Am 14.02.25 um 20:43 schrieb Matej Marko:

Hello,
I have actually on SSD SATA installed these distributions: Linux Mint,
Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version. Screenshots are from KDE neon.

There is no debian in the list of this distributions. This mailing list
is for debian.

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

Hi,

Matej Marko <[email protected]> wrote (Fri, 14 Feb 2025 20:43:56 +0100):

Hello,
I have actually on SSD SATA installed these distributions: Linux Mint, Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version.
Screenshots are from KDE neon.
Command sudo update-grub not work correct for me. It finds only Ubuntu Desktop, no other distributions.
All screenshots are here
https://imgur.com/a/crvLj26 <https://imgur.com/a/crvLj26>
I tried unsuccessfully add Lubuntu on sda5 partition to GRUB. You can see it on one screenshot.
These guides not helped me too.
https://www.umutsagir.com/solution-to-os-prober-not-finding-other-operating-systems-windows-linux/ <https://www.umutsagir.com/solution-to-os-prober-not-finding-other-operating-systems-windows-linux/>
https://www.omgubuntu.co.uk/2021/12/grub-doesnt-detect-windows-linux-distros-fix <https://www.omgubuntu.co.uk/2021/12/grub-doesnt-detect-windows-linux-distros-fix>
�
Dear developers. Can you please repair?

Was Debian installed on this system? (not clear from the above list)
If yes, which version exactly? (Debian 12 Bookworm, Debian testing, unstable ...)
If not, why is this relevant for this Debian mailinglist?


Holger


--
Holger Wansing <[email protected]>
PGP-Fingerprint: 496A C6E8 1442 4B34 8508 3529 59F1 87CA 156E B076

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

Am 14.02.25 um 20:43 schrieb Matej Marko:

Hello,
I have actually on SSD SATA installed these distributions: Linux Mint,
Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version. Screenshots are from KDE neon.
Command sudo update-grub not work correct for me. It finds only Ubuntu Desktop, no other distributions.

All screenshots are here
https://imgur.com/a/crvLj26 <https://imgur.com/a/crvLj26>

The last distribution you have installed has done grub-install. So sudo update-grub within this distribution will work.

All sudo update-grub from the other distribution will not have any
impact on the grub menue.

So I suppose the last installed distribution does not find the other ones.

What I would do if I were in this situation: run rescue from Ubuntu and
do a chroot to get in Ubuntu. Then run grub-install and see if the other distribution were found.

But the problem remains if that works: Only update-grub from last
distribution which did grub-install will have impact. So if you get a
new kernel from updates of one of the other distribution this change
will not get in the grub menue.

I do not know if there is a clean solution for this problem.

My solution for this situation was to have one disk for only one
distribution and having several USB-HDDs to run several different distributions.

Rolf

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

On 14/02/2025 at 21:18, Holger Wansing wrote:

Matej Marko <[email protected]> wrote (Fri, 14 Feb 2025 20:43:56 +0100):

Hello,
I have actually on SSD SATA installed these distributions: Linux Mint, Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version.
Screenshots are from KDE neon.
Command sudo update-grub not work correct for me. It finds only Ubuntu Desktop, no other distributions.
All screenshots are here
https://imgur.com/a/crvLj26 <https://imgur.com/a/crvLj26>

Can you describe the root/boot layout of each of these systems ?
The "Disks" screenshot shows that /dev/sda2 to /dev/sda6 have btrfs filesystems. I suspect that os-prober does not work well if the root
filesystem is on a btrfs subvolume. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=983107 for example.

Was Debian installed on this system? (not clear from the above list)
If yes, which version exactly? (Debian 12 Bookworm, Debian testing, unstable ...)
If not, why is this relevant for this Debian mailinglist?

Isn't the Debian installer team the upstream for os-prober ?

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

Hi,

Pascal Hambourg <[email protected]> wrote (Fri, 14 Feb 2025 23:01:31 +0100):

Was Debian installed on this system? (not clear from the above list)
If yes, which version exactly? (Debian 12 Bookworm, Debian testing, unstable ...)
If not, why is this relevant for this Debian mailinglist?

Isn't the Debian installer team the upstream for os-prober ?

Hmm, I was not really aware of this ...


Holger

--
Holger Wansing <[email protected]>
PGP-Fingerprint: 496A C6E8 1442 4B34 8508 3529 59F1 87CA 156E B076

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

This is a multi-part message in MIME format.
First things first

Debian Wiki - Grub:
apt-get install os-prober

Then edit /etc/default/grub and make sure you have a line like

GRUB_DISABLE_OS_PROBER=false

Finally run update-grub2

On February 14, 2025 1:00:19 PM Rolf Reintjes <[email protected]> wrote:

Am 14.02.25 um 20:43 schrieb Matej Marko:

Hello,
I have actually on SSD SATA installed these distributions: Linux Mint,
Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version.
Screenshots are from KDE neon.
Command sudo update-grub not work correct for me. It finds only Ubuntu
Desktop, no other distributions.

All screenshots are here
https://imgur.com/a/crvLj26 <https://imgur.com/a/crvLj26>

The last distribution you have installed has done grub-install. So sudo update-grub within this distribution will work.

All sudo update-grub from the other distribution will not have any
impact on the grub menue.

So I suppose the last installed distribution does not find the other ones.

What I would do if I were in this situation: run rescue from Ubuntu and
do a chroot to get in Ubuntu. Then run grub-install and see if the other distribution were found.

But the problem remains if that works: Only update-grub from last distribution which did grub-install will have impact. So if you get a
new kernel from updates of one of the other distribution this change
will not get in the grub menue.

I do not know if there is a clean solution for this problem.

My solution for this situation was to have one disk for only one
distribution and having several USB-HDDs to run several different distributions.

Rolf

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body>
<div dir="auto">
<div dir="auto">First things first&nbsp;</div><div dir="auto"><br></div><div dir="auto">Debian Wiki - Grub:</div><div dir="auto">apt-get install os-prober</div><div dir="auto"><br></div><div dir="auto">&nbsp; &nbsp; Then edit /etc/default/grub and make
sure you have a line like&nbsp;</div><div dir="auto"><br></div><div dir="auto">GRUB_DISABLE_OS_PROBER=false</div><div dir="auto"><br></div><div dir="auto">Finally run update-grub2</div><div dir='auto'><br></div>
<div id="aqm-original" style="color: black;">
<div dir="auto">On February 14, 2025 1:00:19 PM Rolf Reintjes &lt;[email protected]&gt; wrote:</div>
<div><br></div>
<blockquote type="cite" class="gmail_quote" style="margin: 0 0 0 0.75ex; border-left: 1px solid #808080; padding-left: 0.75ex;">
<div dir="auto">Am 14.02.25 um 20:43 schrieb Matej Marko:</div>
<blockquote type="cite" class="gmail_quote" style="margin: 0 0 0 0.75ex; border-left: 1px solid #0099CC; padding-left: 0.75ex;">
<div dir="auto">Hello,</div>
<div dir="auto">I have actually on SSD SATA installed these distributions: Linux Mint,</div>
<div dir="auto">Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version.</div>
<div dir="auto">Screenshots are from KDE neon.</div>
<div dir="auto">Command sudo update-grub not work correct for me. It finds only Ubuntu</div>
<div dir="auto">Desktop, no other distributions.</div>
<div dir="auto"><br></div>
<div dir="auto">All screenshots are here</div>
<div dir="auto">https://imgur.com/a/crvLj26 &lt;https://imgur.com/a/crvLj26&gt;</div>
</blockquote>
<div dir="auto"><br></div>
<div dir="auto">The last distribution you have installed has done grub-install. So sudo</div>
<div dir="auto">update-grub within this distribution will work.</div>
<div dir="auto"><br></div>
<div dir="auto">All sudo update-grub from the other distribution will not have any</div>
<div dir="auto">impact on the grub menue.</div>
<div dir="auto"><br></div>
<div dir="auto">So I suppose the last installed distribution does not find the other ones.</div>
<div dir="auto"><br></div>
<div dir="auto">What I would do if I were in this situation: run rescue from Ubuntu and</div>
<div dir="auto">do a chroot to get in Ubuntu. Then run grub-install and see if the other</div>
<div dir="auto">distribution were found.</div>
<div dir="auto"><br></div>
<div dir="auto">But the problem remains if that works: Only update-grub from last</div>
<div dir="auto">distribution which did grub-install will have impact. So if you get a</div>
<div dir="auto">new kernel from updates of one of the other distribution this change</div>
<div dir="auto">will not get in the grub menue.</div>
<div dir="auto"><br></div>
<div dir="auto">I do not know if there is a clean solution for this problem.</div>
<div dir="auto"><br></div>
<div dir="auto">My solution for this situation was to have one disk for only one</div>
<div dir="auto">distribution and having several USB-HDDs to run several different</div>
<div dir="auto">distributions.</div>
<div dir="auto"><br></div>
<div dir="auto">Rolf</div>
</blockquote>
</div><div dir="auto"><br></div>
</div></body>
</html>

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

(Please reply on list)

On 15/02/2025 at 00:03, Matej Marko wrote:

Yes. All root partitions are on BTRFS file system. It is possible, that
file system is main source of issues.

Can you provide more details about the btrfs layout for each system ?
Is there a subvolume for /, and is it the default subvolume ?

Probably not exist distribution agnostic based, fully official website
for os-prober only. I am not found in Google. Probably this Debian
website connect developers from all linux distributions.

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

On 15/02/2025 at 10:09, Matej Marko wrote:

No, I am not used subvolumes. It is not subvolumes, I think. I created
very simple partitions in distribution installer.

Be aware that some distribution installers may implicitly create
subvolumes. For example the Debian installer creates a subvolume
"@rootfs" for the root filesystem, but Debian's os-prober looks only
into the top-level subvolume (or the first mounted subvolume) when
probing GNU/Linux systems.

You can check subvolumes in an unmounted btrfs filesystem with:

# mount /dev/sda2 /mnt
# btrfs subvolume list /mnt
# btrfs subvolume get-default /mnt
# umount /mnt

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