I have, and able to boot with arch Linux with kernel 5.10.34 normally. I have older Linux (linuxmint 20.1) on my sda6 with kernel 5.4.0-72 and 5.8.0-50. I am using grub-customizer. Kindly not answer with having live cd.
The strange thing is:
- when I tried to boot to my sda6 is, the /etc/fstab empty.
- it stuck at busybox(initramfs) with, /init exist.
- the exiting from the initramfs resulting kernel panic not sync.
run init: can't execute '': no such directory kernel panic - not syncing: Attempted to kill init! CPU 0 PID 1 Comm run-init Not Tainted 5.8.0-50 generic # 56~20.04.1-Ubuntu call trace omitted: assuming just the panic that significant - last time I use the Linux mint, I open a terminal with sudo on /var/www/somedir/, strangely the kernel was misplaced there.
what i have tried:
- using ridinit=/bin/sh (i missing the unix.stack q)
- manually copy /etc/fstab from arch to /etc/fstab busybox
- disable the selinux
the old fstab before installing arch Linux (Manjaro).
detail about the busybox BusyBox v1.30.1 Ubuntu 1:1.30.1-4ubuntu6.3
having said that, my question is how to create a permanent grub config so I am able to boot to my linuxmint properly?
Amend
executing ash init from initramfs resulting:
cat init: 
/init: 
Thank you
os-prober, mount/dev/sda6and rungrub-mkconfig -o /boot/grub/grub.cfg?lsblkandblkidand tell me which are your mint partitions (boot and root)? And your currentgrub.cfg? Also, did you rungrub-mkconfig?sudo grub-mkconfig. It wont change your configuration, it'll (try to) detect all available OS's and just write the config tostdout. Then we can compare it to your currentgrub.cfg