Bug 48973 - need ide=nodma to get cdrom to work
Summary: need ide=nodma to get cdrom to work
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 7.1
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2001-07-12 19:06 UTC by sjarrettsprague
Modified: 2008-05-01 15:38 UTC (History)
0 users

Clone Of:
Last Closed: 2001-07-13 07:29:56 UTC

Attachments (Terms of Use)

Description sjarrettsprague 2001-07-12 19:06:53 UTC
From Bugzilla Helper:
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Description of problem:
need to use ide=nodma for my RICOH CD-R/RW MP7083A

How reproducible:

Steps to Reproduce:
1. load cdrom in to install rh 7.1
2. dies

Actual Results:  tries to boot of CDrom when I tried to install RH 7.1, but

Expected Results:  install from cdrom perfectly

Additional info:

I have had to put a line in my own init script to say

#disable DMA for CD-ROM
/sbin/hdparm -d0 /dev/hdc

otherwise I wouldn't have been able to use cdrom post install

Comment 1 Arjan van de Ven 2001-07-12 21:19:02 UTC
"RICOH CD-R/RW MP7083A" is the string from
cat /proc/ide/hdX/model ? if so I'll add it to the "dont do dma" list

thanks for the report.

Comment 2 sjarrettsprague 2001-07-13 07:29:52 UTC
Yes. RICOH CD-R/RW MP7083A is in /proc/ide/hdc/model. Look forward to RH7.2 
being easier to install!

Comment 3 Arjan van de Ven 2001-07-18 08:22:59 UTC
Thanks for the info, added to the no-dma list for the next build.

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