/dev/sda1 for usb stick...

At Thu, 10 Jan 2008 02:16:21 +0900 "google-rambo88" <rambo88@gmail.com> wrote:

>
>
> Hi,
>
> I can't see any /dev/sda* files under /dev.
> And my usb stick have fat32 partions already....
>
> if I make device by runing command "mknod /dev/sda1 b 8 1" , and then mount
> command is works well ( "mount -t vfat /dev/sda1 /mnt" ).
>
>
> but I don't want to issue "mknod" everytime when I plug in usb stick...
>
>
> I want this... right after plug-in usb stick , I can able to use "mount -t
> vfat /dev/sda1 /mnt"...
> namely, automatically generate /dev/sda1 file under /dev...
>
>
> I think ... my udev didn't work for usb stick...

Yes, there is something missing in you udev rules...

> should I use automount function from kernel configration?
>
>
> Have a day.
>
>
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> "Bill Marcum" <marcumbill@bellsouth.net> wrote in message
> news:slrnfo62t5.8d7.marcumbill@lark.localnet...
> > On 2008-01-08, google-rambo88 <rambo88@gmail.com> wrote:
> > >
> > >
> > >
> > > right after plug usb-stick , I can see tha sda is reconized as new
> deive
> > > from dmesg.
> > >
> > > I trying to mount , "mount -t vfat /dev/sda1 /mnt" , I can see error
> > > message ... no special file /dev/sda1...
> > >
> > >
> > > why I don't have /dev/sda1 ... on /dev directory?
> > >
> > >
> > > udev have problem?
> > >
> > >
> > Is there any /dev/sd* ?
>
>
>

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>> I think ... my udev didn't work for usb stick...
>
> Yes, there is something missing in you udev rules...

Sometimes I have to restart udev to get it to create devices. I don't
think it's a problem with the udev configuration. But something else
like usb-storage not running when udev initially starts. So it doesn't
get updated when you load usb-storage after boot. Until you restart it.

# /etc/init.d/udev restart

Although I don't have that issue on most of my machines. Mainly with the
one running an old version of debian as installed from the cdimages
only. And never updated over the net. 3.0r3-ish (woody?)

And a similar issue with an older knoppix where udev ran too early at
boot. When you disabled autofs, it caused issues with udev's start
sequence. I just renamed the /etc/rc?.d/ entry for udev from something
like S03 to S63. Kind of vague on the details, as it was quite a while
ago. Making that sequence change fixed the issue(s) caused by disabling
autofs from the boot sequence. The issue being that I had to restart
udev after boot to get some important devices created. Until I changed
it to start later on in the boot sequence.

I got a 128mb (for $2!) usb flash drive that boasted it worked with
Windows, Mac and Linux, and it appears as /dev/sda1 with vfat
pre-formatted. My PSP's SanDisk, 2gig., also is a sda1.

OP: If you're using udev, I don't know. But if not, you can use mknod:

mknod -m 644 /dev/sda b 8 0
mknod -m 644 /dev/sda1 b 8 1
mknod -m 644 /dev/sda2 b 8 2
chgrp disk /dev/sda*

devices.txt in the linux/Documentation directory tells you what to make
and where.

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