If Russian language was selected for installation, Disk Druid messages are unreadable, just like wrong locale or wrong table was used during .po formatting. For example, it should be "sOZDANIE USTROJSTWA RAID", but now it looks like "A^WTP]XU cab`^YabRP RAID". If you are not familiar with Cyrillic, you still are able to see that capital and small letters are mixed in some words. The same bad thing happened for message that appears during X configuration test - I was unable to read my own translation. All other stages of installation process - OK. This bug wasn't present in RC1, what happened? :-( As for Ukrainian, everyting is OK now.
verified that the messages for the RAID button appear as described above ...
As you see above, Bugzilla is not 8bit-aware, it cleaned 8th bit on KOI8-R text. To find out how messages should really look, you may select koi8-r font in gnome-terminal and find appropriate pair of messages in it.
I mean, pair of messages in ru.po
I found the reason. Looks like you removed from instimage/usr/lib/locale all locales, that are not listed in anaconda/lang-table. In glibc-2.1.92 directory /usr/lib/locale/ru_RU.KOI8-R disappeared and /usr/lib/locale/ru_RU.koi8r appeared. Because /usr/lib/locale/ru_RU is for ISO8859-5 locale, that is not used in installation process, you shoud remove ru_RU from instimage/usr/lib/locale and leave ru_RU.koi8r there, that in this new glibc is the same like ru_RU.KOI8-R, listed in lang-table. I copied ru_RU.koi8r from my /usr/lib/locale to instimage, created new stage2.img with mkisofs and tested nfs install - everything is OK.
This bug is still present in 7.1 beta1. Are you going to fix it? I already supplied all necessary information.
resolved in Fisher