[SOLVED] grub not updating win11 + Kubuntu dual boot system (Solved)

[attila_66]

Hello All,


I have a notebook 2sdd 1 win11 and one kubuntu.
Once I tried Danielrichter grub customizer get an error .


Now I have error while upgrading linux image.
Error is like the error shown below.

Any suggestion to fix this??
Thanks



attila@attila-omen:~$ sudo apt upgrade
Not upgrading yet due to phasing:
libinput-bin libinput10

Summary:
Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 2
1 not fully installed or removed.
Space needed: 0 B / 452 GB available

Continue? [Y/n] y
Setting up linux-image-6.14.0-15-generic (6.14.0-15.15) ...
Processing triggers for linux-image-6.14.0-15-generic (6.14.0-15.15) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-6.14.0-15-generic
/etc/kernel/postinst.d/zz-update-grub:
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.14.0-15-generic
Found initrd image: /boot/initrd.img-6.14.0-15-generic
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 Boot Manager on /dev/nvme1n1p1@/efi/Microsoft/Boot/bootmgfw.efi
Found linux image: /boot/vmlinuz-6.14.0-15-generic
Found initrd image: /boot/initrd.img-6.14.0-15-generic
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Found memtest86+ 32bit EFI image: /boot/memtest86+ia32.efi
Found memtest86+ 64bit image: /boot/memtest86+x64.bin
Found memtest86+ 32bit image: /boot/memtest86+ia32.bin
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 Boot Manager on /dev/nvme1n1p1@/efi/Microsoft/Boot/bootmgfw.efi
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Found memtest86+ 32bit EFI image: /boot/memtest86+ia32.efi
Found memtest86+ 64bit image: /boot/memtest86+x64.bin
Found memtest86+ 32bit image: /boot/memtest86+ia32.bin
Adding boot menu entry for UEFI Firmware Settings ...
error: syntax error.
error: Incorrect command.
error: syntax error.
Syntax error at line 231
Syntax errors are detected in generated GRUB config file.
Ensure that there are no errors in /etc/default/grub
and /etc/grub.d/* files or please file a bug report with
/boot/grub/grub.cfg.new file attached.
run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 1
dpkg: error processing package linux-image-6.14.0-15-generic (--configure):
installed linux-image-6.14.0-15-generic package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
linux-image-6.14.0-15-generic
Error: Sub-process /usr/bin/dpkg returned an error code (1)
attila@attila-omen:~$

[claydoh]

Grub-customizer makes a backup of things in /etc/grub.d/backup/ with instructions to manually replace the modified files with the originals.

Also, isn't there a "revert" button?

[attila_66]

Grub-customizer makes a backup of things in /etc/grub.d/backup/ with instructions to manually replace the modified files with the originals.

Also, isn't there a "revert" button?

Thank you for reply

While trying to fix the problem I reinstalled Kubuntu. I think that deleted all backups. But problem is still same.

[attila_66]

Grub-customizer makes a backup of things in /etc/grub.d/backup/ with instructions to manually replace the modified files with the originals.

Also, isn't there a "revert" button?

While cheking once again used revert button and all worked ok.

Thank you so much for helping.