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Old 04-20-2004, 10:32 PM   #1
seow_ming
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Registered: Mar 2004
Location: Currently in China
Distribution: Fedora 9
Posts: 130

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Hi everyone, How to enable LINUX RH8's DMA?


Hi everyone,

Yup, thanks for clicking my tread, thanks for those who are trying to reply my thread.

Yup, im having problem with enable my harddisk DMA.

[1]
I used this command to check my hd status --> hdparm -c /dev/hdc

[2]
then i see my hd status as follow :

Quote:

/dev/hdc:
HDIO_GET_MULTCOUNT failed : Invalid argument
IO support ...... = 0 (default 16-bit)
unmaksing ...... = 0 (off)
using_dma ...... = 0 (off)
keepsettings ... = 0 (off)
readonly........... = 1
readahead........ = 8
HDIO_GETGEO failed: Invalid argument
[3]
so i tried:

"hdparm -d /dev/dhc"

to enable my dma, but no matter how many times i tried, the system is keep showing me below result

Quote:

/dev/hdc:
using_dma = 0 (off)
may i know how to solve this problem?

I'm now using company computer with the specs of:

- P4 2.4
- 512 MB RAM
- 1 NIC
- Windows XP

p/s: I'm using "vmware Virtual engine" Software in windows XP to enable
the installing and using of LINUX RH8 in winXP

Last edited by seow_ming; 04-20-2004 at 10:41 PM.
 
Old 04-20-2004, 10:39 PM   #2
heema
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Registered: Sep 2003
Location: Egypt
Distribution: Arch
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hdparm -d1 /dev/hda
 
Old 04-20-2004, 10:50 PM   #3
seow_ming
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Registered: Mar 2004
Location: Currently in China
Distribution: Fedora 9
Posts: 130

Original Poster
Rep: Reputation: 15
thanks heema,

i tried your sugesstion but it seems not work :
***********************************************************
hdparm -d1 /dev/hdc

***********************************************************

and below will be the result:

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


question 1)

May i know what is the different of below command?
-----------------------------------------------------------------
hdparm -d1 /dev/hdc with hdparm -d /dev/hdc
-----------------------------------------------------------------

Thanks for your help~!



Anix
 
Old 04-20-2004, 11:26 PM   #4
heema
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Registered: Sep 2003
Location: Egypt
Distribution: Arch
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no problem

have u tried it using ur root password ?
 
Old 04-21-2004, 10:41 PM   #5
seow_ming
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Registered: Mar 2004
Location: Currently in China
Distribution: Fedora 9
Posts: 130

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yup, i logged my linux startx by root, and click on the terminal and enter the command which you showed me above.
 
  


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