Setting up linux-image-6.18.3-mnt-reform-arm64 (6.18.3-1+reform20251230T060313Z)…
/etc/kernel/postinst.d/dkms:
Automatic installation of modules for kernel 6.18.3-mnt-reform-arm64 was skipped since the kernel headers for this kernel do not seem to be installed.
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-6.18.3-mnt-reform-arm64
cryptsetup: WARNING: Couldn't determine cipher modules to load for root
Using DTB: rockchip/rk3588-mnt-reform2-dsi.dtb
Couldn't find DTB rk3588-mnt-reform2-dsi.dtb in /usr/lib/linux-image-6.18.3-mnt-reform-arm64 or /etc/flash-kernel/dtbs
Installing  into /boot/dtbs/6.18.3-mnt-reform-arm64/rockchip/rk3588-mnt-reform2-dsi.dtb
cp: cannot stat '': No such file or directory
run-parts: /etc/initramfs/post-update.d//flash-kernel exited with return code 1
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1