It is currently Thu Apr 17, 2014 1:41 am

All times are UTC - 8 hours




Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 4 posts ] 
Author Message
 Post subject: igz extension and compression
PostPosted: Sun Aug 17, 2008 2:18 pm 
Offline

Joined: Sat Jun 23, 2007 1:56 pm
Posts: 13
Hello,

Does anybody know if the extension of the compressed
files are necessary for trouble-free or better work of
UBCD (4.xx/5.xx)?

I recognized that I can use uncompressed images too...
Code:
APPEND initrd=/usr_img/fdos14.img

Pperhaps the ubcd doesn't like uncompressed images
and tries first to uncompress... ? And it would be recommendable
only to use gziped "%disk%.igz" files with the "igz" extension?
Can I use "%disk%.img.gz" as well? What prefer you?

Thomas


Top
 Profile  
 
 Post subject: Re: igz extension and compression
PostPosted: Sun Aug 17, 2008 4:35 pm 
Offline

Joined: Tue Jun 17, 2008 3:14 am
Posts: 276
Thomas wrote:
Does anybody know if the extension of the compressed
files are necessary for trouble-free or better work of
UBCD (4.xx/5.xx)?

It's a non-issue as far as i'm aware of.

Thomas wrote:
I recognized that I can use uncompressed images too...

You can, yes.

Thomas wrote:
Pperhaps the ubcd doesn't like uncompressed images
and tries first to uncompress... ?

It works using either method.

Thomas wrote:
And it would be recommendable only to use gziped "%disk%.igz" files with the "igz" extension...

Why?

Thomas wrote:
Can I use "%disk%.img.gz" as well?

You could. The thing to bare in mind is that isolinux only accepts 8.3 file names. If you suffix the images as you propose, you're severely limited by the number of characters left available to you to name the file with.


Top
 Profile  
 
 Post subject: Re: igz extension and compression
PostPosted: Sun Aug 17, 2008 7:24 pm 
Offline

Joined: Sat Jun 23, 2007 1:56 pm
Posts: 13
Thomas wrote:
I recognized that I can use uncompressed images too...

as702 wrote:
You can, yes..

Thats's good. It saves some seconds ;-)

Thomas wrote:
Pperhaps the ubcd doesn't like uncompressed images
and tries first to uncompress... ?
And it would be recommendable only to use gziped "%disk%.igz" files with the "igz" extension...

as702 wrote:
Why?


I mean, _if_ UBCD tries first to uncompress and perhaps wait for a timout
and then UBCD loads the file as a "normal" img file. In this case it might
be better to use compressed files by default... anyway...

as702 wrote:
You could. The thing to bare in mind is that isolinux only accepts 8.3 file names. [...]


Good to know, but I still have an other question which belongs
to the *.img, *.gz or *.igz files

Does anybody know a program which is able to build 1.44/2.88 MB
*.img files from a subdirectory and from the command-prompt to
use it in a batch-file? I can't use WinImage or theese kind
of BUI-based programs and WinImage can't build from the command-prompt.

Of course it has command-line options, but I have to answer
the upcoming MessageBoxes and its not easy to handle boot disks
with WinImage...

Perhaps similar to dd, but not from a device. I need to build this
*.img files from a subdirectory.
Or does anybody know how can I realize this with dd?

Thomas


Top
 Profile  
 
 Post subject:
PostPosted: Sun Aug 17, 2008 9:54 pm 
Offline

Joined: Fri Jan 11, 2008 2:52 pm
Posts: 1278
ImDisk Virtual Disk Driver

ImDisk is a virtual disk driver for Windows NT/2000/XP/2003. It can use one or more disk image files to create virtual hard disk, floppy or CD/DVD drives.
http://www.ltr-data.se/opencode.html#ImDisk

Virtual Floppy Drive 2.1

This is a virtual floppy drive for Windows NT / 2000 / XP
(Reported to work also on 2003 Server and Vista).

You can mount a floppy image file as a virtual floppy drive and directly access the contents -- view, edit, rename, delete or create files on a virtual floppy, format a virtual floppy, launch a program on a virtual floppy... almost anything you can do with a real floppy.
http://chitchat.at.infoseek.co.jp/vmware/vfd.html

You can download bootable images from: http://bootcd.narod.ru/images.htm.

Load them with ImDisk Virtual Disk Driver or Virtual Floppy Drive, now you can copy files to it (station letter gets added in explorer, so you can use a batch file).


Top
 Profile  
 
Display posts from previous:  Sort by  
Forum locked This topic is locked, you cannot edit posts or make further replies.  [ 4 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Protected by Anti-Spam ACP Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group