How to identify log record errors?

Support
1

Hello friends from the Manjaro community.

Today, when I turned off the computer, I was able to notice that a message appeared on the terminal containing the message [Failed], however, I couldn’t read everything, precisely because the computer turned off right away.

Is there any way I can identify what this error is, and other errors (when turning on the machine), so I can try to fix them?

System:
  Kernel: 5.10.59-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64 
  root=UUID=4c99a061-31b7-445a-ad39-2ef99ad4a052 rw quiet udev.log_priority=3 
  Desktop: LXDE 0.10.1 info: lxpanel wm: Openbox 3.6.1 vt: 7 
  dm: LightDM 1.30.0 Distro: Manjaro Linux base: Arch Linux 
Machine:
  Type: Desktop Mobo: INTEL model: H81 serial: <filter> 
  UEFI: American Megatrends v: 4.6.5 date: 10/21/2020 
Battery:
  Message: No system battery data found. Is one present? 
Memory:
  RAM: total: 7.72 GiB used: 1.44 GiB (18.7%) 
  RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
CPU:
  Info: Dual Core model: Intel Pentium G3250 bits: 64 type: MCP arch: Haswell 
  family: 6 model-id: 3C (60) stepping: 3 microcode: 28 cache: L2: 3 MiB 
  bogomips: 12777 
  Speed: 3193 MHz min/max: 800/3200 MHz Core speeds (MHz): 1: 3193 2: 3187 
  Flags: abm acpi aperfmperf apic arat arch_perfmon bts clflush cmov 
  constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept 
  ept_ad erms est flexpriority flush_l1d fpu fsgsbase fxsr ht ibpb ibrs 
  invpcid invpcid_single lahf_lm lm mca mce md_clear mmx monitor movbe msr 
  mtrr nonstop_tsc nopl nx pae pat pbe pcid pclmulqdq pdcm pdpe1gb pebs pge 
  pln pni popcnt pse pse36 pti pts rdrand rdtscp rep_good sdbg sep ss ssbd sse 
  sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc tsc_adjust 
  tsc_deadline_timer vme vmx vnmi vpid xsave xsaveopt xtopology xtpr 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT disabled 
  Type: mds mitigation: Clear CPU buffers; SMT disabled 
  Type: meltdown mitigation: PTI 
  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: Full generic retpoline, IBPB: conditional, 
  IBRS_FW, STIBP: disabled, RSB filling 
  Type: srbds mitigation: Microcode 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: AMD Baffin [Radeon RX 460/560D / Pro 450/455/460/555/555X/560/560X] vendor: XFX Pine driver: amdgpu v: kernel bus-ID: 01:00.0 chip-ID: 1002:67ef 
  class-ID: 0300 
  Display: x11 server: X.Org 1.20.13 driver: loaded: amdgpu,ati 
  unloaded: modesetting alternate: fbdev,vesa display-ID: :0 screens: 1 
  Screen-1: 0 s-res: 1920x2160 s-dpi: 96 s-size: 506x570mm (19.9x22.4") 
  s-diag: 762mm (30") 
  Monitor-1: HDMI-A-0 res: 1920x1080 hz: 75 dpi: 82 
  size: 598x336mm (23.5x13.2") diag: 686mm (27") 
  Monitor-2: DVI-D-0 res: 1920x1080 hz: 60 dpi: 69 
  size: 708x398mm (27.9x15.7") diag: 812mm (32") 
  Message: Unable to show advanced data. Required tool glxinfo missing. 
Audio:
  Device-1: Intel 8 Series/C220 Series High Definition Audio 
  driver: snd_hda_intel v: kernel bus-ID: 00:1b.0 chip-ID: 8086:8c20 
  class-ID: 0403 
  Device-2: AMD Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X] 
  vendor: XFX Pine driver: snd_hda_intel v: kernel bus-ID: 01:00.1 
  chip-ID: 1002:aae0 class-ID: 0403 
  Sound Server-1: ALSA v: k5.10.59-1-MANJARO running: yes 
  Sound Server-2: JACK v: 1.9.19 running: no 
  Sound Server-3: PulseAudio v: 15.0 running: no 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  driver: r8169 v: kernel port: d000 bus-ID: 03:00.0 chip-ID: 10ec:8168 
  class-ID: 0200 
  IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
  IP v4: <filter> type: dynamic noprefixroute scope: global 
  broadcast: <filter> 
  IP v6: <filter> type: dynamic noprefixroute scope: global 
  IP v6: <filter> type: dynamic noprefixroute scope: global 
  IP v6: <filter> type: noprefixroute scope: link 
  WAN IP: <filter> 
Bluetooth:
  Message: No bluetooth data found. 
Logical:
  Message: No logical block device data found. 
RAID:
  Message: No RAID data found. 
Drives:
  Local Storage: total: 223.57 GiB used: 10.18 GiB (4.6%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/sda maj-min: 8:0 vendor: Kingston model: SA400S37240G 
  size: 223.57 GiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s 
  type: SSD serial: <filter> rev: 61K1 scheme: GPT 
  Message: No optical or floppy data found. 
Partition:
  ID-1: / raw-size: 223.27 GiB size: 218.77 GiB (97.98%) 
  used: 10.18 GiB (4.7%) fs: ext4 dev: /dev/sda2 maj-min: 8:2 label: N/A 
  uuid: 4c99a061-31b7-445a-ad39-2ef99ad4a052 
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%) 
  used: 300 KiB (0.1%) fs: vfat dev: /dev/sda1 maj-min: 8:1 label: N/A 
  uuid: 84A3-A666 
Swap:
  Alert: No swap data was found. 
Unmounted:
  Message: No unmounted partitions found. 
USB:
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Hub-2: 1-1:2 info: Intel Integrated Rate Matching Hub ports: 4 rev: 2.0 
  speed: 480 Mb/s chip-ID: 8087:8008 class-ID: 0900 
  Hub-3: 2-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Hub-4: 2-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0 
  speed: 480 Mb/s chip-ID: 8087:8000 class-ID: 0900 
  Hub-5: 3-0:1 info: Full speed (or root) Hub ports: 10 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Device-1: 3-9:2 info: Dell KB216 Wired Keyboard type: Keyboard,HID 
  driver: hid-generic,usbhid interfaces: 2 rev: 1.1 speed: 1.5 Mb/s 
  power: 100mA chip-ID: 413c:2113 class-ID: 0300 
  Device-2: 3-10:3 info: [Maxxter] Optical Gaming Mouse [Xtrem] 
  type: Mouse,Keyboard driver: hid-generic,usbhid interfaces: 2 rev: 1.1 
  speed: 1.5 Mb/s power: 100mA chip-ID: 18f8:0f97 class-ID: 0301 
  Hub-6: 4-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.0 speed: 5 Gb/s 
  chip-ID: 1d6b:0003 class-ID: 0900 
Sensors:
  System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: amdgpu temp: 42.0 C 
  Fan Speeds (RPM): N/A gpu: amdgpu fan: 1216 
Info:
  Processes: 157 Uptime: 45m wakeups: 0 Init: systemd v: 248 tool: systemctl 
  Compilers: gcc: 11.1.0 Packages: pacman: 657 lib: 154 Shell: Zsh v: 5.8 
  running-in: lxterminal inxi: 3.3.06
2

Try

journalctl --boot=-1

to see the log from the previous boot (-1)

Also see This Arch article about journalctl

:crossed_fingers:

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I’ve marked this answer as the solution to your question as it is by far the best answer you’ll get.

However, if you disagree with my choice, please feel free to take any other answer as the solution to your question or even remove the solution altogether: You are in control! (If you disagree with my choice, just send me a personal message and explain why I shouldn’t have done this or :heart: or :+1: if you agree)

:innocent:
P.S. In the future, please don’t forget to come back and click the 3 dots below the answer to mark a solution like this below the answer that helped you most:
Solution
so that the next person that has the exact same problem you just had will benefit from your post as well as your question will now be in the “solved” status.

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