From owner-freebsd-mips@freebsd.org  Tue Oct 13 16:11:52 2015
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Date: Tue, 13 Oct 2015 09:11:51 -0700
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Subject: Re: mib0 flash partition TL-WDR3600
From: Adrian Chadd <adrian.chadd@gmail.com>
To: Eugene Grosbein <eugen@grosbein.net>
Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org>
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It doesn't; it dd's 64k chunks at a time and that causes an erase/write cycle.

If yo'ure just expanding cfg then yeah, cfg_save will do it via dd.


-a


On 13 October 2015 at 08:35, Eugene Grosbein <eugen@grosbein.net> wrote:
> On 13.10.2015 00:51, Adrian Chadd wrote:
>> Yes. The bootloader doesn't care what you do as long as:
>>
>> * you don't overwrite uboot;
>> * you don't ovewrite uboot-env if it exists;
>> * you put the "uboot application" (ie, the kernel) in the right place
>> (which on these devices is at the beginning of the usable flash area);
>> and
>> * don't ovewrite ART.
>>
>> Just make sure you erase the extra space before you write into it. :)
>
> I don't see how cfg_save erases flash before writing.
>