Praveen Kumar's questions

I am using HP Pavilion. The wifi switches off and the Airplane mode is switched ON after a suspend. It prompts me to use the Hardware Switch to disable it. But that does not work.

From what I have observed, after this happens, even if I plug in an external wifi adapter, it refuses to work! I don't believe the issue has something to do with Wifi per se, but a deeper rooted problem

This is a common issue that I have looked over in the internet. None of the solutions have worked for me. List of solutions I've tried:

• /etc/init.d/network-manager restart
• service network-manager restart
• sudo systemctl restart network-manager.service
• rfkill unblock all
• sudo rfkill list

This produced:

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: yes

• nmcli nm sleep false which gave me Error: argument 'nm' not understood. Try passing --help instead.
• nmcli r wifi off && nmcli r wifi on
• nmcli general permissions

This gave me:

PERMISSION                                                        VALUE 
org.freedesktop.NetworkManager.enable-disable-network             yes   
org.freedesktop.NetworkManager.enable-disable-wifi                yes   
org.freedesktop.NetworkManager.enable-disable-wwan                yes   
org.freedesktop.NetworkManager.enable-disable-wimax               yes   
org.freedesktop.NetworkManager.sleep-wake                         no    
org.freedesktop.NetworkManager.network-control                    yes   
org.freedesktop.NetworkManager.wifi.share.protected               yes   
org.freedesktop.NetworkManager.wifi.share.open                    yes   
org.freedesktop.NetworkManager.settings.modify.system             yes   
org.freedesktop.NetworkManager.settings.modify.own                yes   
org.freedesktop.NetworkManager.settings.modify.hostname           auth  
org.freedesktop.NetworkManager.settings.modify.global-dns         auth  
org.freedesktop.NetworkManager.reload                             auth  
org.freedesktop.NetworkManager.checkpoint-rollback                auth  
org.freedesktop.NetworkManager.enable-disable-statistics          yes   
org.freedesktop.NetworkManager.enable-disable-connectivity-check  yes

• lspci -knn | grep Net -A2

This gave me:

08:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
    Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]
    Kernel driver in use: rtl8723be
    Kernel modules: rtl8723be

• lspci -knn | grep Ether -A2

This gave me:

09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)
    Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller [103c:8096]
    Kernel driver in use: r8169
    Kernel modules: r8169

• sudo rmmod r8169 && sudo modprobe r8169
• sudo lshw -class network

Output:

  *-network DISABLED        
       description: Wireless interface
       product: RTL8723BE PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:08:00.0
       logical name: wlo1
       version: 00
       serial: 70:77:81:bf:70:0d
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8723be driverversion=4.15.0-20-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:18 ioport:5000(size=256) memory:c6100000-c6103fff
  *-network
       description: Ethernet interface
       product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eno1
       version: 0a
       serial: 3c:a8:2a:bc:22:b3
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8107e-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:52 ioport:4000(size=256) memory:c6004000-c6004fff memory:c6000000-c6003fff
  *-network
       description: Ethernet interface
       physical id: 3
       logical name: enp0s20u1
       serial: 32:34:f6:b6:94:0e
       capabilities: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.143 link=yes multicast=yes

• sudo apt update
• sudo apt dist-upgrade
• lspci

Output:

00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Processor Thermal Subsystem (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.1 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #2 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 0a)
0a:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940M] (rev a2)

• dmesg | egrep 'wmi|rtl|hp'

Output:

[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
[    0.000000] hpet clockevent registered
[    0.036390] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.276037] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
[    0.276044] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[    0.278065] clocksource: Switched to clocksource hpet
[    0.674100] pciehp 0000:00:1c.1:pcie004: Slot #1 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+ Interlock- NoCompl+ LLActRep+
[    0.899214] rtc_cmos 00:01: alarms up to one month, 242 bytes nvram, hpet irqs
[    1.056592] wmi_bus wmi_bus-PNP0C14:00: WQ data block query control method not found
[    1.056595] wmi_bus wmi_bus-PNP0C14:00: WQ data block query control method not found
[    1.056598] wmi_bus wmi_bus-PNP0C14:00: WQ data block query control method not found
[    1.056600] wmi_bus wmi_bus-PNP0C14:00: WQ data block query control method not found
[    1.056823] wmi_bus wmi_bus-PNP0C14:01: WQBC data block query control method not found
[    1.056850] wmi_bus wmi_bus-PNP0C14:01: WQBJ data block query control method not found
[    1.406258] ata2.00: ATAPI: hp      DVDRW  DU8A6SH, DH61, max UDMA/133
[    1.445218] scsi 1:0:0:0: CD-ROM            hp       DVDRW  DU8A6SH   DH61 PQ: 0 ANSI: 5
[   21.801406] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[   21.819430] hp_accel: laptop model unknown, using default axes configuration
[   21.874652] rtlwifi: loading out-of-tree module taints kernel.
[   21.874720] rtlwifi: module verification failed: signature and/or required key missing - tainting kernel
[   21.893336] hp_wmi: query 0xd returned error 0x5
[   21.893897] rtl8723be: Using firmware rtlwifi/rtl8723befw_36.bin
[   21.901113] snd_hda_codec_realtek hdaudioC1D0:    hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
[   22.129284] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[   22.129600] rtlwifi: rtlwifi: wireless switch is on
[   22.253606] rtl8723be 0000:08:00.0 wlo1: renamed from wlan0
[   22.936466] psmouse serio1: synaptics: Your touchpad (PNP: SYN1ef2 SYN1e00 SYN0002 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to [email protected].
[   23.014105] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x12e800/0x0, board id: 2997, fw id: 1665536
[  137.112311] hp_wmi: bad event status 0x5
[ 4818.272734] pciehp 0000:00:1c.1:pcie004: Slot(1): Link Down
[ 4818.274010] rtlwifi: rtlwifi: wireless switch is on
[ 4862.465069] pciehp 0000:00:1c.1:pcie004: Slot(1): Link Down
[ 4862.466258] rtlwifi: rtlwifi: wireless switch is on
[ 7062.841235] pciehp 0000:00:1c.1:pcie004: Slot(1): Link Down
[ 7062.842172] rtlwifi: rtlwifi: wireless switch is on

• I also tried re-installing the drivers :(

"No wifi adapter found" in settings - screenshot

I have attached the output of this command wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && \ chmod +x wireless-info && \ ./wireless-info

https://www12.zippyshare.com/v/gBZnOz7G/file.html

This has become increasingly difficult to work with. Any help is appreciated. Thanks in advance :)

I am using Ubuntu 18.04 on a HP laptop dual booted with Windows 10, with 40 GB of disk space for Ubuntu and a 20 GB of SWAP area since I have an 8 GB of RAM. I am using a HDD. Out of the 40 GB, 32.5 GB is still available and free. I have freshly installed the OS a few weeks back. The shutdown time is really short, say 5 seconds, but the time it takes to boot up goes up to 1 minute. I have edited /etc/initramfs-tools/initramfs.conf and changed MODULES=dep. This has greatly reduced time taken by initramfs. I'm not sure how else to improve it and reduce the time taken.

Boot time from systemd-analyze blame:

 23.512s dev-sda6.device
 21.462s plymouth-quit-wait.service
 18.832s systemd-udevd.service
 18.395s apparmor.service
 17.486s systemd-tmpfiles-setup.service
  6.801s NetworkManager-wait-online.service
  6.732s plymouth-start.service
  5.873s plymouth-read-write.service
  4.169s udisks2.service
  3.890s networking.service
  3.889s accounts-daemon.service
  3.013s speech-dispatcher.service
  2.573s networkd-dispatcher.service
  2.527s NetworkManager.service
  2.453s avahi-daemon.service
  2.449s thermald.service
  2.446s alsa-restore.service
  2.446s systemd-logind.service
  2.443s pppd-dns.service
  2.438s gpu-manager.service
  2.434s rsyslog.service
  2.016s apport.service
  1.426s wpa_supplicant.service
  1.388s dns-clean.service
  1.276s grub-common.service
  1.269s keyboard-setup.service
  1.056s tlp.service
  1.007s systemd-random-seed.service
   987ms packagekit.service
   896ms fwupd.service
   878ms systemd-tmpfiles-setup-dev.service
   779ms systemd-remount-fs.service
   758ms dev-mqueue.mount
   714ms sys-kernel-debug.mount
   712ms dev-hugepages.mount
   694ms systemd-modules-load.service
   590ms polkit.service
   579ms iio-sensor-proxy.service
   574ms systemd-sysctl.service
   442ms colord.service
   434ms systemd-journal-flush.service
   379ms systemd-timesyncd.service
   332ms dev-disk-by\x2duuid-72e62aa6\x2deefa\x2d49e1\x2daba3\x2d858b0e7dfbd3.swap
   330ms upower.service
   321ms systemd-journald.service
   312ms systemd-backlight@backlight:intel_backlight.service
   230ms setvtrgb.service
   217ms ufw.service
   209ms [email protected]
   179ms systemd-resolved.service
   174ms bolt.service
   141ms gdm.service
   106ms kmod-static-nodes.service
    87ms console-setup.service
    73ms systemd-update-utmp.service
    56ms systemd-udev-trigger.service
    52ms kerneloops.service
    22ms systemd-user-sessions.service
    20ms sys-fs-fuse-connections.mount
    19ms rtkit-daemon.service
    19ms sys-kernel-config.mount
     8ms systemd-update-utmp-runlevel.service

free --human:

              total        used        free      shared  buff/cache   available
Mem:           7.7G        1.2G        5.4G        148M        1.1G        6.3G
Swap:           19G          0B         19G

Output of ls /etc/apparmor.d/:

abstractions  force-complain  tunables         usr.bin.man                           usr.lib.libreoffice.program.soffice.bin  usr.sbin.cupsd     usr.sbin.tcpdump
cache         local           usr.bin.evince   usr.lib.libreoffice.program.oosplash  usr.lib.libreoffice.program.xpdfimport   usr.sbin.ippusbxd
disable       sbin.dhclient   usr.bin.firefox  usr.lib.libreoffice.program.senddoc   usr.sbin.cups-browsed                    usr.sbin.rsyslogd

NOTE:

• In order to improve the time taken by systemd-journal-flush.service I have reduced the MAX file size the journal flush service uses to 50M.
• sda6 is the partition where I have installed Ubuntu on my HDD
• I do not use Thunderbolt on my machine
• I don't use SSD

EDIT: Added benchmark results

sudo hdparm -Tt /dev/sda :

/dev/sda:
 Timing cached reads:   11730 MB in  2.00 seconds = 5876.89 MB/sec
 Timing buffered disk reads: 322 MB in  3.00 seconds = 107.22 MB/sec

sudo hdparm -v /dev/sda :

/dev/sda:
 multcount     = 16 (on)
 IO_support    =  1 (32-bit)
 readonly      =  0 (off)
 readahead     = 256 (on)
 geometry      = 121601/255/63, sectors = 1953525168, start = 0

dd if=/dev/zero of=/tmp/output bs=8k count=10k; rm -f /tmp/output :

10240+0 records in
10240+0 records out
83886080 bytes (84 MB, 80 MiB) copied, 0.0681511 s, 1.2 GB/s

Graphical Results Image Here

I have encountered 3 problems while following this guide to installing Metasploit Framework on Ubuntu and Debian:

1) After installing proper version of ruby, there is a command given for installing Ruby libraries: sudo gem install bundler. When I typed that in and hit enter, it says command not found. After some researching on the internet, I decided to remove sudo and try again. So I've entered gem install bundler and it worked fine. Will this cause any problems?

2) After installing Metasploit Framework, there is a command given to install the required gems and versions:

cd metasploit-framework
bundle install

But when I tried that, I got this error:

rbenv: version '2.1.6' is not installed

I really don't know what to do next (But I moved on).

3) Probably due to the previous problems, in the end when I executed msfconsole command, it said

could not find rake-10.4.2 in any of the sources.

run bundle install to install the missing gems But the bundle install doesn't help either, because when I run that it says

Could not locate Gemfile or .bundle/directory

Any help would be appreciated.

EDIT: When I asked the person himself who had written the guide, regarding this, he told me to select the version of ruby I had just installed with either rebind or RVM before installing bundler, and then to run the bundle install. Could you please list the commands to do so? I am really new to Linux!