7bae388e2f
This commit adds support for changing the default console baud rate configured within the U-Boot bootloader. That default baud rate is exposed via the value of the U-Boot 'baudrate' environment variable. This commit removes logic that hardcoded the console baud rate to 115200 and instead ensures that the U-Boot 'baudrate' variable is always used when constructing the Linux kernel boot arguments used when booting Sonic. A change is also made to rc.local to ensure that the specified baud rate is set correctly in the serial getty service.
388 lines
14 KiB
Bash
Executable File
388 lines
14 KiB
Bash
Executable File
#!/bin/sh -x
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#
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# rc.local
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#
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# This script is executed at the end of each multiuser runlevel.
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# Make sure that the script will "exit 0" on success or any other
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# value on error.
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#
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# In order to enable or disable this script just change the execution
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# bits.
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#
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# By default this script does nothing.
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SONIC_VERSION=$(cat /etc/sonic/sonic_version.yml | grep "build_version" | sed -e "s/build_version: //g;s/'//g")
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FIRST_BOOT_FILE="/host/image-${SONIC_VERSION}/platform/firsttime"
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# Move sonic-environment to /etc/sonic
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SONIC_CONFIG_DIR="/host/image-${SONIC_VERSION}/sonic-config"
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SONIC_ENV_FILE=${SONIC_CONFIG_DIR}/sonic-environment
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if [ -d ${SONIC_CONFIG_DIR} -a -f ${SONIC_ENV_FILE} ]; then
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echo "moving file ${SONIC_ENV_FILE} to /etc/sonic" 1>&2
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mv ${SONIC_ENV_FILE} /etc/sonic
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fi
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# In case the unit is migrating from another NOS, save the logs
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log_migration() {
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echo $1 >> /host/migration/migration.log
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}
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# Import files from another NOS's partition onto SONiC
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nos_migration_import() {
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[ -f $1 ] && cp $1 $2 || log_migration "ERROR: $1 not found!"
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}
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# While migrating form another NOS, we need to preserve the MAC addresses
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# of eth0 (and eventually switchports).
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# Update the eth0 mac and also the EEPROM using ethtool so that subsequent
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# reboots use the NOS's mac.
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# Input : mgmt_interface.cfg file imported from the previous NOS.
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update_mgmt_interface_macaddr() {
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mgmt_config=$1
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if [ ! -f "$mgmt_config" ]; then
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log_migration "ERROR : unable update eth0 MAC : $mgmt_config not found!"
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return
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fi
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# Save the previous NOS's mac
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old_mac=`ip link show eth0 | grep ether | awk '{print $2}'`
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[ -z "$old_mac" ] && log_migration "Unable to retrieve old mac address !" && return
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# Extract, validate and set the eth0's mac address for the current session
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new_mac=$(grep "macaddr" $mgmt_config | awk -F'=' '{print $2}')
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log_migration "Setting eth0 mac as $new_mac."
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if [ `echo $new_mac | egrep "^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$"` ]; then
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ip link set eth0 down
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ip link set eth0 address $new_mac
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ip link set eth0 up
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else
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log_migration "ERROR: mac imported from NOS is invalid : $new_mac !"
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return
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fi
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# Get the ethtool magic and offset for changing the mac address in the EEPROM
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ethtool_magic=$(grep "ethtool_magic" $mgmt_config | awk -F'=' '{print $2}')
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ethtool_offset=$(grep "ethtool_offset" $mgmt_config | awk -F'=' '{print $2}')
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if [ -z "$ethtool_magic" ] || [ -z "$ethtool_offset" ]; then
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log_migration "Unable to retrieve ethtool params ($ethtool_magic,$ethtool_offset)"
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return
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fi
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log_migration "eth0 mac in EEPROM before update:"
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ethtool -e eth0 offset $ethtool_offset length 6 >> /host/migration/migration.log
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# Update the mac address in the EEPROM for subsequent reboots
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# Write only changed octets
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for i in 1 2 3 4 5 6; do
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offset=$(($ethtool_offset+$i-1))
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old_mac_octet="$(echo $old_mac | cut -d":" -f$i)"
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new_mac_octet="$(echo $new_mac | cut -d":" -f$i)"
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if [ "$old_mac_octet" != "$new_mac_octet" ]; then
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ethtool -E eth0 magic $ethtool_magic offset $offset value 0x$new_mac_octet
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if [ $? != 0 ]; then
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log_migration "ERROR: unable to update eth0 EEPROM!"
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log_migration "index $i, magic $ethtool_magic offset $offset, value $new_mac_octet"
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return
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fi
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fi
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done
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log_migration "eth0 mac in EEPROM after update:"
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ethtool -e eth0 offset $ethtool_offset length 6 >> /host/migration/migration.log
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}
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migrate_nos_configuration()
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{
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rm -rf /host/migration
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mkdir -p /host/migration
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# Extract the previous NOS's partition that contains the migration artifacts
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set -- $(cat /proc/cmdline)
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for x in "$@"; do
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case "$x" in
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nos-config-part=*)
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nos_dev="${x#nos-config-part=}"
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;;
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SONIC_BOOT_TYPE=fast*)
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sonic_fast_reboot=true
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;;
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esac
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done
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if [ -n "$nos_dev" ]; then
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# remove nos-config-part from cmdline
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sed -r -i.bak "s/nos-config-part=[^[:space:]]+//" /host/grub/grub.cfg
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# Mount the previous NOS's partition
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NOS_DIR=/mnt/nos_migration
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MG_GZFILE=$NOS_DIR/minigraph.xml.gz.base64.txt
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MG_FILE=$NOS_DIR/minigraph.xml
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ACL_GZFILE=$NOS_DIR/acl.json.gz.base64.txt
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ACL_FILE=$NOS_DIR/acl.json
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PORT_CONFIG_GZFILE=$NOS_DIR/port_config.json.gz.base64.txt
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PORT_CONFIG_FILE=$NOS_DIR/port_config.json
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SNMP_FILE=$NOS_DIR/snmp.yml
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mkdir -p $NOS_DIR
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mount $nos_dev $NOS_DIR
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if [ $? != 0 ]; then
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log_migration "ERROR: cannot mount $nos_dev"
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else
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# decode & unzip minigraph.xml.gz.base64.txt
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[ -f $MG_GZFILE ] && /usr/bin/base64 -d $MG_GZFILE | /bin/gunzip > $MG_FILE
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[ -f $ACL_GZFILE ] && /usr/bin/base64 -d $ACL_GZFILE | /bin/gunzip > $ACL_FILE
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[ -f $PORT_CONFIG_GZFILE ] && /usr/bin/base64 -d $PORT_CONFIG_GZFILE | /bin/gunzip > $PORT_CONFIG_FILE
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# Copy relevant files
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nos_migration_import $NOS_DIR/mgmt_interface.cfg /host/migration
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nos_migration_import $MG_FILE /host/migration
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nos_migration_import $ACL_FILE /host/migration
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nos_migration_import $PORT_CONFIG_FILE /host/migration
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nos_migration_import $SNMP_FILE /host/migration
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if [ "$sonic_fast_reboot" == true ]; then
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mkdir -p /host/fast-reboot
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nos_migration_import $NOS_DIR/arp.json /host/fast-reboot
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nos_migration_import $NOS_DIR/fdb.json /host/fast-reboot
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nos_migration_import $NOS_DIR/default_routes.json /host/fast-reboot
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fi
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umount $NOS_DIR
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rmdir $NOS_DIR
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fi
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[ -f /host/migration/mgmt_interface.cfg ] && update_mgmt_interface_macaddr /host/migration/mgmt_interface.cfg
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migration="TRUE"
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fi
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}
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firsttime_exit() {
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rm -rf $FIRST_BOOT_FILE
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exit 0
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}
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# Given a string of tuples of the form field=value, extract the value for a field
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# In : $string, $field
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# Out: $value
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value_extract() {
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set -- $string
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for x in "$@"; do
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case "$x" in
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$field=*)
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value="${x#$field=}"
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esac
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done
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}
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program_console_speed()
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{
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speed=$(cat /proc/cmdline | grep -Eo 'console=ttyS[0-9]+,[0-9]+' | cut -d "," -f2)
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if [ -z "$speed" ]; then
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CONSOLE_SPEED=9600
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else
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CONSOLE_SPEED=$speed
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fi
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# Set correct baud rate in getty service
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# First boot will find keep-baud argument with multiple baud rates as per Debian convention
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# Subsequent boots may have new baud rate without finding keep-baud argument
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grep agetty /lib/systemd/system/serial-getty@.service |grep keep-baud
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if [ $? = 0 ]; then
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sed -i "s|\-\-keep\-baud .* %I| $CONSOLE_SPEED %I|g" /lib/systemd/system/serial-getty@.service
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else
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sed -i "s|u' .* %I|u' $CONSOLE_SPEED %I|g" /lib/systemd/system/serial-getty@.service
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fi
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# Reload systemd config
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systemctl daemon-reload
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}
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#### Begin Main Body ####
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logger "SONiC version ${SONIC_VERSION} starting up..."
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# If the machine.conf is absent, it indicates that the unit booted
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# into SONiC from another NOS. Extract the machine.conf from ONIE.
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grub_installation_needed=""
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if [ ! -e /host/machine.conf ]; then
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onie_dev=$(blkid | grep ONIE-BOOT | head -n 1 | awk '{print $1}' | sed -e 's/:.*$//')
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mkdir -p /mnt/onie-boot
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mount $onie_dev /mnt/onie-boot
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onie_grub_cfg=/mnt/onie-boot/onie/grub/grub-machine.cfg
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if [ ! -e $onie_grub_cfg ]; then
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log_migration "$onie_grub_cfg not found"
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else
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. ./$onie_grub_cfg
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grep = $onie_grub_cfg | sed -e 's/onie_//' -e 's/=.*$//' | while read var ; do
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eval val='$'onie_$var
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echo "onie_${var}=${val}" >> /host/machine.conf
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done
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grub_installation_needed="TRUE"
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fi
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umount /mnt/onie-boot
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fi
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migrate_nos_configuration
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. /host/machine.conf
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program_console_speed
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if [ -f $FIRST_BOOT_FILE ]; then
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echo "First boot detected. Performing first boot tasks..."
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if [ -n "$aboot_platform" ]; then
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platform=$aboot_platform
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elif [ -n "$onie_platform" ]; then
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platform=$onie_platform
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else
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echo "Unknown SONiC platform"
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firsttime_exit
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fi
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# Try to take old configuration saved during installation
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# and create a flag in /tmp/ to let updategraph service know
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if [ -d /host/old_config ]; then
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mv -f /host/old_config /etc/sonic/
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rm -rf /etc/sonic/old_config/old_config
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touch /tmp/pending_config_migration
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elif [ -f /host/minigraph.xml ]; then
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mkdir -p /etc/sonic/old_config
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mv /host/minigraph.xml /etc/sonic/old_config/
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[ -f /host/acl.json ] && mv /host/acl.json /etc/sonic/old_config/
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[ -f /host/port_config.json ] && mv /host/port_config.json /etc/sonic/old_config/
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[ -f /host/snmp.yml ] && mv /host/snmp.yml /etc/sonic/old_config/
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touch /tmp/pending_config_migration
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elif [ -n "$migration" ] && [ -f /host/migration/minigraph.xml ]; then
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mkdir -p /etc/sonic/old_config
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mv /host/migration/minigraph.xml /etc/sonic/old_config/
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[ -f /host/migration/acl.json ] && mv /host/migration/acl.json /etc/sonic/old_config/
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[ -f /host/migration/port_config.json ] && mv /host/migration/port_config.json /etc/sonic/old_config/
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[ -f /host/migration/snmp.yml ] && mv /host/migration/snmp.yml /etc/sonic/old_config/
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touch /tmp/pending_config_migration
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[ -f /etc/sonic/updategraph.conf ] && sed -i -e "s/enabled=false/enabled=true/g" /etc/sonic/updategraph.conf
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else
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touch /tmp/pending_config_initialization
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fi
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# Notify firstboot to Platform, to use it for reboot-cause
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touch /tmp/notify_firstboot_to_platform
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# Create /host/reboot-cause/platform/ directory
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# can be used to track last reboot reason by some platforms
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if [ ! -d /host/reboot-cause/platform ]; then
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mkdir -p /host/reboot-cause/platform
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fi
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if [ -d /host/image-$SONIC_VERSION/platform/$platform ]; then
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dpkg -i /host/image-$SONIC_VERSION/platform/$platform/*.deb
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fi
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sync
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# If the unit booted into SONiC from another NOS's grub,
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# we now install a grub for SONiC.
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if [ -n "$onie_platform" ] && [ -n "$grub_installation_needed" ]; then
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grub_bin=$(ls /host/image-$SONIC_VERSION/platform/x86_64-grub/grub-pc-bin*.deb 2> /dev/null)
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if [ -z "$grub_bin" ]; then
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log_migration "Unable to locate grub package !"
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firsttime_exit
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fi
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dpkg -i $grub_bin > /dev/null 2>&1
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if [ $? != 0 ]; then
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log_migration "Unable to install grub package !"
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firsttime_exit
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fi
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# Determine the block device to install grub
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sonic_dev=$(blkid | grep SONiC-OS | head -n 1 | awk '{print $1}' | sed -e 's/[0-9]:.*$//')
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if [ -z "$sonic_dev" ]; then
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log_migration "Unable to determine sonic partition !"
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firsttime_exit
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fi
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grub-install --boot-directory=/host --recheck $sonic_dev 2>/dev/null
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if [ $? != 0 ]; then
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log_migration "grub install failed !"
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firsttime_exit
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fi
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# The SONiC "raw" build mode has already generated a proto grub.cfg
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# as part of the migration. Platform specific constants need to be
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# retrieved from installer.conf (if present) and assigned.
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. /usr/share/sonic/device/$platform/installer.conf
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if [ ! -z "$CONSOLE_PORT" ]; then
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field="\-\-port"
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string=$(grep $field /host/grub.cfg)
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value_extract $string $field
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console_port=$value
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if [ ! -z "$console_port" ] && [ "$console_port" != "$CONSOLE_PORT" ]; then
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sed -i -e "s/\-\-port=$console_port/\-\-port=$CONSOLE_PORT/g" /host/grub.cfg
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fi
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log_migration "grub.cfg console port=$console_port & installer.conf CONSOLE_PORT=$CONSOLE_PORT"
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fi
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if [ ! -z "$CONSOLE_DEV" ]; then
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field="console"
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string=$(grep $field /host/grub.cfg)
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value_extract $string $field
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console_dev_name=$(echo $value | sed -e "s/^.*=//" -e "s/,.*//")
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console_dev="${console_dev_name#ttyS}"
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if [ "$console_dev" != "$CONSOLE_DEV" ]; then
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sed -i -e "s/console=ttyS$console_dev/console=ttyS$CONSOLE_DEV/g" /host/grub.cfg
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fi
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log_migration "grub.cfg console dev=$console_dev & installer.conf CONSOLE_DEV=$CONSOLE_DEV"
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fi
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if [ ! -z "$VAR_LOG_SIZE" ]; then
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field="var_log_size"
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string=$(grep $field /host/grub.cfg)
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value_extract $string $field
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var_log_size=$value
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if [ ! -z "$var_log_size" ] && [ "$var_log_size" != "$VAR_LOG_SIZE" ]; then
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sed -i -e "s/var_log_size=$var_log_size/var_log_size=$VAR_LOG_SIZE/g" /host/grub.cfg
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fi
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log_migration "grub.cfg var_log_size=$var_log_size & installer.conf VAR_LOG_SIZE=$VAR_LOG_SIZE"
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fi
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# Set the root based on the label
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sonic_root=$(blkid | grep SONiC-OS | head -n 1 | awk '{print $1}' | sed -e 's/:.*$//')
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sonic_root=$(echo "$sonic_root" | sed 's/\//\\\//g')
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sed -i -e "s/%%SONIC_ROOT%%/$sonic_root/g" /host/grub.cfg
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# Add the Diag and ONIE entries
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mount $onie_dev /mnt/onie-boot
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. /mnt/onie-boot/onie/grub.d/50_onie_grub >> /host/grub.cfg
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umount /mnt/onie-boot
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# Initialize the SONiC's grub config
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mv /host/grub.cfg /host/grub/grub.cfg
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fi
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# Create dir where following scripts put their output files
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mkdir -p /var/platform
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# Kdump tools configuration
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sed -i -e "s/__PLATFORM__/$platform/g" /etc/default/kdump-tools
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firsttime_exit
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fi
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# Copy the fsck log into syslog
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if [ -f /var/log/fsck.log.gz ]; then
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gunzip -d -c /var/log/fsck.log.gz | logger -t "FSCK"
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rm -f /var/log/fsck.log.gz
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fi
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exit 0
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