[mythtv-users] Raspberry Pi
Piotr Oniszczuk
piotr.oniszczuk at gmail.com
Sat Oct 29 13:47:14 UTC 2022
> Wiadomość napisana przez James Linder <jam at tigger.ws> w dniu 29.10.2022, o godz. 05:28:
>
> I’m top posting because little bits of below are relevant, but just reading it is meaningless gunk :-)
> This is very technical for ‘users list’ but does relate directly …
>
> Poitr can you guide me please:
> I look at rockpi debian image that does boot
>
> [haycorn] /Users/jam [532]% od -A x -x boot.sector
> 0000000 0000 0000 0000 0000 0000 0000 0000 0000
> *
> 00001c0 0002 ffee ffff 0001 0000 682e 0059 0000
> 00001d0 0000 0000 0000 0000 0000 0000 0000 0000
> *
> 00001f0 0000 0000 0000 0000 0000 0000 0000 aa55
>
> 0000200 E F I sp P A R T nul nul soh nul \ nul nul nul
> 0000210 + � D � nul nul nul nul soh nul nul nul nul nul nul nul
>
>
> There are no vectors and partition table seems to start in second sector
>
> I now compare that to yours
>
> [haycorn] /Users/jam [539]% od -A x -x boot.sector.MM
> 0000000 b8fa 1000 d08e 00bc b8b0 0000 d88e c08e
> 0000010 befb 7c00 00bf b906 0200 a4f3 21ea 0006
> 0000020 be00 07be 0438 0b75 c683 8110 fefe 7507
> 0000030 ebf3 b416 b002 bb01 7c00 80b2 748a 8b01
> 0000040 024c 13cd 00ea 007c eb00 00fe 0000 0000
> 0000050 0000 0000 0000 0000 0000 0000 0000 0000
> *
> 00001b0 0000 0000 0000 0000 1a6a 346d 0000 0080
> 00001c0 0041 030c ffe0 8000 0000 3332 0005 0300
> 00001d0 ffe0 0383 ffe0 b800 0005 4434 002d 0000
> 00001e0 0000 0000 0000 0000 0000 0000 0000 0000
> 00001f0 0000 0000 0000 0000 0000 0000 0000 aa55
> 0000200 0000 0000 0000 0000 0000 0000 0000 0000
> *
> 0001000
>
> where there are lots of vectors and no partition table at 0x100
>
> you said
>
>> btw: Last resort action (but very effective) is copy boot sector’s from working linux distro SD card to minimyth2 SD card - so i think we for sure can move forward with this….
>
> Could you please say more so a bear of little brain (Winnie the Pooh) can understand
>
> Thanks
> James
James,
Per info you provided in ticket - I see you are using RockPi 4A.
Image I’m building is for RockPi 4B and for sure it will not work on Your board without change device tree(*) file
Now DT is for RockPi 4B while Your board requires DT for RockPi 4A.
I described how to do this here: https://github.com/warpme/minimyth2/wiki/Running-on-ARM-boards-or-TVboxes#quick-start-guide <https://github.com/warpme/minimyth2/wiki/Running-on-ARM-boards-or-TVboxes#quick-start-guide>
So pls copy+rename boot/dtbs/rockchip/rk3399-rock-pi-4a.dtb file to /boot partition named as rk3399_dtb
Let make now how it goes.
(in case any future problems - pls try https://github.com/warpme/minimyth2/wiki/Running-on-ARM-boards-or-TVboxes#in-case-of-any-problems <https://github.com/warpme/minimyth2/wiki/Running-on-ARM-boards-or-TVboxes#in-case-of-any-problems>
(*) device tree is file describing your hardware as is critical for Linux kernel to properly recognise/serve to your hardware
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