Re: Partial success and strange partial failure -was [Re: Physically have install DVD set. Want ISO's from which they came.]

[David <bouncingcats@gmail.com>]

On 2 March 2014 07:38, Richard Owlett <rowlett@cloud85.net> wrote:
>
> Created myiso1.iso from Wheezy(7.1) DVD 1 of 10 using dd and then used dd to
> copy it to a USB flash drive.
>
> I was able to boot from the flash drive and do several installs (different
> DE's).
>
> *HOWEVER* I can *NOT* mount the flash drive to view files. Tried file
> managers that are automatically installed with Wheezy Gnome, Lxde, and Xfce.
> Also tried Gnome under Squeeze. WinXP reports drive not formatted. Gparted
> under Squeeze reports it as unknown format but will mount it as /dev/usb0
> and file list displayable.

Here is an example of how to mount it. It does not use the exact image
file that you have, it is a smaller one (a live CD) copied to a USB
flash drive using the same method.

Each # character in the example represents your shell root prompt, so
your must type in what follows it on that line only.

The lines underneath each of those are the output I get here, as an
example of what to expect.

1) become root.

2) run the blkid command

  # blkid
  [...other stuff snipped...]
  /dev/sdb1: LABEL="DEBIAN_LIVE" UUID="F57A-6F6C" TYPE="vfat"

3) create a mountpoint directory

  # mkdir /tmp/my_test

4) mount using the device and type reported by your blkid output above

  # mount -v -t vfat /dev/sdb1 /tmp/my_test
  /dev/sdb1 on /tmp/my_test type vfat (rw)

5) access the contents

  # ls -l /tmp/my_test
  total 34,304
  -r--r--r-- 1 david david 32,256 2014-01-11 09:31 ldlinux.sys
  drwx------ 2 david david  1,024 2014-01-11 20:31 live
  drwx------ 2 david david  1,024 2014-01-11 20:31 syslinux

6) when finished, un-mount (the command is spelled umount)

  # umount -v /tmp/my_test
  /dev/sdb1 has been unmounted

I wrote the example like this because I do not know the filesystem
type of your DVD image file. In the old CD days they were all
"iso9660" filesystems, which is why we now sometimes see the sloppy
terminology referring to image files as "iso" files even if they actually
hold other filesystems. In the example above, the filesystem type is
"vfat". It is good practice to always specify the type to the mount
command using its -t option, even if mount can sometimes guess it.