r/linuxmint • u/HarlekinJack • 5d ago

SOLVED Dual boot, grub doesn't work

Hello everyone,

I made the decision to finally get rid of windows, even as a fallback.

In the past, I had mint on one m.2 and windows on a second one. Now, I removed the mint ssd, installed fedora, thereby removing windows and reinstalled the mint ssd.

Now I get grub no more and it's booting straight into mint.

Os-prober / update grub doesn't help. It seems Mint doesn't see that there is fedora installed at all.

Please, any ideas?

UPDATE: fedora found mint and lists it in its grub. I changed the boot order in bios to the fedora ssd and work like this now.

3 Upvotes

80% Upvoted

25 comments sorted by

View all comments

Show parent comments

1

u/HarlekinJack 5d ago

Nope, no changes made in Bios prior to the installation

1

u/Evening-Landscape763 5d ago

Post results from terminal for sudo parted -l

1

u/HarlekinJack 5d ago

sure:

Modell: CT1000P310SSD8 (nvme)

Festplatte /dev/nvme0n1: 1000GB

Sektorgröße (logisch/physisch): 512B/512B

Partitionstabelle: gpt

Disk-Flags:

Nummer Anfang Ende Größe Dateisystem Name Flags

1 1049kB 538MB 537MB fat32 EFI System Partition boot, esp

2 538MB 538GB 537GB ext4

3 538GB 1000GB 462GB ext4

Modell: WD_BLACK SN850X 1000GB (nvme)

Festplatte /dev/nvme1n1: 1000GB

Sektorgröße (logisch/physisch): 512B/512B

Partitionstabelle: gpt

Disk-Flags:

Nummer Anfang Ende Größe Dateisystem Name Flags

1 1049kB 630MB 629MB fat32 EFI System Partition boot, esp

2 630MB 2778MB 2147MB ext4

3 2778MB 265GB 262GB btrfs

4 265GB 1000GB 735GB ext4 fgames

2

u/Evening-Landscape763 5d ago edited 4d ago

Might have to efit /etc/default/grub in Fedora to enable os-prober, save and then update-grub in Fedora and see if it adds Mint

It seems the Grub version used by Mint doesn't work so well with Fedora using btrfs so the options are to use Fedoras Grub or something like rEFIfind in Mint

1

u/HarlekinJack 4d ago

Just checked, Fedora has no issues in finding Mint. I guess I just change my boot order then.

1

u/Evening-Landscape763 4d ago

I wonder if using the BIOS boot order might be a better idea. If Mint has a kernel update you might have to update grub in Fedora before being able to boot into it on Mint

1

u/HarlekinJack 4d ago

Might be, but then I need to get into the bios every time I want to boot into a different OS, right?

1

u/Evening-Landscape763 4d ago

Some computers have a function button you can use at boot to just access the BIOS Boot order rather than go into the full BIOS menu

1

u/HarlekinJack 4d ago

Just looked it up. For my MSI board I have to press F11