pbies

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  1. Ok, got it! I've moved finally to Ubuntu Focal server: make SSD from disk image make eMMC from the same disk image edit /boot/ on eMMC to my needs make SSD via USB 3.0 as root file system in kernel parameters Kernel upgrade is hard but possible.
  2. There was unneeded line in /etc/samba/smb.conf: ; socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192
  3. I am observing huge difference in samba speed (both ways to/from PC on Gigabit Ethernet) with Rock Pi 4B. Earlier I had Debian and Ubuntu provided by Radxa and recently speed has gone from 115 MB/s to ~12 MB/s. I moved to Armbian which is currently available for download. Before any updates I had 115 MB/s transfer speed. When I updated to Armbian 20.08.11 Focal with Linux 5.8.15-rockchip64 the speed has go down to ~15 MB/s. The bigger change that happened was kernel upgrade. I exclude problems like: PSU (it is over enough), home network (nothing has changed) and SSD
  4. Hi All! I've recently moved to Armbian (Debian buster server) on my Rock Pi 4B - from Ubuntu provided by Radxa (some way failed upgrade). However system is booting from eMMC which has Radxa kernel and then directly to Armbian file system on SSD connected via USB 3.0. Great is that Armbian is working with Radxa kernel, which I want to change to 5.8.14-rockchip64. My question is how should I prepare /boot folder on eMMC (which is FAT file system) to boot Armbian kernel? Is there any other way (reformat eMMC for ext4@32768 sector for /boot folder) to achieve this?
  5. pbies

    Rock PI 4

    I bought here https://pishop.at/index.php/single-board-computer/rock-pi-4-model-b-4gb-detail with overall price (with shipment) €114.78 (504.44 PLN). I've seen the same model €105 from Spain without shipment...
  6. pbies

    Rock PI 4

    @Dante4 unfortunately there are some countries which they are not shipping to. Poland is one of them.
  7. pbies

    Rock PI 4

    @NicoD I will need to order heatsink. For now it is just a test board. I'll try not to heat it too much.
  8. pbies

    Rock PI 4

    No heatsink, no fan. $ stress-ng --cpu 1 --cpu-method matrixprod --metrics-brief -t 60 stress-ng: info: [1125] successful run completed in 60.22s (1 min, 0.22 secs) stress-ng: info: [1125] stressor bogo ops real time usr time sys time bogo ops/s bogo ops/s stress-ng: info: [1125] (secs) (secs) (secs) (real time) (usr+sys time) stress-ng: info: [1125] cpu 253 60.22 60.19 0.00 4.20 4.20 $ stress-ng --cpu 6 --cpu-method matrixprod --metrics-brief -t 60 stress-ng: info: [1147] successfu
  9. pbies

    Rock PI 4

    cpuinfo: processor : 0 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 lscpu: Architecture: aarch64 Byte Order: Little Endian CPU(s): 6 On-line CPU(s) list: 0-5 Thread(s) per core: 1 Core(s) per socket: 3 Socket(s): 2 Vendor ID: ARM Model: 4 Model name: Cortex-A53 Stepping: r0p4 CPU max MHz: 1800.0000 CPU min MHz: 408.0000 BogoMIPS: 48.00 Flags:
  10. pbies

    Rock PI 4

    My Rock Pi 4 B 4GB just arrived. Unluckily I don't have PSU for it yet.
  11. pbies

    Rock PI 4

    @martinayotte I am not asking about Armbian. I am asking about the mentioned OSes. I have Armbian on armv7l and it is 32-bit. At least provided binaries are 32-bit. I ask about bitness of the provided OSes for Rock Pi 4. There is no Armbian for this board.
  12. pbies

    Rock PI 4

    @martinayotte I am not asking for CPU bitness. I am asking if these OSes images are 64-bit!
  13. pbies

    Rock PI 4

    @hipboi I already have this one. I was asking if these are 64-bit or 32-bit...
  14. pbies

    Rock PI 4

    Thank you for the links! Are these 64-bit Debian/Ubuntu?
  15. pbies

    Rock PI 4

    @mboehmer Where did you get Debian for this board?