[ydl-gen] [YDL5] Install DVD won't boot (bad media?) and related questions

[Derick Centeno]

Could it be that the install DVD you are complaining about is not a 
standard DVD but a HD-DVD or Blu-ray DVD?
IF so, then only the PS3 DVD system can read it!

Jon "NeoAmsterdam" Levy wrote:
> Hello!  I bought a print of YDL 5 as soon as it became available from  
> the store and it arrived a few hours ago.  When I opened up the DVD  
> case and took out the Install DVD, I noticed that the underside of  
> the medium was DVD-dye-blue.  It looked as if it had been burnt by  
> someone at home, and not the usual silver underside as if it had been  
> pressed at a printing facility.
>
> I didn't pay it much attention at the time - I was overcome with  
> enthusiasm as I held down the "C" key at startup.  But the install  
> DVD didn't boot.  In fact, when my PowerBook (15" G4 867MHz) finished  
> its startup routine(s), I didn't even see the YDL 5 DVD on the Desktop.
>
> I figured that the Mac OS didn't recognize the filesystem (which  
> would have explained why it didn't show up) and that it was possible  
> that I didn't press "C" soon enough.  So, I restarted and tried again  
> but only to result in the same.  I tried holding down the Option key  
> to see if my Mac was even recognizing that the DVD was in the drive,  
> but it did not show up in the list of discovered devices.  I was even  
> bold/crazy enough to drop into OpenFirmware and try `cd:,\\tbxi` -  
> Same result.
>
> I figured that maybe my internal combo drive was out of whack (it's  
> seen better days), and I'd try using an external DVD drive connected  
> on the FireWire port.  Maybe the PowerBook didn't like booting up  
> from an external device, but whatever the reason, that didn't work  
> either.  So I decided to try to boot my G5 Quad from the YDL 5 DVD  
> and install to the PowerBook while in target-disk mode.  Again, the  
> Quad dropped into Mac OS X and the DVD was nowhere on the Desktop.   
> Finally, hoping that my intuition was wrong, I tried to boot the Quad  
> from the DVD without any external devices present.
>
> If that had worked, I wouldn't be writing this email.
>
> I suspect that I have a bad print of the YDL 5 Install DVD (The  
> sources' DVD mounts properly, though).  I used `pdisk` on OS X to  
> determine the location of the Install DVD, and came across the  
> following:
>
> 	Top level command (? for help): L
> 	pdisk: can't open file '/dev/rdisk1'  (Permission denied)
> 	pdisk: can't open file '/dev/rdisk0'  (Permission denied)
> 	
> 	Partition map (with 512 byte blocks) on '/dev/rdisk2'
> 	#:                type name    length   base    ( size )
> 	1: Apple_partition_map Apple        2 @ 1
> 	2:           Apple_HFS PBOOT  7609424 @ 16      (  3.6G)
>
> 	Device block size=512, Number of Blocks=7609440 (3.6G)
> 	DeviceType=0x1, DeviceId=0x1
>
> With the disk number and slice number of YDL's installation  
> partition, I ran `md5 /dev/disk2s2` to verify the checksum.  It  
> returned an `input/output error`.  Even if it had worked, I cannot  
> locate YDL 5's ISO MD5 for Apple Macintosh (the Sony Playstation MD5  
> was easily found at the Argonne National Labs's Yellow Dog mirror).
>
> My intuition tells me that I probably have a bad media.  I hope not  
> because bought the DVD from the YDL store *specifically* because I  
> wanted to avoid having bad burns (I also wanted to go around the  
> office with that nice, big, "I'm on the cutting-edge and you have to  
> wait another two weeks to download the ISO from the mirrors you bunch  
> of freeloaders" smirk).  So, I have a few questions...
>
> (1) What is the MD5 correct for the "PBOOT" partition?
>
> (2) Could the short length of the Apple partition map affect booting  
> from the DVD?
>
> (3) Are the YDL 5 prints' undersides supposed to be blue?
>
> (4) Is it possible to launch the YDL 5 installer from within YDL 4?   
> (Note: I know the answer will most likely be that I have to boot with  
> YDL 5 to install it, but I'm asking anyway)
>
> (5) Did I just waste $49.95 (plus shipping) on a coaster?  (Note: If  
> so, it'll be used to "coast" my YDL coffee mug)  And...
>
> (6) How can I be absolutely sure that the media is bad, and what can  
> I do about getting a replacement?, and...
>
> Thanks in advance for any enlightenment that you can shed on this  
> situation.
> 	- NeoAmsterdam
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