Hi,

I plan to switch completely from Windows 11 to Debian on my laptop, but
as a first step I'd like to configure double-boot setup to give it a
try, look around and check if all hardware works fine under Debian.

Current state:
Dell laptop (one NVMe disk only) with Windows 11 onboard.
Windows starts in UEFI mode (Secure Boot ON).
Already resized main partition to make space for Debian.
So currently there are the following partitions on disk:

100MB, FAT32, GPT (EFI System Partition)
16MB, Other, GPT (Reserved Partition)
300GB, NTFS, GPT (Data Partition) (Main C: disk visible under Win11)
168GB, free space, ready to have ~150GB for Debian and 16GB for swap
880MB, NTFS, GPT (Recovery Partition)

First try:
UEFI Boot (Secure Boot ON), Debian Trixie, Expert mode installation
During installation Debian does NOT see my disk at all (pendrive with
Debian Trixie is visible only)
Also during installation Debian says that "it seems there is another
system installed in Legacy Mode, am I  sure to force UEFI mode?" which
is not correct - Win11 is installed in UEFI mode (when I try to boot it
in Legacy Mode I get Windows Blue Screen Of Death)

Second try:
Secure Boot set to OFF.
Nothing changed during Trixie installation, so no device to install on.

Third try:
Boot in Legacy Mode (so Secure Boot is OFF).
Debian Trixie can see my laptop disk properly, so installation is
successful, but...
It cannot see my Windows 11 installation when trying to install/configure/prepare GRUB.
At this step I decided to NOT install GRUB on my main disk to NOT loose
access to my Windows 11 system.
(but Trixie says that it's possible to restore access by manual
configuration of GRUB later on - I'm not sure...)

Main goal:
To have both current Windows 11 and new Debian Trixie available in GRUB
and properly bootable.

How to achieve this? :-)

Thank you,
Best Regards,
Rafal

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sun, 29 Dec 2024 01:20:17 +0100
Rafał Lichwała <rafal@siliconet.pl> wrote:

Hi,

I plan to switch completely from Windows 11 to Debian on my laptop,
but as a first step I'd like to configure double-boot setup to give
it a try, look around and check if all hardware works fine under
Debian.

Current state:
Dell laptop (one NVMe disk only) with Windows 11 onboard.
Windows starts in UEFI mode (Secure Boot ON).
Already resized main partition to make space for Debian.
So currently there are the following partitions on disk:

100MB, FAT32, GPT (EFI System Partition)
16MB, Other, GPT (Reserved Partition)
300GB, NTFS, GPT (Data Partition) (Main C: disk visible under Win11)
168GB, free space, ready to have ~150GB for Debian and 16GB for swap
880MB, NTFS, GPT (Recovery Partition)

First try:
UEFI Boot (Secure Boot ON), Debian Trixie,

Is there any reason for trixie? Both trixie and its installer (d-i) are evolving and may not give you useful results. I suggest you use the
current Stable, Debian 12.8, bookworm.

Expert mode installation During installation Debian does NOT see my
disk at all (pendrive with Debian Trixie is visible only)

Interesting. I recently installed Debian 12 to an NVMe machine with no
issues.

Also during installation Debian says that "it seems there is another
system installed in Legacy Mode, am I  sure to force UEFI mode?"
which is not correct - Win11 is installed in UEFI mode (when I try to
boot it in Legacy Mode I get Windows Blue Screen Of Death)

Have you changed this in the firmware (formerly known as the BIOS)?
Make sure it is set for UEFI booting. Secure boot should probably be
off, but you should be able to turn it back on when you are done.

Second try:
Secure Boot set to OFF.
Nothing changed during Trixie installation, so no device to install
on.

Third try:
Boot in Legacy Mode (so Secure Boot is OFF).
Debian Trixie can see my laptop disk properly, so installation is successful, but...
It cannot see my Windows 11 installation when trying to install/configure/prepare GRUB.
At this step I decided to NOT install GRUB on my main disk to NOT
loose access to my Windows 11 system.
(but Trixie says that it's possible to restore access by manual configuration of GRUB later on - I'm not sure...)

Main goal:
To have both current Windows 11 and new Debian Trixie available in
GRUB and properly bootable.

I take it "properly bootable" means UEFI, and secure boot optional.

How to achieve this? :-)

I'd start by trying to install Debian 12, bookworm.


--
Does anybody read signatures any more?

https://charlescurley.com
https://charlescurley.com/blog/

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 12/28/24 16:20, Rafał Lichwała wrote:

Hi,

I plan to switch completely from Windows 11 to Debian on my laptop,

Make? Dell, below. It is better to state this information at the top
of your message.


Model?

but
as a first step I'd like to configure double-boot setup to give it a
try, look around and check if all hardware works fine under Debian.

I recommend that you use Debian Live "Statble" to test hardware
compatibility.:

https://www.debian.org/CD/live/

Current state:
Dell laptop (one NVMe disk only) with Windows 11 onboard.
Windows starts in UEFI mode (Secure Boot ON).
Already resized main partition to make space for Debian.
So currently there are the following partitions on disk:

100MB, FAT32, GPT (EFI System Partition)
16MB, Other, GPT (Reserved Partition)
300GB, NTFS, GPT (Data Partition) (Main C: disk visible under Win11)
168GB, free space, ready to have ~150GB for Debian and 16GB for swap
880MB, NTFS, GPT (Recovery Partition)

Manual transcription is error prone. It is better to cut and paste a
console session showing the exact prompt, command entered, and output displayed.

First try:
UEFI Boot (Secure Boot ON), Debian Trixie, Expert mode installation

Trixie is still in testing:

https://www.debian.org/releases/trixie/


It is better to use Stable (or Old Stable).

During installation Debian does NOT see my disk at all (pendrive with
Debian Trixie is visible only)

On my Dell machines with NVMe drives, I must change the Setup settings
for Debian to see NVMe drives:

Settings

-> System Configuration
-> SATA Operation -> AHCI

Also during installation Debian says that "it seems there is another
system installed in Legacy Mode, am I  sure to force UEFI mode?" which
is not correct - Win11 is installed in UEFI mode (when I try to boot it
in Legacy Mode I get Windows Blue Screen Of Death)

Second try:
Secure Boot set to OFF.
Nothing changed during Trixie installation, so no device to install on.

Third try:
Boot in Legacy Mode (so Secure Boot is OFF).
Debian Trixie can see my laptop disk properly, so installation is
successful, but...
It cannot see my Windows 11 installation when trying to install/ configure/prepare GRUB.
At this step I decided to NOT install GRUB on my main disk to NOT loose access to my Windows 11 system.
(but Trixie says that it's possible to restore access by manual
configuration of GRUB later on - I'm not sure...)

Main goal:
To have both current Windows 11 and new Debian Trixie available in GRUB
and properly bootable.

How to achieve this? :-)

Thank you,
Best Regards,
Rafal

It is best to take an image of the system drive before making
significant changes. I recommend that you do so now, before making
further changes.


I recommend that you get Windows 11 working again, use Windows Disk
Management remove the partitions created by d-i, create a partition and filesystem for virtual machines in the empty space, install your
hypervisor of choice, create a VM, and install Debian Stable into the VM.


David

--- SoupGate-Win32 v1.05
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On Sunday, 29-12-2024 at 11:20 Rafał Lichwała wrote:

Hi,

I plan to switch completely from Windows 11 to Debian on my laptop, but
as a first step I'd like to configure double-boot setup to give it a
try, look around and check if all hardware works fine under Debian.

Current state:
Dell laptop (one NVMe disk only) with Windows 11 onboard.
Windows starts in UEFI mode (Secure Boot ON).
Already resized main partition to make space for Debian.
So currently there are the following partitions on disk:

100MB, FAT32, GPT (EFI System Partition)
16MB, Other, GPT (Reserved Partition)
300GB, NTFS, GPT (Data Partition) (Main C: disk visible under Win11)
168GB, free space, ready to have ~150GB for Debian and 16GB for swap
880MB, NTFS, GPT (Recovery Partition)

First try:
UEFI Boot (Secure Boot ON), Debian Trixie, Expert mode installation
During installation Debian does NOT see my disk at all (pendrive with
Debian Trixie is visible only)
Also during installation Debian says that "it seems there is another
system installed in Legacy Mode, am I  sure to force UEFI mode?" which
is not correct - Win11 is installed in UEFI mode (when I try to boot it
in Legacy Mode I get Windows Blue Screen Of Death)

Second try:
Secure Boot set to OFF.
Nothing changed during Trixie installation, so no device to install on.

Third try:
Boot in Legacy Mode (so Secure Boot is OFF).
Debian Trixie can see my laptop disk properly, so installation is successful, but...
It cannot see my Windows 11 installation when trying to install/configure/prepare GRUB.
At this step I decided to NOT install GRUB on my main disk to NOT loose access to my Windows 11 system.
(but Trixie says that it's possible to restore access by manual configuration of GRUB later on - I'm not sure...)

Main goal:
To have both current Windows 11 and new Debian Trixie available in GRUB
and properly bootable.

Rafal,

I could give better comments if I knew the hardware, particularly the GPU type. If I knew the model number I could look up YouTube to see if memory and/or NVMe were easily upgradeable, something I confirmed before purchasing my most recent laptop.

These are my thoughts, based on my past experiences:

1) Boot Debian live DVD and check hardware works (my laptop's fingerprint reader is not recognised, but that is the only item that does not work). Is it possible to use Nvidia proprietary drivers when using a live DVD? I would not expect so. I could not
get a decent idea of graphics performance for an Nvidia GPU without using Nvidia proprietary drivers .

2) If the NVMe was easily replaceable, I would simply put the Windows NVMe aside and install a new NVMe for Linux only. This is just my personal preference.

3) (as others have suggested) I would recommend installing Debian Bookworm. Once all was working well, if you truly had a need for Debian Testing (e.g. Debian Trixie), it is not hard to upgrade from Debian Bookworm to Debian Trixie. I expect Debian
Trixie will be released in around six months time, but until then Debian Trixie is "Testing" and hence could break too easily, like my current Debian Trixie installation did yesterday.

4) If you want to dual boot, then I do not see issues using Debian Bookworm to do this. I would boot into Debian (i.e. Grub), from where I select either Windows or Debian. If my primary use is Windows, then I edit grub to boot to Windows first. I have
not had issues with UEFI lately, I believe Debian handles this well.

5) I use Debian Bookworm as I like stability. Testing means things will break. Trixie is currently in testing. I rarely need the latest software. I sometimes use backports.
https://backports.debian.org/Instructions/
As a matter of Backports policy, packages in the stable-backports suite are taken from Debian testing; however, in rare cases such as security updates, packages are taken from unstable.

6) What GUI have you decided to use? While I use XFCE, I recommend KDE to people, particularly when moving from Windows to Linux. In fact KDE is so nice now, maybe I will start using KDE too? (I want both, and I do use both, but on different computers)

7) While I like and use Debian, I have recently learned about KDE Linux. https://community.kde.org/KDE_Linux

I hope my comments helps you when trying Linux/Debian.

George.

How to achieve this? :-)

Thank you,
Best Regards,
Rafal

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 29.12.2024 04:07, David Christensen wrote:

Make? Dell, below.  It is better to state this information at the top
of your message.

Model?

Sorry, I should start my previous email from those details.

Dell XPS 13 (the old model, 9370), Intel UHD Graphics 620

On my Dell machines with NVMe drives, I must change the Setup settings
for Debian to see NVMe drives:

Settings

   -> System Configuration
       -> SATA Operation -> AHCI

YEEES! That was the right solution in my case! Thank you very much!

That user support mailing list (debian-user) is amazing! I did not
expect so many answers on my question.
Each answer means someone gave me some of his time and attention for
free. Thank you ALL!
I will reply to all right now.

Back to the issue - so after that change, I boot in UEFI mode and
successfully installed Trixie. My NVMe disk was properly recognized and
GRUB also found my Windows boot, so... now I have GRUB with Trixie and
Windows 11 entries, BUT...

When I try to boot Windows 11 - after a while (Windows spinner at the
bottom) I have Blue Screen Of Death unfortunately.

Trixie boots normally, so I'm happy to see it on my laptop - fresh and
running :-)

But anyway... do you have an idea how to recover access to Windows system?

Turning Secure Boot ON/OFF nothing changes.
Still in UEFI boot mode of course.

It is best to take an image of the system drive before making
significant changes.  I recommend that you do so now, before making
further changes.

Even if Windows is finally lost, I accept that. No user data is lost (everything is already in the cloud), but at most some wasted time on configuration of Windows is lost ;-)

Regards,
Rafal

--- SoupGate-Win32 v1.05
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On 29.12.2024 06:02, David Wright wrote:

It doesn't need to. Switch to UEFI mode, and the ESP will
boot into Windows.

As you can see in my previous reply in this thread - now I've got both
Trixie and Windows in GRUB, but Windows does not boot (BSOD). Do you
know what to try to recover?

Regards,
Rafal

--- SoupGate-Win32 v1.05
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On 29.12.2024 03:40, Charles Curley wrote:

Is there any reason for trixie? Both trixie and its installer (d-i) are evolving and may not give you useful results. I suggest you use the
current Stable, Debian 12.8, bookworm.

Trixie has KDE Plasma 6. I'm OK with constantly evolving Debian testing.
I think as soon as Trixie become a new stable (in the next 6 months or
so) I will stay with stable.

I've got a few machines to play - all with Debian. My older Dell laptop
already has Debian bookworm and works fine. Another machine - very old
desktop - has two separate SSD disks - on one there is Debian bookworm,
on another Debian Trixie (also dual-boot). Also my main desktop PC (the
newest one among all of them) has now Debian Trixie.

I like testing, configuring etc. and even some problems with Trixie
after unfortunate update are usually a fun and challenge for me :-)

Those are not critical systems (like servers), so I'm fine even if one
of them is offline for a longer time.

Regards,
Rafal

--- SoupGate-Win32 v1.05
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On Sun, 29 Dec 2024 14:10:33 +0100
Rafał Lichwała <rafal@siliconet.pl> wrote:

Even if Windows is finally lost, I accept that. No user data is lost (everything is already in the cloud), but at most some wasted time on configuration of Windows is lost ;-)

It can be recovered, it may take a little work.

First, does the laptop have a UEFI menu available on a hotkey during
startup? You may need to do a bit of Net searching to find it. If so,
there will be a Windows entry, try it.

The UEFI firmware, what we used to call the BIOS, may have options for
enabling and disabling drives and setting the start priority. See if
any fiddling with these options will help.

Windows will not boot normally now, but it may be possible to boot it
into Safe Mode with a hotkey. If so, there ought to be a way of
restoring booting.

If Windows can be started, it will have a boot fixing option, again
search for details on the Net. Once you have Windows booting reliably,
it should be possible to get grub working again. In the worst case, you
can download the (huge) Windows installation image for your version, and
use its rescue facilities to fix booting.

I'd be more specific, but I haven't needed to deal with Windows fixing
for a while. and never on 11.

--
Joe

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This is a multi-part message in MIME format.
On 29.12.2024 07:21, George at Clug wrote:

4) If you want to dual boot, then I do not see issues using Debian Bookworm to do this. I would boot into Debian (i.e. Grub), from where I select either Windows or Debian. If my primary use is Windows, then I edit grub to boot to Windows first. I have

not had issues with UEFI lately, I believe Debian handles this well.

Arghh... dual-boot, not double-boot - sorry for a wrong email subject ;-)

Now I've got a similar config: UEFI boot with GRUB with both entries:
Trixie and Windows, but Windows cannot boot (BSOD). Do you have any
ideas how to proceed and recover Windows system?

5) I use Debian Bookworm as I like stability. Testing means things will break. Trixie is currently in testing. I rarely need the latest software. I sometimes use backports.
https://backports.debian.org/Instructions/
As a matter of Backports policy, packages in the stable-backports suite are taken from Debian testing; however, in rare cases such as security updates, packages are taken from unstable.

Hmmm... in case of a whole desktop system (KDE Plasma) I guess it is not
a matter of single package (or a few of them) from backports, but rather
a lot of them with inter-dependency. That's why I think it would be
better to start with Trixie if I want to have KDE Plasma 6, right?

6) What GUI have you decided to use? While I use XFCE, I recommend KDE to people, particularly when moving from Windows to Linux. In fact KDE is so nice now, maybe I will start using KDE too? (I want both, and I do use both, but on different computers)

Exactly. KDE Plasma 6 is awesome!

I hope my comments helps you when trying Linux/Debian.

Of course! Thank you for all comments and suggestions!

Regards,
Rafal


<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p><br>
</p>
<div class="moz-cite-prefix">On 29.12.2024 07:21, George at Clug
wrote:<span style="white-space: pre-wrap">
</span></div>
<blockquote type="cite"
cite="mid:8d15629faa71a3634448bf15b87525c7@go.goproject.info">
<pre wrap="" class="moz-quote-pre">4) If you want to dual boot, then I do not see issues using Debian Bookworm to do this. I would boot into Debian (i.e. Grub), from where I select either Windows or Debian. If my primary use is Windows, then I edit
grub to boot to Windows first. I have not had issues with UEFI lately, I believe Debian handles this well.</pre>
</blockquote>
<p>Arghh... dual-boot, not double-boot - sorry for a wrong email
subject ;-)</p>
<p>Now I've got a similar config: UEFI boot with GRUB with both
entries: Trixie and Windows, but Windows cannot boot (BSOD). Do
you have any ideas how to proceed and recover Windows system?</p>
<blockquote type="cite"
cite="mid:8d15629faa71a3634448bf15b87525c7@go.goproject.info">
<pre wrap="" class="moz-quote-pre">
5) I use Debian Bookworm as I like stability. Testing means things will break. Trixie is currently in testing. I rarely need the latest software. I sometimes use backports.
<a class="moz-txt-link-freetext" href="https://backports.debian.org/Instructions/">https://backports.debian.org/Instructions/</a>
As a matter of Backports policy, packages in the stable-backports suite are taken from Debian testing; however, in rare cases such as security updates, packages are taken from unstable. </pre>
</blockquote>
Hmmm... in case of a whole desktop system (KDE Plasma) I guess it is
not a matter of single package (or a few of them) from backports,
but rather a lot of them with inter-dependency. That's why I think
it would be better to start with Trixie if I want to have KDE Plasma
6, right?<span style="white-space: pre-wrap">
</span>
<blockquote type="cite"
cite="mid:8d15629faa71a3634448bf15b87525c7@go.goproject.info">
<pre wrap="" class="moz-quote-pre">6) What GUI have you decided to use? While I use XFCE, I recommend KDE to people, particularly when moving from Windows to Linux. In fact KDE is so nice now, maybe I will start using KDE too? (I want both, and I
do use both, but on different computers)</pre>
</blockquote>
<p>Exactly. KDE Plasma 6 is awesome!</p>
<blockquote type="cite"
cite="mid:8d15629faa71a3634448bf15b87525c7@go.goproject.info">
<pre wrap="" class="moz-quote-pre">I hope my comments helps you when trying Linux/Debian.</pre>
</blockquote>
<p>Of course! Thank you for all comments and suggestions!</p>
<p>Regards,<br>
Rafal</p>
<br>
</body>
</html>

--- SoupGate-Win32 v1.05
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Thank you Joe! I had to switch back in SATA settings from "AHCI" to
"Raid ON" again to restore Windows boot.

Regards,
Rafal


On 29.12.2024 15:39, Joe wrote:

It can be recovered, it may take a little work.

First, does the laptop have a UEFI menu available on a hotkey during
startup? You may need to do a bit of Net searching to find it. If so,
there will be a Windows entry, try it.

The UEFI firmware, what we used to call the BIOS, may have options for enabling and disabling drives and setting the start priority. See if
any fiddling with these options will help.

Windows will not boot normally now, but it may be possible to boot it
into Safe Mode with a hotkey. If so, there ought to be a way of
restoring booting.

If Windows can be started, it will have a boot fixing option, again
search for details on the Net. Once you have Windows booting reliably,
it should be possible to get grub working again. In the worst case, you
can download the (huge) Windows installation image for your version, and
use its rescue facilities to fix booting.

I'd be more specific, but I haven't needed to deal with Windows fixing
for a while. and never on 11.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Monday, 30-12-2024 at 01:34 Rafał Lichwała wrote:

On 29.12.2024 07:21, George at Clug wrote:

4) If you want to dual boot, then I do not see issues using Debian Bookworm to do this. I would boot into Debian (i.e. Grub), from where I select either Windows or Debian. If my primary use is Windows, then I edit grub to boot to Windows first. I

have not had issues with UEFI lately, I believe Debian handles this well.

Arghh... dual-boot, not double-boot - sorry for a wrong email subject ;-)

Now I've got a similar config: UEFI boot with GRUB with both entries:
Trixie and Windows, but Windows cannot boot (BSOD). Do you have any
ideas how to proceed and recover Windows system?

Sorry, I am not familiar with the Dell laptop. With an ASUS desktop in which I have four SSDs and use UEFI to run various Linux Distributions, I can go into BIOS and select to boot from each drive individually, or I can select one of the four UEFI
entries (at least that is what I believe I am doing), so I can select which ever Linux Distribution I which to use. I wonder if you can enter the laptop's boot system during the boot process and select which UEFI entry you want, e.g. Windows 11 or Debian
Trixie.

5) I use Debian Bookworm as I like stability. Testing means things will break. Trixie is currently in testing. I rarely need the latest software. I sometimes use backports.
https://backports.debian.org/Instructions/
As a matter of Backports policy, packages in the stable-backports suite are taken from Debian testing; however, in rare cases such as security updates, packages are taken from unstable.

Hmmm... in case of a whole desktop system (KDE Plasma) I guess it is not
a matter of single package (or a few of them) from backports, but rather
a lot of them with inter-dependency. That's why I think it would be
better to start with Trixie if I want to have KDE Plasma 6, right?

I think you are correct.

On the Computer I am currently using, I am running KDE Plasma and thought it was Plasma 6, but now that I check, it is still Plasma 5. So I would agree with you, if you want KDE Plasma 6, better to use Debian Trixie, particularly since this laptop is not
your primary computer which you need to be totally stable.

I am curious why you want KDE Plasma 6? I guess there is a reason. The only visual difference I have noticed between 5 and 6 is "Shutdown" button only gives fewer options, something that I do like. I really miss Windows 7's "power off" option that
actually powered off the computer when selected, and did not give you more menus, which gives you yet more menus before you can actually select to power off the computer.

I should remark, I am running Debian Trixie for a server. I needed some more up to date components for the service I am running on that server. So far all has been good, and like you have replied, it is not "mission critical".

6) What GUI have you decided to use? While I use XFCE, I recommend KDE to people, particularly when moving from Windows to Linux. In fact KDE is so nice now, maybe I will start using KDE too? (I want both, and I do use both, but on different

computers)

Exactly. KDE Plasma 6 is awesome!

+1

I hope my comments helps you when trying Linux/Debian.

Of course! Thank you for all comments and suggestions!

Thank you for replying, particularly since others gave you the info you really required.

I hope you find a way to easily dual boot both, if that is what you would like to do.

George.

Regards,
Rafal

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This is a multi-part message in MIME format.
On 29.12.2024 15:02, Andrii Kalashnykov wrote:

Try switching the SATA Operation mode back to what it was before you
switched it to AHCI mode, boot into Windows and do either [1] or [2].
Then switch the SATA Operation mode back to AHCI.

[1] https://support.thinkcritical.com/kb/articles/switch-windows-10-from-raid-ide-to-ahci

[2] https://superuser.com/questions/1355060/how-to-switch-from-ide-to-ahci-after-installing-windows-vista

Hope that helps.

Yes! Thank you Andrii! Trick [1] was needed and now I've got exactly
what was the goal: dual-boot with both Trixie and Windows bootable and available in GRUB.

EOT.

Thank you ALL guys! This mailing list is amazing... already mentioned
this?... ;-)

Regards,
Rafal

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p><br>
</p>
<div class="moz-cite-prefix">On 29.12.2024 15:02, Andrii Kalashnykov
wrote:<span style="white-space: pre-wrap">
</span></div>
<blockquote type="cite" cite="mid:DU2P195MB246714DCA1C35049DDE0A7A6BB082@DU2P195MB2467.EURP195.PROD.OUTLOOK.COM">
<pre wrap="" class="moz-quote-pre">Try switching the SATA Operation mode back to what it was before you
switched it to AHCI mode, boot into Windows and do either [1] or [2].
Then switch the SATA Operation mode back to AHCI.

[1]
<a class="moz-txt-link-freetext" href="https://support.thinkcritical.com/kb/articles/switch-windows-10-from-raid-ide-to-ahci">https://support.thinkcritical.com/kb/articles/switch-windows-10-from-raid-ide-to-ahci</a>

[2]
<a class="moz-txt-link-freetext" href="https://superuser.com/questions/1355060/how-to-switch-from-ide-to-ahci-after-installing-windows-vista">https://superuser.com/questions/1355060/how-to-switch-from-ide-to-ahci-after-installing-windows-vista</a>

Hope that helps.</pre>
</blockquote>
<p>Yes! Thank you Andrii! Trick [1] was needed and now I've got
exactly what was the goal: dual-boot with both Trixie and Windows
bootable and available in GRUB.</p>
<p>EOT.<br>
</p>
<p>Thank you ALL guys! This mailing list is amazing... already
mentioned this?... ;-)<br>
</p>
<p>Regards,<br>
Rafal</p>
</body>
</html>

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On 12/29/24 05:10, Rafał Lichwała wrote:

On 29.12.2024 04:07, David Christensen wrote:

Make? ... Model?

Sorry, I should start my previous email from those details.

Dell XPS 13 (the old model, 9370), Intel UHD Graphics 620

Thank you for the information. It helps us provide better answers.

On my Dell machines with NVMe drives, I must change the Setup settings
for Debian to see NVMe drives:

Settings

   -> System Configuration
       -> SATA Operation -> AHCI

YEEES! That was the right solution in my case! Thank you very much!

That user support mailing list (debian-user) is amazing! I did not
expect so many answers on my question.
Each answer means someone gave me some of his time and attention for
free. Thank you ALL!
I will reply to all right now.

Back to the issue - so after that change, I boot in UEFI mode and successfully installed Trixie. My NVMe disk was properly recognized and
GRUB also found my Windows boot, so... now I have GRUB with Trixie and Windows 11 entries, BUT...

When I try to boot Windows 11 - after a while (Windows spinner at the
bottom) I have Blue Screen Of Death unfortunately.

Trixie boots normally, so I'm happy to see it on my laptop - fresh and running :-)

But anyway... do you have an idea how to recover access to Windows system?

Turning Secure Boot ON/OFF nothing changes.
Still in UEFI boot mode of course.

On 12/29/24 09:47, Rafał Lichwała wrote:

I had to switch back in SATA settings from "AHCI" to "Raid ON" again
to restore Windows boot.

It's good that Windows is working again.


To simplify booting either Windows or Debian, I would try Andrii's
suggestion:


On 12/29/24 06:02, Andrii Kalashnykov wrote:

https://support.thinkcritical.com/kb/articles/switch-windows-10-from-raid-ide-to-ahci


David

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