grub

old hp
Partition name: archcraft                                                  │
 │ Partition UUID: 29EF9697-4189-48F2-830A-2A4DCC8AEE40                       │
 │ Partition type: Linux filesystem (0FC63DAF-8483-4772-8E79-3     

Partition UUID: 67570847-3D7F-421F-9C04-13BBE306F866                       │
 │ Partition type: Linux swap (0657FD6D-A4AB-43C4-84E5-0933C84B4F4F)          │
 │Filesystem UUID: 0c9b4784-84b0-437a-b50a-8544cc569e18                       │
 └─────────────────────────────────────────────────────────────


Ubuntu
Partition UUID: 945D0C81-1B6A-42F7-B517-6FD37E8EA9DA                       │
 │ Partition type: Linux filesystem (0FC63DAF-8483-4772-8E79-3D69D8477DE4)    │
 │Filesystem UUID: eee3ebe8-2bcc-43c1-b8db-5e627635417b         


Arch
Partition UUID: C604A90F-30C0-4C55-933C-FF51320B83EC                       │
 │ Partition type: Linux root (x86) (44479540-F297-41B2-9AF7-D131D5F0458A)    │
 │Filesystem UUID: b0425c17-5b5e-49cf-bbbc-f2d959fac780  



Learning:

- add distro to grub
https://www.youtube.com/watch?v=okYxL7f1VYs
 make sure that os-prober is enabled in `/etc/default/grub`
 uncomment following line yo enable it
 `GRUB_DISABLE_OS_PROBER=false`
 Now run `sudo os-prober`
 it will list other distro but not the current one. Make sire that other distros are mounted
finally use 
`sudo grub-mkconfig -o /boot/grub/grub/cfg` to update grub menu
 


- remove systemd-boot 
`bootctl remove`


- `lsblk -o name,type,uuid`
https://www.reddit.com/r/archlinux/comments/tqzodn/other_distros_not_detect_after_fresh_installation/
manual way
```
menuentry "Ubuntu" {
        # assuming that UUID is 763A-9CB6
	search --no-floppy --set=root --fs-uuid eee3ebe8-2bcc-43c1-b8db-5e627635417b

        # search by label OTHER_LINUX (make sure that partition label is unambiguous)
        #search --no-floppy --set=root --label OTHER_LINUX

	linux /boot/vmlinuz  root=UUID=eee3ebe8-2bcc-43c1-b8db-5e627635417b
	#initrd /boot/initrd.img (if the other kernel uses/needs one)
	initrd	/boot/amd-ucode.img /boot/initramfs-linux-lts.img
}
```