Re: removing plymouth

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On Fri, Jul 11, 2014 at 1:51 PM, Ahmad Samir <ahmadsamir3891@xxxxxxxxx> wrote:
> On 11/07/14 08:27, Balint Szigeti wrote:
>>
>> On Fri, 2014-07-11 at 13:41 +0800, Ed Greshko wrote:
>>
>>> On 07/11/14 13:11, Balint Szigeti wrote:
>>>>
>>>> Can somebody tell me what would happen if I remove Plymouth packages? I
>>>> know it handles the boot screen and the user interaction during boot.
>>>> Does it mean, if I remove this package I can't examine what happened
>>>> during the boot or I can not boot?
>>>
>>>
>>> You'll be able to boot just fine.  You'll just see all the "OK"s
>>> scrolling by as the various components are started.
>>>
>>> Not sure what you're thinking the gain will be to remove it.
>>>
>>> --
>>> If you can't laugh at yourself, others will gladly oblige.
>>
>>
>> $ systemd-analyze blame
>>           10.661s systemd-cryptsetup@luks\x2d9ea31b69\x2d8769\x2d4bf1
>> \x2d897d\x2d67ecf8d4b0be.service
>>            9.862s plymouth-quit-wait.service
>>            9.743s accounts-daemon.service
>>            8.427s firewalld.service
>> improving the boot time :)
>>
>>
>>
>
> As has been said removing the plymouth packages shouldn't prevent the system
> from booting (you probably will need to rebuild the initramfs and remove
> "rhgb quiet" from the kernel cmd line).
>
> Note that the times in the output don't necessarily mean that
> plymouth-quit-wait.service is the reason the boot is slow, from the man
> page:
>
> <<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> "systemd-analyze blame" prints a list of all running units, ordered by the
> time they took to initialize. This information may be used to optimize
> boot-up times. Note that the output might be misleading as the
> initialization of one service might slow simply because it waits for the
> initialization of another service to complete.
> <<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
> --
> Ahmad Samir

systemd-analyze
Startup finished in 1.583s (kernel) + 23.163s (initrd) + 5min 223ms
(userspace) = 5min 24.969s

systemd-analyze blame
    4min 44.300s bumblebee-nvidia.service
    1min 23.109s plymouth-quit-wait.service
    1min 19.944s ModemManager.service
    1min 19.639s NetworkManager.service
    1min 15.397s chronyd.service
    1min 14.720s thinkfan.service
    1min 14.146s akmods.service
    1min 13.997s akmods-shutdown.service
         44.434s rsyslog.service
         29.037s accounts-daemon.service
         27.259s dnf-makecache.service
         18.275s
systemd-cryptsetup@luks\x2d62605ed6\x2d6797\x2d48a2\x2d8e3c\x2d0a903b9154fd.service
         18.269s
systemd-cryptsetup@luks\x2dbbff8fec\x2dd580\x2d48a1\x2d93cb\x2d1daa7cb98aed.service
          9.388s systemd-suspend.service
          6.910s mcelog.service
          6.549s libvirtd.service
          6.408s vboxdrv.service
          4.642s jexec.service
          4.190s proc-sys-fs-binfmt_misc.mount
          3.577s polkit.service
          3.112s systemd-udev-settle.service
          3.047s proc-fs-nfsd.mount
          2.972s bluetooth.service
          2.911s rtkit-daemon.service
          2.851s avahi-daemon.service
          2.606s var-lib-nfs-rpc_pipefs.mount
          2.180s systemd-logind.service
          2.126s lvm2-monitor.service
          1.905s fedora-loadmodules.service
          1.391s systemd-tmpfiles-clean.service
          1.328s systemd-tmpfiles-setup.service
          1.324s nfs-lock.service
          1.306s fedora-readonly.service
          1.188s plymouth-start.service
          1.176s tlp.service
          1.143s systemd-tmpfiles-setup-dev.service
          1.017s fedora-import-state.service
           992ms wpa_supplicant.service
           937ms systemd-backlight@backlight:acpi_video0.service
           907ms dev-hugepages.mount
           898ms plymouth-read-write.service
           851ms livesys.service
           847ms auditd.service

For anyone who thinks they have slow boot.
-- 
Regards,
Sudhir Khanger.
sudhirkhanger.com
https://github.com/donniezazen
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