Dear friends:
I delved into it in my spare time and have successfully installed chromeOS onto an LVM logical volume,
and it booted up successfully.
Compared to the advantages of .img files, LVM logical volumes bypass the file system layer directly,
enabling better performance improvements, as AI has told me.
In my personal opinion, .img files are prone to being accidentally deleted by the rm command,
whereas LVM logical volumes are more secure and less likely to be damaged by other operating systems;
The new version supports the following new features:

• The graphical interface allows for setting kernel command line parameters.
  Compared to the terminal-based operation method of Brunch, this interface is more aesthetically pleasing and does not require a reboot.
• Boot ChromeOS on the LVM logical volume;
• Install chromeOS with a graphical interface onto an LVM logical volume; (the version after next)
• Operate LVM logical volumes via graphical interface; (the version after next)
• Graphical interface: Update the Brunch framework; (the version after next)
• Graphical interface updated to slot A|B; (the version after next) However, I've had less spare time recently, so I haven't finished organizing and uploading them yet.
  I'm still designing the theme for the new interface and struggling with some layout and icon issues; I'm the only one maintaining it with no one to help me, so you'll have to wait for several weeks or even months. Cheer me on.

It is used to dual-boot chromeOS, or even multi-boot, which is installed on no chromebook by using Brunch Framework.

• Set default .img and .img.grub.txt files through graphical interface;
• Using patched grub of a1ive, it totally supports secure boot，
  • It can load any unsigned kernel;
• Mouse and PS/2 trackpad;
• Multiple languages;
• Set the timeout on the graphical interface;

🖱️Click to Unfold to see🖱️

1024x768

1920x1080

• Copy the folder zip: EFI/brunch into ESP: \EFI;

• According to the prompt, select the item - [File]; (refer to gif animation)
• Enter the file manager of Grub2, and search for the .img and .img.grub.txt files, and set them as default; (refer to gif animation)

• You should use Yours-UEFI (with patch) to load grub2-brunch.efi (unsigned).

dino from franeklubi

• • need CSM mode enabled, it cannot run on only UEFI;

If you like it and are looking forward to the coming update, you can star it.💫
Tell your friends that you have got a good stuff.

• Many files are adapted from Brunch Framework;
• grub from a1ive;
• The codes of grub2 file manager are adapted from grub2-filemanager of a1ive；
• Terminal box is adapted from the official theme of Ventoy;
• Many icons from flaticon；
• Some icons from iconfinder；
• dino from franeklubi;
• The .gif cartoon is taken by using Hyper-V and Screen2Gif;
• ......