Hello, Stijn Segers <[email protected]> ezt írta (időpont: 2020. ápr. 20., H, 9:25): > > Hi Szabolcs, > > Op zondag 19 april 2020 om 20u49 schreef Szabolcs Hubai > <[email protected]>: > > This device has trouble extracting big kernel from flash, > > and supports LZMA compressed kernels only. > > > > Using OpenWrt kernel loader saves us 64 KB compared to the dictionary > > size limiting workaround. > > > > Factory image sizes (commit: 5f126c541a74) with "CONFIG_ALL_KMODS=y": > > - original ("-d23", default): 4784188 bytes, LZMA ERROR 1 > > - with "-d19": 4915260, LZMA ERROR 1 > > - with "-d18": 4915260, diff to original: +128 KB > > - with "-d17": 4980796, diff to original: +192 KB > > - with this patch: 4849724, diff to original: +64 KB > > > > To save some CPU cycle, use minimal compression ("-a0") for the LZMA > > compressed uImage. > > > > The most robust solution would use a different loader, > > which reads the compressed kernel directly from the flash. > > See the thread at [0] for more details! > > Thanks for giving the DIR-860L some love. I'd like to test (in fact I > already > did with your previous patches) and hook up serial, because first boot > will > work but any reboot (whether I change settings or not) will just give > me a > blinking orange LED. Like clockwork. > > Would you happen to have any pointers (or pictures) on how to open the > case? > I have unscrewed the bottom but there seem to be latches on the inside > (judging > from the FCC pictures) and I am unable to pry it open. > > Thanks and sorry for the topic hijack :-). > > Stijn >
I got my clue from the "D-LINK DIR-860L - disassemble" titled YouTube video. [0] In short: - 3 screws on the bottom, under the pads: if you are looking at the bottom of the router, the screws are under the left, the right and the bottom pads - one, "DIR-860L" titled sticker on the top, with a "cut in" starting point in the front, where the leds reside - 3 screws on the top, under the sticker Disassemble: - get off the pads (they won't stick back after a few days ;), use very thin double sided sticker to help them) - get the bottom screws - peel off the rounded sticker from the top with thin but flexible knife or razor blade, etc ... - get the upper screws - slide the front and rear half vertically a little - separate them The serial settings can be found on the wiki [1]: - Pinout: TX, GND, 3v3, empty, RX - Bits per second: 57600 - Data bits: 8 - Parity: None - Stop bits: 1 - Flow control: None I have a CP2102 USB to TTL module, and used with "minicom -D /dev/ttyUSB0". Intereestingly, when I connected with serial to the router it was sometime unstable: * refuse to start * freeze at boot soon after: "Error applying setting, reverse things back" messge Other than this, I have no problem with k5.4. [0]: https://youtu.be/tf7nMqdUKD4 [1]: https://openwrt.org/toh/d-link/dir-860l#access_with_serial_cable -- Regards, Szabolcs > > > > > [0] > > http://lists.infradead.org/pipermail/openwrt-devel/2020-April/022926.html > > > > Signed-off-by: Szabolcs Hubai <[email protected]> > > --- > > target/linux/ramips/image/mt7621.mk | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/target/linux/ramips/image/mt7621.mk > > b/target/linux/ramips/image/mt7621.mk > > index aa6836d50a..e954f730da 100644 > > --- a/target/linux/ramips/image/mt7621.mk > > +++ b/target/linux/ramips/image/mt7621.mk > > @@ -218,7 +218,9 @@ define Device/dlink_dir-860l-b1 > > $(Device/seama) > > BLOCKSIZE := 64k > > SEAMA_SIGNATURE := wrgac13_dlink.2013gui_dir860lb > > - KERNEL := kernel-bin | append-dtb | relocate-kernel | lzma | > > uImage lzma > > + LOADER_TYPE := bin > > + KERNEL := kernel-bin | append-dtb | lzma | loader-kernel | \ > > + relocate-kernel | lzma -a0 | uImage lzma > > IMAGE_SIZE := 16064k > > DEVICE_VENDOR := D-Link > > DEVICE_MODEL := DIR-860L > > -- > > 2.17.1 > > > > > > _______________________________________________ > > openwrt-devel mailing list > > [email protected] > > https://lists.openwrt.org/mailman/listinfo/openwrt-devel > > _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
