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#1 2023-01-11 02:16:30

CraigAB69
Member
From: Brisbane
Registered: 2019-09-05
Posts: 19

[SOLVED]Dual Boot issue

Hi,

I think I made a mistake when I installed Windows on a second SSD (/sdb). I think that to get Grub to recognise Windows on the second SSD it must be UFI I think it is MBR. But I am not sure, can someone please let me know how I messed up.

I have even tried mounting the Windows partitions prior to running os-prober, grub-install and grub-mkconfig (complete command line below).

When os-prober runs it seems to detect Windows in /sdb:

11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/50mounted-tests on /dev/sda1
11/1/23 10:08 PM	50mounted-tests	debug: mounted using GRUB ntfs filesystem driver
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/05efi
11/1/23 10:08 PM	05efi	debug: /dev/sda1 is ntfs partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10freedos
11/1/23 10:08 PM	10freedos	debug: /dev/sda1 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10qnx
11/1/23 10:08 PM	10qnx	debug: /dev/sda1 is not a QNX4 partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20macosx
11/1/23 10:08 PM	macosx-prober	debug: /dev/sda1 is not an HFS+ partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20microsoft
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/30utility
11/1/23 10:08 PM	30utility	debug: /dev/sda1 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/40lsb
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/70hurd
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/80minix
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/83haiku
11/1/23 10:08 PM	83haiku	debug: /dev/sda1 is not a BeFS partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90linux-distro
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90solaris
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/efi
11/1/23 10:08 PM	systemd	var-lib-os\x2dprober-mount.mount: Deactivated successfully.
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdb1
11/1/23 10:08 PM	50mounted-tests	debug: mounted using GRUB ntfs filesystem driver
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/05efi
11/1/23 10:08 PM	05efi	debug: /dev/sdb1 is ntfs partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10freedos
11/1/23 10:08 PM	10freedos	debug: /dev/sdb1 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10qnx
11/1/23 10:08 PM	10qnx	debug: /dev/sdb1 is not a QNX4 partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20macosx
11/1/23 10:08 PM	macosx-prober	debug: /dev/sdb1 is not an HFS+ partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20microsoft
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/30utility
11/1/23 10:08 PM	30utility	debug: /dev/sdb1 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/40lsb
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/70hurd
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/80minix
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/83haiku
11/1/23 10:08 PM	83haiku	debug: /dev/sdb1 is not a BeFS partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90linux-distro
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90solaris
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/efi
11/1/23 10:08 PM	systemd	var-lib-os\x2dprober-mount.mount: Deactivated successfully.
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdb2
11/1/23 10:08 PM	50mounted-tests	debug: mounted using GRUB ntfs filesystem driver
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/05efi
11/1/23 10:08 PM	05efi	debug: /dev/sdb2 is ntfs partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10freedos
11/1/23 10:08 PM	10freedos	debug: /dev/sdb2 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10qnx
11/1/23 10:08 PM	10qnx	debug: /dev/sdb2 is not a QNX4 partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20macosx
11/1/23 10:08 PM	macosx-prober	debug: /dev/sdb2 is not an HFS+ partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20microsoft
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/30utility
11/1/23 10:08 PM	30utility	debug: /dev/sdb2 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/40lsb
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/70hurd
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/80minix
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/83haiku
11/1/23 10:08 PM	83haiku	debug: /dev/sdb2 is not a BeFS partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90linux-distro
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90solaris
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/efi
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/50mounted-tests on /dev/sdb3
11/1/23 10:08 PM	50mounted-tests	debug: mounted using GRUB ntfs filesystem driver
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/05efi
11/1/23 10:08 PM	05efi	debug: /dev/sdb3 is ntfs partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10freedos
11/1/23 10:08 PM	10freedos	debug: /dev/sdb3 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/10qnx
11/1/23 10:08 PM	10qnx	debug: /dev/sdb3 is not a QNX4 partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20macosx
11/1/23 10:08 PM	macosx-prober	debug: /dev/sdb3 is not an HFS+ partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/20microsoft
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/30utility
11/1/23 10:08 PM	30utility	debug: /dev/sdb3 is not a FAT partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/40lsb
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/70hurd
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/80minix
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/83haiku
11/1/23 10:08 PM	83haiku	debug: /dev/sdb3 is not a BeFS partition: exiting
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90linux-distro
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/90solaris
11/1/23 10:08 PM	50mounted-tests	debug: running subtest /usr/lib/os-probes/mounted/efi
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/05efi on mounted /dev/sdc1
11/1/23 10:08 PM	05efi	debug: /dev/sdc1 is a FAT32 partition
11/1/23 10:08 PM	05efi	debug: /dev/sdc1 partition scheme is dos
11/1/23 10:08 PM	05efi	debug: /dev/sdc1 partition type is 0xef
11/1/23 10:08 PM	05efi	debug: running subtest /usr/lib/os-probes/mounted/efi/10elilo
11/1/23 10:08 PM	05efi	debug: running subtest /usr/lib/os-probes/mounted/efi/20microsoft
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/10freedos on mounted /dev/sdc1
11/1/23 10:08 PM	10freedos	debug: /dev/sdc1 is a FAT32 partition
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/10qnx on mounted /dev/sdc1
11/1/23 10:08 PM	10qnx	debug: /dev/sdc1 is not a QNX4 partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/20macosx on mounted /dev/sdc1
11/1/23 10:08 PM	macosx-prober	debug: /dev/sdc1 is not an HFS+ partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/20microsoft on mounted /dev/sdc1
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/30utility on mounted /dev/sdc1
11/1/23 10:08 PM	30utility	debug: /dev/sdc1 is a FAT32 partition
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/40lsb on mounted /dev/sdc1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/70hurd on mounted /dev/sdc1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/80minix on mounted /dev/sdc1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/83haiku on mounted /dev/sdc1
11/1/23 10:08 PM	83haiku	debug: /dev/sdc1 is not a BeFS partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/90linux-distro on mounted /dev/sdc1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/90solaris on mounted /dev/sdc1
11/1/23 10:08 PM	os-prober	debug: /dev/sdc2: is active swap
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/05efi on mounted /dev/sdd1
11/1/23 10:08 PM	05efi	debug: /dev/sdd1 is fuseblk partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/10freedos on mounted /dev/sdd1
11/1/23 10:08 PM	10freedos	debug: /dev/sdd1 is not a FAT partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/10qnx on mounted /dev/sdd1
11/1/23 10:08 PM	10qnx	debug: /dev/sdd1 is not a QNX4 partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/20macosx on mounted /dev/sdd1
11/1/23 10:08 PM	macosx-prober	debug: /dev/sdd1 is not an HFS+ partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/20microsoft on mounted /dev/sdd1
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/30utility on mounted /dev/sdd1
11/1/23 10:08 PM	30utility	debug: /dev/sdd1 is not a FAT partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/40lsb on mounted /dev/sdd1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/70hurd on mounted /dev/sdd1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/80minix on mounted /dev/sdd1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/83haiku on mounted /dev/sdd1
11/1/23 10:08 PM	83haiku	debug: /dev/sdd1 is not a BeFS partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/90linux-distro on mounted /dev/sdd1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/90solaris on mounted /dev/sdd1
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/05efi on mounted /dev/sdd2
11/1/23 10:08 PM	05efi	debug: /dev/sdd2 is fuseblk partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/10freedos on mounted /dev/sdd2
11/1/23 10:08 PM	10freedos	debug: /dev/sdd2 is not a FAT partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/10qnx on mounted /dev/sdd2
11/1/23 10:08 PM	10qnx	debug: /dev/sdd2 is not a QNX4 partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/20macosx on mounted /dev/sdd2
11/1/23 10:08 PM	macosx-prober	debug: /dev/sdd2 is not an HFS+ partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/20microsoft on mounted /dev/sdd2
11/1/23 10:08 PM	20microsoft	debug: Skipping legacy bootloaders on UEFI system
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/30utility on mounted /dev/sdd2
11/1/23 10:08 PM	30utility	debug: /dev/sdd2 is not a FAT partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/40lsb on mounted /dev/sdd2
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/70hurd on mounted /dev/sdd2
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/80minix on mounted /dev/sdd2
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/83haiku on mounted /dev/sdd2
11/1/23 10:08 PM	83haiku	debug: /dev/sdd2 is not a BeFS partition: exiting
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/90linux-distro on mounted /dev/sdd2
11/1/23 10:08 PM	os-prober	debug: running /usr/lib/os-probes/mounted/90solaris on mounted /dev/sdd2
11/1/23 10:08 PM	sudo	pam_unix(sudo:session): session closed for user root


So I then I run:
# sudo grub-install --target=x86_64-efi --efi-directory=/efi --bootloader-id=GRUB --recheck

But then I don't see an output that it added Windows to the Grub menu after running:

# sudo grub-mkconfig -o /boot/grub/grub.cfg

Generating grub configuration file ...
Found linux image: /boot/vmlinuz-linux
Found initrd image: /boot/initramfs-linux.img
Found fallback initrd image(s) in /boot:  initramfs-linux-fallback.img
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Adding boot menu entry for UEFI Firmware Settings ...
done


Disk /dev/sda: 29.82 GiB, 32017047552 bytes, 62533296 sectors
Disk model: SAMSUNG SSD PM83
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x1ab98f13

Device     Boot Start      End  Sectors  Size Id Type
/dev/sda1        2048 52807735 52805688 25.2G  7 HPFS/NTFS/exFAT


Disk /dev/sdb: 223.57 GiB, 240057409536 bytes, 468862128 sectors
Disk model: KINGSTON SA400S3
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x83ff74e2

Device     Boot     Start       End   Sectors  Size Id Type
/dev/sdb1  *         2048    104447    102400   50M  7 HPFS/NTFS/exFAT
/dev/sdb2          104448 467770446 467665999  223G  7 HPFS/NTFS/exFAT
/dev/sdb3       467771392 468856831   1085440  530M 27 Hidden NTFS WinRE


Disk /dev/sdc: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 850 
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x0dbc80b7

Device     Boot    Start        End    Sectors   Size Id Type
/dev/sdc1           2048    2099199    2097152     1G ef EFI (FAT-12/16/32)
/dev/sdc2        2099200   10487807    8388608     4G 82 Linux swap / Solaris
/dev/sdc3       10487808 1953525167 1943037360 926.5G 83 Linux


Disk /dev/sdd: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: 2105            
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x934faf5f

Device     Boot      Start        End    Sectors   Size Id Type
/dev/sdd1             2048 2048002047 2048000000 976.6G  7 HPFS/NTFS/exFAT
/dev/sdd2       2048002048 3907024895 1859022848 886.5G  7 HPFS/NTFS/exFAT
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda      8:0    0  29.8G  0 disk 
└─sda1   8:1    0  25.2G  0 part 
sdb      8:16   0 223.6G  0 disk 
├─sdb1   8:17   0    50M  0 part 
├─sdb2   8:18   0   223G  0 part 
└─sdb3   8:19   0   530M  0 part 
sdc      8:32   0 931.5G  0 disk 
├─sdc1   8:33   0     1G  0 part /efi
├─sdc2   8:34   0     4G  0 part [SWAP]
└─sdc3   8:35   0 926.5G  0 part /
sdd      8:48   0   1.8T  0 disk 
├─sdd1   8:49   0 976.6G  0 part /mnt/Data
└─sdd2   8:50   0 886.5G  0 part /mnt/Forensic

lsblk from util-linux 2.38.1

Any help would be appreciated.
Regards,
Craig

Last edited by CraigAB69 (2023-01-11 09:36:19)

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#2 2023-01-11 06:45:38

jonno2002
Member
Registered: 2016-11-21
Posts: 784

Re: [SOLVED]Dual Boot issue

going by your fdisk output sdb is a DOS filesystem so yes its most likely MBR and grub is ignoring it:

05efi	debug: /dev/sdb1 is ntfs partition: exiting
20microsoft	debug: Skipping legacy bootloaders on UEFI system

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#3 2023-01-11 07:15:19

Head_on_a_Stick
Member
From: The Wirral
Registered: 2014-02-20
Posts: 8,842
Website

Re: [SOLVED]Dual Boot issue

If the disk has an MS-DOS ("MBR" type) partition table then Windows will be installed in non-UEFI mode and so the UEFI GRUB version will not be able to boot it.

https://wiki.archlinux.org/title/Dual_b … imitations

Jin, Jîyan, Azadî

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#4 2023-01-11 09:35:10

CraigAB69
Member
From: Brisbane
Registered: 2019-09-05
Posts: 19

Re: [SOLVED]Dual Boot issue

Thanks, guys, I appreciate your response.

I was hoping I was wrong and that I could blame M$, but when I noticed that I had Legacy set in the BIOS, I had that sinking feeling I screwed up.

Thanks again, guys.

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