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BTRFS error: (device dm-2): '@/home' is not a valid subvolume
BTRFS error: (device dm-2): subvol '@/home' does not match subvolid 257
No directory, logging in with HOME=/
Here is the output of inxi -Fxxxrz (I am ssh-ing in from another machine.):
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System: Kernel: 5.4.0-84-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Console: tty 1
dm: LightDM 1.30.0 Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04 focal
Machine: Type: Laptop System: LENOVO product: 243852U v: ThinkPad W530 serial: <filter> Chassis:
type: 10 serial: <filter>
Mobo: LENOVO model: 243852U v: Win8 Pro DPK TPG serial: <filter> UEFI: LENOVO
v: G5ET90WW (2.50 ) date: 12/21/2012
Battery: ID-1: BAT0 charge: 29.4 Wh condition: 79.8/93.2 Wh (86%) volts: 11.2/11.1
model: SANYO 45N1007 type: Li-ion serial: <filter> status: Discharging
CPU: Topology: Quad Core model: Intel Core i7-3740QM bits: 64 type: MT MCP arch: Ivy Bridge
rev: 9 L2 cache: 6144 KiB
flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 43099
Speed: 1198 MHz min/max: 1200/3700 MHz Core speeds (MHz): 1: 1197 2: 1198 3: 1197
4: 1197 5: 1198 6: 1198 7: 1198 8: 1199
Graphics: Device-1: Intel 3rd Gen Core processor Graphics vendor: Lenovo driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:0166
Device-2: NVIDIA GK107GLM [Quadro K1000M] vendor: Lenovo driver: nvidia v: 390.144
bus ID: 01:00.0 chip ID: 10de:0ffc
Display: server: X.org 1.20.11 driver: modesetting,nvidia unloaded: fbdev,nouveau,vesa
tty: 102x58
Message: Advanced graphics data unavailable in console. Try -G --display
Audio: Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:1e20
Device-2: NVIDIA GK107 HDMI Audio vendor: Lenovo driver: snd_hda_intel v: kernel
bus ID: 01:00.1 chip ID: 10de:0e1b
Sound Server: ALSA v: k5.4.0-84-generic
Network: Device-1: Intel 82579LM Gigabit Network vendor: Lenovo driver: e1000e v: 3.2.6-k
port: 6080 bus ID: 00:19.0 chip ID: 8086:1502
IF: enp0s25 state: up speed: 100 Mbps duplex: full mac: <filter>
Device-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi v: kernel
port: 5000 bus ID: 03:00.0 chip ID: 8086:0085
IF: wlp3s0 state: up mac: <filter>
Drives: Local Storage: total: 1.13 TiB used: 393.79 GiB (34.1%)
ID-1: /dev/sda vendor: Silicon Power model: SPCC Solid State Disk size: 223.57 GiB
speed: 6.0 Gb/s serial: <filter> rev: 4H scheme: GPT
ID-2: /dev/sdb vendor: HGST (Hitachi) model: HTS721010A9E630 size: 931.51 GiB
speed: 6.0 Gb/s rotation: 7200 rpm serial: <filter> rev: A3T0
Partition: ID-1: / size: 221.38 GiB used: 41.71 GiB (18.8%) fs: btrfs dev: /dev/dm-2
ID-2: /boot size: 704.5 MiB used: 207.7 MiB (29.5%) fs: ext4 dev: /dev/sda2
ID-3: swap-1 size: 976.0 MiB used: 0 KiB (0.0%) fs: swap dev: /dev/dm-1
Sensors: System Temperatures: cpu: 36.0 C mobo: 0.0 C
Fan Speeds (RPM): cpu: 2733
Repos: No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/agornostal-ulauncher-focal.list
1: deb http://ppa.launchpad.net/agornostal/ulauncher/ubuntu focal main
Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list
1: deb [signed-by=/usr/share/keyrings/brave-browser-archive-keyring.gpg arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
1: deb http://packages.linuxmint.com uma main upstream import backport #id:linuxmint_main
2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
6: deb http://archive.canonical.com/ubuntu/ focal partner
Info: Processes: 240 Uptime: 2h 47m Memory: 15.46 GiB used: 530.4 MiB (3.4%) Init: systemd
v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash v: 5.0.17
running in: tty 1 (SSH) inxi: 3.0.38
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# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
#/dev/mapper/vgmint-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda2 during installation
UUID=90fae9a7-09ea-4128-8f05-1bb239b1f59e /boot ext4 defaults 0 2
# /boot/efi was on /dev/sda1 during installation
UUID=E007-BAC8 /boot/efi vfat umask=0077 0 1
/dev/mapper/vgmint-swap_1 none swap sw 0 0
/dev/mapper/vgmint-root / btrfs rw,relatime,compress=lzo,ssd,space_cache,subvolid=256,subvol=/@,subvol=@ 0 0
### Added after attempted restore ###
/dev/mapper/vgmint-root /home btrfs rw,relatime,compress=lzo,ssd,space_cache,subvolid=257,subvol=/@/home,subvol=@/home 0 0
# 1 TB drive in Ultra Bay, trying with BTRFS on 28Aug21
UUID=12ca947f-ab57-4825-874c-e154a698d7f1 /mnt/data btrfs defaults 0 0
df -h:
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Filesystem Size Used Avail Use% Mounted on
udev 7.7G 0 7.7G 0% /dev
tmpfs 1.6G 1.6M 1.6G 1% /run
/dev/mapper/vgmint-root 222G 42G 179G 19% /
tmpfs 7.8G 8.0K 7.8G 1% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/sda2 705M 208M 446M 32% /boot
/dev/sda1 511M 5.3M 506M 2% /boot/efi
/dev/sdb 932G 352G 579G 38% /mnt/data
tmpfs 1.6G 4.0K 1.6G 1% /run/user/121
/dev/mapper/vgmint-root 222G 42G 179G 19% /run/timeshift/backup
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{
"backup_device_uuid" : "6156a3e8-965c-4e0b-b1bd-e16023bd473c",
"parent_device_uuid" : "PHAzzJ-szrv-YPkn-KJww-z8A2-3VpV-gNbsN8",
"do_first_run" : "false",
"btrfs_mode" : "true",
"include_btrfs_home_for_backup" : "false",
"include_btrfs_home_for_restore" : "false",
"stop_cron_emails" : "true",
"btrfs_use_qgroup" : "true",
"schedule_monthly" : "true",
"schedule_weekly" : "true",
"schedule_daily" : "true",
"schedule_hourly" : "false",
"schedule_boot" : "false",
"count_monthly" : "2",
"count_weekly" : "2",
"count_daily" : "5",
"count_hourly" : "6",
"count_boot" : "5",
"snapshot_size" : "12509797426",
"snapshot_count" : "682788",
"date_format" : "%Y-%m-%d %H:%M:%S",
"exclude" : [
"/home/akn/**",
"/root/**"
],
"exclude-apps" : [
]
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#!/bin/bash
/usr/share/ubuntu-system-adjustments/systemd/adjust-grub-title
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{
"created" : "1631626154",
"sys-uuid" : "6156a3e8-965c-4e0b-b1bd-e16023bd473c",
"sys-distro" : "LinuxMint 20.2 (uma)",
"app-version" : "20.11.1",
"file_count" : "0",
"tags" : "ondemand",
"comments" : "Before messing with nvidea prime/optimus",
"live" : "false",
"type" : "btrfs",
"subvolumes" : {
"@" : [
"@",
"363",
"5775540224",
"4792320",
"6156a3e8-965c-4e0b-b1bd-e16023bd473c"
]
}
If I have to start from scratch, I'm afraid I'll return to ext4....Right now I don't have oodles of time to learn BTRFS.
Thanks much in advance.