdline systemd.show_status=auto"
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fi
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kexec --load --initrd="$initrd" --append="$cmdline" "$kernel"
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[ -z "$testonly" ] || exit 0
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info "Kexecing..."
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kexec --exec
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}
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get_sorted_hooks() {
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echo $(find "$1" -name '[0-9][0-9]-*' -type f)
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}
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run_hooks() {
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if [ -d "$hook_path/$1" ]; then
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for hook in $(get_sorted_hooks "$hook_path/$1"); do
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if [ ! -z "$hook" ]; then
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info "Running hook $(basename $hook)"
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. "$hook"
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fi
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done
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fi
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}
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# In Aboot no option will be provided therefore these are the default values to use
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in_aboot=true
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do_clean=true
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do_install=true
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do_kexec=true
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# prevent the flash from being cleaned if the do-not-clean file exists
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if [ -f "$target_path/$do_not_clean" ]; then
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do_clean=false
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fi
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# Parse the cmdline options (used from EOS or from SONiC)
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if [ ! -z "$install" ]; then
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# install from SONiC or EOS
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in_aboot=false
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do_clean=false
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do_kexec=false
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elif [ ! -z "$kexec" ]; then
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# kexec from SONiC or EOS
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in_aboot=false
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do_install=false
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do_clean=false
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elif [ $# -ne 0 ]; then
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echo "usage: $0 (see code)"
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exit 1
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fi
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# Verbosity can be defined by the caller, default to false otherwise
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verbose=${verbose:-false}
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if [ -f "$target_path/verbose-boot" ] ||
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[ "$(get_boot_config VERBOSE)" = "1" ] ||
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! $in_aboot; then
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verbose=true
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fi
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# enable shell debug mode to get the most verbosity
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if $verbose; then
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set -x
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fi
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# install the image if newer
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if $do_install; then
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# we expect the swi to install to be a non empty file
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if [ ! -s "$swipath" ]; then
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err "The swipath= environment variable does not point to a valid SWI"
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exit 1
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fi
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# check the hash file in the image, and determine to install or just skip
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GIT_REVISION=$(unzip -p "$swipath" .imagehash)
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LOCAL_IMAGEHASH=$(cat $image_path/.imagehash 2>/dev/null || true)
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if [ "$GIT_REVISION" != "$LOCAL_IMAGEHASH" ] || [ ! -z "$force" ]; then
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if $do_clean; then
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info "Cleaning flash content $target_path"
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clean_flash
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fi
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info "Installing image under $image_path"
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extract_image
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info "Generating boot-config, machine.conf and cmdline"
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write_boot_configs
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run_hooks post-install
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else
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info "Using previously installed image"
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fi
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fi
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# chainloading using kexec
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if $do_kexec; then
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run_hooks pre-kexec
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update_next_boot
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run_kexec
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fi
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