Hi all: I found if i build ramdisk more than 16M, i'll got error at using mke2fs command. dd if=/dev/zero of=ramdisk bs=1024k count=20 /sbin/mke2fs -F m0 ramdisk mke2fs 1.36 (05-Feb-2005) mke2fs: bad blocks count - ramdisk why ? I used FC3 & eldk 3.1.1. Best Regard, Rober Hsu