.AppImage extract files to /tmp with a wrong or strange permission for sudo user

[athenakia]

• Electron-Builder Version: 22.14.13

• Node Version: v16.13.2

• Electron Version: 15.5.2
• Electron Type (current, beta, nightly): current

• Target:

{
  "target": "AppImage",
  "arch": [
    "x64",
    "arm64"
  ]
}

Operating System: Ubuntu 20.04.2 LTS Kernel: Linux 5.4.0-107-generic Architecture: arm64

I'm building a Electron for Linux and package in AppImage. Every time when I run this app, it will extract its all files to /tmp/.mountAppNameXXX. As the screenshot shows, the .mount_xxx directory has a wrong or strange permission for super user or root. When using ls as a normal user, the permission display is all right. But when using ls as super user, the permission is all ??? In my situation, I want to copy a config template to a path which only super user can access, so I have to copy file in .mount_XXX with sudo but I cannot access all files in .mount_XXX. And anything I do with sudo to change its ownership or permission return "Permission denied"

[probonopd]

Every time when I run this app, it will extract its all files

No.

It mounts the files there. It does NOT extract them there. FUSE by default does not allow other users, including root, access its mounts.

So, works as designed.

[athenakia]

So how could I copy a config template bundled in app resource to a path which only super user can access? Any idea?

[probonopd]

So how could I copy a config template bundled in app resource

Your application needs to copy it out of the AppImage.

to a path which only super user can access?

Which means that your user needs to run the AppImage as root so that it can write to, e.g., /root.

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This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 30 days.

[github-actions[bot]]

This issue was closed because it has been stalled for 30 days with no activity.