On Sat, Jun 09, 2018 at 10:19:01PM +0200, Didier Kryn wrote:
> Le 09/06/2018 à 22:13, Haines Brown a écrit :
> >I'm installing ascii on a disk, sdc, in a machine that has two other disks,
> >one of which, sda already has a bootable devuan jessie on it.
> >
> >The installation goes well until I go to write my partitioning of sdc to
> >disk. I get the error message: "Two file systems are assigned to the same
> >mount point (/): SCSII (0,0,0), partition #1 (sda) and SCSI3 (0,0,0),
> >partition #1, (sdc).
> >
> >It is true that partition 1 of sda is a bootable primary partition, and
> >I want to do the same for sdc. I've always had multiple independently
> >bootable disks with their own GRUB on a machine. This is the first time
> >I've run into trouble with it. In installation options for sdc, I did
> >ask to have a MBR installed.
> >
> >Why does an installation on one disk care about what happens to be on
> >another unmounted disk?
>
>     First, check carefull y what you do in the partitionning dialog. sda
> shouldn't be used at all by the system you install, but I suspect you have
> maybe marked it as used in some way.

Thanks, Didier,

In the partitioning scheme, sda is HD ST1000DX002-2DV1. It has a primary
partition that is bootable and the mount point /. When I edit this
partition, it says it is on sda.

Disk sdc is ST1000MN0011, and it also has a bootable partition #1. When
I edit it, it says I'm editing disk ST1000MN0011 partition #1 of sdc. I
give it / as mount point, make it bootable, and the label "root".

Partition #1 on sda is has mount point /, the mount options I leave as
the defaults, label I left out the label, but now label it "root". This
should make no difference as far as I can see. I leave typical
usage as "stardard". I don't know what standard options refers to, but I
should think standard option would not cause this disk to interfere with
others.

But I get the error, "Identical mount points for two file systems."

Haines