Brian,
I could have told you you were right a long time ago. I used to backup
at night using a script what would smbmount a M$ box drive to dump my backup
nightly until CDs were burned at the end of the week. One night following a
thunder storm, smbmount failed and the quick script wasn't checking for a
successful mount (i.e. no if (smbmount etc...) then...) so I ended filling
up the /mnt/tripod directory on my server with about 600 megs of stuff from
/home that I thought had been sent to the M$ box via /mnt/tripod. Talk about
confusing. mount /mnt/tripod then ls /mnt/tripod returned the same thing as
umount /mnt/tripod and ls /mnt/tripod. It took a few posts, but some soul
was kind enough to finally figure out "hey idiot, your smbmount failed and
you filled up /mnt/tripod with what you thought was going to your M$ drive".
So a quick umount /mnt/tripos then rm -f /mnt/tripod followed by a fresh
smbmount /mnt/tripod was all it took.
In short, just a long way of saying you got it right!
--
David C. Rankin, J.D., P.E.
RANKIN * BERTIN, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
(936) 715-9333
(936) 715-9339 fax
--
----- Original Message -----
From: "Bryan Phinney" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, October 23, 2003 9:01 PM
Subject: Re: [expert] Increading /mnt/cdrom size?
> On Thursday 23 October 2003 05:20 pm, deedee wrote:
> > On Thu, 23 Oct 2003 17:53:26 -0400, Bryan Phinney wrote:
> > > Actually, he is quite correct. /mnt/cdrom is a directory located off
> > > of /mnt which in turn is located off of /.
> >
> > I believe you are confusing how a directory tree is set up to interface
> > with you as a user in order to help you find your files with the actual
> > devices where files are being stored.
>
> No, I am clearly stating that the directory that is used as a mount point
for
> the cdrom device is an actual directory and can exist independent of the
> device that is associated to it by the mount command up until the mount
> command redirects the mount point to point to the device file instead of a
> directory on the file system. If you simply go out and look at it
yourself,
> you will see that until the mount command is issued for a cdrom, there is
> clearly a directory present on the root drive in the /mnt folder that you
can
> access with absolutely no disc mounted in the cdrom drive. For that
matter,
> I can simply enough create a directory directly under root called cdrom
and
> alter the fstab with a simply edit and any cdroms mounted on the drive
will
> then be mounted in the directory cdrom off of the root drive.
>
> I accept that after I mount the drive, I am no longer hitting the
directory in
> the filesystem when I access the cdrom, but up until I mount the media, I
am.
>
> > Check your /etc/fstab. That defines your file system table and says
> > where the directories in your directory tree are really located.
>
> Actually, no. fstab merely designates the device file and mount point for
> devices when the mount command is issued. Much like a mapped network
drive
> in NFS, the actual directory that is used for the mount point actually
exists
> prior to remapping the location to point to the network resource and does
not
> actually point to the device until the mount command points the directory
to
> the device.
>
> > > Experiment: As root, with no cd mounted, cp a file to /mnt/cdrom and
> > > you will note that the file is copied and then exists in /mnt/cdrom.
> >
> > It actually exists in memory.
>
> [EMAIL PROTECTED] mnt]# ls -l
> total 9
> drwxr-xr-x 2 root root 48 Oct 23 17:49 cdrom/
> drwxrwxrwx 1 root root 0 Oct 22 19:13 floppy/
> dr-x------ 1 root root 8192 Oct 20 18:31 winxp/
>
> Doesn't look like memory to me....
>
> > I don't want to get into a fruitless debate about this. I know it is a
> > difficult concept. I'm only responding because I believe you are asking
> > for problems if you treat all the places on the directory
> > tree/interface as if they are actually all places on your hard drive.
>
> Neither do I. Why don't we agree to accept an answer from a disinterested
> third party.
>
> "Linux does not have different letters for the drives. Linux integrates
> floppy, hard disk, CD-ROM ... (the common name for all of them is
"devices")
> into the directory tree. You simply "plug" the device in a subdirectory.
The
> default directory for mounting removable media devices is /mnt/. There you
> create the subdirectories for all devices (e.g. /mnt/zip for the
zip-drive),
> /mnt/windows/ for the WINDOWS partition. For the CD-ROM the directory
/cdrom
> is as common as /mnt/cdrom/. Any needed directories can be created with
> "mkdir".
> To access the CD-ROM drive you have to register it in the system. This
happens
> with the command mount...."
>
> You can access the entire page at:
> http://www.linuxnetmag.com/en/issue3/m3mount1.html
>
> The blurb clearly states that mounting a device "simply 'plug'[s] the
device
> in a subdirectory" that is either already created or is created when you
> issue the mount command. Either way, once the device is unmounted, the
> directory remains, in the file system, not in memory.
>
> I am not trying to be argumentative, but I also wouldn't want someone
getting
> incorrect information either.
> --
> Bryan Phinney
> Software Test Engineer
>
>
>
----------------------------------------------------------------------------
----
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>
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