Network vanished after reboot of new installation

Support
1

Just installed latest Manjaro via a USB stick on a brand new machine. All went smoothly with possible partitioning setup which I have not yet addressed. This is my third installation of Manjaro on various machines and I’ve been running it as my main desktop for a couple of years or so.

I spent some time setting up the desktop etc, connected via Remmina to a newly installed vino, and proceded to install and remove various apps. I always remove bluetooth, hexchat and pidgin. I’ve never had a need for them. This time I also removed bluez. After a while I rebooted the machine.

All seemed well until I tried to connect with Remmina, when it became obvious there was no connection to the new machine. There was no interface at all, not even a dhcp one. Just a blank panel through which I tried to add a new connection; and failed.

I’m guesing that the removal of bluez may be the cause, although for every warning it gave only “optional”.

a) Is this a reasonable diagnosis; b) if so, how can I get it back without an internet connection; c) if so, could bluez come with a better warning.

2

Please, check your log files with what command and syntax you removed bluez (if you don’t remember).

3

I removed it through the pamac gui.

4

I don’t say that this was the wrong way. Personally, I remove packages only using pacman, i.e.

sudo pacman -R {package}

or

sudo pacman -Rs {package}

to remove dependent and orphaned packages.

pamac works a bit different and you could end up easily in a recursive removal of packages that depend on the package which you want to remove, depending on your settings. Always check the list of packages to be removed before execution.

5

There were about half a dozen notifications all saying bluez was OPTIONALLY used by this/that. What I want to know is: is bluez NECESSARY for the internet connection and/or could it be the reason for the connection going missing.

And if so, what do I need to copy from the installation usb to make it right; or should I just cut my losses and reinstall from scratch?

6

Please post the output of inxi -Fazy.

7 
System:
  Kernel: 5.9.11-3-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.9-x86_64 
  root=UUID=6da9bbf6-c496-45cd-8bfe-f189370b2f9e rw quiet apparmor=1 
  security=apparmor resume=UUID=6b5358f6-061a-4a11-bab5-479aa944d947 
  udev.log_priority=3 
  Desktop: Xfce 4.14.3 tk: Gtk 3.24.23 info: xfce4-panel wm: xfwm4 
  dm: LightDM 1.30.0 Distro: Manjaro Linux 
Machine:
  Type: Desktop System: Gigabyte product: B450M DS3H v: N/A serial: <filter> 
  Mobo: Gigabyte model: B450M DS3H-CF v: x.x serial: <filter> 
  UEFI: American Megatrends v: F50 date: 11/27/2019 
CPU:
  Info: Quad Core model: AMD Ryzen 3 3200G with Radeon Vega Graphics bits: 64 
  type: MCP arch: Zen+ family: 17 (23) model-id: 18 (24) stepping: 1 
  microcode: 8108109 L2 cache: 2048 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm 
  bogomips: 28759 
  Speed: 1258 MHz min/max: 1400/3600 MHz boost: enabled Core speeds (MHz): 
  1: 1260 2: 1282 3: 1259 4: 1260 
  Vulnerabilities: Type: itlb_multihit status: Not affected 
  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: Full AMD retpoline, IBPB: conditional, STIBP: 
  disabled, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: AMD Picasso driver: amdgpu v: kernel bus ID: 07:00.0 
  chip ID: 1002:15d8 
  Display: x11 server: X.Org 1.20.10 driver: amdgpu,ati unloaded: modesetting 
  alternate: fbdev,vesa display ID: :0.0 screens: 1 
  Screen-1: 0 s-res: 1280x1024 s-dpi: 96 s-size: 338x270mm (13.3x10.6") 
  s-diag: 433mm (17") 
  Monitor-1: HDMI-A-0 res: 1280x1024 hz: 60 dpi: 96 
  size: 338x270mm (13.3x10.6") diag: 433mm (17") 
  OpenGL: renderer: AMD Radeon Vega 8 Graphics (RAVEN DRM 3.39.0 
  5.9.11-3-MANJARO LLVM 11.0.0) 
  v: 4.6 Mesa 20.2.3 direct render: Yes 
Audio:
  Device-1: AMD Raven/Raven2/Fenghuang HDMI/DP Audio driver: snd_hda_intel 
  v: kernel bus ID: 07:00.1 chip ID: 1002:15de 
  Device-2: AMD Family 17h HD Audio vendor: Gigabyte driver: snd_hda_intel 
  v: kernel bus ID: 07:00.6 chip ID: 1022:15e3 
  Sound Server: ALSA v: k5.9.11-3-MANJARO 
Network:
  Device-1: Realtek RTL8192EE PCIe Wireless Network Adapter driver: rtl8192ee 
  v: kernel port: e000 bus ID: 03:00.0 chip ID: 10ec:818b 
  IF: wlo1 state: down mac: <filter> 
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Gigabyte driver: r8169 v: kernel port: d000 bus ID: 04:00.0 
  chip ID: 10ec:8168 
  IF: enp4s0 state: down mac: <filter> 
Drives:
  Local Storage: total: 1.15 TiB used: 7.85 GiB (0.7%) 
  SMART Message: Required tool smartctl not installed. Check --recommends 
  ID-1: /dev/nvme0n1 vendor: A-Data model: SX8200PNP size: 238.47 GiB 
  block size: physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 
  serial: <filter> rev: 32B3T8EA scheme: GPT 
  ID-2: /dev/sda vendor: Seagate model: ST1000DM010-2EP102 size: 931.51 GiB 
  block size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s 
  rotation: 7200 rpm serial: <filter> rev: CC43 
  ID-3: /dev/sdb type: USB model: USB DISK 2.0 size: 7.47 GiB block size: 
  physical: 512 B logical: 512 B serial: <filter> rev: PMAP scheme: MBR 
Partition:
  ID-1: / raw size: 229.37 GiB size: 224.77 GiB (97.99%) used: 7.84 GiB (3.5%) 
  fs: ext4 dev: /dev/nvme0n1p2 
Swap:
  Kernel: swappiness: 60 (default) cache pressure: 100 (default) 
  ID-1: swap-1 type: partition size: 8.80 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme0n1p3 
Sensors:
  System Temperatures: cpu: 39.5 C mobo: N/A gpu: amdgpu temp: 39.0 C 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 194 Uptime: 11m Memory: 13.67 GiB used: 628.0 MiB (4.5%) 
  Init: systemd v: 246 Compilers: gcc: N/A Packages: pacman: 1155 lib: 351 
  Shell: Bash v: 5.0.18 running in: xfce4-terminal inxi: 3.1.08
8

It seems two network interfaces are detected, although both are down. Which one is that did work during installation but it doesn’t work now: the wired or the wireless one?

9

There was only one registered - wired.

10

First of all I would recommend you to upate using

sudo pacman-mirrors -f && sudo pacman -Syyu

Afterwards, reboot.

What network tools did you use, NetworkManager or something else?

Would be nice if you could share output of:

nmcli device
nmcli connection
ip link
systemctl status NetworkManager.service
11

A little bit awkward. There is no internet connection, not even a local one.

12

The day after the last reply here I reinstalled Manjaro on the new machine. Again I removed hexchat, pidgin and bluetooth but this time I left bluez installed. So far all is well.

I have long believed that bluetooth should be completely seperated from all other libs and, for preference, not installed in the first place. For those who do use bluetooth (about 40% internationally but what percentage of Manjaro?), a simple question during installation should suffice. Just a thought.