Re: usb device file [solved]
On Mon, 20 Oct 2008 10:43:37 -0800
Christopher Howard <choward@indicium.us> wrote:
> Christopher Howard wrote:
> > Amit Uttamchandani wrote:
> >>> However, there is no sde block file available in /dev. The closest
> >>> things are sda, sdb, sdc, and sdd. I try mount using these device
> >>> files, but the message I always get is 'mount: No medium found'.
> >>>
> >>> Udev is what creates the device file, right? Why isn't it creating
> >>> an sde or sde1 device file for me? I spent a lot of time googling
> >>> about this, but all the tutorials I found on mounting assume that
> >>> /dev/sde already exists.
> >>>
> >>> I get basically the same results when I try a different usb stick.
> >>>
> >>>
> >>
> >> Try this..
> >>
> >> do an ls on /dev and output it to a file. Plug in your usb and wait a
> >> few seconds. Do another ls and output it to a different file. Do a diff
> >> and see what dev creates. If it creates /dev/sda then I guess that's
> >> the one you should use.
> >>
> >> $ ls /dev > /tmp/usb1.txt
> >> $ ls /dev > /tmp/usb2.txt
> >> $ diff /tmp/usb1.txt /tmp/usb2.txt
> >>
> >> On mine, /dev/sda gets created.
> >>
> >> Good luck.
> >>
> >> Amit
> >>
> >>
> >>
> > Thank you for the help.
> >
> > The diff command did not return output, confirming my suspicion that
> > udev is not creating anything.
> >
> > The syslog, dmesg, and the lights on the usb sticks all indicate that
> > the system is recognizing the device when I plug it in. I wonder why
> > udev is not creating a device file for me that works. I've looked at
> > the udev config files but they are rather complex and I'm not sure how
> > to configure them manually.
> >
> >
> > ---
> >
> > Christopher Howard
> > choward@indicium.us
> > http://www.indicium.us
> >
> >
> I fiqured out what was wrong. Apparently, udevd wasn't running! Maybe
> I killed it somehow when I was doing all my testing (?) Anyway, I
> started udevd and the /dev/sde1 file pops up just as it should.
>
> I did a reboot and udevd starts fine -- so maybe I accidentally killed
> it when I was configuring or installing programs.
>
Congrats! That's great to know!
Amit
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