How To Configure Minicom For Serial Console Connections
Those who work with infrastructure/server deployment knows how difficult it is to get a console for those devices having no display like switches, routers and a blade chassis/enclosure. Usually we use any console connection utilities like putty, minicom, RealTerm or cu. Here I am explaining how to configure minicom in linux for a console connection to Cisco Nexus 5K switch.
1. Install minicom
[root@techbeats ~]# yum install minicom -y Loaded plugins: product-id, rhnplugin, search-disabled-repos, security, subscription- : manager This system is receiving updates from RHN Classic or RHN Satellite. Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package minicom.x86_64 0:2.3-6.1.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================== Package Arch Version Repository Size ======================================================================================== Installing: minicom x86_64 2.3-6.1.el6 rhel6-x86_64-2016-2 246 k Transaction Summary ======================================================================================== Install 1 Package(s) Total download size: 246 k Installed size: 806 k Downloading Packages: minicom-2.3-6.1.el6.x86_64.rpm | 246 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : minicom-2.3-6.1.el6.x86_64 1/1 Verifying : minicom-2.3-6.1.el6.x86_64 1/1 Installed: minicom.x86_64 0:2.3-6.1.el6 Complete!
2. Check your Serial connection details
[root@techbeats ~]# dmesg | grep tty console [tty0] enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
3. Set serial ports
[root@techbeats ~]# setserial -g /dev/ttyS[0123] /dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4 /dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3 /dev/ttyS2, UART: unknown, Port: 0x03e8, IRQ: 4 /dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
4. Configure port
[root@techbeats ~]# minicom -s minicom: WARNING: configuration file not found, using defaults
then, you will get menu like below
Configure settings as below.
Port : /dev/ttyS0
Bits per sec : 9600
Data bits : 8
Parity : none
Stop bits : 1
Flow control : none
5. Connect to you Switch console
[root@techbeats ~]# minicom Welcome to minicom 2.3 OPTIONS: I18n Compiled on Dec 4 2009, 12:16:46. Port /dev/ttyS0 Press CTRL-A Z for help on special keys Password: Login incorrect ================================================================== WARNING : ================================================================== AMSSW1002 login:
6. Exit from minicom console
To exit Minicom when in terminal mode press ‘Ctrl-A’ to get a message bar at the bottom of the terminal window and then press ‘X’.
Disclaimer:
The views expressed and the content shared in all published articles on this website are solely those of the respective authors, and they do not necessarily reflect the views of the author’s employer or the techbeatly platform. We strive to ensure the accuracy and validity of the content published on our website. However, we cannot guarantee the absolute correctness or completeness of the information provided. It is the responsibility of the readers and users of this website to verify the accuracy and appropriateness of any information or opinions expressed within the articles. If you come across any content that you believe to be incorrect or invalid, please contact us immediately so that we can address the issue promptly.
Tags:
Latest posts
Comments
Leave a Reply