ArchR Linux 2.1.1

Maintenance release. It is delivered as a new image because the 2.1
updater could not reach the package repository on its own (it looked
for a channel tag that does not exist and started from an empty package
database), so 2.1 users need to flash this once. From 2.1.1 on, updates
arrive normally through EmulationStation > Updates, kernel included.

Fixed

• System updater: 2.1 reported "no updates available" even when
  updates existed. The channel is now validated (unknown values fall
  back to stable) and the package database is seeded on the first
  check, so the updater works.
• Update no longer breaks input and WiFi: installing the kernel
  through the updater used to overwrite the module index with a version
  that predated the out-of-tree drivers, so after a reboot the gamepad
  and USB WiFi dongles stopped working while their files were still
  present. The module index is now rebuilt over the full driver set
  after every update, and the packages no longer carry the stale index.
• Updater plumbing now ships through updates too: the update
  scripts and hooks themselves were image-only and could never be
  updated in place; they are now part of the package set.

Added

• WiFi 6 dongles: the MediaTek MT7921U driver is enabled, and the
  Realtek RTL8852BU and RTL8852CU drivers are bundled, on top of the
  existing coverage.

Everything from 2.1

DDR at 666MHz, power LED control on every board, the RTL8188EUS dongle
fix, the R36S Clone speaker fix, Soysauce input and PMIC-interrupt
fixes, power-button light sleep, and kernel/device-tree delivery through
the updater. See the 2.1 notes for the full list.

Checksums

035b58c446e0ffc7f6e23d1c8ef574fd0970307af6c3a41817abe82239aaf577  ArchR-R36S.aarch64-20260709-original.img.gz
3ea0b970595e0086bd7478e0d17acf71adf1368499b45f1bba21ef6ab63660e2  ArchR-R36S.aarch64-20260709-clone.img.gz

Always verify the checksum after downloading and before flashing.