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List:       gentoo-user
Subject:    Re: [gentoo-user] Re: Dual Booting - selection from command line
From:       Mark Knecht <markknecht () gmail ! com>
Date:       2024-01-10 22:14:39
Message-ID: CAK2H+efOY-OStzmQA3aKcPyHkRfW9s-AV8HsX6KhjGjq9x=hrA () mail ! gmail ! com
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On Wed, Jan 10, 2024 at 2:38 PM <thelma@sys-concept.com> wrote:
>
> On 1/9/24 19:22, Nikos Chantziaras wrote:
> > On 10/01/2024 02:18, thelma@sys-concept.com wrote:
> >> I have a box that is two HD's and both are bootable; using "refind"
instead of grub.
> >> So the selection I choose at boot which drive to boot will be the
default (during reboot, from command line) until I select the second drive.
> >>
> >> The box will be installed in a remote location, so I have no option to
select which drive to boot from (unless I'm in front of the box).
> >> Is it possible to select which drive I want to "boot" from the command
line (reboot #2 etc)?
> >
> > Maybe this helps:
https://gist.github.com/Darkhogg/82a651f40f835196df3b1bd1362f5b8c
>
> Thank you for the link.

I have no experience with refind but for my UEFI systems I accomplish this
using efibootmgr and a simple batch file. The machine always boots Linux
by default but from within Linux I can tell it to reboot into Windows

mark@science2:~$ sudo efibootmgr
BootCurrent: 0003
Timeout: 1 seconds
BootOrder: 0003,0000
Boot0000* Windows Boot Manager
Boot0003* ubuntu


mark@science2:~$ cat bin/RebootWindows
sudo efibootmgr -n 0000
reboot
mark@science2:~$

HTH,
Mark

[Attachment #3 (text/html)]

<div dir="ltr"><br><br>On Wed, Jan 10, 2024 at 2:38 PM &lt;<a \
href="mailto:thelma@sys-concept.com">thelma@sys-concept.com</a>&gt; \
wrote:<br>&gt;<br>&gt; On 1/9/24 19:22, Nikos Chantziaras wrote:<br>&gt; &gt; On \
10/01/2024 02:18, <a href="mailto:thelma@sys-concept.com">thelma@sys-concept.com</a> \
wrote:<br>&gt; &gt;&gt; I have a box that is two HD&#39;s and both are bootable; \
using &quot;refind&quot; instead of grub.<br>&gt; &gt;&gt; So the selection I choose \
at boot which drive to boot will be the default (during reboot, from command line) \
until I select the second drive.<br>&gt; &gt;&gt;<br>&gt; &gt;&gt; The box will be \
installed in a remote location, so I have no option to select which drive to boot \
from (unless I&#39;m in front of the box).<br>&gt; &gt;&gt; Is it possible to select \
which drive I want to &quot;boot&quot; from the command line (reboot #2 etc)?<br>&gt; \
&gt;<br>&gt; &gt; Maybe this helps: <a \
href="https://gist.github.com/Darkhogg/82a651f40f835196df3b1bd1362f5b8c">https://gist.github.com/Darkhogg/82a651f40f835196df3b1bd1362f5b8c</a><br>&gt;<br>&gt; \
Thank you for the link.<br><br>I have no experience with refind but for my UEFI \
systems I accomplish this <br>using efibootmgr and a simple batch file. The machine \
always boots Linux <br>by default but from within Linux I can tell it to reboot into \
Windows<br><br>mark@science2:~$ sudo efibootmgr   <br>BootCurrent: 0003<br>Timeout: 1 \
seconds<br>BootOrder: 0003,0000<br>Boot0000* Windows Boot Manager<br>Boot0003* \
ubuntu<div><br></div><div><br>mark@science2:~$ cat bin/RebootWindows   <br>sudo \
efibootmgr -n 0000<br>reboot<br>mark@science2:~$<div><br></div><div>HTH,</div></div><div>Mark</div></div>




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