Send me both images
On Nov 3, 2014 3:55 PM, "Robert P. J. Day" <[email protected]> wrote:

> On Mon, 3 Nov 2014, Robert P. J. Day wrote:
>
> >  apologies for being repetitive but i'm still trying to figure out how to
> > reflash my d-link dir-810L with an openwrt image, and i'm willing to buy
> > someone a virtual beer or 12 if they can give me the solution. (i'm well
> > aware that the wireless will almost certainly not be functional -- that's
> > ok, i just want to boot to openwrt, and i'll worry about the wireless
> > from there.)
> >
> >  as an initial test, i downloaded the latest *official* firmware image
> > from d-link, and that reflashed just fine, so i know reflashing is
> possible.
> > at that point, i grabbed the "dir-810l" image from here:
> >
> > http://downloads.openwrt.org/barrier_breaker/14.07/ramips/mt7620a/
> >
> > and tried the same thing, and i got an error dialog starting with:
> >
> > "The uploaded firmware file may not be correct ..."
> >
> > i suspect more than a few people have seen that dialog -- in the end,
> > no reflashing was done, so i'm assuming there's something in that
> > openwrt image that the d-link firmware doesn't like.
> >
> >  reading the openwrt dir-810L page here:
> >
> > http://wiki.openwrt.org/toh/d-link/dir-810l
> >
> > it would appear that my other option is to slap together a USB-TTL cable,
> > and upgrade using TFTP, is that the correct solution? has anyone done
> > this and can verify that the upgrade both *can't* be done through the
> GUI,
> > but *can* be done over the serial port via TFTP? i'd really like to
> > get an openwrt image onto this board ASAP.  thanks.
>
>   there is one other thing i can add in case someone sees an issue
> i'm missing. i'm trying to figure out what sort of test the d-link is
> running so that its own official firmware passes the test, but the
> openwrt bin image fails.
>
>   here's an examination of the official firmware:
>
> $ file D*bin
> DIR810LA1_FW102B22.bin: u-boot legacy uImage, Linux Kernel Image,
> Linux/MIPS, OS Kernel Image (lzma), 6057805 bytes, Mon Jul  7 06:15:05
> 2014, Load Address: 0x80000000, Entry Point: 0x8000C2D0, Header CRC:
> 0x8D5ABC60, Data CRC: 0x87ECB287
> $
>
>   so it's clearly a u-boot legacy image, there's an embedded
> description string, etc, etc and so on and so on.  and here's the same
> info for the openwrt image:
>
> $ file openwrt-ramips-mt7620a-dir-810l-squashfs-sysupgrade.bin
> openwrt-ramips-mt7620a-dir-810l-squashfs-sysupgrade.bin: u-boot legacy
> uImage, MIPS OpenWrt Linux-3.10.49, Linux/MIPS, OS Kernel Image
> (lzma), 1128601 bytes, Wed Oct  1 10:42:30 2014, Load Address:
> 0x80000000, Entry Point: 0x80000000, Header CRC: 0x912E84E5, Data CRC:
> 0x77AF9BF4
> $
>
>   again, a u-boot legacy image, different embedded string, but entry
> point same as load address, could that be something that the d-link
> router is testing? i'm just trying to figure out what about the
> openwrt image is unpalatable to the router. i'm more than happy to
> "hexdump" or "dd" to hack the openwrt image to make it acceptable, if
> someone knows what i should be hacking.
>
> rday
>
> --
>
> ========================================================================
> Robert P. J. Day                                 Ottawa, Ontario, CANADA
>                         http://crashcourse.ca
>
> Twitter:                                       http://twitter.com/rpjday
> LinkedIn:                               http://ca.linkedin.com/in/rpjday
> ========================================================================
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