my problem is, that I never tried grub 2
its not to big, when this happens, there is no kernel panic
but in general, if you think to use SilTaz regular, its stupid to boot from the iso, because you will loose the home partition
and yes it all the time happens, that sometimes there are errors, when you compress the rootfs.gz and create the iso, which leads into kernel panic
so its normally better to start SliTaz from an USB Stick and work with tazusb writefs to collect experience..