Re: Atapi CDROM, SATA OS drive, and 2.6.14+ kernel

From: andy liebman
Date: Wed Jan 04 2006 - 16:42:46 EST


rdunlap@xxxxxxxxxxxx wrote:
On Wed, 4 Jan 2006 andyliebman@xxxxxxx wrote:

Can somebody tell me what changed in the 2.6.14 kernel that doesn't
allow me to access my CDROM drive when my OS drive is SATA?

I have an image of a working 2.6.14 system that was installed on an IDE
drive. I restored the image to a SATA drive, changed a few lines in
/etc/fstab and /etc/lilo.conf so that they refer to /dev/sd* devices
instead of /dev/hd* devices.

I also modified /etc/modprobe.conf so that it is identical to the file
that Mandriva 2006 produces when installed directly to a SATA drive
(but Mandriva 2006 has the 2.6.12.x kernel).

I can't mount my CDROM when running 2.6.14.x

I have googled this for several days. I have seen posts about passing
options to the kernel and including extra lines in modprobe.conf like:

libata atapi_enabled=1

should be:
libata.atapi_enabled=1
if libata is built into the kernel image.

Well, I added that to my modprobe.conf file, remade the initrd. But then on rebooting I got a kernel panic -- VFS not able to sync root filesystem.

Any other ideas?


Can't find the magic formula. Help would be appreciated.


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