(Gah... I meant this to be sent publically, not just privately ;-) zhuzhenhua wrote: > if in my product based ide disk, i want to it to support the > u-disk(with vfat fs), and can i set the root fs as vfat too? > if use vfat as rootfs, what's disadvantage of the selection? In theory, you could... BUT... FAT32 (and every other FAT variant) lacks: - Ownership metadata (uid/gid fields) - Permissions (mode: read/write/execute/sticky/suid/sgid) - Links (both hard-links and symbolic links) ... probably character devices, block devices, pipes and other numerous devices that 99.999999% of distributions rely on. Now, there is UMSDOS, which uses additional special files to emulate these on top of a standard MS-DOS filesystem ... mind you, it predates VFAT by many years, and so I'm not sure what it's support is like for long filenames. I also haven't seen it in the kernel File System menu for some time now. I'd recommend using an external initrd... or an initramfs-based kernel. That way it's just one or two files, not one or two hundred. ;-) -- Stuart Longland (aka Redhatter) .'''. Gentoo Linux/MIPS Cobalt and Docs Developer '.'` : . . . . . . . . . . . . . . . . . . . . . . .'.' http://dev.gentoo.org/~redhatter :.' International Asperger's Year (1906 ~ 2006) http://dev.gentoo.org/~redhatter/iay
Attachment:
signature.asc
Description: OpenPGP digital signature
