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franmm

Member

Registered: 2026-04-04

Posts: 11  

deb-cdrom line from /etc/apt/sources.list is not deleted after install

Good afternoon,

I've noticed that after installing Devuan Excallibur, I manually need to comment (or delete) the line that begins with deb-cdrom on the /etc/apt/sources.list file.

If I don't do that, I will not be able to update the system, as apt warns me about this.

Why the line that begins with "deb-cdrom" is not automatically commented or deleted just after the system is installed, like other distros? I mean, why do I need to do this manually?

Thank you for you patience and help.

rolfie

Member

Registered: 2017-11-25

Posts: 1,425  

Re: deb-cdrom line from /etc/apt/sources.list is not deleted after install

This line remains listed in the sources.list when there is no network connection during installation, or if you do deny the question for a sever mirror connection. The installer assumes an offline installation and leaves the cdrom line.

Last edited by rolfie (Today 13:11:32)

franmm

Member

Registered: 2026-04-04

Posts: 11  

Re: deb-cdrom line from /etc/apt/sources.list is not deleted after install

@rolfie

Thank you for the answer.

When installing Devuan, the installer asked me if I wanted to add repos and I said yes. My sources.list, after booting to the fresh install, looks like this:

deb cdrom:[Devuan GNU/Linux 6.1.0 excalibur amd64 - desktop 20251225]/ excalibur contrib main non-free non-free-firmware

deb http://deb.devuan.org/merged excalibur main non-free-firmware
deb-src http://deb.devuan.org/merged excalibur main non-free-firmware

deb http://deb.devuan.org/merged excalibur-security main non-free-firmware
deb-src http://deb.devuan.org/merged excalibur-security main non-free-firmware

# excalibur-updates, to get updates before a point release is made;
# see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports
deb http://deb.devuan.org/merged excalibur-updates main non-free-firmware
deb-src http://deb.devuan.org/merged excalibur-updates main non-free-firmware

After trying to update via sudo apt update, apt warns be about not detecting a CD (the usb that I installed Devuan with) and halts. A '#' puted at the beginning of its line solves this.

---

Thing is, Devuan detected that I have internet (asking me to connect to a wifi), it connects, then after a few steps, it asks me if I want to add sources (apart from the "CD/DVD" one). If I clicked yes to that, and Devuan doesn't automatically delete or comment with a '#', it means that something is not working as expected. When installing Debian Trixie, last step of installation is "Removing CD/DVD source from sources.list...", This doesn't happen to me on Devuan Excalibur.

If someone has the same problem I would be glad to know it, and if this only happens to me, I would investigate about this on my (little) free time. Thanks!

rolfie

Member

Registered: 2017-11-25

Posts: 1,425  

Re: deb-cdrom line from /etc/apt/sources.list is not deleted after install

Looks like you had network, but you must have denied using a mirror.

BTW: Debian and Devuan installers are similar but not identical. I am always doing an offline install w/o network and mirror, setting that up is the first step after a sucessful reboot for me.

franmm

Member

Registered: 2026-04-04

Posts: 11  

Re: deb-cdrom line from /etc/apt/sources.list is not deleted after install

you must have denied using a mirror.

Humm no, in fact, I selected a mirror!

As I said,

the installer asked me if I wanted to add repos and I said yes.

(I did this installation a couple of days ago, so everything I'm writing is from memory; some things may not be spelled correctly).

Specifically, it asked me a country and a location, and I selected Spain, it showed me deb.devuan.org and es.deb.devuan.org (or something like that).

Selected deb.devuan.org, so I suppose that's why my sources.list is not empty with only the CD/DVD source writed.

Last edited by franmm (Today 14:05:42)

rolfie

Member

Registered: 2017-11-25

Posts: 1,425  

Re: deb-cdrom line from /etc/apt/sources.list is not deleted after install

Strange, in this case the line should have been commented out.

Maybe I give it a try in a VM, you used 6.1.0?

franmm

Member

Registered: 2026-04-04

Posts: 11  

Re: deb-cdrom line from /etc/apt/sources.list is not deleted after install

@rolfie

Yes, Devuan 6.1.0.