1#!/bin/sh 2 3mmc_init() { 4 base_dir="/media/hostfw" 5 ro_dir="${base_dir}/running-ro" 6 running_dir="${base_dir}/running" 7 prsv_dir="${base_dir}/prsv" 8 staging_dir="${base_dir}/staging" 9 10 if [ ! -d "${ro_dir}" ]; then 11 mkdir -p "${ro_dir}" 12 fi 13 if [ ! -d "${running_dir}" ]; then 14 mkdir -p ${running_dir} 15 fi 16 if [ ! -d "${prsv_dir}" ]; then 17 mkdir -p "${prsv_dir}" 18 fi 19 if [ ! -d "${staging_dir}" ]; then 20 mkdir -p "${staging_dir}" 21 fi 22 23 # Mount the image that corresponds to the boot label as read-only to be used 24 # to populate the running directory. 25 boot_label="$(fw_printenv -n bootside)" 26 mount ${base_dir}/hostfw-${boot_label} ${ro_dir} -o ro 27 28 # Determine if the running dir contains the running version 29 running_label="" 30 running_label_file="${running_dir}/partlabel" 31 if [ -f "${running_label_file}" ]; then 32 running_label=$(cat ${running_label_file}) 33 fi 34 if [ "${running_label}" != "${boot_label}" ]; then 35 # Copy off the preserved partitions 36 # A line in the pnor.toc looks like this: 37 # partition05=SECBOOT,0x00381000,0x003a5000,00,ECC,PRESERVED 38 rm -f ${prsv_dir}/* 39 if [ -f ${running_dir}/pnor.toc ]; then 40 prsvs=$(grep PRESERVED ${running_dir}/pnor.toc) 41 for prsv in ${prsvs}; do 42 prsv=${prsv##partition*=} 43 prsv=$(echo ${prsv} | cut -d "," -f 1) 44 cp -p ${running_dir}/${prsv} ${prsv_dir} 45 done 46 fi 47 48 # Copy contents of running image to running dir 49 rm -f ${running_dir}/* 50 cp -p ${ro_dir}/* ${running_dir}/ 51 52 # Restore the preserved partitions. Ignore error, there may be none. 53 cp -p ${prsv_dir}/* ${running_dir}/ 2>/dev/null || true 54 rm -f ${prsv_dir}/* 55 56 # Clean up the staging dir in case of a failed update 57 rm -rf ${staging_dir}/* 58 59 # Save the label 60 echo "${boot_label}" > "${running_label_file}" 61 62 fi 63 64 # Mount alternate dir 65 if [ "${boot_label}" = "a" ]; then 66 alternate_label="b" 67 else 68 alternate_label="a" 69 fi 70 alternate_dir="${base_dir}/alternate" 71 if [ ! -d "${alternate_dir}" ]; then 72 mkdir -p ${alternate_dir} 73 fi 74 mount ${base_dir}/hostfw-${alternate_label} ${alternate_dir} -o ro 75 76 # setup host firmware runtime well known names 77 openpower-update-manager process-host-firmware 78} 79 80mmc_patch() { 81 # Patching is disabled if field mode is set 82 if [[ "$(fw_printenv fieldmode 2>/dev/null)" == "fieldmode=true" ]]; then 83 return 0 84 fi 85 86 boot_label="$(fw_printenv -n bootside)" 87 if [ "${boot_label}" = "a" ]; then 88 alternate_label="b" 89 else 90 alternate_label="a" 91 fi 92 93 # Create patch directories 94 patch_dir="/media/hostfw/patch-" 95 running_patch_dir="${patch_dir}${boot_label}" 96 if [ ! -d "${running_patch_dir}" ]; then 97 mkdir -p "${running_patch_dir}" 98 fi 99 alternate_patch_dir="${patch_dir}${alternate_label}" 100 if [ ! -d "${alternate_patch_dir}" ]; then 101 mkdir -p "${alternate_patch_dir}" 102 fi 103 104 # Create patch symlinks 105 symlink_base="/usr/local/share" 106 if [ ! -d "${symlink_base}" ]; then 107 mkdir -p "${symlink_base}" 108 fi 109 hostfw_symlink_base="${symlink_base}/hostfw" 110 if [ ! -d "${hostfw_symlink_base}" ]; then 111 mkdir -p "${hostfw_symlink_base}" 112 fi 113 114 ln -s "${running_patch_dir}" "${symlink_base}/pnor" 115 ln -s "${running_patch_dir}" "${hostfw_symlink_base}/running" 116 ln -s "${alternate_patch_dir}" "${hostfw_symlink_base}/alternate" 117} 118 119case "$1" in 120 mmc-init) 121 mmc_init 122 ;; 123 mmc-patch) 124 mmc_patch 125 ;; 126 *) 127 echo "Invalid argument" 128 exit 1 129 ;; 130esac 131