I have been asking around about my laptop, which can write cdroms but
can't mount them unless I boot with the (deprecated) kernel option:
hdc=ide-scsi
I'm trying to connect the dots between my trouble and the one that Mr
Cox mentions below. Are they the same?
My problem is described here:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=137831
The short and sweet is that CDs fail to mount and the message (over and
over again) is:
kernel: hdc: irq timeout: status=0xd0 { Busy }
kernel: hdc: irq timeout: error=0xd0LastFailedSense 0x0d
kernel: hdc: DMA disabled
kernel: hdc: ATAPI reset complete
cdroms will not mount at all. If I do use the ide-scsi option, they will
mount, but the message log has a deprecation warning in it and I'm
advised to use ide-cd instead. But that doesn't work. And I've read
people saying that cd writing is bad with ide-scsi.
What is a person supposed to do?
Replace hardware?
My CD-DVD+RW device is found at startup as
hdc: _NEC DVD+RW ND-5100A, ATAPI CD/DVD-ROM drive
pj
Alan Cox wrote:
On Tue, Nov 09, 2004 at 08:23:54AM +0000, Michael A. Peters wrote:
yet fixed and its not trivial to fix or it would have been fixed by
now
Say - is this why md5sum /dev/cdrom doesn't work anymore?
Correct.
I use to be able to verify that a CD burned correctly by running md5sum
on the cdrom device and comparing that with the md5sum of the iso image
- but that hasn't worked for me for awhile (I/O error I believe)
2.4.x works 2.6.x doesnt. Upgrade to the ide-scsi driver and it will work
as will eject.
--
Paul E. Johnson email: pauljohn@xxxxxx
Dept. of Political Science http://lark.cc.ku.edu/~pauljohn
1541 Lilac Lane, Rm 504
University of Kansas Office: (785) 864-9086
Lawrence, Kansas 66044-3177 FAX: (785) 864-5700