CF card and /dev filesystem entries
Doug White
dwhite at gumbysoft.com
Sat Nov 19 16:49:53 PST 2005
On Thu, 17 Nov 2005, Oliver Fromme wrote:
> Brian Candler <B.Candler at pobox.com> wrote:
> > However, when I insert a CF card with normal partioning I need /dev/da0s1,
> > and this is not present in the /dev filesystem because the partition table
> > has not been read.
> >
> > # mount -t msdos /dev/da0s1 /mnt/cf
> > mount_msdosfs: /dev/da0s1: No such file or directory
> >
> > Just reading the first block is not sufficient:
> >
> > # dd if=/dev/da0 of=/dev/null count=1
> > 1+0 records in
> > 1+0 records out
> > 512 bytes transferred in 0.040984 secs (12493 bytes/sec)
> > # mount -t msdos /dev/da0s1 /mnt/cf
> > mount_msdosfs: /dev/da0s1: No such file or directory
>
> I think devfs is updated when a descriptor on the device
> which was opended for writing is closed. But you don't
> actually have to write anything. That means, the following
> command should do it:
>
> # dd if=/dev/null of=/dev/da0 count=0
Or "fdisk da0" or "bsdlabel da0" or something like that :-)
--
Doug White | FreeBSD: The Power to Serve
dwhite at gumbysoft.com | www.FreeBSD.org
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