(fat_mount): Initialize clust_eof_marker to 0xff8, 0xfff8, or
0xffffff8, depending on fat size. Support for single active FAT
added (FAT32 extension). Changed the boundary between FAT12 and
FAT16, again. The Microsoft KB article Q65541 seems to be wrong
here, I go with mtools and the previous behaviour of grub: FAT12
iff number of clusters (without counting the two nonexisting
clusters) is less or equal 4095.
(fat_read): Report error if cluster number is too big, but not
greater or equal clust_eof_marker.
* stage2/fsys_reiserfs.c (journal_init): Fixed calculation of
journal_transaction.
okuji