Le 02/06/2018 à 12:48, Haines Brown a écrit :
> On Sat, Jun 02, 2018 at 11:10:02AM +0200, Didier Kryn wrote:
>> Le 02/06/2018 à 01:55, Haines Brown a écrit :
>>> On Fri, Jun 01, 2018 at 11:21:06PM +0200, Florian Zieboll wrote:
>>>> Am 1. Juni 2018 22:24:47 MESZ schrieb Haines Brown <haines@???>:
>>>>
>>>>> I installed Jessie on a new disk on a new machine. I can boot it from
>>>>> the GRUB menu on another disk on that machine, but when I try to boot
>>>>> the new disk directly, all I get is a blinking cursor at upper left.
>>     Hi Haines.
>>
>>     Could you describe more acurately the situation? You have two disks,
>> each with an installed OS. I suppose your working system is on /dev/sdb and
>> your new, non-booting one is on sda. On which OS are you running update-grub
>> and grub-install? Let's clarify this before going further. I would like also
>> to know how you reach this situation because it canhappen, but I've never
>> seen that after a direct install from the installer.
>>
>>             Didier
> I somehow managed to get my new principle disk to boot directly. Access
> to its grub menu does not seem to have been the result of an update-grub
> or redoing grub-install. So I have no idea why the menu comes up now.
>
> The machine has three disks and four operating systems. The grub menu
> from which I previously booted disks is that of a Debian Wheezy system
> on an old disk. Its menu gives access to four operating systems on three
> disks. a) One disk holds my new installation of Devuan Jessie that now
> can be booted directly, b) second disk has Debian Wheezy with a workable
> grub menu with which to boot the other disks, c) Devuan Jessie on a disk
> that can't be booted directly (blinking cursor). I don't worry about it
> because it was an auto-installation and I don't know how to use the
> Xfce desktop. At some point I'll be installed Devuan Ascii on it.
>
> The fourth operating system, a Devuan Jessie base system (no x server or
> grub) is on partition 15 of disk (b) or disk (c).
>
> I apologize for having raising a problem that then resolved itself
> without my knowing why.

    Nice that the problem was solved. IIUC, you can easily tell your
bios which disk to boot from. Nevertheless, your setup is pretty
complicated, easy to mess with :-)

            Didier