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update-grub (grub-probe) failed by unknown filesystem.

Hi,
I have trouble.

My distribution is a Manjaro.
The problem occur at update-grub.

$ LANG=C sudo update-grub
[sudo] password for aki:
Generating grub configuration file ...
Found Intel Microcode image
Found linux image: /boot/vmlinuz-319-x86_64
Found initrd image: /boot/initramfs-319-x86_64.img
Found initrd fallback image: /boot/initramfs-319-x86_64-fallback.img
Found linux image: /boot/vmlinuz-318-x86_64
Found initrd image: /boot/initramfs-318-x86_64.img
Found initrd fallback image: /boot/initramfs-318-x86_64-fallback.img
grub-probe: error: unknown filesystem.
Found Windows Boot Manager on /dev/sdc1@/efi/Microsoft/Boot/bootmgfw.efi
/usr/bin/grub-probe: error: unknown filesystem.
[1] 21407 exit 1 LANG=C sudo update-grub

I found it on Linux 3.19 kernel installation with Manjaro20150220,
but I think maybe It has already occurred at the time of update to 20150220
because current Linux version is different from Grub menu or print message's version.

disks are:
sda: 120GB SSD : GPT/UEFI Manjaro (automatic layout)
sdb: 3TB HDD : dm-crypt(plain)
sdc: 3TB HDD : GPT/UEFI Windows 7
sdc1:: UEFI
sdc2:: Microsoft Reserved
sdc3:: NTFS(Windows system)
sdd: 3TB HDD : dm-crypt(plain)
sde: 3TB HDD : dm-crypt(plain)
sdf: 3TB HDD : dm-crypt(plain)

sd[bdef] were GPT and sd[bdef]1 were btrfs at I found this problem,
so I think this trouble isn't come from plain dm-crypt disks.

How to fix it?

Regard.

Please post fdisk -l.
Which filesystems are used on the partitions?

Thank you for your reply. I'm sorry, I did not notice.

fdisk don't report right layout because all disks are GPT and all HDDs are over 2.2TB.

Result of gdisk:

Code:

$ LANG=C sudo gdisk -l /dev/sda

GPT fdisk (gdisk) version 0.8.10



Partition table scan:

  MBR: protective

  BSD: not present

  APM: not present

  GPT: present



Found valid GPT with protective MBR; using GPT.

Disk /dev/sda: 234441648 sectors, 111.8 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): B84394A3-E49C-4863-95A6-1E502250B2DC

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 234441614

Partitions will be aligned on 2048-sector boundaries

Total free space is 4973 sectors (2.4 MiB)



Number  Start (sector)    End (sector)  Size      Code  Name

  1            2048            6143  2.0 MiB    8300  BIOS_GRUB

  2            6144          210943  100.0 MiB  EF00  UEFI_SYSTEM

  3          210944          735231  256.0 MiB  8300  MANJARO_BOOT

  4          735232      234438655  111.4 GiB  8E00  MANJARO_LVM



$ LANG=C sudo gdisk -l /dev/sdc

GPT fdisk (gdisk) version 0.8.10



Partition table scan:

  MBR: protective

  BSD: not present

  APM: not present

  GPT: present



Found valid GPT with protective MBR; using GPT.

Disk /dev/sdc: 5860533168 sectors, 2.7 TiB

Logical sector size: 512 bytes

Disk identifier (GUID): 15E9D5C8-B276-4FB1-87F2-71A04BD728DA

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 5860533134

Partitions will be aligned on 2048-sector boundaries

Total free space is 2925 sectors (1.4 MiB)



Number  Start (sector)    End (sector)  Size      Code  Name

  1            2048          206847  100.0 MiB  EF00  EFI system partition

  2          206848          468991  128.0 MiB  0C01  Microsoft reserved ...

  3          468992      5860532223  2.7 TiB    0700  Basic data partition

sd[bdef] use whole disk plain dm-crypt.

I asked for the filesystem type!

I assume the filesystem for /boot is brtfs, which is not supported by the grub2.

I just right understood it.

sda1:ext3(BIOS_GRUB)
sda2:vfat(UEFI)
sda3:ext2(/boot)

Code:

$ LANG=C sudo mount | \grep sda >| /tmp/mount

/dev/sda3 on /boot type ext2 (rw,relatime)

/dev/sda2 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)

Code:

Error: /dev/sdb: unrecognised disk label

Error: /dev/sdd: unrecognised disk label

Error: /dev/sde: unrecognised disk label

Error: /dev/sdf: unrecognised disk label

Model: ATA Corsair Force LS (scsi)

Disk /dev/sda: 120GB

Sector size (logical/physical): 512B/512B

Partition Table: gpt

Disk Flags: 



Number  Start  End    Size    File system  Name          Flags

 1      1049kB  3146kB  2097kB  ext3        BIOS_GRUB

 2      3146kB  108MB  105MB  fat32        UEFI_SYSTEM  boot, esp

 3      108MB  376MB  268MB  ext2        MANJARO_BOOT  legacy_boot

 4      376MB  120GB  120GB                MANJARO_LVM  lvm







                                                                          

Model: ATA WDC WD30EZRX-00D (scsi)

Disk /dev/sdb: 3001GB

Sector size (logical/physical): 512B/4096B

Partition Table: unknown

Disk Flags: 



Model: ATA WDC WD30EZRX-00D (scsi)

Disk /dev/sdc: 3001GB

Sector size (logical/physical): 512B/4096B

Partition Table: gpt

Disk Flags: 



Number  Start  End    Size    File system  Name                          Flags

 1      1049kB  106MB  105MB  fat32        EFI system partition          boot, esp

 2      106MB  240MB  134MB                Microsoft reserved partition  msftres

 3      240MB  3001GB  3000GB  ntfs        Basic data partition          msftdata







                                                                          

Model: ATA WDC WD30EZRX-00D (scsi)

Disk /dev/sdd: 3001GB

Sector size (logical/physical): 512B/4096B

Partition Table: unknown

Disk Flags: 





                                                                          

Model: ATA WDC WD30EZRX-00D (scsi)

Disk /dev/sde: 3001GB

Sector size (logical/physical): 512B/4096B

Partition Table: unknown

Disk Flags: 





                                                                          

Model: ATA WDC WD30EZRX-00D (scsi)

Disk /dev/sdf: 3001GB

Sector size (logical/physical): 512B/4096B

Partition Table: unknown

Disk Flags:

I didn't update grub but currently boot up with UEFI/Grub2.

Then post /boot/grub/grub.conf.

/boot/grub/grub.cfg

Code:

#

# 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 ###

insmod part_gpt

insmod part_msdos

if [ -s $prefix/grubenv ]; then

  load_env

fi

if [ "${next_entry}" ] ; then

  set default="${next_entry}"

  set next_entry=

  save_env next_entry

  set boot_once=true

else

  set default="${saved_entry}"

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 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

}



set menu_color_normal=light-gray/black

set menu_color_highlight=green/black



if loadfont unicode ; then

  set gfxmode=auto

  load_video

  insmod gfxterm

fi

terminal_input console

terminal_output gfxterm

if [ x$feature_timeout_style = xy ] ; then

  set timeout_style=menu

  set timeout=5

# Fallback normal timeout code in case the timeout_style feature is

# unavailable.

else

  set timeout=5

fi

### END /etc/grub.d/00_header ###



### BEGIN /etc/grub.d/10_linux ###

menuentry 'Manjaro Linux' --class manjaro --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-751a1c1e-c76e-4500-96f2-6e76b938e5e5' {

        savedefault

        load_video

        set gfxpayload=keep

        insmod gzio

        insmod part_gpt 

        insmod ext2

        set root='hd0,gpt3'

        if [ x$feature_platform_search_hint = xy ]; then

          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  f3728ae9-1050-4d17-9d50-67dbfa084b6a

        else

          search --no-floppy --fs-uuid --set=root f3728ae9-1050-4d17-9d50-67dbfa084b6a

        fi

        echo        'Loading Linux 3.18.6-1-MANJARO x64 ...'

        linux        /vmlinuz-318-x86_64 root=UUID=751a1c1e-c76e-4500-96f2-6e76b938e5e5 rw cryptdevice=/dev/disk/by-uuid/5d6e69be-0088-43fd-8c27-a00acc872c99:cryptManjaro quiet splash nomodeset nokmsboot

        echo        'Loading initial ramdisk ...'

        initrd        /intel-ucode.img /initramfs-318-x86_64.img

}

submenu 'Advanced options for Manjaro Linux' $menuentry_id_option 'gnulinux-advanced-751a1c1e-c76e-4500-96f2-6e76b938e5e5' {

        menuentry 'Manjaro Linux (Kernel: 3.18.6-1-MANJARO x64)' --class manjaro --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.18.6-1-MANJARO x64-advanced-751a1c1e-c76e-4500-96f2-6e76b938e5e5' {

        savedefault

                load_video

                set gfxpayload=keep

                insmod gzio

                insmod part_gpt 

                insmod ext2

                set root='hd0,gpt3'

                if [ x$feature_platform_search_hint = xy ]; then

                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  f3728ae9-1050-4d17-9d50-67dbfa084b6a

                else

                  search --no-floppy --fs-uuid --set=root f3728ae9-1050-4d17-9d50-67dbfa084b6a

                fi

                echo        'Loading Linux 3.18.6-1-MANJARO x64 ...'

                linux        /vmlinuz-318-x86_64 root=UUID=751a1c1e-c76e-4500-96f2-6e76b938e5e5 rw cryptdevice=/dev/disk/by-uuid/5d6e69be-0088-43fd-8c27-a00acc872c99:cryptManjaro quiet splash nomodeset nokmsboot

                echo        'Loading initial ramdisk ...'

                initrd        /intel-ucode.img /initramfs-318-x86_64.img

        }

        menuentry 'Manjaro Linux (Kernel: 3.18.6-1-MANJARO x64 - fallback initramfs)' --class manjaro --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.18.6-1-MANJARO x64-fallback-751a1c1e-c76e-4500-96f2-6e76b938e5e5' {

                load_video

                set gfxpayload=keep

                insmod gzio

                insmod part_gpt 

                insmod ext2

                set root='hd0,gpt3'

                if [ x$feature_platform_search_hint = xy ]; then

                  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  f3728ae9-1050-4d17-9d50-67dbfa084b6a

                else

                  search --no-floppy --fs-uuid --set=root f3728ae9-1050-4d17-9d50-67dbfa084b6a

                fi

                echo        'Loading Linux 3.18.6-1-MANJARO x64 ...'

                linux        /vmlinuz-318-x86_64 root=UUID=751a1c1e-c76e-4500-96f2-6e76b938e5e5 rw cryptdevice=/dev/disk/by-uuid/5d6e69be-0088-43fd-8c27-a00acc872c99:cryptManjaro quiet splash nomodeset nokmsboot

                echo        'Loading initial ramdisk ...'

                initrd        /intel-ucode.img /initramfs-318-x86_64-fallback.img

        }

}



### END /etc/grub.d/10_linux ###



### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###



### BEGIN /etc/grub.d/30_os-prober ###

menuentry 'Windows Boot Manager (on /dev/sdc1)' --class windows --class os $menuentry_id_option 'osprober-efi-EA6F-D0A4' {

        savedefault

        insmod part_gpt 

        insmod fat

        set root='hd2,gpt1'

        if [ x$feature_platform_search_hint = xy ]; then

          search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt1 --hint-efi=hd2,gpt1 --hint-baremetal=ahci2,gpt1  EA6F-D0A4

        else

          search --no-floppy --fs-uuid --set=root EA6F-D0A4

        fi

        chainloader /efi/Microsoft/Boot/bootmgfw.efi

}

### END /etc/grub.d/30_os-prober ###



### 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 ###



### BEGIN /etc/grub.d/60_memtest86+ ###

if [ "${grub_platform}" == "pc" ]; then

    menuentry "Memory Tester (memtest86+)" --class memtest86 --class gnu --class tool {

        search --fs-uuid --no-floppy --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3  f3728ae9-1050-4d17-9d50-67dbfa084b6a

        linux16 /memtest86+/memtest.bin 

    }

fi

### END /etc/grub.d/60_memtest86+ ###

/etc/default/grub

Code:

GRUB_DEFAULT=saved

GRUB_TIMEOUT=5

GRUB_DISTRIBUTOR=Manjaro

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset nokmsboot"

GRUB_CMDLINE_LINUX="cryptdevice=/dev/disk/by-uuid/5d6e69be-0088-43fd-8c27-a00acc872c99:cryptManjaro"



# If you want to enable the save default function, uncomment the following

# line, and set GRUB_DEFAULT to saved.

GRUB_SAVEDEFAULT=true



# Preload both GPT and MBR modules so that they are not missed

GRUB_PRELOAD_MODULES="part_gpt part_msdos"



# Uncomment to enable Hidden Menu, and optionally hide the timeout count

#GRUB_HIDDEN_TIMEOUT=5

#GRUB_HIDDEN_TIMEOUT_QUIET=true



# Uncomment to use basic console

GRUB_TERMINAL_INPUT=console



# Uncomment to disable graphical terminal

#GRUB_TERMINAL_OUTPUT=console



# The resolution used on graphical terminal

# note that you can use only modes which your graphic card supports via VBE

# you can see them in real GRUB with the command `vbeinfo'

GRUB_GFXMODE=auto



# Uncomment to allow the kernel use the same resolution used by grub

GRUB_GFXPAYLOAD_LINUX=keep



# Uncomment if you want GRUB to pass to the Linux kernel the old parameter

# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"

#GRUB_DISABLE_LINUX_UUID=true



# Uncomment to disable generation of recovery mode menu entries

GRUB_DISABLE_RECOVERY=true



# Uncomment and set to the desired menu colors.  Used by normal and wallpaper

# modes only.  Entries specified as foreground/background.

GRUB_COLOR_NORMAL="light-gray/black"

GRUB_COLOR_HIGHLIGHT="green/black"



# Uncomment one of them for the gfx desired, a image background or a gfxtheme

GRUB_BACKGROUND="/usr/share/grub/background.png"

#GRUB_THEME="/path/to/gfxtheme"



# Uncomment to get a beep at GRUB start

#GRUB_INIT_TUNE="480 440 1"

Your partition layout makes no sense.