User did not grant permission about sudo-prompt

[probonopd]

I found the cause of this issue. AppImages are mounted using FUSE, which only allows execution permissions on the mounted image to the user that actually executed the image. So, su can't execute with it.

Check what the Etcher AppImage, which requires root, is doing. It's described at AppImage/AppImageKit#268 (comment)

[jorangreef]

Thanks @ravikp7

[jorangreef]

Thanks @DSBalaban would you be able to add a console.log(error) statement to the source in index.js over here: https://github.com/jorangreef/sudo-prompt/blob/master/index.js#L130 and let me know what you get?

And also the output of stdout and stderr which sudo-prompt returns to your callback.

[DSBalaban]

@jorangreef Thanks for replying.

I'll see if I can reproduce the error, as I'm no longer seeing it (magic, I tell you). Give me a bit of time.

EDIT: Seems that I can't get it to crash and burn again, but I am on macOS Sierra right now. I'll reopen if the problem pops up again, and give you the logs.

[jorangreef]

Sure, sorry for the late reply.

I will close in the mean time then if that's fine with you.

[ravikp7]

Hi @jorangreef I think I've got a similar issue. I'm also running a script from electron environment using sudo-prompt.exec from the app which is run without sudo permissions.
Everything works fine, no errors during development. The app works fine on mac with dmg built by electron-builder. Also no error with unpacked linux build from electron-builder.
I'm only having issues with AppImage (again built by electron-builder) on linux. Sudo-prompt throws this error after entering the password
Error: Command failed: "/usr/bin/pkexec" --disable-internal-agent env ELECTRON_RUN_AS_NODE=1 IPC_SERVER_ID=BB-server-17137 IPC_CLIENT_ID=BB-client-17137 /tmp/.mount_ASpV7H/usr/bin/beagleboot /tmp/.mount_ASpV7H/usr/bin/resources/app.asar/lib/elevate.js /usr/bin/env: ‘/tmp/.mount_ASpV7H/usr/bin/beagleboot’: Permission denied
Seems that the executable isn't accessible. Any suggestions, where it's going wrong?

[ravikp7]

I found the cause of this issue. AppImages are mounted using FUSE, which only allows execution permissions on the mounted image to the user that actually executed the image. So, su can't execute with it. I'd have to remount the AppImage as root to get it working.