Search:

The file system in the cloop file cannot be changed and must be attached as read-only

sudo losetup --verbose --read-only /dev/cloop7 /media/sdc2/sda1_2017-03-04.cloop

I make a cloop file directly from the mounted file system like this:

$ genisoimage -input-charset ISO-8859-15 -R -l -D -V KNOPPIX_FS -quiet \
-no-split-symlink-components...