Друзья, всем привет!
Прошу вашей помощи и сильно не пинать. После обновления перестала загружаться система. Установлена только Манджаро, BIOS.
Пытался восстановить загрузчик по этой иеструкции: wiki.manjaro.org/index.php/GRUB/Restore_the_GRUB_Bootloader/ru (и не только по этой).
Вот вывод всеъ команд из этой инструкции:
lsblk:

lsblk -o PATH,PTTYPE,PARTTYPE,FSTYPE,PARTTYPENAME                                            1 ✘ 
PATH       PTTYPE PARTTYPE FSTYPE   PARTTYPENAME
/dev/loop0                 squashfs 
/dev/loop1                 squashfs 
/dev/loop2                 squashfs 
/dev/loop3                 squashfs 
/dev/sda   dos                      
/dev/sda1  dos    0x83     ext4     Linux
/dev/sda2  dos    0x83     ext4     Linux
/dev/sdb   dos             iso9660  
/dev/sdb1  dos    0x0      iso9660  Empty
/dev/sdb2  dos    0xef     vfat     EFI (FAT-12/16/32)
/dev/sr0     

Дальше ввожу manjaro-chroot -a:

manjaro-chroot -a                                                                              ✔ 
grub-probe: error: cannot find a GRUB drive for /dev/sdb1.  Check your device.map.
grub-probe: error: cannot find a GRUB drive for /dev/sdb1.  Check your device.map.
==> Mounting (ManjaroLinux) [/dev/sda1]
 --> mount: [/mnt]
 --> mount: [/mnt/home]

mount /dev/sda /mnt:

mount /dev/sda /mnt
mount: /mnt: /dev/sda already mounted or mount point busy.
       dmesg(1) may have more information after failed mount system call.

pacman -Syu grub:

pacman -Syu grub
:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community is up to date
 multilib is up to date
warning: grub-2.12-3 is up to date -- reinstalling
:: Starting full system upgrade...
warning: plymouth: local (24.004.60-6) is newer than extra (22.02.122-16.3)
resolving dependencies...
looking for conflicting packages...

Packages (1) grub-2.12-3

Total Installed Size:  47.86 MiB
Net Upgrade Size:       0.00 MiB

:: Proceed with installation? [Y/n] y
(1/1) checking keys in keyring                                     [####################################] 100%
(1/1) checking package integrity                                   [####################################] 100%
(1/1) loading package files                                        [####################################] 100%
(1/1) checking for file conflicts                                  [####################################] 100%
(1/1) checking available disk space                                [####################################] 100%
:: Running pre-transaction hooks...
(1/1) Creating Timeshift snapshot before upgrade...
==> skipping timeshift-autosnap due skipRsyncAutosnap in /etc/timeshift-autosnap.conf set to TRUE.
:: Processing package changes...
(1/1) reinstalling grub                                            [####################################] 100%
:: Running post-transaction hooks...
(1/3) Arming ConditionNeedsUpdate...
(2/3) Refreshing PackageKit...
Error connecting: Could not connect: No such file or directory
error: command failed to execute correctly
(3/3) Updating the info directory file...

grub-install --force --target=i386-pc --recheck --boot-directory=/boot /dev/sda:

grub-install --force --target=i386-pc --recheck --boot-directory=/boot /dev/sda
Installing for i386-pc platform.
Installation finished. No error reported.

grub-mkconfig -o /boot/grub/grub.cfg:

grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found theme: /usr/share/grub/themes/manjaro/theme.txt
Found linux image: /boot/vmlinuz-6.7-x86_64
Found initrd image: /boot/intel-ucode.img /boot/initramfs-6.7-x86_64.img
Found initrd fallback image: /boot/initramfs-6.7-x86_64-fallback.img
Found linux image: /boot/vmlinuz-6.6-x86_64
Found initrd image: /boot/intel-ucode.img /boot/initramfs-6.6-x86_64.img
Found initrd fallback image: /boot/initramfs-6.6-x86_64-fallback.img
Found linux image: /boot/vmlinuz-6.5-x86_64
Found initrd image: /boot/intel-ucode.img /boot/initramfs-6.5-x86_64.img
Found initrd fallback image: /boot/initramfs-6.5-x86_64-fallback.img
Found linux image: /boot/vmlinuz-6.1-x86_64
Found initrd image: /boot/intel-ucode.img /boot/initramfs-6.1-x86_64.img
Found initrd fallback image: /boot/initramfs-6.1-x86_64-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.
ERROR: mkdir /var/lock/dmraid
grub-probe: error: cannot find a GRUB drive for /dev/sdb1.  Check your device.map.
grub-probe: error: cannot find a GRUB drive for /dev/sdb1.  Check your device.map.
Adding boot menu entry for UEFI Firmware Settings ...
Root filesystem isn't btrfs
If you think an error has occurred, please file a bug report at "https://github.com/Antynea/grub-btrfs"
Found memtest86+ image: /boot/memtest86+/memtest.bin
Found memtest86+ EFI image: /boot/memtest86+/memtest.efi

Что не так делал?
По ошибкам пробовал гуглить, но в основном все решения для EFI.