Before login page start 6sec extra takes

[Raghavendra Bhovi]

Hi developers

when bootloader boots   6sec extra takes before star login page how to remove this time bellow copied grabserial captured time please any one developer answer me hopefully I am waiting for reply

[21.436136 0.235720] [ OK ] Started Login Service.

[21.619567 0.183431] [ OK ] Started OpenBSD Secure Shell server.

[22.057817 0.438250] [ OK ] Started LSB: Load kernel modules needed to enable cpufreq scaling.

[22.103397 0.045580] Starting LSB: set CPUFreq kernel parameters...

[22.477003 0.373606] [ OK ] Started LSB: set CPUFreq kernel parameters.

[23.067155 0.590152] [ OK ] Found device /dev/ttyS0.

[23.100613 0.033458] [ OK ] Started Serial Getty on ttyS0.

[23.115977 0.015364] [ OK ] Reached target Login Prompts.

[29.139019 6.023042]

[29.151516 0.012497] Debian GNU/Linux 9 ttrhvt.0941 ttyS0

[29.154867 0.003351]

[29.154939 0.000072] BeagleBoard.org Debian Image 2017-08-31

[29.158610 0.003671]

[29.158696 0.000086] Support/FAQ: http://elinux.org/Beagleboard:BeagleBoneBlack_Debian

[29.164656 0.005960]

[29.164743 0.000087] default username:password is [debian:temppwd]

[29.168920 0.004177]

[29.174534 0.005614] ttrhvt login: 

please tell me i am waiting for your replay

thanking you