DietPi v1.8.0-rc5 - Reliable boot, opt-in overclock

DietPi image built from SmartPi-armbian v1.8.0-rc5, Debian 13 (trixie) server base.

Replaces v1.8.0-rc4, whose base images can hang during the first boot.

Fixed

Reliable boot

The base image carries the kernel clock fix that could hang the board during startup, and the 1368 MHz overclock is no longer force-enabled — it is now an explicit opt-in through sudo smartpi-oc on. The Yumi logo is built into U-Boot and appears centered the instant the board powers on, with the DietPi first-boot console displaying normally underneath.

Works on 4K UHD screens

The display output is fixed to 1280x720 at 60 Hz (inherited from the base image): every screen from the SmartPad panel to a 4K UHD monitor accepts and upscales it, so the console is visible everywhere. Remove video=HDMI-A-1:1280x720@60 from /boot/armbianEnv.txt to negotiate the native resolution instead.

WiFi tools preinstalled

wpasupplicant, iw and wireless-regdb are kept in the image, so a USB WiFi adapter can be configured directly from dietpi-config without an Internet connection.

Notes

• First boot: log in as root (password yumi) on HDMI or SSH; the DietPi setup runs automatically. A pi user account (password yumi) is created as well.
• SSH over USB: plug a single cable into the OTG port; the board is reachable at 172.22.1.1 (set 172.22.1.2/24 on the computer side). Works on Linux, Windows 11 and macOS (NCM gadget).
• Keyboard layout and timezone are no longer forced by the image preseed; DietPi asks or autodetects as usual.