On Nov 11, 2008 19:42 -0800, Valerie Aurora Henson wrote: > Use the following mke2fs command to produce a file system with more > than 2^32 blocks: > > $ mke2fs -t ext4 -O 64bit -b 4096 -N 200000 <device> Ted, this actually exposes a bug in mke2fs, in that the device size to "type" detection code is broken. Val was reporting that running on a 16TB device would pick the "floppy" type and try to use 1024-byte blocks and 1 inode per 1024 bytes, which would exceed the 2^32 inode limit. Hence the current requirement to specify a 4096-byte blocksize and a hard limit on the number of inodes. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html