Same for me. I had to add the 'all_generic_dma=1' parameter to be able
to install 8.04 from the livecd.
In my case, it's with an ASUS DVD reader:
Model=ASUS DVD-ROM DVD-E616P 0104, FwRev=E1.04 , SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=13395, BuffSize=64kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 *udma4
AdvancedPM=no
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5
I've attached hdparm, dmesg and lspci output
** Attachment added: "all_generic_ide.log"
http://launchpadlibrarian.net/15126369/all_generic_ide.log
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DVD writer not working since hardy upgrade
https://bugs.launchpad.net/bugs/228624
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