1.交换机型号及版本
型号：S5750C-28SFP4XS-H
当前版本：S5700H_RGOS 11.4(1)B2, Release(02211117)
2.升级交换机
（1）U盘根目录放入交换机的版本文件，这里是S5700H_RGOS11.4(1)B74P1_install.bin
（2）将U盘插入交换机的USB口，然后进行升级，操作如下：
S5750C#upgrade usb0:S5700H_RGOS11.4(1)B74P1_install.bin
Upgrade the device must be auto-reset after finish, are you sure upgrading now?[Y/N]y
S5750C#*Jul 31 14:59:06: %7:
*Jul 31 14:59:06: %7: [Slot 0]:Upgrade processing is 10%
*Jul 31 14:59:11: %7:
*Jul 31 14:59:12: %7: [Slot 0]:Upgrade processing is 20%
*Jul 31 14:59:12: %7:
*Jul 31 14:59:12: %7: [Slot 0]:Upgrade processing is 30%
*Jul 31 14:59:12: %7:
*Jul 31 14:59:12: %7: [Slot 0]:Upgrade processing is 40%
*Jul 31 14:59:12: %7:
*Jul 31 14:59:12: %7: [Slot 0]:Upgrade processing is 50%
*Jul 31 14:59:12: %7:
*Jul 31 14:59:12: %7: [Slot 0]:Upgrade processing is 60%
*Jul 31 14:59:13: %7:
*Jul 31 14:59:13: %7: [Slot 0]:Upgrade processing is 70%
*Jul 31 14:59:41: %7:
Upgrade info [OK]
Boot version[1.2.15.1abab99->1.2.36.72cc987]
Kernel version[3.10.18.c58a6af7e7af89->3.10.18.9b4a69046b0814]
Rootfs version[1.0.0.954c23f2->1.0.0.7b5ea386]
*Jul 31 14:59:41: %7: [Slot 0]:Upgrade processing is 80%
Reload system to take effect!
*Jul 31 14:59:41: %7:
*Jul 31 14:59:41: %7: [Slot 0]:
*Jul 31 14:59:41: %7: Upgrade info [OK]
*Jul 31 14:59:42: %7: Boot version[1.2.15.1abab99->1.2.36.72cc987]
*Jul 31 14:59:42: %7: Kernel version[3.10.18.c58a6af7e7af89->3.10.18.9b4a69046b0814]
*Jul 31 14:59:42: %7: Rootfs version[1.0.0.954c23f2->1.0.0.7b5ea386]
*Jul 31 14:59:42: %7:
*Jul 31 14:59:42: %7: [Slot 0]:Reload system to take effect!
*Jul 31 14:59:42: %7:
*Jul 31 14:59:42: %7: [Slot 0]:Upgrade processing is 100%
*Jul 31 14:59:51: %7: System is reloading due to upgrade.
*Jul 31 14:59:52: %7: %PKG_MGMT:auto-sync box config synchronization, Please wait for a moment....
中间输入的日志省略，自动重启完成后会提示输入账号密码
Username:admin
Password:********
S5750C>en
Password:**********
S5750C#show version
System description : Ruijie 10G Ethernet Switch(S5750C-28SFP4XS-H) By Ruijie Networks
System start time : 2022-07-31 15:00:45
System uptime : 0:00:02:31
System hardware version : 1.00
System software version : S5700H_RGOS 11.4(1)B74P1
System patch number : NA