The whole welcome is of 27 lines but for trouble shooting i have reduced it to only 1 line in /etc/issue in test image with which I am currently testing:
System Info:

The actual welcome messages will look like this:
|_   _ / __ \ / ____|
  | | | |  | | (___
  | | | |  | |\___ \
 _| | | |__| |____) |
|_____ \____/|_____/

System Info:
  Version.....: Debian OS
 Type......: Linux

Interfaces:
  eth0.......:192.168.1.10

Instruction:
1. welcome to console
2. login with user and password

Alternative :
1. Make sure network interface is up of eth0 network
2. Open a browser and type "http://192.168.1.10"

You are currently connected via:ttyS0 (115200)

device-mgmt login: 


Output of /etc/issue

 _____ ____    ______
|_   _ / __ \ / ____|
  | | | |  | | (___
  | | | |  | |\___ \
 _| | | |__| |____) |
|_____ \____/|_____/
System :
  Version.....: \S{VALUE}
  Type......: \S{NAME}
Interfaces:
  abc : \e{green}\4{interface}\e{reset}
Instruction:
1. welcome to console
2. login with user and password

\e{darkgray}Alternative :
1. Make sure network interface is up of \4{interface}'s network
2. Open a browser and type "http://\4{interface}"\e{reset}

You are currently connected via: \l (\b)

Thanks,
Sweta
From: Milosz Wasilewski <milosz.wasilewski@foundries.io>
Sent: Tuesday, October 29, 2024 3:31 PM
To: Sweta Ghosh <sweta.ghosh@nagarro.com>
Cc: Stefan <lists.lavasoftware.org_23@green-sparklet.de>; lava-users@lists.lavasoftware.org <lava-users@lists.lavasoftware.org>
Subject: Re: [lava-users] Re: Auto login fails after adding banner message before login prompt
 
[Email from a non-Nagarro source: please exercise caution with links and attachments]


On Tue, Oct 29, 2024 at 9:34 AM Sweta Ghosh <sweta.ghosh@nagarro.com> wrote:
>
> Hello Milosz,
> I tried as suggested please find the error message and job details:
>
> - boot:
>     prompts:
>      - 'abcd:'
>     timeout:
>       minutes: 6
>     method: qemu
>     media: tmpfs
>     auto_login:
>       login_prompt: "login:"
>       username: root
>       password_prompt: "Password:"
>       password: "root"
>
>
> I would like to highlight that LAVA job was working fine with my  image before welcome message (/etc/issue) was added in the image and it broke the job. As welcome messages are necessary in my case so it would be nice if LAVA could either ignore those welcome messages and auto-login and execute the test like before. Please find the logs of job using image without welcome message

Could you paste the contents of the welcome message? LAVA is matching
some string there and stops the auto_login procedure. I think this is
the line just after "System info" but it's not displayed in the
screenshots you're posting.

Best Regards,
Milosz