I did a fresh install for Elementary OS (compelete wipe - recommended partition). But when I boot up, the GRUB shows and makes me wait 30 seconds to boot into eOS (which can be bypassed by pressing enter).
Adding
GRUB_RECORDFAIL_TIMEOUT=0 to /etc/default/grub via sudo nvim /etc/default/grub
and
GRUB_HIDDEN_TIMEOUT_QUIET=true to /etc/default/grub via sudo nvim /etc/default/grub
and finishes with sudo update-grub. The issue fixed!
So I think the reason why this happen is because eOS defaults to LVM partition on the root, which GRUB cannot access (as said in the article I provided).
I did a fresh install for Elementary OS (compelete wipe - recommended partition). But when I boot up, the GRUB shows and makes me wait 30 seconds to boot into eOS (which can be bypassed by pressing enter).
Last night, I did some research and stumbled across a post in askubuntu (https://askubuntu.com/questions/1236136/ubuntu-20-04-lts-cant-hide-grub-menu). What I did from the website are as such:
Adding
GRUB_RECORDFAIL_TIMEOUT=0to/etc/default/grubviasudo nvim /etc/default/grubandGRUB_HIDDEN_TIMEOUT_QUIET=trueto/etc/default/grubviasudo nvim /etc/default/gruband finishes withsudo update-grub. The issue fixed!So I think the reason why this happen is because eOS defaults to LVM partition on the root, which GRUB cannot access (as said in the article I provided).