K3b Blu-ray multisession disc

[tis]

Hi,

I have problems when i would like to continue my prev backup bd-r and br-re discs. I've created some annual backups from my photos and drawings and progs and ... when I've upgraded the DVD writer to a Blu-Ray writer.
It works well, creates and can read back the written data from the disc.

I've created Multisession Discs (start multisession option), so it works, but I cannot continue. (it works well with the dvd or cd discs)
When I'm trying to continue it sais "Az adathordozó nem többszakaszos típusú, és nem tartalmaz ISO 9660 fájlrendszert. N..." that means something like that it cannot recognize well the disc/session it thinks it is not multisession disc.
When I open hardware/disc info from menu, it displays an "empty" screen about disc. it sais the label, it sais "bővíthető" that means i can continue, "hiba adathordozó" means that there is an error about detecting the disc. below that is empty only the two label visible "Adathordozó" and "ISO 9660-fájlrendszer-infók", but no data there...

Code: Select all

uname -a
Linux localhost.localdomain 6.6.116-desktop-1.mga9 #1 SMP PREEMPT_DYNAMIC Mon Nov  3 15:35:03 UTC 2025 x86_64 GNU/Linux

rpmquery k3b
k3b-23.04.3-1.mga9


[tis]

I've downloaded the current version of k3b source, my problem is that i cannot compile it to mga9, it wants extra-cmake-modules at least v6.1. (and other dependencies kf6,qt6,...) So I'm finding which version I can try.

[tis]

And an another error, the Disc Erase don't work in k3b. it displays that it does something and everything is ok, but nothing happened

For erase I found: (https://forums.linuxmint.com/viewtopic.php?t=396212 and works well i think, testing if it is rewriteable again or not)

Code: Select all

xorriso -outdev /dev/sr0 -blank as_needed
GNU xorriso 1.5.4 : RockRidge filesystem manipulator, libburnia project.

Drive current: -outdev '/dev/sr0'
Media current: BD-RE
Media status : is written , is appendable
Media summary: 1 session, 13439966 data blocks, 25.6g data, 20.7g free
Beginning to blank medium in mode 'fast'.
Blanking done
xorriso : NOTE : Re-assessing -outdev '/dev/sr0'
Drive current: -outdev '/dev/sr0'
Media current: BD-RE
Media status : is blank
Media summary: 0 sessions, 0 data blocks, 0 data, 46.4g free


[tis]

I think disc erase with xorriso works well and -blank all works too.
If u try to write out your image with growisofs it can erase the disc before write.

Back to K3B...
k3b can write Blu-ray only with growisofs tool, and if u enable the erase before write in k3b settings, it can erase the disc.
Unfortunately i think my once used rewiteable BD-RE-DL disc is bad , always fails near at 4GB but sometimes it can go through 8GB, 17GB, ..

I've loaded my backup system mga8 and there is k3b 20.x that can read disc info, erase disc not works, I couln't try to continue multisesion blu-ray...