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d4mo
Guru
Joined: 27 Jun 2005
Posts: 430
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 Posted: Sat Jul 09, 2005 4:57 pm Post subject: HDD DMA |
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When I try to enable DMA for my HDD I get this error
| Code: | /dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off) |
Now I can't remember right, but the IDE cable that I have connected to my HDD doesn't have a Blue end on it. Does that restrict DMA or does that just restrict the ATA/100 and higer? |
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eslo
n00b
Joined: 29 Jan 2004
Posts: 20
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| Posted: Sat Jul 09, 2005 5:13 pm Post subject: Re: HDD DMA |
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| d4mo wrote: |
| Code: | /dev/hda:
HDIO_SET_DMA failed: Operation not permitted |
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Do you have support for your chipset in the kernel. This is a typical errormessage in "hdparm" if your kernel is compiled with the wrong chipset...
Espen |
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d4mo
Guru
Joined: 27 Jun 2005
Posts: 430
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| Posted: Sat Jul 09, 2005 5:53 pm Post subject: |
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| I have a VIA chipset. What would I need to enable to get the DMA to work? |
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hw-tph
l33t
Joined: 08 Jan 2004
Posts: 768
Location: Uppsala, Sweden
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| Posted: Sat Jul 09, 2005 8:36 pm Post subject: |
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You need to enable VIA82CXXX chipset support in ATA/ATAPI/MFM/RLL support.
Håkan |
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d4mo
Guru
Joined: 27 Jun 2005
Posts: 430
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| Posted: Sat Jul 09, 2005 9:52 pm Post subject: |
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| I did and it still doesn't work. Are you sure I don't need a blue IDE cable? |
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hw-tph
l33t
Joined: 08 Jan 2004
Posts: 768
Location: Uppsala, Sweden
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| Posted: Sat Jul 09, 2005 11:07 pm Post subject: |
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I do not think the colour is of any significance. However, you do need an 80 thread cable (as opposed to an older 40 thread IDE cable).
Håkan |
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d4mo
Guru
Joined: 27 Jun 2005
Posts: 430
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| Posted: Sun Jul 10, 2005 5:46 am Post subject: |
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| Ok I'm guessing that's my problem then. I'll try to find another cable and try it again. |
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