Linux Lite Forums

General => Suggestions and Feedback => Topic started by: uthappam on June 11, 2018, 08:53:51 AM

Title: Solution to slow booting
Post by: uthappam on June 11, 2018, 08:53:51 AM

It appears that slow booting has been a problem with Linux Lite for some years. I downloaded and installed LL 4.0 last night and was about to discard it when a search turned  up these steps:

sudo leafpad /etc/default/grub

replace GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash” with GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash profile”

sudo update-grub2

sudo leafpad /etc/init.d/rc

find this line : CONCURRENCY=none or CONCURRENCY=makefile
replace with : CONCURRENCY=shell

sudo apt purge virtualbox*
sudo systemctl stop vboxadd.service
sudo systemctl stop vboxadd-service.service
sudo systemctl disable vboxadd.service
sudo systemctl disable vboxadd-service.service

untick the vbox client in the menu, settings, session and startup, application auto-start setting.

I do not think that software so recently released should require a user to do such things, specially as LL is said to have been designed for first time Linux users.

Title: Re: Solution to slow booting
Post by: Mart on June 11, 2018, 12:59:17 PM

Uthappam

Interesting post.

Will your instructions - up to (but not including) sudo apt purge virtualbox* - work in LL 3.8?

Thanks

Mart

Title: Re: Solution to slow booting
Post by: trinidad on June 11, 2018, 02:36:01 PM

concurrency=shell is not a valid entry. won't break anything but acts the same as concurrency=none.

TC

Title: Re: Solution to slow booting
Post by: uthappam on June 11, 2018, 06:50:50 PM

Mart, I cannot answer your question. This is my first use of Linux Lite. Virtualbox is in the repositories but was not installed. I have no idea why it was put in -- or was permitted to sneak in.

Title: Re: Solution to slow booting
Post by: Jerry on June 12, 2018, 02:51:10 AM

Quote from: uthappam on June 11, 2018, 06:50:50 PM

Mart, I cannot answer your question. This is my first use of Linux Lite. Virtualbox is in the repositories but was not installed. I have no idea why it was put in -- or was permitted to sneak in.

Let me enlighten you on the reason. https://www.linuxliteos.com/forums/release-announcements/linux-lite-4-0-final-released/

Title: Re: Solution to slow booting
Post by: dihonomo on June 22, 2018, 08:57:23 AM

I have just found a great blog-post on speeding-up a slow boot here:  https://www.dedoimedo.com/computers/ubuntu-beaver-slow-boot.html

Before:

Code: [Select]

systemd-analyze
Startup finished in 9.259s (kernel) + 50.555s (userspace) = 59.815s
graphical.target reached after 50.545s in userspace

Code: [Select]

systemd-analyze critical-chain
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.

graphical.target @50.545s
└─multi-user.target @50.545s
  └─smbd.service @43.502s +7.043s
    └─nmbd.service @26.375s +17.124s
      └─network-online.target @26.374s
        └─NetworkManager-wait-online.service @21.157s +5.216s
          └─NetworkManager.service @16.400s +4.751s
            └─dbus.service @15.213s
              └─basic.target @14.954s
                └─paths.target @14.954s
                  └─acpid.path @14.954s
                    └─sysinit.target @14.867s
                      └─apparmor.service @12.237s +2.599s
                        └─local-fs.target @12.181s
                          └─run-user-1000-gvfs.mount @39.479s
                            └─run-user-1000.mount @35.576s
                              └─swap.target @9.917s
                                └─dev-disk-by\x2duuid-420eef95\x2d688c\x2d40bd\x2dab12\x2d8662342ff8de.swap @8.521s +1.395s
                                  └─dev-disk-by\x2duuid-420eef95\x2d688c\x2d40bd\x2dab12\x2d8662342ff8de.device @8.520s
After analyzing the log files as explained in the post I linked to above I noticed that the main slow-down was caused by NetworkManager waiting for IPv6 to activate. As I hadn't enabled any support for it on my network, I just disabled it in "NetworkManager -> Edit Connections -> IPv6 Settings: Ignore".

This shaved off another 20 seconds from the boot process:

Code: [Select]

systemd-analyze
Startup finished in 9.235s (kernel) + 30.131s (userspace) = 39.366s
graphical.target reached after 30.124s in userspace

Code: [Select]

systemd-analyze critical-chain
The time after the unit is active or started is printed after the "@" character.
The time the unit takes to start is printed after the "+" character.

graphical.target @30.124s
└─multi-user.target @30.124s
  └─smbd.service @29.666s +457ms
    └─nmbd.service @24.134s +5.530s
      └─network-online.target @24.132s
        └─NetworkManager-wait-online.service @20.163s +3.969s
          └─NetworkManager.service @16.606s +3.553s
            └─dbus.service @16.388s
              └─basic.target @16.336s
                └─sockets.target @16.336s
                  └─avahi-daemon.socket @16.336s
                    └─sysinit.target @16.305s
                      └─systemd-timesyncd.service @16.097s +207ms
                        └─systemd-tmpfiles-setup.service @15.994s +101ms
                          └─systemd-journal-flush.service @3.718s +12.274s
                            └─systemd-remount-fs.service @2.633s +1.084s
                              └─systemd-journald.socket @2.602s
                                └─system.slice @2.602s
                                  └─-.slice @2.244s
 8)

Title: Re: Solution to slow booting
Post by: vitorsm7 on November 11, 2019, 02:30:35 PM

I registered on this site just to thank you for this post. Thank you so much for this help!

Title: Re: Solution to slow booting
Post by: Paul74 on November 26, 2019, 04:19:43 AM

Hello,

Very interesting !
Using a SSD, my PC boots in less than 20 seconds.
(http://i.imgur.com/FC3xuyY.png)