Re: Linux SATA S.M.A.R.T. and SLEEP?

[jmerkey <jmerkey@utah-nac.org>]

Bill Davidsen wrote:

> jmerkey wrote:
>
>>
>> Someone needs to fix SATA drive ordering in the kernel so it matches 
>> GRUBs ordering, or perhaps GRUB needs fixing. I have run into
>> several situation where hd0,hd1 are in reverse order from what is 
>> reported when the Intel PII drivers load from the kernel, making in
>> necessary to swap the two values in the grub config.
>
>
> There's more to it than that. With PATA drives I see issues with order 
> as well, and they date back to the Redhat 7.x days, where the install 
> chose one order for the scsi drivers and the boot chose another. With 
> IDE the order in which drivers are loaded affects the drive naming.
>
> It would be great to have some way to match drives with names, but 
> there doesn't seem to be a single solution for PATA, SATA, SCSI and 
> hotplug. Something like mounts using UUID of the filesystem, but for 
> the drives.
>
> I do use pluggable drives for backup, load modules for various 
> controllers on demand, etc, so I'm aware that the most reliable 
> solutions seem to involve either reduced flexibility, human 
> intervention at boot, or both.

Have the IDE and SATA driver layer check the BIOS ordering and preserve 
it during registration of the IDE and SATA devices for boot.

Jeff