this post was submitted on 23 Aug 2026
8 points (100.0% liked)

techsupport

3211 readers
12 users here now

The Lemmy community will help you with your tech problems and questions about anything here. Do not be shy, we will try to help you.

If something works or if you find a solution to your problem let us know it will be greatly apreciated.

Rules: instance rules + stay on topic

Partnered communities:

You Should Know

Reddit

Software gore

Recommendations

founded 3 years ago
MODERATORS
GatoB@lemmy.world
8
How Does One Mount a Multi-Session CD? (lemmy.darkc0de.one)
submitted 4 weeks ago* (last edited 4 weeks ago) by resterWink@lemmy.darkc0de.one to c/techsupport@lemmy.world
2 comments fedilink hide all child comments
 

So, I have had fun getting into some data CDs again. Writing data in single session TAO and with multi-session TAO CDs. I am not having issues with writing the sessions on Linux or OpenBSD, but I am having issues actually mounting any session other than the first one burned!

In cases where I am working on Linux I try to mount via
sudo mount -t iso9660 -o session=1 /dev/sr0 /mnt/cdrom yet it mounts session 0!

On OpenBSD I run this command doas mount_cd9660 -s {session-offset-sectors} /dev/cd0c /mnt/cdrom and it gives me the same behavior mounting the first burned session despite being directly given another.

Does anyone have some insight on to why this is?

P.S

  • The sector information for BSD was gathered with doas cdio info /dev/cd0c and on Linux via sudo cdrecord -minfo -dev=/dev/sr0
  • The CDs were burned with ISOs generated via mkisofs -R -J -o out.iso -iso-level 3 {directory}/ (the cdrtools version) and recorded to the medium via sudo cdrecord -v -multi -data -tao -eject -speed=52 -dev=/dev/sr0 out.iso on Linux and doas cdrecord -v -multi -data -tao -eject -speed=52 -dev=/dev/cd0c out.iso on OpenBSD
you are viewing a single comment's thread
view the rest of the comments
[–] resterWink@lemmy.darkc0de.one 2 points 3 weeks ago

The worst part is that every guide I have seen says that too. But in my verification of such claims I find that it is the first session that gets read rather than the last