Fixed the problem: mounted the error throwing image, deleted
everything, untarred a backup :-)
Gonzalo
On Sat, Apr 11, 2009 at 6:13 PM, Gonzalo A. de la Vega
<> wrote:
> OK Gary, I tried this and mostly works... I just get messages from the
> kernel looking like this:
> jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00283c24:
> 0x81ed instead
>
> The message repeats for the second number (0x00283c24) incremented by
> 4 each time. If I have a look at the JFFS2 image with hexdump, I see
> 0x1985 every 40 bytes so suspect there is an offset I have to provide
> to mkfs.jffs2 and I'm missing.
>
> I can work in the FS if mounted from and NFS but can't boot directly
> into it (I guess because the kernel receives the mount error).
>
> Any help will be appreciated,
>
> Gonzalo
>
> On Fri, Apr 10, 2009 at 12:15 PM, Gonzalo A. de la Vega
> <> wrote:
>> Lets move to JFFS2 then! Thanks Gary!
>>
>> On Fri, Apr 10, 2009 at 11:48 AM, Gary Wicker <> wrote:
>>>
>>>
>>> Hi Gonzalo,
>>>
>>> I switched from YAFFS to JFFS2 on my TS-7250 projects (2.4 kernel)
>>> because I had problems with YAFFS. The worst was that it would mark
>>> blocks as bad for no reason and there seems to be no way to unmark
>>> them. After having a couple of my TS-7250 boards become useless
>>> because of too many bad blocks, I gave up and switched to JFFS2. Note
>>> that the stock 2.4 kernel from Technologic didn't fully support JFFS2
>>> at that time (not sure if it does now plus they've since moved to 2.6)
>>> so I had to backport some JFFS2 stuff from another kernel branch I
>>> picked up somewhere else. In any case I've been using JFFS2 since
>>> without incident or problems. Hope this info helps.
>>>
>>> Gary Wicker
>>> qhorus.com
>>>
>>> On Fri, Apr 10, 2009 at 6:39 AM, Gonzalo A. de la Vega
>>> <> wrote:
>>>> Has anybody tried this? I'm thinking about using JFFS2 mainly because:
>>>> 1) According to what I read on the YAFFS [1] site JFFS2 is more efficient
>>>> in small partitions. I'm essentially not writing to the flash so the YAFFS
>>>> garbage collection advantage is of no use.
>>>> 2) Mainstream kernel 2.6 comes with JFFS2 support.
>>>> 3) I'm gessing 2.4 and 2.6 can read the same JFFS2 partition (as one would
>>>> normally expect) contrary to what happens with YAFFS... but this is just a
>>>> guess... or a hunch if you will.
>>>>
>>>> Gonzalo
>>>>
>>>> [1] C. F. Johnson, Comparison between YAFFS (YAFFS2) and JFFS2,
>>>> http://www.yaffs.net/comparison-yaffs-vs-jffs
>>>>
>>>>
>>>>
>>>> ------------------------------------
>>>>
>>>> Yahoo! Groups Links
>>>>
>>>>
>>>>
>>>>
>>>
>>
>
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