topic Re: Read ISO CD images in Operating System - OpenVMS

Read ISO CD images

Wim Van den Wyngaert — Thu, 10 Feb 2005 06:17:27 GMT

I have downloaded iso cd images.

Is there a way to unpack them without using an empty disk ? On VMS of course ...

Wim

Re: Read ISO CD images

Ian Miller. — Thu, 10 Feb 2005 06:21:07 GMT

could you use them as a container file with a pseudo disk driver such as VDDRIVER OR LDDRIVER ?

Re: Read ISO CD images

Wim Van den Wyngaert — Thu, 10 Feb 2005 06:31:13 GMT

Ian,

Please some more details. How do you do that ?

Re: Read ISO CD images

Bojan Nemec — Thu, 10 Feb 2005 07:39:59 GMT

Wim,

On VMS >= 7.3-1 you can use the LDDRIVER mentioned by Ian.

First you need to setup the driver, run:
$ @SYS$STARTUP:LD$STARTUP

then you need the LD command. The CLD is embeded in SYS$MANAGER:CDRECORD.COM. You can extract it and do a SET COMMAND or simply run it:
$ @SYS$MANAGER:CDRECORD.COM VERIFY noexist

and give some nonsense ansawers (this is just to get the LD command!)

Now you have the LDA0 device and the LD command. You can do:

$ LD CONNECT isoimage LDA1:
$ MOUNT /OVER=ID LDA1:

Now you have mounted the CD file.

Bojan

Re: Read ISO CD images

Wim Van den Wyngaert — Thu, 10 Feb 2005 08:13:01 GMT

Sad sad sad I'm on 7.3

Thx anyway.

Wim

Re: Read ISO CD images

Bojan Nemec — Thu, 10 Feb 2005 08:21:32 GMT

Wim,

The driver LDDRIVER is also present on the freeware CD:

http://h71000.www7.hp.com/freeware/freeware50/ld063/

Bojan

Re: Read ISO CD images

Wim Van den Wyngaert — Thu, 10 Feb 2005 09:19:00 GMT

Bojan,

It works. Thx.

Wim

Re: Read ISO CD images

Ian Miller. — Thu, 10 Feb 2005 09:23:08 GMT

The LDdriver supplied with CDRECORD does work with AlphaVMS V7.3

or you can install it from the freeware site

Re: Read ISO CD images

Wim Van den Wyngaert — Thu, 10 Feb 2005 09:30:42 GMT

Btw : the command was added without doing an extra @.

Wim

Re: Read ISO CD images

Bojan Nemec — Thu, 10 Feb 2005 09:46:35 GMT

Wim,

Probably the command is added with the instalation from the freeware CD. In VMS 7.3-2 the SYS$LDDRIVER is installed with VMS (no need to install anything), but I could not find (realy I havnt put much effort in searching ;) the LD.CLD as a separate file - it is embeded in SYS$MANAGER:CDRECORD.COM.

Bojan

Re: Read ISO CD images

Uwe Zessin — Thu, 10 Feb 2005 12:22:13 GMT

Don't know where these images came from, but I wouldn't access them on "daddy's mission critical server". At least one version of Roxio's CD Creator was able to produce an "ISO" CD that crashed a particular OpenVMS version when a MOUNT was attempted there. (Just so that you don't get caught by surprise, OK?)