K3b - cdrecord has no permission

Question

I use Ubuntu 12.04. Today I tried to burn an ISO file in a DVD-R disk using K3b. It used to work, but today, after one and a half minutes, it stopped saying that "cdrecord has no permission to open the device". I searched for a solution, and I found that I had to do something with k3bsetup. I tried to use it, but I had no idea what to do, and I couldn't find a guide, so I checked cdrecord and clicked apply. Now there is another error; it says "cdrecord returns an unknown error! (code 254)". What should I do?

Solution

I had similar problem and fixed it with the following steps:

1. Open k3b.
2. Go to Settings -> Setup system Permissions.
3. Select all options and apply.

It will ask for your password (you must be admin).

If it doesn't works, open k3b from terminal with sudo -H k3b, and try same steps as before.

Should help.

Comments

[Admin]

If you are an Ubuntu user, you don't need any burning software. Brasero Disc Burner is includen in Ubuntu, and my opinion: Is much better. So why not try it?

[Admin]

For newer versions of ubuntu take a look here: askubuntu.com/questions/1032903/…

[Admin]

If the problem comes from burning a BD disk then you cannot use Brasero, so ...

[user64386]

I selected all options except the "Use burning group", because when I tried, it said "There isn't group "burning" ". After that, there are some other errors, such as "OPC failed", "probably a buffer underrun occured", and once the "cdrecord returns an unknown error! (code 254)". I also tried reset, but still nothing.

[user64386]

I tried today again to write a DVD and it worked. Thanks!

[Chris Jenks]

I couldn't figure out how to "select all options", and selecting the drive and closing the dialog had no effect. However, sudo k3b did work. Thanks!