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#1 2023-09-02 14:36:53
- carlo2gaming
- Member
- Registered: 2022-10-10
- Posts: 6
[SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Sorry am newbie idk what i'm doing. I think I accidentally deleted the windows bootloader because in the boot options in bios I only see arch. Please help I don't want to reinstall arch again for the 5th time.
Here is my lsblk if that helps
[jj@arch-kde ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
loop0 7:0 0 4K 1 loop /var/lib/snapd/snap/bare/5
/var/lib/snapd/snap/bare/5
loop1 7:1 0 63.5M 1 loop /var/lib/snapd/snap/core20/2015
/var/lib/snapd/snap/core20/2015
loop2 7:2 0 73.9M 1 loop /var/lib/snapd/snap/core22/864
/var/lib/snapd/snap/core22/864
loop3 7:3 0 206.2M 1 loop /var/lib/snapd/snap/flutter/141
/var/lib/snapd/snap/flutter/141
loop4 7:4 0 276K 1 loop /var/lib/snapd/snap/g4music/79
/var/lib/snapd/snap/g4music/79
loop5 7:5 0 485.5M 1 loop /var/lib/snapd/snap/gnome-42-2204/126
/var/lib/snapd/snap/gnome-42-2204/126
loop6 7:6 0 91.7M 1 loop /var/lib/snapd/snap/gtk-common-themes/1535
/var/lib/snapd/snap/gtk-common-themes/1535
loop7 7:7 0 40.8M 1 loop /var/lib/snapd/snap/snapd/19993
/var/lib/snapd/snap/snapd/19993
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 260M 0 part /boot
├─sda2 8:2 0 16M 0 part
├─sda3 8:3 0 499.4G 0 part
├─sda4 8:4 0 641M 0 part
├─sda5 8:5 0 8G 0 part [SWAP]
└─sda6 8:6 0 423.2G 0 part /var/lib/snapd/snap
/Last edited by carlo2gaming (2023-09-03 06:43:32)
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#2 2023-09-02 14:41:48
- carlo2gaming
- Member
- Registered: 2022-10-10
- Posts: 6
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
This also if it helps
[jj@arch-kde ~]$ tree /boot #Needs tree package
/boot
├── efi
│ └── arch
│ └── grubx64.efi
├── grub
│ ├── fonts
│ │ └── unicode.pf2
│ ├── grub.cfg
│ ├── grubenv
│ ├── locale
│ │ ├── ast.mo
│ │ ├── ca.mo
│ │ ├── da.mo
│ │ ├── de.mo
│ │ ├── de@hebrew.mo
│ │ ├── de_CH.mo
│ │ ├── en@arabic.mo
│ │ ├── en@cyrillic.mo
│ │ ├── en@greek.mo
│ │ ├── en@hebrew.mo
│ │ ├── en@piglatin.mo
│ │ ├── en@quot.mo
│ │ ├── eo.mo
│ │ ├── es.mo
│ │ ├── fi.mo
│ │ ├── fr.mo
│ │ ├── gl.mo
│ │ ├── hr.mo
│ │ ├── hu.mo
│ │ ├── id.mo
│ │ ├── it.mo
│ │ ├── ja.mo
│ │ ├── ka.mo
│ │ ├── ko.mo
│ │ ├── lg.mo
│ │ ├── lt.mo
│ │ ├── nb.mo
│ │ ├── nl.mo
│ │ ├── pa.mo
│ │ ├── pl.mo
│ │ ├── pt.mo
│ │ ├── pt_BR.mo
│ │ ├── ro.mo
│ │ ├── ru.mo
│ │ ├── sl.mo
│ │ ├── sr.mo
│ │ ├── sv.mo
│ │ ├── tr.mo
│ │ ├── uk.mo
│ │ ├── vi.mo
│ │ ├── zh_CN.mo
│ │ └── zh_TW.mo
│ ├── themes
│ │ └── starfield
│ │ ├── COPYING.CC-BY-SA-3.0
│ │ ├── README
│ │ ├── blob_w.png
│ │ ├── boot_menu_c.png
│ │ ├── boot_menu_e.png
│ │ ├── boot_menu_n.png
│ │ ├── boot_menu_ne.png
│ │ ├── boot_menu_nw.png
│ │ ├── boot_menu_s.png
│ │ ├── boot_menu_se.png
│ │ ├── boot_menu_sw.png
│ │ ├── boot_menu_w.png
│ │ ├── dejavu_10.pf2
│ │ ├── dejavu_12.pf2
│ │ ├── dejavu_14.pf2
│ │ ├── dejavu_16.pf2
│ │ ├── dejavu_bold_14.pf2
│ │ ├── slider_c.png
│ │ ├── slider_n.png
│ │ ├── slider_s.png
│ │ ├── starfield.png
│ │ ├── terminal_box_c.png
│ │ ├── terminal_box_e.png
│ │ ├── terminal_box_n.png
│ │ ├── terminal_box_ne.png
│ │ ├── terminal_box_nw.png
│ │ ├── terminal_box_s.png
│ │ ├── terminal_box_se.png
│ │ ├── terminal_box_sw.png
│ │ ├── terminal_box_w.png
│ │ └── theme.txt
│ └── x86_64-efi
│ ├── acpi.mod
│ ├── adler32.mod
│ ├── affs.mod
│ ├── afs.mod
│ ├── afsplitter.mod
│ ├── ahci.mod
│ ├── all_video.mod
│ ├── aout.mod
│ ├── appleldr.mod
│ ├── archelp.mod
│ ├── at_keyboard.mod
│ ├── ata.mod
│ ├── backtrace.mod
│ ├── bfs.mod
│ ├── bitmap.mod
│ ├── bitmap_scale.mod
│ ├── bli.mod
│ ├── blocklist.mod
│ ├── boot.mod
│ ├── boottime.mod
│ ├── bsd.mod
│ ├── bswap_test.mod
│ ├── btrfs.mod
│ ├── bufio.mod
│ ├── cacheinfo.mod
│ ├── cat.mod
│ ├── cbfs.mod
│ ├── cbls.mod
│ ├── cbmemc.mod
│ ├── cbtable.mod
│ ├── cbtime.mod
│ ├── chain.mod
│ ├── cmdline_cat_test.mod
│ ├── cmp.mod
│ ├── cmp_test.mod
│ ├── command.lst
│ ├── configfile.mod
│ ├── core.efi
│ ├── cpio.mod
│ ├── cpio_be.mod
│ ├── cpuid.mod
│ ├── crc64.mod
│ ├── crypto.lst
│ ├── crypto.mod
│ ├── cryptodisk.mod
│ ├── cs5536.mod
│ ├── ctz_test.mod
│ ├── date.mod
│ ├── datehook.mod
│ ├── datetime.mod
│ ├── disk.mod
│ ├── diskfilter.mod
│ ├── div.mod
│ ├── div_test.mod
│ ├── dm_nv.mod
│ ├── echo.mod
│ ├── efi_gop.mod
│ ├── efi_uga.mod
│ ├── efifwsetup.mod
│ ├── efinet.mod
│ ├── efitextmode.mod
│ ├── ehci.mod
│ ├── elf.mod
│ ├── eval.mod
│ ├── exfat.mod
│ ├── exfctest.mod
│ ├── ext2.mod
│ ├── extcmd.mod
│ ├── f2fs.mod
│ ├── fat.mod
│ ├── file.mod
│ ├── fixvideo.mod
│ ├── font.mod
│ ├── fs.lst
│ ├── fshelp.mod
│ ├── functional_test.mod
│ ├── gcry_arcfour.mod
│ ├── gcry_blowfish.mod
│ ├── gcry_camellia.mod
│ ├── gcry_cast5.mod
│ ├── gcry_crc.mod
│ ├── gcry_des.mod
│ ├── gcry_dsa.mod
│ ├── gcry_idea.mod
│ ├── gcry_md4.mod
│ ├── gcry_md5.mod
│ ├── gcry_rfc2268.mod
│ ├── gcry_rijndael.mod
│ ├── gcry_rmd160.mod
│ ├── gcry_rsa.mod
│ ├── gcry_seed.mod
│ ├── gcry_serpent.mod
│ ├── gcry_sha1.mod
│ ├── gcry_sha256.mod
│ ├── gcry_sha512.mod
│ ├── gcry_tiger.mod
│ ├── gcry_twofish.mod
│ ├── gcry_whirlpool.mod
│ ├── geli.mod
│ ├── gettext.mod
│ ├── gfxmenu.mod
│ ├── gfxterm.mod
│ ├── gfxterm_background.mod
│ ├── gfxterm_menu.mod
│ ├── gptsync.mod
│ ├── grub.efi
│ ├── gzio.mod
│ ├── halt.mod
│ ├── hashsum.mod
│ ├── hdparm.mod
│ ├── hello.mod
│ ├── help.mod
│ ├── hexdump.mod
│ ├── hfs.mod
│ ├── hfsplus.mod
│ ├── hfspluscomp.mod
│ ├── http.mod
│ ├── iorw.mod
│ ├── iso9660.mod
│ ├── jfs.mod
│ ├── jpeg.mod
│ ├── json.mod
│ ├── keylayouts.mod
│ ├── keystatus.mod
│ ├── ldm.mod
│ ├── legacy_password_test.mod
│ ├── legacycfg.mod
│ ├── linux.mod
│ ├── linux16.mod
│ ├── loadbios.mod
│ ├── loadenv.mod
│ ├── loopback.mod
│ ├── ls.mod
│ ├── lsacpi.mod
│ ├── lsefi.mod
│ ├── lsefimmap.mod
│ ├── lsefisystab.mod
│ ├── lsmmap.mod
│ ├── lspci.mod
│ ├── lssal.mod
│ ├── luks.mod
│ ├── luks2.mod
│ ├── lvm.mod
│ ├── lzopio.mod
│ ├── macbless.mod
│ ├── macho.mod
│ ├── mdraid09.mod
│ ├── mdraid09_be.mod
│ ├── mdraid1x.mod
│ ├── memdisk.mod
│ ├── memrw.mod
│ ├── minicmd.mod
│ ├── minix.mod
│ ├── minix2.mod
│ ├── minix2_be.mod
│ ├── minix3.mod
│ ├── minix3_be.mod
│ ├── minix_be.mod
│ ├── mmap.mod
│ ├── moddep.lst
│ ├── modinfo.sh
│ ├── morse.mod
│ ├── mpi.mod
│ ├── msdospart.mod
│ ├── mul_test.mod
│ ├── multiboot.mod
│ ├── multiboot2.mod
│ ├── nativedisk.mod
│ ├── net.mod
│ ├── newc.mod
│ ├── nilfs2.mod
│ ├── normal.mod
│ ├── ntfs.mod
│ ├── ntfscomp.mod
│ ├── odc.mod
│ ├── offsetio.mod
│ ├── ohci.mod
│ ├── part_acorn.mod
│ ├── part_amiga.mod
│ ├── part_apple.mod
│ ├── part_bsd.mod
│ ├── part_dfly.mod
│ ├── part_dvh.mod
│ ├── part_gpt.mod
│ ├── part_msdos.mod
│ ├── part_plan.mod
│ ├── part_sun.mod
│ ├── part_sunpc.mod
│ ├── partmap.lst
│ ├── parttool.lst
│ ├── parttool.mod
│ ├── password.mod
│ ├── password_pbkdf2.mod
│ ├── pata.mod
│ ├── pbkdf2.mod
│ ├── pbkdf2_test.mod
│ ├── pcidump.mod
│ ├── pgp.mod
│ ├── plainmount.mod
│ ├── play.mod
│ ├── png.mod
│ ├── priority_queue.mod
│ ├── probe.mod
│ ├── procfs.mod
│ ├── progress.mod
│ ├── raid5rec.mod
│ ├── raid6rec.mod
│ ├── random.mod
│ ├── rdmsr.mod
│ ├── read.mod
│ ├── reboot.mod
│ ├── regexp.mod
│ ├── reiserfs.mod
│ ├── relocator.mod
│ ├── romfs.mod
│ ├── scsi.mod
│ ├── search.mod
│ ├── search_fs_file.mod
│ ├── search_fs_uuid.mod
│ ├── search_label.mod
│ ├── serial.mod
│ ├── setjmp.mod
│ ├── setjmp_test.mod
│ ├── setpci.mod
│ ├── sfs.mod
│ ├── shift_test.mod
│ ├── signature_test.mod
│ ├── sleep.mod
│ ├── sleep_test.mod
│ ├── smbios.mod
│ ├── spkmodem.mod
│ ├── squash4.mod
│ ├── strtoull_test.mod
│ ├── syslinuxcfg.mod
│ ├── tar.mod
│ ├── terminal.lst
│ ├── terminal.mod
│ ├── terminfo.mod
│ ├── test.mod
│ ├── test_blockarg.mod
│ ├── testload.mod
│ ├── testspeed.mod
│ ├── tftp.mod
│ ├── tga.mod
│ ├── time.mod
│ ├── tpm.mod
│ ├── tr.mod
│ ├── trig.mod
│ ├── true.mod
│ ├── udf.mod
│ ├── ufs1.mod
│ ├── ufs1_be.mod
│ ├── ufs2.mod
│ ├── uhci.mod
│ ├── usb.mod
│ ├── usb_keyboard.mod
│ ├── usbms.mod
│ ├── usbserial_common.mod
│ ├── usbserial_ftdi.mod
│ ├── usbserial_pl2303.mod
│ ├── usbserial_usbdebug.mod
│ ├── usbtest.mod
│ ├── video.lst
│ ├── video.mod
│ ├── video_bochs.mod
│ ├── video_cirrus.mod
│ ├── video_colors.mod
│ ├── video_fb.mod
│ ├── videoinfo.mod
│ ├── videotest.mod
│ ├── videotest_checksum.mod
│ ├── wrmsr.mod
│ ├── xfs.mod
│ ├── xnu.mod
│ ├── xnu_uuid.mod
│ ├── xnu_uuid_test.mod
│ ├── xzio.mod
│ ├── zfs.mod
│ ├── zfscrypt.mod
│ ├── zfsinfo.mod
│ └── zstd.mod
├── initramfs-linux-lts-fallback.img
├── initramfs-linux-lts.img
├── intel-ucode.img
└── vmlinuz-linux-ltsLast edited by carlo2gaming (2023-09-02 15:36:46)
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#3 2023-09-02 14:55:38
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 76,103
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Please use [code][/code] tags. Edit your posts in this regard.
Also don't multi-post. Edit your previous post if nobody has replied so far.
What's the output of
lsblk -fand what does os-prober actually report?
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#4 2023-09-02 15:41:27
- carlo2gaming
- Member
- Registered: 2022-10-10
- Posts: 6
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Sorry about that.
Output of lsblk -f:
[jj@arch-kde ~]$ lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
loop0 squash 4.0 0 100% /var/lib/snapd/snap/bare/5
/var/lib/snapd/
snap/bare/5
loop1 squash 4.0 0 100% /var/lib/snapd/snap/core20/2015
/var/lib/snapd/
snap/core20/201
5
loop2 squash 4.0 0 100% /var/lib/snapd/snap/core22/864
/var/lib/snapd/
snap/core22/864
loop3 squash 4.0 0 100% /var/lib/snapd/snap/flutter/141
/var/lib/snapd/
snap/flutter/14
1
loop5 squash 4.0 0 100% /var/lib/snapd/snap/gnome-42-2204/126
/var/lib/snapd/
snap/gnome-42-2
204/126
loop6 squash 4.0 0 100% /var/lib/snapd/snap/gtk-common-themes/1535
/var/lib/snapd/
snap/gtk-common
-themes/1535
loop7 squash 4.0 0 100% /var/lib/snapd/snap/snapd/19993
/var/lib/snapd/
snap/snapd/1999
3
sda
├─sda1 vfat FAT32 368C-5010 144.8M 43% /boot
├─sda2
├─sda3 ntfs 62BE2426BE23F169
├─sda4 ntfs D8E68C59E68C3A30
├─sda5 swap 1 5f66802f-2b3a-401e-9402-c19fb119d5db [SWAP]
└─sda6 ext4 1.0 7db501fd-31ec-4614-b619-d0d033828265 338G 14% /var/lib/snapd/snap
/I tried sudo os-prober but no output.
I also tried this but still no Windows
[jj@arch-kde ~]$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-linux-lts
Found initrd image: /boot/intel-ucode.img /boot/initramfs-linux-lts.img
Found fallback initrd image(s) in /boot: intel-ucode.img initramfs-linux-lts-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 ...
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#5 2023-09-02 15:49:52
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 76,103
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Don't copy and paste out of the pager, redirect the output into a file or text editor.
Running os-prober won't print anything bug likely log into the system journal.
Can you mount the ntfs partitions?
What happened to sda2?
I think I accidentally deleted the windows bootloader because in the boot options in bios I only see arch.
If this is btw true it's not arch that you'll have to re-install, but restore the windows efi.
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#6 2023-09-02 16:06:28
- carlo2gaming
- Member
- Registered: 2022-10-10
- Posts: 6
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
I can't mount it both
[jj@arch-kde ~]$ sudo mount -t ntfs-3g /dev/sda3 /mnt/windows_partition1
sudo mount -t ntfs-3g /dev/sda4 /mnt/windows_partition2
The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Falling back to read-only mount because the NTFS partition is in an
unsafe state. Please resume and shutdown Windows fully (no hibernation
or fast restarting.)
Could not mount read-write, trying read-onlyI don't know what's in sda2
Last edited by carlo2gaming (2023-09-02 16:06:43)
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#7 2023-09-02 16:28:25
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 76,103
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Once you can boot windows, see the 3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.
This is possibly also the cause of the windows efi loss.
It's not mouted read-only either?
ls /mnt/windows_partition*/Unfortunately this creates a hen-egg problem.
You need to boot (resume) windows to get the ntfs partitions into a clean state but you'll need the FS clean to mount it and get picked up by os-prober.
=> https://wiki.archlinux.org/title/Dual_b … _partition
You'll probably have to re-install grub afterwards.
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#8 2023-09-02 16:41:31
- carlo2gaming
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- Registered: 2022-10-10
- Posts: 6
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
What disable are you referring to?
[jj@arch-kde ~]$ ls /mnt/windows_partition*/
/mnt/windows_partition1/:
/mnt/windows_partition2/:Should I unmount these 2?
Last edited by carlo2gaming (2023-09-02 16:58:02)
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#9 2023-09-02 17:03:13
- seth
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- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 76,103
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Did you click the link? It explains what that is and how to disable it, but you'll have to be able to boot windows first.
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#10 2023-09-02 17:05:30
- carlo2gaming
- Member
- Registered: 2022-10-10
- Posts: 6
Re: [SOLVED] Grub can't detect Windows 10. Already tried os-prober.
Alr it worked. Thank you.
Last edited by carlo2gaming (2023-09-03 06:41:49)
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