Ubuntu

how to make Ubuntu 18.04 boot faster

Asked by michael

I ran this command, that Actionparsnip requested for question 683872. My Ubuntu 18.04 seams to be slower than it was. I do not know what constitutes a large gap.

[Thu Sep 12 10:19:33 2019] systemd[1]: Detected architecture x86-64.
[Thu Sep 12 10:19:33 2019] systemd[1]: Set hostname to <michael-Inspiron-531>.
[Thu Sep 12 10:19:42 2019] systemd[1]: Received SIGRTMIN+20 from PID 287 (plymouthd).
[Thu Sep 12 10:19:42 2019] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
11 sec.

[Thu Sep 12 10:19:43 2019] Adding 2097148k swap on /swapfile. Priority:-2 extents:6 across:2260988k FS
[Thu Sep 12 10:19:43 2019] ppdev: user-space parallel port driver
[Thu Sep 12 10:20:06 2019] k8temp 0000:00:18.3: Temperature readouts might be wrong - check erratum #141
[Thu Sep 12 10:20:06 2019] k8temp 0000:00:18.3: hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
23 sec.

[Thu Sep 12 10:20:13 2019] audit: type=1400 audit(1568298013.048:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=910 comm="apparmor_parser"
[Thu Sep 12 10:20:13 2019] audit: type=1400 audit(1568298013.048:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=910 comm="apparmor_parser"
[Thu Sep 12 10:20:29 2019] kauditd_printk_skb: 71 callbacks suppressed
[Thu Sep 12 10:20:29 2019] audit: type=1400 audit(1568298029.156:83): apparmor="DENIED" operation="open" profile="/usr/bin/freshclam" name="/etc/ssl/openssl.cnf" pid=1322 comm="freshclam" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
[Thu Sep 12 10:20:29 2019] audit: type=1400 audit(1568298029.156:84): apparmor="DENIED" operation="open" profile="/usr/s
16sec.

[Thu Sep 12 10:20:31 2019] IPv6: ADDRCONF(NETDEV_UP): enp0s7: link is not ready
[Thu Sep 12 10:20:31 2019] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s7: link becomes ready
[Thu Sep 12 10:21:11 2019] rfkill: input handler disabled
[Thu Sep 12 10:23:28 2019] audit: type=1400 audit(1568298209.440:85): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="snap-update-ns.opera" pid=3892 comm="apparmor_parser"
[Thu Sep 12 10:23:31 2019] audit: type=1400 audit(1568298212.384:86): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="snap.opera.opera" pid=3893 comm="apparmor_parser"
3 min.

[Thu Sep 12 10:23:32 2019] audit: type=1400 audit(1568298213.235:89): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="snap-update-ns.core" pid=3898 comm="apparmor_parser"
[Thu Sep 12 10:23:32 2019] audit: type=1400 audit(1568298213.239:90): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="snap.core.hook.configure" pid=3899 comm="apparmor_parser"
[Thu Sep 12 13:55:15 2019] perf: interrupt took too long (2551 > 2500), lowering kernel.perf_event_max_sample_rate to 78250
This I do not understand at all. It did not take over 3 hrs. to boot.

4 min. and 7 sec. seams about correct. My question, is about 4 min. OK? Do you see anything that needs to be corrected?

Thank You

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Solved by:
Manfred Hampl
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Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

Then post the output on the SAME question. Why have you made a new question with the requested output?

Revision history for this message
michael (yellupcm-gmail) said : 		#2

683872 Chowdhury Masum

683885 michael

To put my output on Chowdhury Masum's question is wrong.

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#3

Ahhhh apologies. I thought it was the same issue.

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#4

What is the output of:

sudo lshw -C network

Seems that the NIC is slowing things down

Revision history for this message
michael (yellupcm-gmail) said : 		#5

Copied and pasted. This is what I got. Some words flashed up, to fast to read.

michael@michael-Inspiron-531:~$ sudo lshw -C network
[sudo] password for michael:
michael@michael-Inspiron-531:~$

Nothing more.

Closed terminal, tried again. Here are results.

michael@michael-Inspiron-531:~$ michael@michael-Inspiron-531:~$ sudo lshw -C network
michael@michael-Inspiron-531:~$: command not found
michael@michael-Inspiron-531:~$ [sudo] password for michael:
[sudo]: command not found
michael@michael-Inspiron-531:~$ michael@michael-Inspiron-531:~$
michael@michael-Inspiron-531:~$: command not found
michael@michael-Inspiron-531:~$
michael@michael-Inspiron-531:~$

Revision history for this message
michael (yellupcm-gmail) said : 		#6

Tried again, could read words.

USB and SCSI

Revision history for this message
Manfred Hampl (m-hampl) said : 		#7

Open a terminal window
issue the command
sudo lshw -C network
when asked, provide your password
then wait until the output is complete and the command prompt is shown again (may take half a minute!)
use the terminal window's menu entries "edit - select all" and "edit - copy"
finally paste everything into this question document.

Revision history for this message
michael (yellupcm-gmail) said : 		#8

I opened terminal. Copy and pasted "sudo lshw -C network" This is all that came back. I watched for about four minutes, did something else, and checked every four or five minutes until 31 minutes.

michael@michael-Inspiron-531:~$ sudo lshw -C network
[sudo] password for michael:
michael@michael-Inspiron-531:~$

Revision history for this message
michael (yellupcm-gmail) said : 		#9

Tried again, USB and SCSI popped up for a moment. They show as third line, then "michael@michael-Inspiron-531:~$" comes up as third line. I checked Synaptic Package Manager, to see if "lshw" is installed, it is. I found this when I Googled "lshw"

 sudo apt install lshw lshw-gtk

michael@michael-Inspiron-531:~$ sudo apt install lshw lshw-gtk
[sudo] password for michael:
Reading package lists... Done
Building dependency tree
Reading state information... Done
lshw is already the newest version (02.18-0.1ubuntu6.18.04.1).
lshw-gtk is already the newest version (02.18-0.1ubuntu6.18.04.1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
michael@michael-Inspiron-531:~$

Revision history for this message
Manfred Hampl (m-hampl) said : 		#10

This is weird. lshw does not find any hardware classified as network device.

What is the output of
lspci
lsusb

Revision history for this message
michael (yellupcm-gmail) said : 		#11

michael@michael-Inspiron-531:~$ lspci
00:00.0 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a1)
00:01.0 ISA bridge: NVIDIA Corporation MCP61 LPC Bridge (rev a2)
00:01.1 SMBus: NVIDIA Corporation MCP61 SMBus (rev a2)
00:01.2 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a2)
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev a3)
00:02.1 USB controller: NVIDIA Corporation MCP61 USB 2.0 Controller (rev a3)
00:04.0 PCI bridge: NVIDIA Corporation MCP61 PCI bridge (rev a1)
00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2)
00:06.0 IDE interface: NVIDIA Corporation MCP61 IDE (rev a2)
00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
00:08.0 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2)
00:08.1 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2)
00:09.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:0b.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
02:00.0 VGA compatible controller: NVIDIA Corporation GK208B [GeForce GT 710] (rev a1)
02:00.1 Audio device: NVIDIA Corporation GK208 HDMI/DP Audio Controller (rev a1)

michael@michael-Inspiron-531:~$ lsusb
Bus 001 Device 004: ID 0644:0200 TEAC Corp. All-In-One Multi-Card Reader CA200/B/S
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 002 Device 002: ID 045e:077b Microsoft Corp.
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
michael@michael-Inspiron-531:~$

I also tried this command, this is the results. Do not know if this has anything to do with this problem.

About to execute lshw-gtk.
This command needs root privileges to be executed.
Using sudo...
Enter michael password at prompt.
[sudo] password for michael:

(lshw-gtk:4700): IBUS-WARNING **: 10:50:00.565: The owner of /home/michael/.config/ibus/bus is not root!

If not anything to do with problem, please ignore.

Revision history for this message
Best Manfred Hampl (m-hampl) said : 		#12

I have no idea, why
00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
seems to be interpreted as "Bridge".

Back to your initial output:

The gap

"
[Thu Sep 12 10:23:32 2019] audit: type=1400 audit(1568298213.239:90): apparmor …
[Thu Sep 12 13:55:15 2019] perf: interrupt took too long (2551 > 2500), …
This I do not understand at all. It did not take over 3 hrs. to boot.
"
Has nothing to do with boot time any more. the "perf" message was issued very much later during other operations of the system. And also the "snap" messages probably come from an update process to check for updates for snaps.

The last message that I would rate as related to booting is "rfkill: input handler disabled", giving 1 minute and 38 seconds.

If you do not have any WLAN and Bluetooth hardware, then also the rfkill message is not relevant.
Then you would end up with "enp0s7: link becomes ready" and 58 seconds.

Revision history for this message
michael (yellupcm-gmail) said : 		#13

I have all wired connections. No Bluetooth hardware. Will marked solved, because if Manfred Hampl and actionparsnip don't have an answer, and it works, I will not worry with it.

Revision history for this message
michael (yellupcm-gmail) said : 		#14

Thanks Manfred Hampl, that solved my question.