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[nakato]

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[nakato]

sbc.version == 0.2

sbc.version 0.2 has been added to the flake.
This switches the defaults to using BTRFS with sub-volumes for the disk format, which is the target state for the repository.
First boot may take a bit more time as files are moved in a CoW friendly way into the subvols on first boot,

BTRFS compression is enabled, if space is important run a defragment manually to compress files created during image creation. Reduction when I tested it was ~600MB on the bootstrap image.

[nakato]

There is a bug in u-boot with BTRFS that can result in boot getting caught in a boot-loop. To prevent this or get out of this situation, build the latest uboot for your board and write it to the appropriate partition.

If you use ext4 for boot, then this can be ignored.

See the boards sd-image file for details on individual board boot-loader layouts.
BPiR3 example:

nix build '.#ubootBananaPiR3'
dd if=result/bl2.img of=/dev/xxx1
dd if=result/fip.bin of=/dev/xxx4

Updated uboot's have only been tested on the BPiR3.

[nakato]

sbc.version == 0.3

sbc.version 0.3 has been added to support the enabling of the binaryCache.

As this is new, 0.3 has been created as to not surprise anyone by opting them in where it previously did not exist.

If you are migrating from 0.2 and wish to keep the binaryCache disabled, set the following options before setting sbc.version to "0.3".

config.sbc.binaryCache.enable = false;