Windows 10 not shown after dual boot

General system Newbie
1

My partitions on first hard disk are a total jumbled

At first to mention, EFI variables are not supported on my desktop system.

Two SATA hard disks in use. Other for use of Windows 10 Pro and other for Endeavour OS use.

MS Windows 10 Pro OS installed on first SATA hard disk.
Endeavour OS is installed on second SATA hard disk.

Have done things that are mentioned in address:

With other words checked that os-prober is installed and regenerated grub.cfg.

- installed os-prober with version 1.79-1
- installed grub-tools 1.6.6-1

After restarting PC, Windows is not visible, as boot alternative.

When running command sudo fdisk -l /dev/sda, it’s giving following information:

Disk /dev/sda: 1,82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
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: 0xafdc718b

Device Boot Start End Sectors Size Id Type
/dev/sda1 * 16064 104447 88384 43,2M 7 HPFS/NTFS/exFAT
/dev/sda2 104448 1041638534 1041534087 496,6G 7 HPFS/NTFS/exFAT
/dev/sda3 1045831500 3905979839 2860148340 1,3T f W95 Ext’d (LBA)
/dev/sda4 3905980416 3907025071 1044656 510,1M 7 HPFS/NTFS/exFAT
/dev/sda5 1045831563 3905979839 2860148277 1,3T 7 HPFS/NTFS/exFAT

Partition 3 does not start on physical sector boundary.
Partition 5 does not start on physical sector boundary.
Partition table entries are not in disk order.

Could somebody help me for getting things go right ?

2

Did you install EndevavourOS so that the Windows disk was unplugged?

Can you show the output of these commands (while both disks are plugged in):

sudo fdisk -l
lsblk -fm

and add 3 backticks ``` before and after the output like this:

```
output-of-the-commands
```
3

windows ( wind blows ? :wink: ) os will require Secureboot ( and others stuffs )

endevoursOs will required No Secureboot

can you check in your bios if you can have 2 profiles , one for windows , other for linux

4

Hello, I managed to install Endeavour OS when first hard disk was disconnected.
As I mentioned, I had little problems with connectors. I used glue for connecting data cable to the hard disk where I installed EOS (second hard disk). Checked that BIOS detected both SATA drives.
Downloaded again Endeavour iso file and used Rufus software for making installation media.
That is why, I started to think that there is missing things on USB stick (pendrive).

It was hectic saturday evening for me. I was thinking that now I missed everything from first hard disk with MS Windows 10 Pro OS.
I don’t know how many times I tried to install EOS, maybe 7 time. Tried with offline and online.
Then finally online installation went through.
Connected other hard disk and started up with both hard disks.
After booted up PC, there was only bootable alternative for Endeavour OS.

I can give and run these commands in CLI, but what do You mean with these so called “3 backticks” ?
Have to remember that I’m just beginner with these things. Sitting right front of my screens at local finnish time 19:55.

5

You can use the back tics or the tilde. ``` or ~~~

Edit: You put 3 before and after what you post so it shows up like this.

[ricklinux@arch ~]$ sudo fdisk -l
[sudo] password for ricklinux: 
Disk /dev/nvme0n1: 476.94 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: KBG40ZNV512G KIOXIA                     
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: gpt
Disk identifier: 0DFB1F83-7376-4EA5-9275-08493C92E8B5

Device             Start        End   Sectors   Size Type
/dev/nvme0n1p1      2048     206847    204800   100M EFI System
/dev/nvme0n1p2    206848     239615     32768    16M Microsoft reserved
/dev/nvme0n1p3    239616  500543487 500303872 238.6G Microsoft basic data
/dev/nvme0n1p4 500543488  501759999   1216512   594M Windows recovery environment
/dev/nvme0n1p5 501760000 1000215182 498455183 237.7G Linux filesystem
[ricklinux@arch ~]$
6

Hey, I found under acessories “Sreenshot”. I took smaller fonts in use in cli and took screenshot.
Is it possible to send image somehow directly here in this forum ?

I’m not sure if I can navigate with this OS to mine OneDrive and share image therefrom.

7

@manuel wanted you to post the output of the commands he posted and to put 3 back tics before and after what you post.

sudo fdisk -l
lsblk -fm
8

Just in case, did you add
GRUB_DISABLE_OS_PROBER=false
to your /etc/default/grub
and then regenerate grub.cfg

9

Yes, I did. Found from Discovery how to do that.

10 
fdisk: cannot open /dev/sda: Permission denied
fdisk: cannot open /dev/sdb: Permission denied
[boomer@boomer ~]$ sudo fdisk -l
Disk /dev/sda: 1,82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
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: 0xafdc718b

Device     Boot      Start        End    Sectors   Size Id Type
/dev/sda1  *         16064     104447      88384  43,2M  7 HPFS/NTFS/exFAT
/dev/sda2           104448 1041638534 1041534087 496,6G  7 HPFS/NTFS/exFAT
/dev/sda3       1045831500 3905979839 2860148340   1,3T  f W95 Ext'd (LBA)
/dev/sda4       3905980416 3907025071    1044656 510,1M  7 HPFS/NTFS/exFAT
/dev/sda5       1045831563 3905979839 2860148277   1,3T  7 HPFS/NTFS/exFAT

Partition 3 does not start on physical sector boundary.
Partition 5 does not start on physical sector boundary.
Partition table entries are not in disk order.


Disk /dev/sdb: 1,36 TiB, 1500301910016 bytes, 2930277168 sectors
Disk model: WDC WD15EARS-60M
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: 0x78d896f3

Device     Boot Start        End    Sectors  Size Id Type
/dev/sdb1  *     2048 2930272064 2930270017  1,4T 83 Linux

[boomer@boomer ~]$ lsblk -fm
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS SIZE OWNER GROUP MODE
sda 1,8T root disk brw-rw----
├─sda1 ntfs System Reserved 1846D85046D8306C 43,2M root disk brw-rw----
├─sda2 ntfs 7A82E64082E6008D 496,6G root disk brw-rw----
├─sda3 1K root disk brw-rw----
├─sda4 ntfs Recovery A20666EC0666C141 510,1M root disk brw-rw----
└─sda5 ntfs 0BA00A1A0BA00A1A 1,3T root disk brw-rw----
sdb 1,4T root disk brw-rw----
└─sdb1 ext4 1.0 53f4c82a-9de8-4523-b0a6-903a6cd75e2c 1,3T 1% / 1,4T root disk brw-rw----
sdc 0B root disk brw-rw----
sdd 0B root disk brw-rw----
sde 0B root disk brw-rw----
sdf 0B root disk brw-rw----
sr0 1024M root optical brw-rw----

Here You are. Maybe I’m amazed.

11 
fdisk: cannot open /dev/sda: Permission denied
fdisk: cannot open /dev/sdb: Permission denied
[boomer@boomer ~]$ sudo fdisk -l
Disk /dev/sda: 1,82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
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: 0xafdc718b

Device     Boot      Start        End    Sectors   Size Id Type
/dev/sda1  *         16064     104447      88384  43,2M  7 HPFS/NTFS/exFAT
/dev/sda2           104448 1041638534 1041534087 496,6G  7 HPFS/NTFS/exFAT
/dev/sda3       1045831500 3905979839 2860148340   1,3T  f W95 Ext'd (LBA)
/dev/sda4       3905980416 3907025071    1044656 510,1M  7 HPFS/NTFS/exFAT
/dev/sda5       1045831563 3905979839 2860148277   1,3T  7 HPFS/NTFS/exFAT

Partition 3 does not start on physical sector boundary.
Partition 5 does not start on physical sector boundary.
Partition table entries are not in disk order.


Disk /dev/sdb: 1,36 TiB, 1500301910016 bytes, 2930277168 sectors
Disk model: WDC WD15EARS-60M
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: 0x78d896f3

Device     Boot Start        End    Sectors  Size Id Type
/dev/sdb1  *     2048 2930272064 2930270017  1,4T 83 Linux

[boomer@boomer ~]$ lsblk -fm
NAME   FSTYPE FSVER LABEL           UUID                                 FSAVAIL FSUSE% MOUNTPOINTS   SIZE OWNER GROUP   MODE
sda                                                                                                   1,8T root  disk    brw-rw----
├─sda1 ntfs         System Reserved 1846D85046D8306C                                                 43,2M root  disk    brw-rw----
├─sda2 ntfs                         7A82E64082E6008D                                                496,6G root  disk    brw-rw----
├─sda3                                                                                                  1K root  disk    brw-rw----
├─sda4 ntfs         Recovery        A20666EC0666C141                                                510,1M root  disk    brw-rw----
└─sda5 ntfs                         0BA00A1A0BA00A1A                                                  1,3T root  disk    brw-rw----
sdb                                                                                                   1,4T root  disk    brw-rw----
└─sdb1 ext4   1.0                   53f4c82a-9de8-4523-b0a6-903a6cd75e2c    1,3T     1% /             1,4T root  disk    brw-rw----
sdc                                                                                                     0B root  disk    brw-rw----
sdd                                                                                                     0B root  disk    brw-rw----
sde                                                                                                     0B root  disk    brw-rw----
sdf                                                                                                     0B root  disk    brw-rw----
sr0                                                                                                  1024M root  optical brw-rw----

Here You are. Maybe I’m amazed. Is this correct ?

12

Did you use sudo?

sudo fdisk -l

Edit: Okay i see below…

13

Found link from here:

14

Okay I’ll let @manuel help you since i see you now have the output posted.

15

Ok, thank You. I have small difficulties to use foreign language, sorry.

16

This is little bit same situation for me compared to my earlier work when I was still working.
Asked customer who called me to take icon on desktop. It took long time to talk with customer.
Customer asked me that how is it possible to get an Windows icon on the desktop :slightly_smiling_face:

1 Like
17

So now both disks show up nicely. Great!

If you have enabled os-prober (in /etc/default/grub and installed package os-prober), the next thing to do is run commands

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

and it should show you the menu with both systems.

If it doesn’t show both systems in the boot menu, then please show the contents of file /etc/default/grub.

18

I will soon do that… having small brake. Wait please…

19

Situation now before restarting the system. Amazing, it looks like that this time it is going right way.
I’m gonna restart PC now.

[boomer@boomer ~]$ sudo grub-mkconfig -o /boot/grub.cfg
[sudo] password for boomer:
Generating grub configuration file …
Found theme: /boot/grub/themes/EndeavourOS/theme.txt
Found linux image: /boot/vmlinuz-linux
Found initrd image: /boot/intel-ucode.img /boot/initramfs-linux.img
Found fallback initrd image(s) in /boot: intel-ucode.img 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.
Found Windows 10 on /dev/sda1
Found Windows Recovery Environment on /dev/sda4
done

1 Like
20

Great!
Waiting for the result of reboot… :wink: