lkml.org 
[lkml]   [2001]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Mounting a in-ROM filesystem efficiently
Date
----- Original Message ----- 
From: "Richard B. Johnson" <root@chaos.analogic.com>
To: "Bradley D. LaRonde" <brad@ltc.com>
Cc: "Thomas Capricelli" <orzel@kde.org>; <linux-kernel@vger.kernel.org>
Sent: Thursday, December 13, 2001 1:02 PM
Subject: Re: Mounting a in-ROM filesystem efficiently

> Generally, ROM based stuff is compressed before being written to
> NVRAM. It's uncompressed into a RAM-Disk and the RAM-Disk is mounted.
>
> That way, you can use, say, 2 megabytes of NVRAM to get a 10 to 20
> megabyte root file-system. This also allows /tmp and /var/log to be
> writable, which is a great help because the development environment
> closely approximates the run-time environment.

That's perfect if you have plenty of RAM to spare.

> FYI, generally NVRAM access is sooooo slow. I don't think you'd
> like to use it directly as a file-system and access-time will be
> a problem unless you modify the kernel.

Modify the kernel how?

Regards,
Brad

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:14    [from the cache]
©2003-2011 Jasper Spaans. Advertise on this site