Cool, it worked! 
vagrant@ubuntu-impish:~/boot-fp4$ abootimg -i boot-FP4.img
Android Boot Image Info:
* file name = boot-FP4.img
* image size = 56143872 bytes (53.54 MB)
page size = 4096 bytes
* Boot Name = ""
* kernel size = 44576784 bytes (42.51 MB)
ramdisk size = 1149710 bytes (1.10 MB)
* load addresses:
kernel: 0x00008000
ramdisk: 0x01000000
tags: 0x00000100
* cmdline = console=ttyMSM0,115200,n8 earlycon=msm_geni_serial,0x888000 androidboot.hardware=qcom androidboot.console=ttyMSM0 androidboot.memcg=1 lpm_levels.sleep_disabled=1 video=vfb:640x400,bpp=32,memsize=3072000 msm_rtb.filter=0x237 service_locator.enable=1 androidboot.usbcontroller=a600000.dwc3 swiotlb=2048 cgroup.memory=nokmem,nosocket loop.max_part=7 buildvariant=user
* id = 0xb6ec92b1 0x39e4531c 0x8e066b56 0xa20eddb1 0x3d5770da 0x00000000 0x00000000 0x00000000
Now I just need the device for flashing 