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fwupdate: verify partitions size before proceeding

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This commit is contained in:
Calin Crisan 2018-11-22 19:34:40 +02:00
parent d86eba8728
commit 47dd100f6d
1 changed files with 44 additions and 2 deletions
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46
board/common/overlay/sbin/fwupdate
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@ -37,7 +37,6 @@ SYS_VERSION_FILE=/etc/version
SYS_BOARD_FILE=/etc/board
OS_CONF=/data/etc/os.conf
BOOT_DEV=$(mount | grep /boot | cut -d ' ' -f 1)
MIN_FREE_DISK=$((500*1024)) # 500 MB
VER_FILE=version
ROOT_INFO_FILE=root_info
@ -61,6 +60,21 @@ DD_LOG_FILE=dd.log
DD_PID_FILE=dd.pid
#### disk & partition devices ####
BOOT_DEV=$(mount | grep /boot | cut -d ' ' -f 1)
ROOT_DEV=${BOOT_DEV:0:-1}2
DISK_DEV=$(mount | grep /boot | cut -d ' ' -f 1)
if [[ "$ROOT_DEV" =~ ^([/a-z0-9]+)(p[0-9])$ ]]; then # e.g. /dev/mmcblk0p2
DISK_DEV=${BASH_REMATCH[1]}
elif [[ "$ROOT_DEV" =~ ^([/a-z0-9]+)([0-9])$ ]]; then # e.g. /dev/sdc2
DISK_DEV=${BASH_REMATCH[1]}
else
echo "cannot identify disk device from $ROOT_DEV" 1>&2
exit 1
fi
#### versions ####
function show_versions() {
@ -69,7 +83,7 @@ function show_versions() {
show_json=$1
# the /usr/libexec/list-versions-* helpers return a table with the following format:
# <version>|<prerelease>|<board>|<url>
# <version>|<prerelease>|<board>|<url>|<date>
versions=$(FW_USERNAME=$os_firmware_username FW_PASSWORD=$os_firmware_password \
/usr/libexec/list-versions-$os_firmware_method $os_firmware_repo)
@ -218,6 +232,34 @@ function do_extract() {
cat $DECOMPRESS_LOG_FILE
exit 1
fi
# verify available partition space
fw_boot_info=$(fdisk --bytes -l -o device,start,end,size $FW_DIR/$FW_FILE_EXTR | grep "${FW_FILE_EXTR}1")
fw_boot_info=($fw_boot_info)
fw_boot_size=${fw_boot_info[3]}
fw_root_info=$(fdisk --bytes -l -o device,start,end,size $FW_DIR/$FW_FILE_EXTR | grep "${FW_FILE_EXTR}2")
fw_root_info=($fw_root_info)
fw_root_size=${fw_root_info[3]}
disk_boot_info=$(fdisk --bytes -l -o device,start,end,size $DISK_DEV | grep $BOOT_DEV)
disk_boot_info=($disk_boot_info)
disk_boot_size=${disk_boot_info[3]}
disk_root_info=$(fdisk --bytes -l -o device,start,end,size $DISK_DEV | grep $ROOT_DEV)
disk_root_info=($disk_root_info)
disk_root_size=${disk_root_info[3]}
if [[ $disk_boot_size -lt $fw_boot_size ]]; then
echo "not enough space on boot partition ($fw_boot_size needed, $disk_boot_size available)" 1>&2
exit 1
fi
if [[ $disk_root_size -lt $fw_root_size ]]; then
echo "not enough space on root partition ($fw_root_size needed, $disk_root_size available)" 1>&2
exit 1
fi
# TODO verify hash
}