If you want to burn a multi session disc in Linux then use the below procedure. For the 1st session copy the ISO image to a data CD or create an ISO image burn ISO image with option-multi for cdrecord. The command for the same is -
For the 2nd session, before creating the ISO image, it is necessary to know 2 parameters.
% cdrecord speed =X dev =X,Y,Z -multi -v -eject -data ./backup.iso
Achieving ISO image by specifying 2 parameters number1, number2 and the device associated with the drive (eg / dev / hdc)
% cdrecord dev =X,Y,Z -msinfo number1,number2
Burn the ISO image with option-multi session -
% mkisofs -R -r -J -C number1,number2 -M /dev/hdc -o .
For creating ISO image as a second session, third session burn the ISO image without the option-multi -
% cdrecord speed =X dev =X,Y,Z -multi -v -eject -data .
% cdrecord speed =X dev =X,Y,Z -v -eject -data ./image_2.iso