Mount -o loop filename /mnt

[Joel Goguen]

On Mon, 2008-11-24 at 08:37 -0700, Karl Larsen wrote:
> Joel Goguen wrote:
> > On Mon, 2008-11-24 at 05:34 -0700, Karl Larsen wrote:
> >   
> >> Joel Goguen wrote:
> >>     
> >>> On Sun, 2008-11-23 at 18:32 -0700, Karl Larsen wrote:
> >>>   
> >>>       
> >>>> Joel Goguen wrote:
> >>>>     
> >>>>         
> >>>>> On Sun, 2008-11-23 at 17:58 -0700, Karl Larsen wrote:
> >>>>>   
> >>>>>       
> >>>>>           
> >>>>>>     What I want to do is change the ownership to me and make all the 
> >>>>>> files rwx for my purposes. But the read only has it all locked up. How 
> >>>>>> do you turn that off? Even root cannot :-)
> >>>>>>     
> >>>>>>         
> >>>>>>             
> >>>>> AFAIK, ISO files are read-only file systems.  You would need to copy all
> >>>>> the files off the ISO, modify what you want, then re-create the ISO
> >>>>> image.  Look at 'man genisoimage' for details on doing that.
> >>>>>
> >>>>>   
> >>>>>       
> >>>>>           
> >>>>     Thank you and genisoimage is a HUGE software. It will take a few 
> >>>> hours to learn what it can do. It looks like it can add some files to a 
> >>>> .iso file. That is what I am trying to do. I tried mkisofs -r -o but it 
> >>>> didn't work at all.
> >>>>
> >>>> Karl
> >>>>
> >>>>     
> >>>>         
> >>> For what you seem to need to do with it, it's actually quite simple.
> >>> Put all the files you want on the ISO image into a single folder, then
> >>> run 'genisoimage -o myimage.iso /path/to/folder/' and you'll have
> >>> 'myimage.iso' that contains all the files in the folder.  Now, how to
> >>> change the ISO9660 conformance level to not truncate filenames and such
> >>> is up to you to find in the man page...which is actually quite easy to
> >>> find :)
> >>>
> >>>   
> >>>       
> >>     Really what is going on is I have a cd-rom of WindowsXP Professional 
> >> with SP2 and I want to put it on my cheap laptop from Compaq which came 
> >> with Windows Vista which is Windows Melinium in character. It is so 
> >> terrible I deleted it.
> >>
> >>     Well now HP has told me the SATA hard drive has been giggered so you 
> >> can't load anything but Vista. I told them I loaded Ubuntu Intrepid with 
> >> no problems at all from the SATA hard drive.
> >>
> >>     Then they let me d/l some strange software from the HP web page and 
> >> I need to "remaster" the WinXP cd-rom with these drivers within. So I 
> >> got the .iso easy with the gui Copy a disk. You then tell it to copy to 
> >> a file and it does a fine job.
> >>
> >>     The mount -o loop was found on Google and it works of course. But it 
> >> has a problem(s) that prompted my message. The first is you can't add 
> >> any files to the .iso because it complains. I can't find any way to make 
> >> it a bit bigger. I think the added drivers are about 150 mb.
> >>
> >>     What you say about getting the format right for the new cd-rom is a 
> >> problem I do not know a thing about.
> >>
> >> Karl
> >>
> >>
> >>     
> > I don't know what ISO level Windows XP CD uses, but try level 4 to
> > start.  All you need to do is:
> >
> > - Copy all files from the WinXP ISO to a folder on your computer
> > - Add the files you need to this folder
> > - Run genisoimage to create the new ISO image
> > - Burn the new ISO to disc
> >
> >   
>     I did make a cd-rom and it fails to boot. It looks perfect on Linux 
> but it ain't good for windows. I did not use anything like a 4 and have 
> no idea what that is.
> 
> I used the simplest method on the man page and that it appears is too 
> simple. Another drink coaster :-)
> 
>     Please send the whole context of a call so my pee brain can do it.
> 
> 
> Karl
> 
> 
It seems that the Windows XP CD doesn't come with an obvious boot image.
The simplest method in the man page wouldn't have used it anyway though,
you need to tell genisoimage to make a bootable image.

Here's step-by-step directions I put together based on this Google
search.

http://www.google.ca/search?q=genisoimage+make+bootable+WinXP+ISO


First, here is how to extract the boot image you'll need to pass to
genisoimage:

- Run 'isoinfo -d -i /path/to/win_xp.iso'.  This will output some
information, you want to look for the line beginning with 'Bootoff'.
Write down the second number from that line.

- Extract the boot image: dd if=/path/to/win_xp.iso of=boot.img bs=2048
count=1 skip=<number from previous step>

This gives you boot.img, which you pass to genisoimage to create an El
Torito bootable image.  This command should give you a good image:

genisoimage -b /path/to/boot/img -no-emul-boot -c boot.cat
-max-iso9660-filenames -relaxed-filenames /path/to/win_xp/folder/

-- 
Joel Goguen
Bug-free code is a myth.
Registered Linux User #391952
Registered Ubuntu User #15951
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