Journaling and indexing
Start by downloading tune2fs from http://www.kurobox.com/downloads/gentoo and FTP it to /bin on your kuro which should still be in EM mode.
format as ext3
#mke2fs -jv /dev/hda1
enable full journaling and indexing
#tune2fs -O dir_index /dev/hda1
#tune2fs -O has_journal -o journal_data /dev/hda1
tune startup checks
#tune2fs -c 90 -i 120 /dev/hda1
Show current options
#tune2fs -l /dev/hdXY
Repeat these steps for the rest of your partitions except your swap partition.