LinuxQuestions.org
Visit Jeremy's Blog.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 08-31-2004, 06:10 AM   #1
linuxnubx
Member
 
Registered: Jul 2004
Posts: 92

Rep: Reputation: 15
hdparm -d1 /dev/hdc


So I try to turn on DMA for my cdrom, but it doesn't want to.

Code:
/dev/hdc:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)
 
Old 08-31-2004, 06:15 AM   #2
Baldrick65
Member
 
Registered: Aug 2003
Location: Dunedin NZ
Distribution: Mint 13 Cinnamon
Posts: 653

Rep: Reputation: 31
What's the output of
Code:
hdparm -i /dev/hdc
Baldrick
 
Old 08-31-2004, 06:34 AM   #3
linuxnubx
Member
 
Registered: Jul 2004
Posts: 92

Original Poster
Rep: Reputation: 15
Code:
 Model=DR-6800TE, FwRev=VER 0J5A, SerialNo=
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2
 AdvancedPM=no

 * signifies the current active mode
 
Old 08-31-2004, 06:44 AM   #4
Baldrick65
Member
 
Registered: Aug 2003
Location: Dunedin NZ
Distribution: Mint 13 Cinnamon
Posts: 653

Rep: Reputation: 31
Are you running hdparm as root? If I try to turn off dma as a normal user, I get
Code:
/dev/hdc:
 setting using_dma to 0 (off)
 HDIO_SET_DMA failed: Permission denied
 using_dma    =  1 (on)
[baldrick@localhost baldrick]$
However, if I try it as root, I get
Code:
[root@localhost baldrick]# /sbin/hdparm -d0 /dev/hdc

/dev/hdc:
 setting using_dma to 0 (off)
 using_dma    =  0 (off)
[root@localhost baldrick]#
Baldrick
 
Old 08-31-2004, 06:48 AM   #5
linuxnubx
Member
 
Registered: Jul 2004
Posts: 92

Original Poster
Rep: Reputation: 15
Nm. Got it. I just had to enable pci ide in my kernel... It acutally made my SLack a lot faster.
 
Old 08-31-2004, 06:50 AM   #6
Baldrick65
Member
 
Registered: Aug 2003
Location: Dunedin NZ
Distribution: Mint 13 Cinnamon
Posts: 653

Rep: Reputation: 31
Glad you got it sorted ...

Baldrick
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
mount /dev/hdc /dev/cdrom doesn't work ShrikesHarvest Linux - Newbie 10 02-21-2009 08:05 AM
I cannot access EITHER CD drive! And there's no /dev/hdc or /dev/hdd or /dev/cdrom! Dmalic Linux - Hardware 13 11-18-2005 08:11 PM
ln: creating symbolic link `/dev/dvd' to `/dev/hdc': Permission denied qazwsx27 Fedora 3 06-14-2005 03:09 PM
i have no /dev/hdc or /dev/hdd qwijibow Linux - General 3 07-18-2004 06:25 AM
/dev/cdrom & /dev/hdc missing! Lord_Devi Slackware 4 06-25-2004 10:17 AM


All times are GMT -5. The time now is 08:41 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration