updating grub / EFI ?
by jan128 from LinuxQuestions.org on (#5DXVG)
In multiboot system I was under the impression that grub/efi will load the last successfully used OS.
Even when I do "shutdown" my next boot will always load the last OS installed via ISO.
Secondary - I have successfully duplicated boot-able HDD and it does not show in grub menu at all - consequently I cannot verify it actually works as boot-able OS.
I have noticed that sometime doing "update/ upgrade" the grub is also updated.
I have not have much luck in past updating grub or EFI using CLI.
I may do another ISO install to my main HDD just to be safe.
Any other suggestions ?


Even when I do "shutdown" my next boot will always load the last OS installed via ISO.
Secondary - I have successfully duplicated boot-able HDD and it does not show in grub menu at all - consequently I cannot verify it actually works as boot-able OS.
I have noticed that sometime doing "update/ upgrade" the grub is also updated.
I have not have much luck in past updating grub or EFI using CLI.
I may do another ISO install to my main HDD just to be safe.
Any other suggestions ?