By the way - Just to add.. I'm using the Sept 2010 release of Barebox. 2010.09.
On Wed, Sep 29, 2010 at 3:33 PM, Gaurav Singh <gausinghnsit@xxxxxxxxx> wrote:
> Just a question regarding the host generated environement file.
>
> In common/environment.c - the host specific envfs_save function is setting
>
> size = (unsigned long)data.writep;
>
> Now there is no way of ensuring that the size is padded to Page size.
> The script bareboxenv seems not to use the pad parameter to change the
> size parameter of the ENVFS superblock.
> Now I know that we can't issue read commands which are not multiples
> of Page size. But this is exactly what we are doing in envfs_load:
>
> size = ENVFS_32(super.size);
> buf = xmalloc(size);
> buf_free = buf;
> ret = read(envfd, buf, size);
>
> I think this explains why my read is failing !
>
> Regards
> Gaurav
>
>
>
>
>
>
> On Wed, Sep 29, 2010 at 2:53 PM, Juergen Beisert <jbe@xxxxxxxxxxxxxx> wrote:
>> Juergen Beisert wrote:
>>> Just a note:
>>>
>>> You configure:
>>> > >> devfs_add_partition("nand0", 0x00000, 0x200000, PARTITION_FIXED,
>>> > >> "self_raw"); dev_add_bb_dev("self_raw", "self0");
>>> > >> devfs_add_partition("nand0", 0x200000, 0x200000, PARTITION_FIXED,
>>> > >> "env_raw"); dev_add_bb_dev("env_raw", "env0");
>>>
>>> And then:
>>> > EVB2065> addpart /dev/nand0 4M(barebox)ro,2M(kernel)ro,-(root)
>>>
>>> Both must match!
>>>
>>> Try instead:
>>>
>>> EVB2065> addpart /dev/nand0 256k(barebox)ro,256k(env),2M(kernel)ro,-(root)
>>>
>>> jbe
>>
>> Ups, sorry: 0x200000 != 256k (didn't count the '0' right...)
>>
>> EVB2065> addpart /dev/nand0 2M(barebox)ro,2M(env),2M(kernel)ro,-(root)
>>
>> jbe
>>
>> --
>> Pengutronix e.K. | Juergen Beisert |
>> Linux Solutions for Science and Industry | Phone: +49-8766-939 228 |
>> Vertretung Sued/Muenchen, Germany | Fax: +49-5121-206917-5555 |
>> Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de/ |
>>
>
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