installtion failed,it says because I'm freebsd 12,not 13.
I type uname - a,it's indeed 12.
I delete 13's url in GhostBSD.conf,pkg update successful.
pkg upgrade says many required packages not installed,remove or not.That's too many,so I ctrl-c.
It seems 13's installtion not complete.

I want to download ghostbsd 21.05.11make a new installtion,but I do not know how to use usb.I have two hard disk both installed ghostbsd.

Is my os over?

Seems like the OS did not upgrade properly.

Has long that you can get to shell login everything is fixable.

What if output. Did you do your upgrade in a terminal or in the TTY console-like suggested in the guide?

I upgrade system in terminal,after download all the files,something went wrong during installtion.

I had download ghostbsd 21.05.11,copy to my usb ventoy folder.When boot,I stuck at the ghostbsd logo,boot stops there.
Should I delete ventoy in my usb?

I can't really help there I have no idea how ventory works.

I had format my usb,copy ghostbsd iso to my usb.I had install solus and ghostbsd to my two hard disk.
I set usb to my first boot option,disabled other boot option.but every time I start my laptop system goes into solus.I can not boot from usb now,wired

now it appears grub> when power on,what to do next?

I use dd command to try again,

now I get errors:

ignoring boot0007:no mefia path
failed to find bootsble pattition
ertor:cannot open boot/lua/loader.lua:no such file or directory

I had install Ghostbsd 21.05.11 successfully,after upgrade,I think I'm on 21.06 now.For first time use I feel system a bit stuck.

I want to install solus on my another disk,which tool can I use?I use dd,but cannot boot.Can I install etcher?
How to use fdisk,it's a little different from linux

gpart is better.

gpart show will give you the list of disks and partitions on them.
Gpart CheatShee