[SOLVED] hdparm -s1: how to make drive work after BIOS & kernel failure to support it

10110111 · 09-30-2008, 08:27 AM

I set my IDE drive to start in standby mode. When i restarted, BIOS was able to identify the drive (it showed its model), but after that it hung. When i start with the drive powered down (mechanically off), and go to grub menu, then power it up, linux starts but doesn't find the drive. How can i make it work without searching for a machine which supports such a feature? Maybe some way to force it spin-up?..

P.S. yes, i know this was on my own risk, i just made an experiment

add: my kernel version: 2.6.22.5

10110111 · 09-30-2008, 09:03 AM

I found how to do this. The solution:
https://sourceforge.net/project/show...roup_id=136732

I disabled the ide channel in BIOS setup to force BIOS not to probe it.
Then i started from the floppy in the link above and this disabled start-up standby.

Now, does anybody know what should i enable in the kernel to be able to handle such issues without such floppy?

10110111 · 09-30-2008, 09:24 AM

OK. Now i solved all my questions about this. All we have to do in such a situation (if the disk in question is not boot disk) is to just issue hdparm -s0 with that disk and it will automatically spin up. (libata driver is ok for this)