When attempting to update grub, I run into the same issue which prevents the update process from going through:
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.19.0-29-generic
Found initrd image: /boot/initrd.img-5.19.0-29-generic
Found linux image: /boot/vmlinuz-5.19.0-28-generic
Found initrd image: /boot/initrd.img-5.19.0-28-generic
Found linux image: /boot/vmlinuz-5.19.0-26-generic
Found initrd image: /boot/initrd.img-5.19.0-26-generic
Memtest86+ needs a 16-bit boot, that is not available on EFI, exiting
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings ...
error: syntax error.
error: Incorrect command.
error: syntax error.
Syntax error at line 179
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.
I attempted to debug the file myself, but I was unable to determine the proper syntax for the specific error report. I also attempted to remove and reinstall grub, but any attempt to alter grub gives me the same error shown above. The aforementioned error also prevents me from updating the system or installing any new packages. Not sure what could have caused this behavior outside of not updating for a few days, since I have not made any manual changes to the grub files.
The below link lists the contents of the grub.cfg.new file, which hopefully someone can help shed some light on the issue:
https://pastebin.com/hcFxrwLD
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${initrdfail}" = 2 ]; then
set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
set next_entry="${prev_entry}"
set prev_entry=
save_env prev_entry
if [ "${next_entry}" ]; then
set initrdfail=2
fi
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function initrdfail {
if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
if [ -z "${initrdfail}" ]; then
set initrdfail=1
if [ -n "${boot_once}" ]; then
set prev_entry="${default}"
save_env prev_entry
fi
fi
save_env initrdfail
fi; fi
}
function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=hidden
set timeout=0
# Fallback hidden-timeout code in case the timeout_style feature is
# unavailable.
elif sleep --interruptible 0 ; then
set timeout=0
fi
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 0,0,0; then
clear
fi
color_normal=white/black
if [ -e ${prefix}/themes/kubuntu-logo/theme.txt ]; then
insmod png
theme=${prefix}/themes/kubuntu-logo/theme.txt
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if [ ${grub_platform} != pc ]; then
set linux_gfx_mode=keep
elif hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
linux /boot/vmlinuz-5.19.0-29-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro <other_params>... amdgpu.ppfeaturemask=0xffffffff
initrd /boot/initrd.img-5.19.0-29-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-abc7033c-9aa2-467f-96e8-c89db2323791' {
menuentry 'Ubuntu, with Linux 5.19.0-29-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.19.0-29-generic-advanced-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
echo 'Loading Linux 5.19.0-29-generic ...'
linux /boot/vmlinuz-5.19.0-29-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro <other_params>... amdgpu.ppfeaturemask=0xffffffff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.19.0-29-generic
}
menuentry 'Ubuntu, with Linux 5.19.0-29-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.19.0-29-generic-recovery-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
echo 'Loading Linux 5.19.0-29-generic ...'
linux /boot/vmlinuz-5.19.0-29-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro recovery nomodeset dis_ucode_ldr
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.19.0-29-generic
}
menuentry 'Ubuntu, with Linux 5.19.0-28-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.19.0-28-generic-advanced-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
echo 'Loading Linux 5.19.0-28-generic ...'
linux /boot/vmlinuz-5.19.0-28-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro <other_params>... amdgpu.ppfeaturemask=0xffffffff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.19.0-28-generic
}
menuentry 'Ubuntu, with Linux 5.19.0-28-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.19.0-28-generic-recovery-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
echo 'Loading Linux 5.19.0-28-generic ...'
linux /boot/vmlinuz-5.19.0-28-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro recovery nomodeset dis_ucode_ldr
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.19.0-28-generic
}
menuentry 'Ubuntu, with Linux 5.19.0-26-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.19.0-26-generic-advanced-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
echo 'Loading Linux 5.19.0-26-generic ...'
linux /boot/vmlinuz-5.19.0-26-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro <other_params>... amdgpu.ppfeaturemask=0xffffffff
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.19.0-26-generic
}
menuentry 'Ubuntu, with Linux 5.19.0-26-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.19.0-26-generic-recovery-abc7033c-9aa2-467f-96e8-c89db2323791' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 abc7033c-9aa2-467f-96e8-c89db2323791
else
search --no-floppy --fs-uuid --set=root abc7033c-9aa2-467f-96e8-c89db2323791
fi
echo 'Loading Linux 5.19.0-26-generic ...'
linux /boot/vmlinuz-5.19.0-26-generic root=UUID=abc7033c-9aa2-467f-96e8-c89db2323791 ro recovery nomodeset dis_ucode_ldr
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-5.19.0-26-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###
### BEGIN /etc/grub.d/35_fwupd ###
### END /etc/grub.d/35_fwupd ###
### BEGIN /etc/grub.d/40_custom ###
# 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.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg
fi
### END /etc/grub.d/41_custom ###
