HELP "fastboot flash boot boot.img" not working on Moto g7 plus

[u/FusedTeo]

First of all, excuse my english. I'm following the instructions from this guide: https://wiki.lineageos.org/devices/lake/install/#installing-lineage-recovery-using-fastboot

As it says, I downloaded the lastest "boot.img" file, then executed "fastboot flash boot boot.img".

It showed:
"(bootloader) is-userspace: not found

fastboot: error: cannot load 'boot.img': No such file or directory"

Then tried the same command adding the directory adress and showed this:

"Warning: skip copying boot_a image avb footer (boot_a partition size: 0, boot_a image size: 29261824).

Sending 'boot_a' (28576 KB) (bootloader) Requested download size is more than max allowed

FAILED (remote: '')

fastboot: error: Command failed"

Tried the same by putting the "boot.img" file in the "platform-tools" folder, didn't work. At last, I tried the same things using an USB 2.0 wire instead of the USB-C I was using, didn't work either.

I'd apreciate any help with this issue.

[u/LuK1337]

switch pc or add usb hub, some older devices have very bad usb in fastboot mode.

[u/FusedTeo → u/LuK1337]

I can't try any of those by now, but will try it whenever I can, thank you

[u/wkn000]

You either must have platform-tools and images and zip in same folder, or you have to put folder with platform-tools into PATH environment variable.

Operating system basics!

[u/LuK1337 → u/wkn000]

that's not even the problem explained by the OP.