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Re: Loopback Filesystem for Mounting ISO Images Equiv on HPUX?

 
Alzhy
Honored Contributor

Loopback Filesystem for Mounting ISO Images Equiv on HPUX?

Is there one? On Solaris/Linux, I can create ISO images of CD's and then mount them up:

# Create ISO Image
dd if=/dev/sr0 of=companion_cd.iso

# The I mount it:
lofiadm -a `pwd`/companion_cd.iso /dev/lofi/1
mount -t hsfs /dev/lofi/1 /mnt

This way, whenever Iget new ISO images of software, I do not have to burn them CD and mount them..

Hakuna Matata.
3 REPLIES 3
James A. Donovan
Honored Contributor

Re: Loopback Filesystem for Mounting ISO Images Equiv on HPUX?

HP-UX does indeed support loopack file systems. Take a look at the man page for details.

$ man mount_lofs

example:
mount -F lofs /some/dir/to/mount /tmp/mount

Remember, wherever you go, there you are...
Floyd Curtis
Frequent Advisor

Re: Loopback Filesystem for Mounting ISO Images Equiv on HPUX?

Not to interject too much for Nelson, but I believe he is wanting mount a raw iso cd image as though it were a filesystem. (The file that you could use to burn a CD using Disk at once writing - I think this is like a red book audio cd). The loopback "driver" mechanism is different from a loopback filesystem. It evidenly lets you mount this raw iso image, reads the directory structure and allows it to be mounted, even though it doesn't exist in that format.- its just a big binary file.

Loopback Filesystems - LOFS allows access to existing directories or file systems using alternate path names ( I got that from the man page).

fwc
Alzhy
Honored Contributor

Re: Loopback Filesystem for Mounting ISO Images Equiv on HPUX?

Thanks for the clarification Floyd.

The reason I am asking this question is that I wanted to make a virtual CD jukebox (VCDJ) served out on an HPUX boxen. Since disk storage is so cheap these days, am planning to create ISO images of all our CD's (iso9660,RR's, Joliet -- all UNIX/Windows data, apps cd's) so all are always available. Using a loopback mechanism to allow me tomount those ISO images and SAMBA (CIFS/9000 Server) and automounter, I should be able to create a jukebox server but the stumbling block I am facing is I don't know if there is such a loopback mechanism on HPUX.

I am able to do this on Linux and Solaris systems -- with the latter having somewhat a major problem of not totally supporting Joliet (Microsoft Long filenames..) standards.

Hakuna Matata.