If this is the right place to place this question?
I have a setup giving a 'df -h' size of 10.4GB.
The remaster fails producing 0 zero size iso.
if I 'mv' the contents of 'Downloads' to another drive the iso produced is 3.1GB.
The string I use is:-
mylivecd --xz --workdir=/mnt/data2T/workdir --nodir=^/mnt,^/media /mnt/data2T/working-images/my64-RC1_`date +%H%M%d%b%Y`.iso
Not sure what the question is ..... but if the livecd.sqfs file is greater than 4GB then the ISO will not build.
You reduced the size of the livecd.sqfs file by removing the Downloads content, and so the ISO built.
Using --nodir for the Downloads directory should have the same effect .... and no need to move the content.
The ISO is limited to a max size of 4GB for any one
file ..... as part of the ISO spec IIRC.
When the --workdir option is used, it must be manually deleted afterwards.
This is useful if one wishes to produce a livecd.sqfs file larger than 4GB and maybe use it on a LiveUSB.
The 4GB limit only applies to an ISO, not the livecd.sqfs file itself.
Thus larger files can be used on a LiveUSB because it can be built without an ISO by using the files themselves.