Hi Jan,

Thanks for reviewing. I’ve updated the patch according to your suggestions 
in v2. 
Link: [PATCH v2 1/3] installer: allow unattended mode to abort with 
configurable timeout <https://groups.google.com/g/isar-users/c/6pESivCRSVg>

Many thanks,
Badrikesh
On Friday, December 26, 2025 at 4:30:54 PM UTC+5:30 Jan Kiszka wrote:

> On 25.12.25 22:31, 'Badrikesh Prusty' via isar-users wrote:
> > Add a 5-second countdown before unattended installation starts. Allow
> > users to abort unattended mode via keypress. Notify all console instances
> > via a shared file (`/tmp/attended_mode_trigger`) so the abort applies
> > across all consoles.
> > 
> > Signed-off-by: Badrikesh Prusty <badrikes...@siemens.com>
> > ---
> > RECIPE-API-CHANGELOG.md | 6 ++++++
> > .../files/usr/bin/deploy-image-wic.sh | 15 +++++++++++++++
> > 2 files changed, 21 insertions(+)
> > 
> > diff --git a/RECIPE-API-CHANGELOG.md b/RECIPE-API-CHANGELOG.md
> > index 3af91541..cd1f1fd4 100644
> > --- a/RECIPE-API-CHANGELOG.md
> > +++ b/RECIPE-API-CHANGELOG.md
> > @@ -941,3 +941,9 @@ Example: To bundle multiple target images, set the 
> following in local.conf:
> > ```
> > INSTALLER_TARGET_IMAGES = "isar-image-base isar-image-debug 
> isar-image-ci"
> > ```
> > +
> > +### Allow unattended installation to be interrupted by keypress
> > +
> > +Add a 5-second countdown before unattended installation starts. Allow 
> users to
> > +abort unattended mode via keypress. Notify all console instances via a 
> shared
> > +file (`/tmp/attended_mode_trigger`) so the abort applies across all 
> consoles.
> > diff --git 
> a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh 
> b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
> > index 9bd47e9f..5736a861 100755
> > --- 
> a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
> > +++ 
> b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
> > @@ -10,6 +10,21 @@ SCRIPT_DIR=$( dirname -- "$( readlink -f -- "$0"; )"; 
> )
> > 
> > . "${SCRIPT_DIR}/../lib/deploy-image-wic/handle-config.sh"
> > 
> > +if $installer_unattended; then
> > + abort_file=/tmp/attended_mode_trigger
> > + for ((i=5; i>0; i--)); do
> > + echo -ne "\rUnattended installation will start in $i seconds. Press 
> any key to switch to attended mode..."
> > +
> > + # Switch to attended mode if the abort file exists or any key pressed 
> during countdown
> > + # Create abort file to notify all other console instances to abort
> > + if [ -f "$abort_file" ] || read -n 1 -t 1; then
> > + installer_unattended=false
> > + touch "$abort_file"
> > + break
> > + fi
> > + done
> > +fi
>
> This should be opt-in, and the timeout may deserve to be configurable.
>
> Jan
>
> > +
> > if ! $installer_unattended; then
> > installer_image_uri=$(find "$installdata" -type f -iname "*.wic*" -a 
> -not -iname "*.wic.bmap" -exec basename {} \;)
> > if [ -z "$installer_image_uri" ] || [ ! -f 
> "$installdata/$installer_image_uri" ]; then
>
>

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