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whiskerz007/README.md

Last active April 26, 2025 13:01
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Revisions

  1. whiskerz007 revised this gist Apr 26, 2025. 1 changed file with 2 additions and 2 deletions.
    4 changes: 2 additions & 2 deletions openwrt_sysupgrade_helper.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -2,7 +2,7 @@
    set -Eeuo pipefail

    # Verify supported platform (eg < 23.xx)
    sed -ne '/VERSION=/ s/.*"\(.*\)"/\1/p' /etc/os-release | awk -F. '{exit $1 > 23}' || \
    sed -ne '/VERSION=/ s/.*"\(.*\)"/\1/p' /etc/os-release | awk -F. '{exit $1 > 24}' || \
    {
    echo "The OpenWrt version is not supported." >&2
    exit 1
    @@ -19,7 +19,7 @@ CONTROL_FILE_LIST=$(ls -w 1 /overlay/upper/usr/lib/opkg/info/*.control)
    # Process .control files
    for CONTROL_FILE in $CONTROL_FILE_LIST; do
    # Store package names in variable
    PACKAGE_LIST="${PACKAGE_LIST-} $(sed -ne '/Package/ s/.*\: //p' $CONTROL_FILE)"
    PACKAGE_LIST="${PACKAGE_LIST-} $(sed -ne '/^Package/ s/.*\: //p' $CONTROL_FILE)"

    # Get dependency list
    DEPS=$(sed -ne '/Depends/ s/.*: //p' $CONTROL_FILE | sed -e 's/,//g')
  2. whiskerz007 revised this gist Sep 30, 2024. 1 changed file with 14 additions and 0 deletions.
    14 changes: 14 additions & 0 deletions README.md
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,14 @@
    # OpenWrt sysupgrade Helper

    This script will do the following:

    - Gather list of installed packages that does not exist in the ROM
    - Create a script to reinstall the packages
    - Add the newly created script to ```/etc/rc.local```

    Run this script before the sysupgrade process. Once flashing has started, wait for the router to reboot __two__ times.
    The script will remove itself after successful execution.

    ```sh
    ash -c "$(wget -qO - https://gist.github.com/whiskerz007/a01848c69f6c819fff4512827929da7e/raw/openwrt_sysupgrade_helper.sh)"
    ```
  3. whiskerz007 created this gist Sep 30, 2024.
    70 changes: 70 additions & 0 deletions openwrt_sysupgrade_helper.sh
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,70 @@
    #!/usr/bin/env ash
    set -Eeuo pipefail

    # Verify supported platform (eg < 23.xx)
    sed -ne '/VERSION=/ s/.*"\(.*\)"/\1/p' /etc/os-release | awk -F. '{exit $1 > 23}' || \
    {
    echo "The OpenWrt version is not supported." >&2
    exit 1
    }

    # Verify root user is executing the script
    if [ $(id -u) -ne 0 ]; then
    echo "This script must be ran as 'root'. Exiting without making changes." >&2
    exit 1
    fi

    CONTROL_FILE_LIST=$(ls -w 1 /overlay/upper/usr/lib/opkg/info/*.control)

    # Process .control files
    for CONTROL_FILE in $CONTROL_FILE_LIST; do
    # Store package names in variable
    PACKAGE_LIST="${PACKAGE_LIST-} $(sed -ne '/Package/ s/.*\: //p' $CONTROL_FILE)"

    # Get dependency list
    DEPS=$(sed -ne '/Depends/ s/.*: //p' $CONTROL_FILE | sed -e 's/,//g')

    for DEP in $DEPS; do
    # Store unique dependencies in variable
    if ! echo "${NEEDED-}" | grep -Fqe "$DEP"; then
    NEEDED="${NEEDED-} $DEP"
    fi
    done
    done

    # Get list of packages that are not dependent of another
    for PACKAGE in $PACKAGE_LIST; do
    if ! echo "$NEEDED" | grep -Fqe "$PACKAGE" && ! [ -f /rom/usr/lib/opkg/info/${PACKAGE}.control ]; then
    PACKAGES="${PACKAGES:-} $PACKAGE"
    fi
    done

    # Create firstboot script to reinstall packages
    FIRSTBOOT_FILE=/etc/config/__firstboot
    RC_LOCAL_FILE=/etc/rc.local
    cat << EOF > $FIRSTBOOT_FILE
    #!/usr/bin/env ash
    set -Eeuo pipefail
    opkg update
    opkg install $PACKAGES
    TEMP_FILE=\$(mktemp)
    sed "/${FIRSTBOOT_FILE//\//\\/}/d" $RC_LOCAL_FILE > \$TEMP_FILE
    mv \$TEMP_FILE $RC_LOCAL_FILE
    rm \$0
    reboot
    EOF
    chmod +x $FIRSTBOOT_FILE

    # Append firstboot script to rc.local
    RC_LOCAL_LINE_NUMBER=$(awk '/exit 0/{ print NR; exit }' $RC_LOCAL_FILE)
    if [ -z ${RC_LOCAL_LINE_NUMBER} ]; then
    echo $FIRSTBOOT_FILE >> $RC_LOCAL_FILE
    else
    TEMP_FILE=$(mktemp)
    awk -v line="$RC_LOCAL_LINE_NUMBER" -v file="$FIRSTBOOT_FILE" 'NR==line{1; print file}1' $RC_LOCAL_FILE > $TEMP_FILE
    mv $TEMP_FILE $RC_LOCAL_FILE
    fi

    echo "Successfully created sysupgrade helper script. Proceed to sysupgrade process."