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And then there is this: Journalling Flash File System v2 (JFFS2) support (JFFS2_FS) JFFS2 is the second generation of the Journalling Flash File System for use on diskless embedded devices. ...
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  1. #11
    Linux Guru Rubberman's Avatar
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    And then there is this:
    Journalling Flash File System v2 (JFFS2) support (JFFS2_FS)

    JFFS2 is the second generation of the Journalling Flash File System
    for use on diskless embedded devices. It provides improved wear
    levelling, compression and support for hard links. You cannot use
    this on normal block devices, only on 'MTD' devices.

    Further information on the design and implementation of JFFS2 is
    available at <http://sources.redhat.com/jffs2/>.
    The URL at the end may be useful to check out for more information.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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    Quote Originally Posted by Rubberman View Post
    Here is another entry that mentions a needed option for JFFS2 devices:

    I'll keep looking...
    Thank you for the information, where are you getting the above quotes from?

  3. #13
    Linux Guru Rubberman's Avatar
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    Quote Originally Posted by AJEllisuk View Post
    Thank you for the information, where are you getting the above quotes from?
    On my workstation where I do the cross-compile build of my ARM kernels I run "make xconfig" rather than "make config". That brings up a nice X-Windows GUI with search capabilities. I just did a search for jffs or jffs2 and then clicked on the entries. The text is from the description panel displayed. Very nice and illustrative - much more informative than the text UI provided by "make config"...
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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    Quote Originally Posted by Rubberman View Post
    Here is another entry that mentions a needed option for JFFS2 devices:

    I'll keep looking...
    I have fitted smaller flash chips to my board, and my system runs mostly fine now. I suspect the version of MTD I was using didn't like the 64MB flash I was using. I can't prove this however.

    Andrew

  5. #15
    Linux Guru Rubberman's Avatar
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    Quote Originally Posted by AJEllisuk View Post
    I have fitted smaller flash chips to my board, and my system runs mostly fine now. I suspect the version of MTD I was using didn't like the 64MB flash I was using. I can't prove this however.

    Andrew
    That seems likely. I know that sd flash controllers are different for handling different size-range devices. Since I haven't worked on boards at the level you are doing I am just making an "educated" guess (swag). Anyway, glad you got something working.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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