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Exotic Nix Targets

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12 Jul 2023
@leons:is.currently.onlineLeonI want some machine which has supervisor mode for some PoC development. I doesn't need to be fast, but I don't have that right now given I usually only work on embedded OSes for Cortex-M/RV32IMC MCUs.18:16:12
@thefossguy:matrix.orgPratham Patel
In reply to @thefossguy:matrix.org
Me neither but I would prefer it over the HiFive Pro...
The Horse Creek SoC's 4 cores can push only so much... Especially when building GCC woof!
18:16:18
@leons:is.currently.onlineLeonSo thinking this could be dual-use :)18:16:23
@misuzu:matrix.orgmisuzu
In reply to @thefossguy:matrix.org
not in SPI mode (with the firmware flashed using nix run github:misuzu/nixos-vf2#flash-visionfive2-vendor /dev/ttyUSB0)

You probably have changed some settings is u-boot. To reset u-boot settings to default values you can use these commands:

env default -a
saveenv
18:36:30
@thefossguy:matrix.orgPratham Patel
In reply to @misuzu:matrix.org

You probably have changed some settings is u-boot. To reset u-boot settings to default values you can use these commands:

env default -a
saveenv
I didn’t modify your uboot settings. I flashed the image and flashed the firmware using aforementioned method.   
18:37:47
@misuzu:matrix.orgmisuzu
In reply to @thefossguy:matrix.org
I didn’t modify your uboot settings. I flashed the image and flashed the firmware using aforementioned method.   
It's not enough to flash u-boot to reset u-boot settings
18:38:44
@thefossguy:matrix.orgPratham Patel Oh you mean the settings stored by the vendor’s firmware? 18:39:23
@thefossguy:matrix.orgPratham Patel It’s possible that i messed with the vendors firmware and that’s acting up right now lol 18:39:49
@thefossguy:matrix.orgPratham Patel I’ll take a look tomorrow morning    18:40:05
@misuzu:matrix.orgmisuzuRedacted or Malformed Event18:40:10
@thefossguy:matrix.orgPratham Patel Good night for now :) 18:40:14
@alex:tunstall.xyzAlex

misuzu is nixos-cross-image-efi supposed to require RISC-V emulation to build?

alex@alex-pc3 ~/r/A/n/master (master)> nix build .#nixos-cross-image-efi --print-build-logs
error: a 'riscv64-linux' with features {} is required to build '/nix/store/03w7yyb2cqw3blz9biawkypig49lx2fc-bootstrap-tools.drv', but I am a 
'x86_64-linux' with features {benchmark, big-parallel, kvm, nixos-test}
18:53:39
@alex:tunstall.xyzAlex
In reply to @alex:tunstall.xyz

misuzu is nixos-cross-image-efi supposed to require RISC-V emulation to build?

alex@alex-pc3 ~/r/A/n/master (master)> nix build .#nixos-cross-image-efi --print-build-logs
error: a 'riscv64-linux' with features {} is required to build '/nix/store/03w7yyb2cqw3blz9biawkypig49lx2fc-bootstrap-tools.drv', but I am a 
'x86_64-linux' with features {benchmark, big-parallel, kvm, nixos-test}

Nevermind, this is the consequence of my own changes.

Now to figure out why.

18:55:32
@misuzu:matrix.orgmisuzu
In reply to @alex:tunstall.xyz

misuzu is nixos-cross-image-efi supposed to require RISC-V emulation to build?

alex@alex-pc3 ~/r/A/n/master (master)> nix build .#nixos-cross-image-efi --print-build-logs
error: a 'riscv64-linux' with features {} is required to build '/nix/store/03w7yyb2cqw3blz9biawkypig49lx2fc-bootstrap-tools.drv', but I am a 
'x86_64-linux' with features {benchmark, big-parallel, kvm, nixos-test}
Nope, just regular x86_64-linux machine
19:28:28
@misuzu:matrix.orgmisuzu
In reply to @thefossguy:matrix.org
I noticed that the image (https://github.com/misuzu/nixos-vf2) didn't boot with all combinations of DIP switches so me being extra smart, I dd-ed uboot SPL and SBI firmware on /dev/sda1 and /dev/sda2 respectively and mvoed /boot to /dev/sda3 and / to /dev/sda4. Now, your derivation doesn't work because it expects "/dev/sda1" to be EFI?
https://github.com/misuzu/nixos-vf2/tree/master#u-boot-on-an-sd-card follow this if you want u-boot on an sdcard
19:29:40
@alex:tunstall.xyzAlex
In reply to @misuzu:matrix.org
https://github.com/misuzu/nixos-vf2/tree/master#u-boot-on-an-sd-card follow this if you want u-boot on an sdcard
Oh neat, that means I can cancel building my dodgy attempt at tweaking your make-efi-image script.
19:30:52
@misuzu:matrix.orgmisuzu
In reply to @alex:tunstall.xyz
Oh neat, that means I can cancel building my dodgy attempt at tweaking your make-efi-image script.
Try it on spare sdcard first, maybe I've written something wrong 🤡
19:34:08
@misuzu:matrix.orgmisuzuThe image uses labels to mount partitions, so partition numbers shouldn't matter19:36:37
@alex:tunstall.xyzAlex
In reply to @misuzu:matrix.org
The image uses labels to mount partitions, so partition numbers shouldn't matter
Doesn't that mean I could shrink my root partition a bit and put u-boot at the end of the disk?
19:37:29
@misuzu:matrix.orgmisuzu
In reply to @alex:tunstall.xyz
Doesn't that mean I could shrink my root partition a bit and put u-boot at the end of the disk?
Root partition - no, efi partition - maybe
19:38:15
@raitobezarius:matrix.orgraitobezarius
In reply to @0x4a6f:matrix.org
Not enough funds, maybe NixOS foundation could chim in. Maybe raitobezarius has some better understanding of this platform.
I'd wait
23:39:14
@raitobezarius:matrix.orgraitobezariusAs said in another channel23:39:24
@raitobezarius:matrix.orgraitobezariusThe speed of innovation in RISC V is sufficiently fast that by the time you get your MilkV, you may have to wait ~6-8 mo before you get the next generation which will probably much better at that moment23:40:07
13 Jul 2023
@thefossguy:matrix.orgPratham Patel
In reply to @misuzu:matrix.org
It's not enough to flash u-boot to reset u-boot settings
Okay yeah, that worked. I thought reflashing the firmware would do the trick but now that I think of it, it only makes sense to keep the data separate :D
04:04:03
@thefossguy:matrix.orgPratham Patel
In reply to @alex:tunstall.xyz
Doesn't that mean I could shrink my root partition a bit and put u-boot at the end of the disk?
If you mean the SPL or the flat binary, then no.
04:05:45
@thefossguy:matrix.orgPratham Patel
In reply to @alex:tunstall.xyz

I'm currently compiling with a few patches applied to try to fix the compilation problems without disabling DRM, since I'd really like to get working HDMI on my VF2.

I'll share the configuration if I'm able to get it working. Given the similarities between the two SBCs (and their respective Linux fork), it might work for the Star64 too.

The serial console stops displaying messages after these:

EFI stub: Booting Linux Kernel...
EFI stub: Loaded initrd from command line option
EFI stub: Using DTB from configuration table
EFI stub: Exiting boot services...
clk u2_dw_i2c_clk_core already disabled
clk u2_dw_i2c_clk_apb already disabled
clk u5_dw_i2c_clk_core already disabled
clk u5_dw_i2c_clk_apb already disabled

the kernel doesn't even start...

04:22:48
@artemis:arty.chatartemistrofi: i still get the libtool error after cleaning the nix store as discussed and starting over with sandbox-fallback=false from the start08:55:46
@trofi:matrix.orgtrofi Just to clarify: you do use sandbox = true, right? 08:56:21
@artemis:arty.chatartemisonly if that is default08:56:36
@artemis:arty.chatartemisthis is my entire nix.conf http://dpaste.com/5KQ988BL508:56:57

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