Thread: How to upgrade the internal memory by extending the root filesystem to a memory card
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richie is offline richie
2006-04-21 , 18:55
Posts: 286 | Thanked: 259 times | Joined on Jan 2006 @ Cambridge, England
#118
Originally Posted by Amper_CZ
Somebody ask same question but there is not answer. Do anybody know answer why is JFFS is not recomended. I was found somewhere that internal flash storage use JFFS, so it seems logical to me (I understand that JFFS partition is not accessible wia USB from Windows box)
I'm not an expert on this, but I think it is because memory cards have a wear levelling controller built in, whereas the internal memory does not have this built in and needs JFFS to do wear levelling. JFFS on a memory card is bad, because JFFS journalling adds to the number of write/erase cycles, which on a memory card would reduce its life. Therefore I think it is recommended internal memory use JFFS2 and for memory cards ext2.

Rich