[TriLUG] Flash Friendly Filesystems: was e2fsck under cron gets retcode=8 operational error

[Joseph S. Tate]

On Fri, Sep 21, 2012 at 3:34 PM, Joseph Mack NA3T <jmack at wm7d.net> wrote:
> they == thumb drive?

Yes

>
>
> the abstraction layer is on the flash drive (sort of like a hard disk
> controller)?

Precisely, yes.  It has a controller with a firmware.

> so you don't (or shouldn't or can't?) use jffs2 on a thumbdrive, but you do
> need it for flash being used as memory in (say) a wap?

Not necessarily.  I would assume that you could bypass the firmware
and use it in raw mode with a command to the flash drive, but I
haven't tried to do that.  I'm not sure how prevalent raw mode is in
thumb drives.  CF, SD, and the other removable flash storage I think
can be easily used in raw mode because embedded devices using CF and
SD media use these file systems.

You can use UBIFS and others with FTL (Flash Translation Layer), but
you may lose some of the benefits.

-- 
Joseph Tate
Personal e-mail: jtate AT dragonstrider DOT com
Web: http://www.dragonstrider.com