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

[Joseph Mack NA3T]

On Fri, 21 Sep 2012, Kevin Otte wrote:

> The reason you use ext[234] on a thumb drive is because 
> they

they == thumb drive?

> have an abstraction layer between the computer and the 
> flash chip(s)

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

> that makes them appear as rotating media with cylinders, 
> heads, and sectors. This abstraction layer also performs 
> the function of write leveling on your behalf.
>
> The flash filesystems you speak of assume the kernel has 
> direct access to the actual flash chips and must therefore 
> do the leveling and error checking itself.

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?

Joe

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Joseph Mack NA3T EME(B,D), FM05lw North Carolina
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