[Clfs-support] Limited recognition of DVD-ROM device

[Alonso Graterol]

Hello,

   I built CLFS-SVN-2070923 Pure64 using LiveCD-x86-6.3-r2052 as host back
in September.
   I just realized that my DVD device is being recognized and handled in
such a way that I cannot update the DMA mode of it using hdparm. It is an
IDE/ATAPI device (/dev/hdb).
   When trying the hdparm command I get the following,

"root at familia# hdparm -d1 /dev/hdb

/dev/hdb:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma     =  0 (off)"

   If I try the same command after booting from the LiveCD, I can change the
DMA mode without any error or warning.
   I have no clue how to resolve this. I followed the book instructions when
I built the system.
   Any advice is appreciated
   Thanks,

Alonso
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