[I'm not very experienced, but I'll try to help, so sorry by any mistake] As I know, there's no relation between them. Boot's block size is always the same, but you can change your fs' block size in /usr/src/linux/include/linux/fs.h, changing BLOCK_SIZE_BITS value (default 10, 'cause 2 ^ 10 = 1K). I think that once linux uses VFS, all fs are going to use the same BLOCK_SIZE. Daniel Creão On Tue, 16 Nov 2004 01:01:02 +0800, Bao zhao <paozhaokeats@xxxxxxxxxxx> wrote: > In ext2 , It seems superblock always starts from 1024bytes ,ie. boot > block occupies the first 1K of partition . There is no relation between > boot block's size and file system's block sizes. Am I right? > what about other fs? > > Thank in advance for anyone's help! > > Bao Zhao -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/