Re: problem installing grub to linux mint partition

[Pascal-liste]

Le 03/06/2018 à 02:24, David H. Durgee a écrit :
> I am encountering problems attempting to install grub on a linux mint 
> 18.3 (sylvia) partition on a multi-boot system.  When booting the live 
> DVD and invoking its installer the partition is not listed as a target 
> to install grub.

Which devices are listed ?

> I opened a terminal window and attempted to manually install grub with 
> the following results:
>
> sudo grub-install -v /dev/sda15
> grub-probe: error: failed to get canonical path of `aufs'.

Is this a UEFI or BIOS/legacy setup ? I'll assume BIOS.

I guess you ran grub-install in the live system instead of the chrooted 
installed system. By default, it assumes that the boot directory is 
/boot on the current /. In your live system, / appears to be a AUFS 
(union mount), which is a virtual filesystem and cannot be mapped to a 
device. You must have the filesystem containing the /boot directory of 
the installed system mounted and specify the path to the directory.

grub-install --boot-directory=/<mountpoint>/boot /dev/sda15

Or chroot into the installed root, mount everything needed (/dev, /proc, 
/sys...) and run grub-install from there.