NanoPi M4 Metal Case w/ Cooling Fan その2

2019/10/12

ファンの設定

とりあえず以下のコマンドでファンが動作することを確認

前準備

root@kodi-pi-m4:~# echo 0 > /sys/class/pwm/pwmchip1/export 
root@kodi-pi-m4:~# echo 50000 > /sys/class/pwm/pwmchip1/pwm0/period 
root@kodi-pi-m4:~# echo 1 > /sys/class/pwm/pwmchip1/pwm0/enable

実際にファンをコントロール（動作させる）するコマンド

まずは強めに

root@kodi-pi-m4:~# echo 45000 >  /sys/class/pwm/pwmchip1/pwm0/duty_cycle

次は弱く

root@kodi-pi-m4:~# echo 49200 >  /sys/class/pwm/pwmchip1/pwm0/duty_cycle

echoの値を45000から49300ぐらいに変化させることでファンの回転数がかわることがわかったので以下のような簡単なスクリプトを作る

#! /bin/bash
echo 0 > /sys/class/pwm/pwmchip1/export
echo 50000 > /sys/class/pwm/pwmchip1/pwm0/period
echo 1 > /sys/class/pwm/pwmchip1/pwm0/enable

temp=`cat /sys/class/thermal/thermal_zone0/temp`
echo $temp
if [ ${temp} -lt 32000 ]; then
    echo 49200 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
elif [ 35000 -lt $temp ]; then
    echo 49100 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
elif [ 40000 -lt $temp ]; then
    echo 48000 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
elif [ 45000 -lt $temp ]; then
    echo 47000 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
elif [ 50000 -lt $temp ]; then
    echo 45000 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
fi

cat /sys/class/thermal/thermal_zone0/tempより現在温度をみてそれに応じたファンの回転数にするという感じ

このシェルをcronに2分毎に起動でちゃんと制御されているっぽいことがわかった。

NVMEのrootfs化

大まかな流れ的には　パーテーション作成しフォーマット後、マウント。

その後/(ルート)をrsyncでコピーしroot(/)のマウントポイントをnvmeに変えて起動

まずは必要そうなものをINSTALL

root@kodi-pi-m4:~# apt install rsync hdparm u-boot-tools

fdiskする

root@kodi-pi-m4:~# fdisk -l
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/nvme0n1: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mmcblk1: 14.6 GiB, 15634268160 bytes, 30535680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x625397d5

Device         Boot  Start      End  Sectors  Size Id Type
/dev/mmcblk1p1       32768   278527   245760  120M 83 Linux
/dev/mmcblk1p2      278528 30535679 30257152 14.4G 83 Linux

Disk /dev/mmcblk1boot1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/mmcblk1boot0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

/dev/nvme0n1: 931.5 GiBがあるのがわかる

パーテション設定

root@kodi-pi-m4:~# fdisk /dev/nvme0n1 

Welcome to fdisk (util-linux 2.31.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0xc4bbab93.

Command (m for help): p
Disk /dev/nvme0n1: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xc4bbab93

Command (m for help):

つぎに n[ENTER] , p[ENTER] , 1[ENTER], [ENTER], [ENTER]の順でパーテーションを作成

Command (m for help): n
Partition type
   p   primary (0 primary, 0 extended, 4 free)
   e   extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-1953525167, default 2048): 
Last sector, +sectors or +size{K,M,G,T,P} (2048-1953525167, default 1953525167): 

Created a new partition 1 of type 'Linux' and of size 931.5 GiB.

Command (m for help):

最後にwで設定反映

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

確認

root@kodi-pi-m4:~# fdisk -l
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/nvme0n1: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x29d4746f

:
:

ファイルシステムを決める

root@kodi-pi-m4:~# mkfs.ext4 /dev/nvme0n1p1
mke2fs 1.44.1 (24-Mar-2018)
Discarding device blocks: done                            
Creating filesystem with 244190646 4k blocks and 61054976 inodes
Filesystem UUID: 4a0347ba-d421-4347-872e-9cf02cf7c562
Superblock backups stored on blocks: 
	32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
	4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 
	102400000, 214990848

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (262144 blocks): done
Writing superblocks and filesystem accounting information: done

息抜き　性能調査（hdparmコマンドより）

root@kodi-pi-m4:~# hdparm -Tt --direct /dev/nvme0n1p1

/dev/nvme0n1p1:

 Timing O_DIRECT cached reads:   702 MB in  2.00 seconds = 350.79 MB/sec
 Timing O_DIRECT disk reads: 1090 MB in  3.00 seconds = 362.76 MB/sec

はやい...

気を取り直してマウントする

root@kodi-pi-m4:~# mkdir /media/newdrive
root@kodi-pi-m4:~# mount /dev/nvme0n1p1 /media/newdrive/

rsyncでコピー

root@kodi-pi-m4:~# rsync -avx / /media/newdrive

それなりに時間経過..

:
:

sent 3,034,177,769 bytes  received 1,376,528 bytes  23,808,268.00 bytes/sec
total size is 3,028,606,746  speedup is 1.00
root@kodi-pi-m4:~#

どうやら終わったようだ（5分もかからなかったか

出来上がりを確認

root@nanopi-m4:~# ll /media/newdrive/
total 100
drwxr-xr-x 22 root root  4096 Dec  2  2018 ./
drwxr-xr-x  3 root root  4096 Oct 12 02:56 ../
drwxr-xr-x  2 root root  4096 Dec 22  2018 bin/
drwxr-xr-x  2 root root  4096 Jan  1  2019 boot/
drwxr-xr-x  2 root root  4096 Oct 12 02:55 dev/
drwxr-xr-x 88 root root  4096 Oct 12 02:58 etc/
drwxr-xr-x  3 root root  4096 Dec  2  2018 home/
drwxr-xr-x 15 root root  4096 Oct 12 02:58 lib/
drwx------  2 root root 16384 Dec  2  2018 lost+found/
drwxr-xr-x  3 root root  4096 Oct 12 02:56 media/
drwxr-xr-x  2 root root  4096 Oct 11  2018 mnt/
drwxr-xr-x  2 root root  4096 Oct 11  2018 opt/
dr-xr-xr-x  2 root root  4096 Jan  1  1970 proc/
drwx------  3 root root  4096 Dec 29  2018 root/
drwxr-xr-x  2 root root  4096 Oct 12 02:55 run/
drwxr-xr-x  2 root root  4096 Oct 12 02:58 sbin/
drwxr-xr-x  2 root root  4096 Oct 11  2018 srv/
dr-xr-xr-x  2 root root  4096 Jan 18  2013 sys/
drwxr-xr-x  5 root root  4096 Oct 15  2018 system/
drwxrwxrwt 10 root root  4096 Oct 12 02:58 tmp/
drwxr-xr-x 11 root root  4096 Dec 22  2018 usr/
drwxr-xr-x 11 root root  4096 Oct 11  2018 var/

NVME SSDをunmount

root@kodi-pi-m4:~# umount /dev/nvme0n1p1

boot.cmdを編集

#setenv bootargs "earlyprintk root=/dev/mmcblk1p2 rw rootfstype=ext4 rootwait fsck.repair=${fsck.repair} panic=10 ${extra}"

↓

setenv bootargs "earlyprintk root=/dev/nvme0n1 rw rootfstype=ext4 rootwait fsck.repair=${fsck.repair} panic=10 ${extra}"

/dev/mmcblk1p2をコメントアウトして新たに/dev/nvme0n1を追記

boot反映コマンド

root@kodi-pi-m4:~# cd /boot
root@kodi-pi-m4:~# mkimage -C none -A arm -T script -d boot.cmd boot.scr

そして再起動

root@kodi-pi-m4:~# sync && reboot

起動後にdf

root@kodi-pi-m4:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/nvme0n1p1  916G  3.0G  867G   1% /
devtmpfs        963M     0  963M   0% /dev
tmpfs           964M     0  964M   0% /dev/shm
tmpfs           964M  8.6M  955M   1% /run
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           964M     0  964M   0% /sys/fs/cgroup
/dev/mmcblk1p1  113M   21M   84M  20% /boot
tmpfs           193M     0  193M   0% /run/user/1000

うおおおお！！できたああああああ

-NanoPi
-nanopi-m4, nvme, rootfs