Slow boot: long firmware and loader time.

gexl · 12-26-2023, 03:28 PM

Hello! I recently installed Linux Mint (21.2 Cinnamon) and encountered a problem that my PC is taking an unusually long time to boot.
Despite exploring various solutions, I haven't yet found anything that resolves the problem.
As a newcomer to Linux I'm still navigating in the system.

Code:

systemd-analyze
Startup finished in 19.648s (firmware) + 19.672s (loader) + 6.555s (kernel) + 5.592s (userspace) = 51.468s

Code:

systemd-analyze blame
3.170s NetworkManager-wait-online.service
1.549s systemd-udev-settle.service
1.533s ifupdown-pre.service
 352ms blueman-mechanism.service
 254ms dev-nvme0n1p2.device
 230ms networkd-dispatcher.service
 201ms accounts-daemon.service
 193ms udisks2.service
...

Code:

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

graphical.target @5.582s
└─multi-user.target @5.582s
  └─kerneloops.service @5.555s +26ms
    └─network-online.target @5.549s
      └─NetworkManager-wait-online.service @2.377s +3.170s
        └─NetworkManager.service @2.226s +148ms
          └─dbus.service @2.225s
            └─basic.target @2.218s
              └─sockets.target @2.218s
                └─uuidd.socket @2.218s
                  └─sysinit.target @2.216s
                    └─systemd-timesyncd.service @2.104s +112ms
                      └─systemd-tmpfiles-setup.service @2.092s +9ms
                        └─local-fs.target @2.088s
                          └─zfs-mount.service @2.081s +6ms
                            └─zfs-import.target @2.081s

Code:

cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/nvme0n1p2 during installation
UUID=375820d8-3df9-4e7c-a918-63c731031e7b /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=FD0D-5F3B  /boot/efi       vfat    umask=0077      0       1
/swapfile                                 none            swap    sw              0       0

I'm hopeful that this output provides some insight into the nature of the problem. Any assistance or guidance would be greatly appreciated!

onebuck · 12-27-2023, 07:19 AM

Moved: This thread is more suitable in <Linux Mint> and has been moved accordingly to help your thread/question get the exposure it deserves.

___ · 12-28-2023, 11:44 PM

Welcome to LQ! Sorry no guru answered. This seems to be a general Linux topic.

I guess you're saying: 51sec is a lot longer than e.g. M$Win taking 10sec (IDK how)

Maybe you can somehow configure [efi?] firmware (again, IDK; hopefully some LQ'er does), so it takes the typical few seconds.

I think the 'loader' is grub

The 'blame' is init=systemd (probably 'userspace'), all after 'kernel' (so not relevant I'd guess).

Here's some ideas for more info: inxi -Fza; efiboomgr -v; egrep -v '^#|^$' /etc/default/grub; journalctl -o short-monotonic -b | nc termbin.com 9999 #post url
In 1 (Googled) case, fixing efi BootOrder fixed it. The inxi will tell us all about your PC. The journal is like dmesg; you might see n-second gaps but IDK what they indicate; without the |nc, you can see hilites & issues in color. (You can put () around the cmds before the | pipe nc, to get it all in 1 URL)

Customizing the kernel .config so it doesn't need (grub=loader) initrd/ramdisk would be a huge, expert project, for max optimization.

More, added later... (At least post just your efibootmgr -v)

Quote:

The “firmware” part of the systemd-analyze report shows the time spent initialising EFI, i.e. the time elapsed between the instant you switched the power on (or the system rebooted) and the instant your boot loader started running. If you want to decrease that you’ll need to investigate your motherboard’s setup options.

https://systemd.io/BOOT_LOADER_INTERFACE/
So, the firmware time is UEFI finding your disk, I guess! (see [&Google] efibootmgr BootOrder above)

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