USB flash drive support/usage
Dan Nelson
dnelson at allantgroup.com
Tue Dec 21 09:06:58 PST 2004
In the last episode (Dec 21), Kenneth W Cochran said:
> I have some questions about the little USB flash drives...
>
> Is there a FAQ or some documentation on them? So far I haven't
> found much in the Handbook or manpages. Pointers welcome. :)
>
> Do I need any driver(s) besides umass(4) & its required kernel
> options?
Nope. just what's listed in the EXAMPLES section of the manpage.
> Any differences between 4.x and 5.x support for them?
5.x supports more devices, and supports them better :) There are a
numbers of quirks entries in umass.c for misbehaving devices.
> Apparently they come setup for a FAT32 filesystem - can I format them
> for other filesystems (e.g. linux-ext2, BSD UFS/UFS2, MS NTFS) &
> expect them to work reliably?
You can, but FAT32 is definitely the most portable.
> Assuming they work (well) with FreeBSD, how do I properly set them up
> for UFS/UFS2? Do I need to fdisk and {disk,bsd}label first?
Just newfs on /dev/da# should be enough. You can fdisk or disklabel if
you want, but if you're not going to boot off it I don't think it buys
you anything.
--
Dan Nelson
dnelson at allantgroup.com
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