xorriso, the right way to do incremental backup

[Zhang_Weiwu <zhangweiwu@realss.com>]

I tried to follow the manual. Perhaps it's only me but I didn't get it.
I tried the following:

$ xorriso -outdev /dev/sr0 -speed 1 -blank as_needed -as mkisofs -exclude-list .exclude.lst -print-size .

which wrote 2GB data to the disk. Then I did:

$ xorriso -dev /dev/sr0 -speed 1 -as mkisofs -exclude-list .exclude.lst .


Hoping to see only a few bytes written to the same disco (perhaps the
only file changed is .bash_history) and it wrote another 2GB to the
disco. So this mustn't be the right way. Can you give some hint?

Best.

-- 
Zhang Weiwu recommends this hosting company to all technical professionals:
	https://www.nearlyfreespeech.net/
Zhang Weiwu recommends SmartSVN, it's the best intuitive graphical SVN software:
	http://www.syntevo.com/smartsvn/