Unable to mount home partition

Hi there,

After a force shutdown I’ve stuck at emergency mode with no home partition. When I try to chroot with live usb I got mount: /mnt/home: special device /dev/disk/by-uuid/bfeb6b28-92e7-d601-b060-6a2892e7d601 does not exist. error.

      ~  inxi -Fza                                                        ✔ 
      Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
      parameters: BOOT_IMAGE=/boot/vmlinuz-x86_64 lang=en_US keytable=tr tz=UTC 
      misobasedir=manjaro misolabel=MANJARO_GNOME_2021 quiet 
      systemd.show_status=1 driver=free nouveau.modeset=1 i915.modeset=1 
      Desktop: GNOME 3.38.2 tk: GTK 3.24.24 wm: gnome-shell dm: GDM 
      Distro: Manjaro Linux 
      Type: Laptop System: LENOVO product: 20RBS1L200 v: ThinkPad E14 
      serial: <filter> Chassis: type: 10 serial: <filter> 
      Mobo: LENOVO model: 20RBS1L200 serial: <filter> UEFI: LENOVO 
      v: R16ET28W (1.14 ) date: 09/14/2020 
      ID-1: BAT0 charge: 20.1 Wh condition: 45.0/45.0 Wh (100%) volts: 11.3/11.1 
      model: LGC 5B10W138 type: Li-poly serial: <filter> status: Discharging 
      cycles: 18 
      Info: Quad Core model: Intel Core i5-10210U bits: 64 type: MT MCP 
      arch: Kaby Lake note: check family: 6 model-id: 8E (142) stepping: C (12) 
      microcode: DE L2 cache: 6 MiB 
      flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
      bogomips: 33615 
      Speed: 810 MHz min/max: 400/4200 MHz Core speeds (MHz): 1: 810 2: 844 
      3: 899 4: 895 5: 887 6: 895 7: 874 8: 847 
      Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
      Type: l1tf status: Not affected 
      Type: mds status: Not affected 
      Type: meltdown status: Not affected 
      Type: spec_store_bypass 
      mitigation: Speculative Store Bypass disabled via prctl and seccomp 
      Type: spectre_v1 
      mitigation: usercopy/swapgs barriers and __user pointer sanitization 
      Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB filling 
      Type: srbds mitigation: TSX disabled 
      Type: tsx_async_abort status: Not affected 
      Device-1: Intel UHD Graphics vendor: Lenovo driver: i915 v: kernel 
      bus ID: 00:02.0 chip ID: 8086:9b41 
      Device-2: IMC Networks Integrated Camera type: USB driver: uvcvideo 
      bus ID: 1-8:4 chip ID: 13d3:5415 
      Display: wayland server: X.org 1.20.10 compositor: gnome-shell 
      driver: i915 note: n/a (using device driver) - try sudo/root display ID: 0 
      resolution: <missing: xdpyinfo> 
      OpenGL: renderer: Mesa Intel UHD Graphics (CML GT2) v: 4.6 Mesa 20.3.1 
      direct render: Yes 
      Device-1: Intel vendor: Lenovo driver: snd_hda_intel v: kernel 
      alternate: snd_soc_skl,snd_sof_pci bus ID: 00:1f.3 chip ID: 8086:02c8 
      Sound Server: ALSA v: k5.9.16-1-MANJARO 
      Device-1: Intel Wireless-AC 9462 driver: iwlwifi v: kernel port: 3000 
      bus ID: 00:14.3 chip ID: 8086:02f0 
      IF: wlp0s20f3 state: up mac: <filter> 
      Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
      vendor: Lenovo driver: r8169 v: kernel port: 2000 bus ID: 04:00.0 
      chip ID: 10ec:8168 
      IF: enp4s0 state: down mac: <filter> 
      Local Storage: total: 491.85 GiB used: 182.8 MiB (0.0%) 
      SMART Message: Unable to run smartctl. Root privileges required. 
      ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: TeamGroup model: TM8FP6512G 
      size: 476.94 GiB block size: physical: 512 B logical: 512 B 
      speed: 31.6 Gb/s lanes: 4 serial: <filter> rev: V1.0 temp: 46.9 C 
      ID-2: /dev/sda maj-min: 8:0 type: USB vendor: SanDisk model: Cruzer Glide 
      size: 14.91 GiB block size: physical: 512 B logical: 512 B 
      serial: <filter> rev: 1.27 
      SMART Message: Unknown USB bridge. Flash drive/Unsupported enclosure? 
      ID-1: / raw size: N/A size: 11.59 GiB used: 182.8 MiB (1.5%) fs: overlay 
      source: ERR-102 
      Alert: No Swap data was found. 
      System Temperatures: cpu: 41.0 C mobo: 0.0 C 
      Fan Speeds (RPM): cpu: 0 
      Processes: 273 Uptime: 20m wakeups: 41491 Memory: 15.45 GiB 
      used: 2.31 GiB (15.0%) Init: systemd v: 247 Compilers: gcc: N/A Packages: 
      pacman: 1285 lib: 368 flatpak: 0 Shell: Zsh v: 5.8 
      running in: gnome-terminal inxi: 3.2.01 
        ~  lsblk                                                            ✔ 
    loop0         7:0    0  75.5M  1 loop /run/miso/sfs/livefs
    loop1         7:1    0 369.5M  1 loop /run/miso/sfs/mhwdfs
    loop2         7:2    0   1.6G  1 loop /run/miso/sfs/desktopfs
    loop3         7:3    0 667.8M  1 loop /run/miso/sfs/rootfs
    sda           8:0    1  14.9G  0 disk /run/miso/bootmnt
    ├─sda1        8:1    1   2.8G  0 part 
    └─sda2        8:2    1     4M  0 part 
    nvme0n1     259:0    0 476.9G  0 disk 
    ├─nvme0n1p1 259:4    0   100M  0 part 
    ├─nvme0n1p2 259:5    0    41G  0 part 
    └─nvme0n1p3 259:6    0 435.8G  0 part
        ~  blkid                                                            ✔ 
    /dev/nvme0n1p1: LABEL_FATBOOT="BOOT" LABEL="BOOT" UUID="3463-B740" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="3a576efd-1c07-4709-89e1-d07b90915006"
    /dev/nvme0n1p2: LABEL="root" UUID="c0ffb714-92e7-d601-c095-b61492e7d601" BLOCK_SIZE="2048" TYPE="ext4" PARTUUID="698e6dee-579c-4c00-9710-873616e1fc81"
    /dev/loop0: TYPE="squashfs"
    /dev/loop1: TYPE="squashfs"
    /dev/loop2: TYPE="squashfs"
    /dev/loop3: TYPE="squashfs"
    /dev/sda1: BLOCK_SIZE="2048" UUID="2021-01-03-11-22-21-00" LABEL="MANJARO_GNOME_2021" TYPE="iso9660"
    /dev/sda2: SEC_TYPE="msdos" LABEL_FATBOOT="MISO_EFI" LABEL="MISO_EFI" UUID="784C-16A2" BLOCK_SIZE="512" TYPE="vfat"
        ~  manjaro-chroot -a                                                ✔ 
    [sudo] password for manjaro: 
    grub-probe: error: cannot find a GRUB drive for /dev/sda1.  Check your device.map.
    grub-probe: error: cannot find a GRUB drive for /dev/sda1.  Check your device.map.
    ==> Mounting (ManjaroLinux) [/dev/nvme0n1p2]
     --> mount: [/mnt]
     --> mount: [/mnt/boot/efi]
     --> mount: [/mnt/home]
    mount: /mnt/home: special device /dev/disk/by-uuid/bfeb6b28-92e7-d601-b060-6a2892e7d601 does not exist.
    [manjaro-gnome /]#

Boot into live ISO, don’t mount any partition and then try to repair the partition nvme0n1p3 by

sudo fsck -p /dev/nvme0n1p3

fsck - ArchWiki

First of all, you are using Linux kernel 5.9 which is EOL and unsupported. Downgrade to 5.4 LTS or upgrade to 5.10.

sudo fsck -p /dev/nvme0n1p3                        ✔  3h 1m 26s  
[sudo] password for manjaro: 
fsck from util-linux 2.36.1
fsck.ext2: Bad magic number in super-block while trying to open /dev/nvme0n1p3
The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
    e2fsck -b 32768 <device>

I’ve tried to upgrade 5.10 but computer doesn’t boot into GUI mode. So I restored back with timeshift. I’ll try 5.4 if I resolve partition issue.

Changing kernel will not fix corrupted partition problem. Have you try to do what fsck has suggested in its output?

The issue has resolved after following command.

sudo e2fsck /dev/nvme0n1p3

Now I’m trying kernel downgrade.

1 Like

Boot live ISO again and determine the location of the backup superblocks by

sudo mke2fs -n

Post output here.

Edit: OK, glad to hear. :grin:

Thanks for help.:slightly_smiling_face: I have another issue too, computer doesn’t boot at first try. It frezzes on black screen without showing splash logo or freezes after login to my account with black screen with cursor. This is why I did force shutdown occasionally. Should I create new topic for this? (I’ve successfully downgraded to lts kernel btw.)

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.