Does Ubuntu Rescue Remix perform file-checks while booting?

I am asking this because I cloned a broken disk to a new one. There were zero errors.
(More info if you think this is of interest: http://old.nabble.com/ddrescue-results%3A-are-these-ok--td27209710.html)

Now I am wondering if e2fsck could screw up my clone, so I was considering to turn of the system, add another disk, boot Rescue Remix an other time, and clone the clone so that I have 2 clones :)

I realized that this wont make any sense if Rescue Remix would check and maybe corrupt my first clone at booting.

Could someone offer me advice for this sitation? I would be glad!