Hi Milosz,
Yes, You have mentioned good point. I have changed in Job file.
But i would like to add one more point .. If any one refer might useful for them.
In the Job description I am calling u-boot method to boot up to linux. So that, Default base.jinja2 file calling  Setting prompt string to ['Starting Kernel']
But In this device getting Booting Linux...
I have changed the prompt string by using {% set uboot_final_message = "Booting Linux" %} in device-type jinja2 file.
With the above modifications i am able to boot and test.
Setting prompt string to ['Booting Linux']bootloader-commands: Wait for prompt ['Booting Linux'] (timeout 00:04:49)run xa_bootSF: Detected s25fl512s_256k with page size 512 Bytes, erase size 256 KiB, total 64 MiBdevice 0 offset 0xc0000, size 0x8000SF: 32768 bytes @ 0xc0000 Read: OKCurrent Mode: Read Mode (3-byte Addr) (RZ/A1 reset value)SF: Dual SPI modeSF: Detected s25fl512s_256k with page size 512 Bytes, erase size 256 KiB, total 64 MiBNew Mode: Quad I/O Read Mode (4-byte Addr)Booting Linux...end: 1.4.3 bootloader-commands (duration 00:00:00) [common]end: 1.4 uboot-commands (duration 00:00:11)

Thanks for your kind response!!

Regards
Nagendra S

On Tue, Jun 2, 2020 at 2:56 PM Milosz Wasilewski <milosz.wasilewski@linaro.org> wrote:
On Mon, 1 Jun 2020 at 18:02, Nagendra Singamsetti
<nag.singam91@gmail.com> wrote:
>
> Hi Team,
> I am using U-boot method to boot up to linux.
> But at the end of booting means before gets the login prompt it got hanged at here..
> [ 3.759014] Console: switching to colour dummy device 80x30[?25lfbv - The Framebuffer Viewer/root/images/renesas_logo-800x480.jpg800 x 480[?25hWelcome to Buildroot
> after 2 minutes got  buildroot login: [ 90.929835] random: crng init done
> due to this Lava did not fetch "root" string and unable to login. And i have seen stange string in lava while booting
>  [?25h  .
>
> I am able to boot manually (with out lava) with out an issue. And i did not get   [?25h  string ..
>
> How to avoid this problem .Attaching job description/device dictionary files .
> [ 2.837060] Run /sbin/init as init process�Starting logging: OKread-only file system detected...doneStarting network: OKWed Oct 31 09:00:00 UTC 2018[ 3.759014] Console: switching to colour dummy device 80x30[?25lfbv - The Framebuffer Viewer/root/images/renesas_logo-800x480.jpg800 x 480[?25hWelcome to Buildrootbuildroot login: [ 90.929835] random: crng init done
>

This unprintable character is not an issue. Your real problem it the
job file. You're waiting for the string with newlines which is not a
great idea. This is what you have:
       - message: "Welcome to Buildroot
                    buildroot login: root (auto login)"

This is what you should try:
       - message: "Welcome to Buildroot"

milosz


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