Yesterday I installed Linux for the first time in a partition I made in the same disk where Windows is installed. Everything worked fine, but upon reboot Windows was not in the list, so I did a few things I found here on ask Ubuntu.
I installed OS-prober and set GRUB_DISABLE_OS_PROBER to false in /etc/default/grub. Then ran update-grub but no luck.
The next thing I did was creating a menuentry. Mi 40_custom file looks like:
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "Windows 10" {
insmod part_gpt
insmod fat
search --no-floppy --fs-uuid --set 2AF7-AD85 (my /boot-efi uuid)
chainloader /efi/Microsoft/Boot/bootmgfw.efi
}
- This added a Windows 10 entry when booting but sadly when selecting it I have the error invalid signature.
I have no idea on what to do. I also tried Boot-Repair tool the log of which is at this link.
============================== Boot Info Summary ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector
404376632 of the same hard drive for core.img. core.img is at this
location and looks for (,gpt6)/boot/grub. It also embeds following
components:
modules
---------------------------------------------------------------------------
fshelp ext2 part_gpt biosdisk
---------------------------------------------------------------------------
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/10/11/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda2: __________________________________________________________________________
File system: vfat
Boot sector type: Windows 8/10/11/2012: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /efi/Boot/bootx64.efi /efi/Boot/fbx64.efi
/efi/Boot/mmx64.efi /efi/Microsoft/bootmgfw.efi
/efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi
/efi/ubuntu/shimx64.efi /efi/ubuntu/grub.cfg
/efi/Microsoft/Boot/bootmgfw.efi
/efi/Microsoft/Boot/bootmgr.efi
sda3: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
sda4: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/10/11/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files: /Windows/System32/winload.exe
sda5: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/10/11/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda6: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 22.04 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
/boot/grub/i386-pc/core.img
================================ 2 OS detected =================================
OS#1: El sistema operativo que se está usando - Ubuntu 22.04 LTS CurrentSession on sda6
OS#2: Windows 7 on sda4
================================ Host/Hardware =================================
CPU architecture: 64-bit
Video: CoffeeLake-S GT1 [UHD Graphics 610] from Intel Corporation
BOOT_IMAGE of the installed session in use:
/boot/vmlinuz-5.15.0-41-generic root=UUID=4abe2367-f313-4759-8ecb-1c9d2b1bf155 ro quiet splash vt.handoff=7
df -Th / : /dev/sda6 ext4 67G 15G 49G 24% /
===================================== UEFI =====================================
BIOS/UEFI firmware: 1.40(5.12) from American Megatrends Inc.
The firmware is EFI-compatible, but this installed-session is in Legacy/BIOS/CSM mode (not in EFI mode).
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, has-win, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda6 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, farbios
sda4 : is-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
sda2 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sda5 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, farbios
sda1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
Partitions info (2/3): _________________________________________________________
sda6 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda4 : isnotESP, part-has-no-fstab, no-nt, haswinload, no-recov-nor-hid, no-bmgr, notwinboot
sda2 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda5 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinboot
sda1 : isnotESP, part-has-no-fstab, no-nt, no-winload, recovery-or-hidden, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda6 : not--sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
sda4 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
sda2 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
sda5 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
sda1 : not--sepboot, no---boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, no--grub.d, sda
fdisk -l (filtered): ___________________________________________________________
Disk sda: 223.57 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: 273D7298-3818-4EA0-BDAF-3703DD323179
Start End Sectors Size Type
sda1 2048 1085439 1083392 529M Windows recovery environment
sda2 1085440 1288191 202752 99M EFI System
sda3 1288192 1320959 32768 16M Microsoft reserved
sda4 1320960 324161535 322840576 153.9G Microsoft basic data
sda5 467521536 468858879 1337344 653M Windows recovery environment
sda6 324161536 467521535 143360000 68.4G Linux filesystem
Partition table entries are not in disk order.
parted -lm (filtered): _________________________________________________________
sda:240GB:scsi:512:512:gpt:ATA KINGSTON SA400S3:pmbr_boot;
1:1049kB:556MB:555MB:ntfs:Basic data partition:hidden, diag;
2:556MB:660MB:104MB:fat32:EFI system partition:boot, esp;
3:660MB:676MB:16.8MB::Microsoft reserved partition:msftres;
4:676MB:166GB:165GB:ntfs:Basic data partition:msftdata;
6:166GB:239GB:73.4GB:ext4::;
5:239GB:240GB:685MB:ntfs::hidden, diag;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 ntfs 36D4F797D4F75797 7e1b17f4-b204-47ff-94c1-c1a16329f1c8 Recuperación Basic data partition
├─sda2 vfat 2AF7-AD85 c3e30674-fd02-4775-bdf7-9b4673941b2a EFI system partition
├─sda3 b515d3ba-6f9a-4a71-aade-c40e94e554e9 Microsoft reserved partition
├─sda4 ntfs 8A28FD7728FD631D 4172e039-0871-43f8-88b5-1ce2eca637e5 Basic data partition
├─sda5 ntfs C8BC825CBC824542 27c163a4-a400-4dc7-a458-d774d32ba26e
└─sda6 ext4 4abe2367-f313-4759-8ecb-1c9d2b1bf155 9e0d898d-b7ad-46c3-8cff-06ab04840013
Mount points (filtered): _______________________________________________________
Avail Use% Mounted on
/dev/sda1 519M 2% /mnt/boot-sav/sda1
/dev/sda4 59.5G 61% /mnt/boot-sav/sda4
/dev/sda5 89M 86% /mnt/boot-sav/sda5
/dev/sda6 48.7G 22% /
Mount options (filtered): ______________________________________________________
/dev/sda1 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda4 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda5 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
/dev/sda6 ext4 rw,relatime,errors=remount-ro
===================== sda2/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid 4abe2367-f313-4759-8ecb-1c9d2b1bf155 root hd0,gpt6
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda6/boot/grub/grub.cfg (filtered) ======================
Ubuntu 4abe2367-f313-4759-8ecb-1c9d2b1bf155
Ubuntu, with Linux 5.15.0-41-generic 4abe2367-f313-4759-8ecb-1c9d2b1bf155
Ubuntu, with Linux 5.15.0-25-generic 4abe2367-f313-4759-8ecb-1c9d2b1bf155
### END /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_uefi-firmware ###
Windows 10
========================== sda6/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda6 during installation
UUID=4abe2367-f313-4759-8ecb-1c9d2b1bf155 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda2 during installation
UUID=2AF7-AD85 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
======================= sda6/etc/default/grub (filtered) =======================
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_DISABLE_OS_PROBER=false
==================== sda6: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
200,844955444 = 215,655628800 boot/grub/grub.cfg 1
192,821826935 = 207,040860160 boot/grub/i386-pc/core.img 1
193,543525696 = 207,815778304 boot/vmlinuz 2
159,027889252 = 170,754895872 boot/vmlinuz-5.15.0-25-generic 2
193,543525696 = 207,815778304 boot/vmlinuz-5.15.0-41-generic 2
159,027889252 = 170,754895872 boot/vmlinuz.old 2
203,692836761 = 218,713518080 boot/initrd.img 1
194,098724365 = 208,411918336 boot/initrd.img-5.15.0-25-generic 1
203,692836761 = 218,713518080 boot/initrd.img-5.15.0-41-generic 1
194,098724365 = 208,411918336 boot/initrd.img.old 1
===================== sda6: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 18683 Apr 15 23:50 10_linux
-rwxr-xr-x 1 root root 43031 Apr 15 23:50 10_linux_zfs
-rwxr-xr-x 1 root root 14180 Apr 15 23:50 20_linux_xen
-rwxr-xr-x 1 root root 13369 Apr 15 23:50 30_os-prober
-rwxr-xr-x 1 root root 1372 Apr 15 23:50 30_uefi-firmware
-rwxr-xr-x 1 root root 700 Feb 19 14:21 35_fwupd
-rwxr-xr-x 1 root root 390 Jul 23 04:33 40_custom
-rwxr-xr-x 1 root root 215 Apr 15 23:50 41_custom
=========================== sda6/etc/grub.d/35_fwupd ===========================
#! /bin/sh
# SPDX-License-Identifier: LGPL-2.1+
set -e
[ -d ${pkgdatadir:?} ]
# shellcheck source=/dev/null
. "$pkgdatadir/grub-mkconfig_lib"
if [ -f /var/lib/fwupd/uefi_capsule.conf ] &&
ls /sys/firmware/efi/efivars/fwupd-*-0abba7dc-e516-4167-bbf5-4d9d1c739416 1>/dev/null 2>&1; then
. /var/lib/fwupd/uefi_capsule.conf
if [ "${EFI_PATH}" != "" ] && [ "${ESP}" != "" ]; then
echo "Adding Linux Firmware Updater entry" >&2
cat << EOF
menuentry 'Linux Firmware Updater' \$menuentry_id_option 'fwupd' {
EOF
${grub_probe:?}
prepare_grub_to_access_device '`${grub_probe} --target=device \${ESP}` | sed -e "s/^/\t/"'
cat << EOF
chainloader ${EFI_PATH}
}
EOF
fi
fi
========================== sda6/etc/grub.d/40_custom ===========================
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "Windows 10" {
insmod part_gpt
insmod fat
search --no-floppy --fs-uuid --set 2AF7-AD85
chainloader /efi/Microsoft/Boot/bootmgr.efi
}
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would reinstall the grub-efi of
sda6,
using the following options: sda2/boot/efi
Additional repair would be performed: unhide-bootmenu-10s use-standard-efi-file
Blockers in case of suggested repair: __________________________________________
WindowsEFI detected. Please disable BIOS-compatibility/CSM/Legacy mode in your UEFI firmware, and use this software from a live-CD (or live-USB) that is compatible with UEFI booting mode. For example, use a live-USB of Boot-Repair-Disk-64bit (www.sourceforge.net/p/boot-repair-cd), after making sure your BIOS is set up to boot USB in EFI mode. Please use this software in a live-session (live-CD or live-USB). This will enable this feature.
Final advice in case of suggested repair: ______________________________________
Please do not forget to make your UEFI firmware boot on the El sistema operativo que se está usando - Ubuntu 22.04 LTS CurrentSession entry (sda2/efi/****/grub****.efi (**** will be updated in the final message) file) !
If your computer reboots directly into Windows, try to change the boot order in your UEFI firmware.
If your UEFI firmware does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\****\grub****.efi (**** will be updated in the final message)
The boot of your PC is in BIOS-compatibility/CSM/Legacy mode. You may want to retry after changing it to UEFI mode.
If I recall correctly my BIOS is and has always been set to Legacy/UEFI. If I try to set UEFI boot mode, every reboot directs me to BIOS. In the boot priority I just see my disk, not ubuntu nor windows.
Thanks in advance
