11

The time have risen from 20-25 sec in Meerkat to 35 sec in Natty. I do not know if it is ureadahead but made a bugreport of it in launchpad. I tried Fedora shortly before installing Natty. They use systemd instead of upstart and didn't have this slow boot.

In a dmesg this jump shows up:

[    3.087606] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
[   15.292831] <30>udev[308]: starting version 167

How could it be that booting got so much worse? I also have a "black screen" much longer before Plymouth splash starts in Natty then in Meerkat. Could it be the famous kernel regression?

cweiske
  • 3,395
AlMehdi
  • 562

4 Answers4

2

I set ACPI=off in grub... it worked :)

It boots in about 30 second (before that 2-3 minutes).

Hadden
  • 727
1

I would recommend:

  1. Install cryptsetup package. It doesn't harm your system, but fixes long "black screen" before Plymouth
  2. Remove and then install back ureadahead package. After that perform reboot. Check that /var/lib/ureadahead/pack file is created ~1-2 minutes after reboot.
  3. Reboot with timer now :)
Extender
  • 2,356
1

In /lib/udev/rules.d/60-persistent-storage.rules comment this rule:

# ATA/ATAPI devices (SPC-3 or later) using the "scsi" subsystem
KERNEL=="sd*[!0-9]|sr*", ENV{ID_SERIAL}!="?*", \ SUBSYSTEMS=="scsi", ATTRS{type}=="5", ATTRS{scsi_level}"[6-9]*", \ IMPORT{program}="ata_id --export $tempnode"

Then run as root:

update-initramfs -u

Via http://kubuntuforums.net/forums/index.php?topic=3116527.0

Shnatsel
  • 1,188
0

I had a strangely slow boot on my freshly installed 11.04 (around a minute on a brand new computer), Then I changed the SATA-port on my DVD-drive from a 6Gb/s port to a 3Gb/s port. This change improved my boot time to 20 seconds. I'm not sure why this worked but it's certainly worth trying if your DVD drive is connected to a 6Gb/s SATA port.

T-Bone
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