retry mounting with ro when rw fails

[Andriy Gapon]

on 08/04/2011 15:36 Andrew Duane said the following:
> What I was hoping to do was design a better mechanism for passing that R/O
> detection from the device to the filesystem code. Our implementation uses a
> platform sysctl that checks the incoming device name against some hardware or
> software settings. Ick. I don't know enough about device/GEOM calls to do it
> better though.

I am actually not aware of any way to inquiry write-protection status from
hardware.  There are distinct SCSI sense codes for that, but you get them only
after a failed write attempt.

But there are many things that I don't know about...

-- 
Andriy Gapon