Linux install failed -- permission denied?

[FrogFan]

Hello,

I'm trying my hand at Linux, trying to salvage a perfectly good desktop PC that can't run Windows 11.  I've chosen Linux Mint, and I'd like to run NextPVR on it.  I believe I've followed sub's installation instructions correctly, as follows:

ed@lacrosse:~$ curl https://nextpvr.com/nextpvr-helper.deb -O
  % Total    % Received % Xferd  Average Speed  Time    Time    Time  Current
                                Dload  Upload  Total  Spent    Left  Speed
100  4464  100  4464    0    0  34696      0 --:--:-- --:--:-- --:--:-- 34875

followed by:

ed@lacrosse:~$ sudo apt install ./nextpvr-helper.deb --install-recommends

After issuing the apt install command, the command line window filled up with output which I have not copied here to save space, but I can recreate it if necessary.  Of particular importance, though, it seems, is the last few lines of output:

Setting up libmediainfo-dev (24.01+dfsg-1build2) ...
Setting up nextpvr-helper (3.1) ...
HOME=/home/ed
Processing triggers for man-db (2.12.0-4build2) ...
Processing triggers for libc-bin (2.39-0ubuntu8.4) ...
N: Download is performed unsandboxed as root as file '/home/ed/nextpvr-helper.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

I'm basically a Linux idiot, so I have no idea what happened here.  Can anyone tell what I've done wrong, or do I need to send more information?

Edited to add: Well, I decided to go to localhost:8866 and I ended up in the right spot, so I'll try to configure NextPVR there. Meanwhile, I'm still wondering if I did something wrong to end up with the "permission denied" error.

Another edit: I just finished configuring NextPVR using localhost:8866 and all is well. I guess I didn't do anything wrong?

Thanks!

[mvallevand]

It is a security permission issue since part of the apt install doesn't like installing a deb file from a user folder even with sudo. Best to install from /tmp to avoid this message which is more a warning. No harm done.

Martin

[FrogFan]

It is a security permission issue since part of the apt install doesn't like installing a deb file from a user folder even with sudo.  Best to install from /tmp to avoid this message which is more a warning.  No harm done.

Martin

Thanks!  Things are working fine for me here but now I'm curious about how to avoid the message.  In particular, being very short on Linux skills, I'm struggling to understand how to install from a different folder.  Do you mean I should issue apt install or curl command from a different directory?  Or is it something else I need to adjust?

[mvallevand]

Quite simple before you download with curl

cd /tmp

and run apt there

Martin

[FrogFan]

Got it! Thanks!