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update: check for enough space before copying KERNEL and SYSTEM files, closes #1984

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This commit is contained in:
vpeter4 2013-03-05 12:49:50 +01:00
parent ef955a58e2
commit 0f6c67d008
2 changed files with 45 additions and 11 deletions
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4
packages/initramfs/sysutils/busybox-initramfs/config/busybox-initramfs.conf
View File

@ -209,7 +209,7 @@ CONFIG_CP=y
# CONFIG_FEATURE_DD_SIGNAL_HANDLING is not set
# CONFIG_FEATURE_DD_THIRD_STATUS_LINE is not set
# CONFIG_FEATURE_DD_IBS_OBS is not set
# CONFIG_DF is not set
CONFIG_DF=y
# CONFIG_FEATURE_DF_FANCY is not set
# CONFIG_DIRNAME is not set
# CONFIG_DOS2UNIX is not set
@ -273,7 +273,7 @@ CONFIG_SLEEP=y
# CONFIG_FEATURE_SORT_BIG is not set
# CONFIG_SPLIT is not set
# CONFIG_FEATURE_SPLIT_FANCY is not set
# CONFIG_STAT is not set
CONFIG_STAT=y
# CONFIG_FEATURE_STAT_FORMAT is not set
# CONFIG_STTY is not set
# CONFIG_SUM is not set

52
packages/initramfs/sysutils/busybox-initramfs/scripts/init
View File

@ -39,8 +39,10 @@
REBOOT="0"
MD5_FAILED="0"
MD5_NOCHECK="0"
SIZE_FAILED="0"
NBD_DEVS="0"
FLASH_FREE_MIN="5"
INSTALLED_MEMORY=`cat /proc/meminfo | grep 'MemTotal:' | awk '{print $2}'`
SYSTEM_TORAM_LIMIT=1024000
@ -444,21 +446,53 @@
MD5_FAILED="1"
fi
# update if md5 check is ok or .nocheck exists
if [ "$MD5_FAILED" -eq "0" -o "$MD5_NOCHECK" -eq "1" ] ; then
update "Kernel" "$UPDATE_KERNEL" "/flash/$IMAGE_KERNEL"
update "System" "$UPDATE_SYSTEM" "/flash/$IMAGE_SYSTEM"
update_bootloader
REBOOT="1"
# get sizes
FLASH_FREE=$(/bin/busybox df /flash/ | awk '/[0-9]%/{print $4}')
FLASH_FREE=$(( $FLASH_FREE * 1024 ))
OLD_KERNEL=$(/bin/busybox stat -t "/flash/$IMAGE_KERNEL" | awk '{print $2}')
OLD_SYSTEM=$(/bin/busybox stat -t "/flash/$IMAGE_SYSTEM" | awk '{print $2}')
NEW_KERNEL=$(/bin/busybox stat -t "$UPDATE_DIR/$UPDATE_KERNEL" | awk '{print $2}')
NEW_SYSTEM=$(/bin/busybox stat -t "$UPDATE_DIR/$UPDATE_SYSTEM" | awk '{print $2}')
# old KERNEL+SYSTEM+free space - new KERNEL+SYSTEM must be higher then 5MB
# at least 5MB free after update
TMP_SIZE=$(($OLD_KERNEL+$OLD_SYSTEM+$FLASH_FREE-$NEW_KERNEL-$NEW_SYSTEM))
FLASH_FREE_MIN=$(($FLASH_FREE_MIN*1024*1024))
if [ $TMP_SIZE -ge $FLASH_FREE_MIN ]; then
echo "Checking size: OK"
else
echo "Checking size: FAILED"
SIZE_FAILED="1"
fi
# update if size check is ok
if [ "$SIZE_FAILED" -eq "0" ] ; then
# update if md5 check is ok or .nocheck exists
if [ "$MD5_FAILED" -eq "0" -o "$MD5_NOCHECK" -eq "1" ] ; then
update "Kernel" "$UPDATE_KERNEL" "/flash/$IMAGE_KERNEL"
update "System" "$UPDATE_SYSTEM" "/flash/$IMAGE_SYSTEM"
update_bootloader
REBOOT="1"
else
/bin/busybox rm "$UPDATE_DIR/$UPDATE_KERNEL"
/bin/busybox rm "$UPDATE_DIR/$UPDATE_SYSTEM"
echo "md5 check failed. normal startup in 30s..."
/bin/busybox sync
/bin/busybox usleep 30000000
fi
/bin/busybox rm "$UPDATE_DIR/${UPDATE_KERNEL}.md5" &>/dev/null
/bin/busybox rm "$UPDATE_DIR/${UPDATE_SYSTEM}.md5" &>/dev/null
else
/bin/busybox rm "$UPDATE_DIR/$UPDATE_KERNEL"
/bin/busybox rm "$UPDATE_DIR/$UPDATE_SYSTEM"
echo "md5 check failed. normal startup in 30s..."
/bin/busybox rm "$UPDATE_DIR/${UPDATE_KERNEL}.md5" &>/dev/null
/bin/busybox rm "$UPDATE_DIR/${UPDATE_SYSTEM}.md5" &>/dev/null
echo "size check failed. normal startup in 30s..."
/bin/busybox sync
/bin/busybox usleep 30000000
fi
/bin/busybox rm "$UPDATE_DIR/${UPDATE_KERNEL}.md5" &>/dev/null
/bin/busybox rm "$UPDATE_DIR/${UPDATE_SYSTEM}.md5" &>/dev/null
fi
if test "$REBOOT" -eq "1"; then