@IBV good call but it looks good to me lsinitramfs -l boot/initrd.img-6.1.115-vendor-rk35xx | grep crypt drwx------ 2 root root 0 Dec 22 11:35 cryptroot -rw------- 1 root root 69 Dec 22 11:35 cryptroot/crypttab -rwxr-xr-x 1 root root 246 May 4 2025 scripts/local-block/cryptroot -rwxr-xr-x 1 root root 253 May 4 2025 scripts/local-bottom/cryptgnupg-sc -rwxr-xr-x 1 root root 449 May 4 2025 scripts/local-bottom/cryptopensc -rwxr-xr-x 1 root root 1038 May 4 2025 scripts/local-bottom/cryptroot -rwxr-xr-x 1 root root 757 May 4 2025 scripts/local-top/cryptopensc -rwxr-xr-x 1 root root 8150 May 4 2025 scripts/local-top/cryptroot -rwxr-xr-x 1 root root 5686 May 4 2025 usr/bin/cryptroot-unlock lrwxrwxrwx 1 root root 17 Dec 22 11:35 usr/lib/aarch64-linux-gnu/libcrypt.so.1 -> libcrypt.so.1.1.0 -rw-r--r-- 1 root root 198664 Jan 16 2025 usr/lib/aarch64-linux-gnu/libcrypt.so.1.1.0 -rw-r--r-- 1 root root 6302952 Nov 1 12:22 usr/lib/aarch64-linux-gnu/libcrypto.so.3 lrwxrwxrwx 1 root root 24 Dec 22 11:35 usr/lib/aarch64-linux-gnu/libcryptsetup.so.12 -> libcryptsetup.so.12.10.0 -rw-r--r-- 1 root root 603376 May 4 2025 usr/lib/aarch64-linux-gnu/libcryptsetup.so.12.10.0 lrwxrwxrwx 1 root root 20 Dec 22 11:35 usr/lib/aarch64-linux-gnu/libtomcrypt.so.1 -> libtomcrypt.so.1.0.1 -rw-r--r-- 1 root root 919496 Nov 1 2024 usr/lib/aarch64-linux-gnu/libtomcrypt.so.1.0.1 drwx------ 2 root root 0 Dec 22 11:35 usr/lib/cryptsetup -rwxr-xr-x 1 root root 67912 May 4 2025 usr/lib/cryptsetup/askpass -rw-r--r-- 1 root root 26980 May 4 2025 usr/lib/cryptsetup/functions drwxr-xr-x 2 root root 0 Dec 22 11:35 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/arch/arm64/crypto -rw-r--r-- 1 root root 19928 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/arch/arm64/crypto/chacha-neon.ko -rw-r--r-- 1 root root 17128 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/arch/arm64/crypto/poly1305-neon.ko drwxr-xr-x 3 root root 0 Dec 22 11:35 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto drwxr-xr-x 2 root root 0 Dec 22 11:35 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/async_tx -rw-r--r-- 1 root root 8424 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/async_tx/async_memcpy.ko -rw-r--r-- 1 root root 16520 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/async_tx/async_pq.ko -rw-r--r-- 1 root root 8768 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/async_tx/async_raid6_recov.ko -rw-r--r-- 1 root root 11400 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/async_tx/async_tx.ko -rw-r--r-- 1 root root 14616 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/async_tx/async_xor.ko -rw-r--r-- 1 root root 15616 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/authenc.ko -rw-r--r-- 1 root root 16792 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/authencesn.ko -rw-r--r-- 1 root root 8592 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/echainiv.ko -rw-r--r-- 1 root root 20176 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/essiv.ko -rw-r--r-- 1 root root 9344 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/md4.ko -rw-r--r-- 1 root root 8352 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/michael_mic.ko -rw-r--r-- 1 root root 9352 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/crypto/seqiv.ko -rw-r--r-- 1 root root 84336 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/drivers/md/dm-crypt.ko drwxr-xr-x 2 root root 0 Dec 22 11:35 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/lib/crypto -rw-r--r-- 1 root root 5272 Nov 25 15:18 usr/lib/modules/6.1.115-vendor-rk35xx/kernel/lib/crypto/libchacha.ko -rwxr-xr-x 1 root root 288448 May 4 2025 usr/sbin/cryptsetup

did you check if this module is in the initramfs with lsinitramfs ? Just asking, I saw you looked for the libraries but not for the module.

Duplicate

Could anyone advise the simple example on how to play media files using hardware decoding on VPU? I use actual version of Armbian with Edge kernel user@h96-tvbox-3566:~$ uname -a Linux h96-tvbox-3566 6.18.0-rc7-edge-rockchip64 #1 SMP PREEMPT Sun Nov 23 22:53:16 UTC 2025 aarch64 aarch64 aarch64 GNU/Linux and seems that rkvdec is available user@h96-tvbox-3566:~$ v4l2-ctl --list-devices rockchip,rk3328-vpu-dec (platform:fdea0000.video-codec): /dev/video2 /dev/media1 rockchip,rk3568-vepu-enc (platform:fdee0000.video-codec): /dev/video3 /dev/media2 rockchip-rga (platform:rga): /dev/video1 rkvdec (platform:rkvdec): /dev/video0 /dev/media0 then I've installed MPV player from Armbian repository using apt command, but it seems that it doesn't support hardware decoding. I tried to use different hwdec options (rkvdec, rga, rkmpp, hantro....) but got "Unsupported hwdec" each time. user@h96-tvbox-3566:~$ mpv -hwdec=rkvdec --vo=gpu big_buck_bunny_1080p_h264.mov (+) Video --vid=1 (*) (h264 1920x1080 24.000fps) (+) Audio --aid=1 --alang=eng (*) (aac 6ch 48000Hz) Unsupported hwdec: rkvdec AO: [pulse] 48000Hz 5.1 6ch float VO: [gpu] 1920x1080 yuv420p Exiting... (Quit)

Thanks for the info about the versioning logic. What I'm trying to achieve is simply to be able to unlock my root partition (Cf explanation in my first post), what I could not do anymore after upgrading to 6.1.115. I do not remember choosing a rolling release distro, used for almost a year until this kernel update broke everything. My update to trixie was simply motivated by the hypothesis that, because of the kernel update, some incompatibility with cryptsetup (resp. dropbear, initramfs.....) might have occurred and could explain this abrupt behavior change. Obviously, it did not but keep in mind that the problem is anterior to any of the changes I realized in the userspace. In a nutshell, my initial problem remains and I still do not get why. Again: the kernel seems compiled with the proper option initramfs points to the proper libraries. Is dm_mod kernel module loaded? cannot use device rootfs name invalid or still in use IYO, is it really a matter of kernel module availability? cryptsetup-initramfs and dropbear-initramfs are available, to my knowledge, UUID are stable entities cat etc/crypttab rootfs UUID=7afe59bd-ca3d-4618-ae75-f2e9b417eb71 none initramfs,luks So I just don't get it. I also just try 6.12 but rollback because my system did not even boot despite of the proper symlinks in the boot partition