Entire file system goes read-only

[edwardp-mh2Nk+tgbQM at public.gmane.org]

Edward Ned Harvey wrote:
>> From: discuss-bounces-mNDKBlG2WHs at public.gmane.org [mailto:discuss-bounces-mNDKBlG2WHs at public.gmane.org] On
>> Behalf Of edwardp-mh2Nk+tgbQM at public.gmane.org
>>
>> Charles Bennett wrote:
>>      
>>> Time to load smartmontools and scan the disks?
>>>        
>> I did that.  Why it also wanted to install postfix, I have no idea...
>> But smartmontools did not find any issues with the hard drive.
>>      
> Firmware updates?
>    

I checked HP's web site (for Compaq), nothing.  Not even a BIOS update 
is available for this model.  It hasn't flipped to read-only since 
enabling 32-bit I/O in the BIOS.