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December 2011

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Subject:
Re: unable to cut a DVD from iso
From:
Todd And Margo Chester <[log in to unmask]>
Reply To:
Todd And Margo Chester <[log in to unmask]>
Date:
Tue, 6 Dec 2011 14:37:00 -0800
Content-Type:
text/plain
Parts/Attachments:
text/plain (99 lines) 
On 12/06/2011 02:09 PM, Andrew Z wrote:
>
> On Tue, Dec 6, 2011 at 4:13 PM, Todd And Margo Chester
> <[log in to unmask] <mailto:[log in to unmask]>> wrote:
>
>             On Tue, Dec 6, 2011 at 3:40 PM, Todd And Margo Chester
>             <[log in to unmask] <mailto:[log in to unmask]>
>             <mailto:[log in to unmask]
>             <mailto:[log in to unmask]>__>> wrote:
>
>                 Hi All,
>
>                 For some reason, I am unable to cut a DVD from an ISO.
>                 Specifically, I am trying to cut DVDs of the SL61 DVD.
>
>                 I get bad md5sums when using from both growisofs and k3b.
>
>                 Just for kicks, I tried to boot off of DVD#1 and my BIOS
>                 won't even recognize it as bootable.
>
>                 Would kvm have anything to do with this?
>
>
>
>     On 12/06/2011 12:54 PM, Andrew Z wrote:
>      > are you trying to burn a dvd from SL6.1 iso  or you are creating
>      > an iso ?
>
>
>     The iso's are already make.  Just trying to cut them.
>
>     growisofs -dvd-compat -Z /dev/sr0
>     ./SL-61-x86_64-2011-07-27-__Everything-DVD2.iso
>
>
> mind to post the exact log ?
>

I reburned the second iso.

* Ah! Caramba! *

Look at the md5sum of the contents of the DVD vs the ISO.
There is an iso inside an iso!  And the second one is
correct!   What the ...

[editorial comment] AAAAAHHHHH!!!! [/editorial comment]

-T

$ growisofs -dvd-compat -Z /dev/sr0 
./SL-61-x86_64-2011-07-27-Everything-DVD2.iso

Executing 'mkisofs ./SL-61-x86_64-2011-07-27-Everything-DVD2.iso | 
builtin_dd of=/dev/sr0 obs=32k seek=0'
I: -input-charset not specified, using utf-8 (detected in locale settings)
   0.86% done, estimate finish Tue Dec  6 14:21:22 2011
/dev/sr0: "Current Write Speed" is 20.5x1352KBps.
   1.72% done, estimate finish Tue Dec  6 14:36:52 2011
   2.58% done, estimate finish Tue Dec  6 14:32:21 2011
   3.44% done, estimate finish Tue Dec  6 14:30:05 2011
...
  97.05% done, estimate finish Tue Dec  6 14:23:08 2011
  97.91% done, estimate finish Tue Dec  6 14:23:08 2011
  98.76% done, estimate finish Tue Dec  6 14:23:07 2011
  99.62% done, estimate finish Tue Dec  6 14:23:07 2011
Total translation table size: 0
Total rockridge attributes bytes: 0
Total directory bytes: 0
Path table size(bytes): 10
Max brk space used 0
582195 extents written (1137 MB)
builtin_dd: 582208*2KB out @ average 8.1x1352KBps
/dev/sr0: flushing cache
/dev/sr0: closing track
/dev/sr0: closing disc



$ md5sum ./SL-61-x86_64-2011-07-27-Everything-DVD2.iso /dev/sr0
32cce790ae5eb3f435a7898431740544 
./SL-61-x86_64-2011-07-27-Everything-DVD2.iso
fa2ff0e5301e37618729a87b1edd2d23  /dev/sr0


#  mount /dev/sr0 /mnt/cd
mount: block device /dev/sr0 is write-protected, mounting read-only

# ls -al /mnt/cd
total 1164048
dr-xr-xr-x.  1 root root        2048 Dec  6 14:21 .
drwxrwsrwx. 11 tony users       4096 Nov 17 21:29 ..
-r-xr-xr-x.  1 root root  1191979008 Jul 27 20:42 sl_61_x8.iso

#  md5sum ./SL-61-x86_64-2011-07-27-Everything-DVD2.iso /mnt/cd/sl_61_x8.iso
32cce790ae5eb3f435a7898431740544 
./SL-61-x86_64-2011-07-27-Everything-DVD2.iso
32cce790ae5eb3f435a7898431740544  /mnt/cd/sl_61_x8.iso

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