Grub installed on HDD(sdb) is not detecting my windows installed on SSD(sda) even os-prober | Arch Linux Community | Page 1

dense lotus Jul 29, 2023, 5:42 AM

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So basically my grub is not detecting my windows installed on another drive even when I have enabled os-prober and have mounted the drives like wiki says https://wiki.archlinux.org/title/GRUB#Detecting_other_operating_systems

any suggestionns on how to fix this?

GRUB

pine root Jul 29, 2023, 5:49 AM

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I switched to systemd-boot because of that

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grub can be problematic with dualbooting

dense lotus Jul 29, 2023, 5:49 AM

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dense lotus Jul 29, 2023, 5:50 AM

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pine root grub can be problematic with dualbooting

it was working fine the last time I used arch

sick urchin Jul 29, 2023, 5:50 AM

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try adding it to the config manually

dense lotus Jul 29, 2023, 5:50 AM

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check this one

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https://www.reddit.com/r/linuxmasterrace/comments/10lk7dn/grub_is_not_detecting_my_windows_10_installed_on/

r/linuxmasterrace - GRUB is not detecting my windows 10 installed o...

22 votes and 31 comments so far on Reddit

pine root Jul 29, 2023, 5:50 AM

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sick urchin try adding it to the config manually

pain.

dense lotus Jul 29, 2023, 5:50 AM

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sick urchin try adding it to the config manually

how

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I'm... linux newbie

pine root Jul 29, 2023, 5:51 AM

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just don't

sick urchin Jul 29, 2023, 5:51 AM

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ok

dense lotus Jul 29, 2023, 5:51 AM

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I don't want to undergo the pain of installing another bootloader and then seeing that not work as well

pine root Jul 29, 2023, 5:52 AM

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systemd-boot should automatically detect windows on the efi partition

dense lotus Jul 29, 2023, 5:53 AM

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okay, but is systemd-boot recommended?

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plus, is that fast?

sick urchin Jul 29, 2023, 5:53 AM

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do you have windows efi partition mounted tho

dense lotus Jul 29, 2023, 5:53 AM

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yep

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sick urchin Jul 29, 2023, 5:55 AM

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a

torn raven Jul 29, 2023, 8:40 AM

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pine root I switched to systemd-boot because of that

systemd-boot does it better? i had the same exact problem and I didn't know it can do that

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how do you setup the entry with systemd-boot?

pine root Jul 29, 2023, 8:40 AM

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torn raven systemd-boot does it better? i had the same exact problem and I didn't know it c...

yeah i didn't had to configure anything with systemd-boot

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it just automatically added everything

torn raven Jul 29, 2023, 8:44 AM

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yeah but what if you have two ESP's?

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how do you deal with it

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two ESP's on two seperate disks

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systemd-boot cannot launch binaries from partitions other than the ESP or the XBOOTLDR partition, but it can run an external script to do so.

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fuck

pine root Jul 29, 2023, 8:46 AM

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I just have a normal windows+arch dualboot. Arch is on an NVME and windows is on a SATA

torn raven Jul 29, 2023, 8:46 AM

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pine root I just have a normal windows+arch dualboot. Arch is on an NVME and windows is on...

seriously? but do you have one esp?

pine root Jul 29, 2023, 8:46 AM

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i don't really know what an esp is

torn raven Jul 29, 2023, 8:47 AM

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efi system partition

pine root Jul 29, 2023, 8:47 AM

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Oh

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I have only one

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on my nvme

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it hosts windows and arch

torn raven Jul 29, 2023, 8:47 AM

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so your bootloader for windows is on the nvme?

pine root Jul 29, 2023, 8:47 AM

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Yes

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and windows is on the sata

torn raven Jul 29, 2023, 8:47 AM

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but the rest of windows is on the sata?

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how the hell did you set that up

pine root Jul 29, 2023, 8:48 AM

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torn raven how the hell did you set that up

It just works so i don't mind

torn raven Jul 29, 2023, 8:48 AM

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lol ok then :)

pine root Jul 29, 2023, 8:48 AM

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I used a random custom windows build from a russian forum

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If it works then it works

torn raven Jul 29, 2023, 8:51 AM

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pine root I used a random custom windows build from a russian forum

hmmm

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that's a bit questionable

dense lotus Aug 17, 2023, 10:04 AM

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@mild coral

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come here

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see if this one helps

mild coral Aug 17, 2023, 10:05 AM

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I'm here

dense lotus Aug 17, 2023, 10:05 AM

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okay, now

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you have installed os-prober and enabled that in grub config or no?

mild coral Aug 17, 2023, 10:06 AM

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yes

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I have

dense lotus Aug 17, 2023, 10:06 AM

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like this

mild coral Aug 17, 2023, 10:07 AM

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not sure if false was in quotes

dense lotus Aug 17, 2023, 10:07 AM

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alright now, what command are you running to mount the disk that has windows C drive?

dense lotus Aug 17, 2023, 10:07 AM

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mild coral not sure if false was in quotes

go check

mild coral Aug 17, 2023, 10:07 AM

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it's not

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but the grub-mkconfig did state it was running os-prober

dense lotus Aug 17, 2023, 10:09 AM

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dense lotus like this

can you show me this thing and also the grub messages that you see when you sudo grub-mkconfig -o /boot.grub/grub.cfg

mild coral Aug 17, 2023, 10:10 AM

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https://discord.com/channels/399812551963049995/1141386657896087562

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it's in there

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as for the config file

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rn_image_picker_lib_temp_f0a6a74b-3360-45f8-8024-8ab8bf245b2a.jpg

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here ya go

dense lotus Aug 17, 2023, 10:12 AM

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okay

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now, are you using UEFI or legacy

#Grub installed on HDD(sdb) is not detecting my windows installed on SSD(sda) even os-prober