rtu_linux_services/myir-mkupdate-sdcard/local-startup.service/startup.sh

#!/bin/sh
# runs on system startup
# 2026-05-08 08:50 created by niujiuru

# 设置系统主频
[ -w /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ] && \
  echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

[ -w /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed ] && \
  echo 528000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

# usbfs:内存值
[ -w /sys/module/usbcore/parameters/usbfs_memory_mb ] && \
  echo 500 > /sys/module/usbcore/parameters/usbfs_memory_mb

# 拉起eth0网卡
for i in 1 2 3 4 5; do
  [ -d /sys/class/net/eth0 ] && /sbin/ip link set eth0 up && break
  sleep 1
done

# FTP:创建用户
[ -x /opt/yfkj/local-startup.service/create-ftp-user.sh ] && /opt/yfkj/local-startup.service/create-ftp-user.sh

# 关闭无用服务
systemctl stop rpcbind.socket
systemctl stop rpcbind
systemctl stop check_upgrade

systemctl disable rpcbind.socket
systemctl disable rpcbind
systemctl disable check_upgrade