Note:

This option was introduced in 3.10 and is quite important for initramfs init
scripts to work, thus enabling it by default is a good thing to do!

http://cateee.net/lkddb/web-lkddb/BINFMT_SCRIPT.html

Thanks Turl for pointing testing and pointing me to that option!

Note:

When running an auto-configured kernel within Hyper-V the virtual disks got
detected twice. Once by the new ATA subsystem and the other time by the old
and deprecated IDE subsystem.

Note:

besides by rootkits it is used very rarely
https://lkml.org/lkml/2008/2/10/328