How do we restore the grub which gets replaced or just temporarily overridden by other Linux i.e. Artix installation causing PC to start directly running the Artix ?
So expecteded is getting restored as it was with additional this Artix option on grub ?

Please help out this'd be disaster as that grub so invaluable to me
Thanks before

Can you boot the previous Linux OS from the new Grub menu of Artix? If so, it should be fairly simple. Are you using a current UEFI machine or the older Legacy BIOS using the MBR. If it is UEFI, it might be as simple as moving your other Linux OS to first boot in the UEFI menu using efibootmgr. If you were previously using the other Linux OS on Legacy, it would have had Grub code in the MBR which was overwritten by the new install of Artix, so again you could boot your old Linux from the Artix boot menu and simply reinstasll Grub as root. Example as root user: grub-install /dev/sda This will only work if sda if the drive on which you boot so you need to get that information yourself.