Re: AMBER: read the data

From: David LeBard <>
Date: Fri, 16 Feb 2007 12:00:10 -0700

HI Esther,

After it is mounted, what do you see from "ls /mnt/external" ? Also, what
is the output of the "mount" command with no arguments (it will show all
mounted devices on your system). If you see that the drive is really
mounted, using root you may want to give reading permissions to all files in
that directory like: "chmod -R a+r /mnt/external". One more thing, if you
plan on using this drive frequently, you may want to add the following line
in your /etc/fstab:

/dev/sdb1 /mnt/external vfat
ro,auto,user 0 0

This will automount it, and give users mounting, but read-only access.

I would suggest that you give the output of all the failed commands to the
list if you are still having problems. This will give all us linux guru's a
little guidance when we try to suggest troubleshooting techniques.

Best of luck,

On 2/16/07, Esther Brugger <> wrote:
> Now, I successfully do this: mount /dev/sdb1 /mnt/external
> but I still cannot open the external drive, and is it possible to find
> this drive in the terminal?
> Thanks for your help!
> *David LeBard <>* wrote:
> Hi Ester,
> I found I had the same problem once, so I made sure to write down how I
> got things working. The problem may be that you dont have the proper kernel
> modules loaded to handle large disks, if so this will help.
> First, depending no how your system is setup, you may need to change to
> root before mounting:
> *Mount a really large usb disk drive* in linux:
> $> modprobe usb-ohci
> $> modprobe usb-storage
> $> mount /dev/sda1 /mount/point
> Also, I know that Fedora started using a somewhat strange naming
> convention in the /dev directory (at least I noticed with with FC6), so you
> may need to play around to see if sda1 is the one you will need.
> Best of luck,
> David LeBard
> Arizona State University
> On 2/15/07, Esther Brugger < > wrote:
> >
> > Dear all,
> >
> > I met a problem about the computer. I saved my previous AMBER results in
> > an external hard drive. Now I am using another PC to deal with the data in
> > the Fedora Core4 Linux system. But I found I couldn't mount this external
> > drive under this system. Is there somebody know how I can read these files??
> >
> > Thanks a lot for your any help!
> >
> >
> >
> > Esther B.
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Received on Sun Feb 18 2007 - 06:07:36 PST
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