Ubuntu Installation :: 40-second Boot Delay: Is It Udev
Feb 3, 2011
This morning I had the courage to run an apt-get autoremove which took some 275 packages off my hard drive, and now I am experiencing a delay of about 40 seconds at boot, after grub, before the plymouth splash appears. The cursor blinks on a black screen while the hard drive churns away. Finally two error messages appear too quickly to be read, and then the bootsplash kicks in. I can find the instant in the dmesg where the delay happens, but can't locate the cause. Here's what my dmesg looks like:
[Code]....
The laptop is an Acer Timeline X 3820TG, with the dual GPU "switchable graphics." These dual graphics cards have given me enough trouble in the past that I wouldn't be surprised if they were the problem. But the hard drive action sounds like a 'fsck,' and seems to be contemporaneous with the dmesg notice that the root partition is mounted.
Incidentally, my boot wasn't all that fast before; I would not be surprised if this delay was preexisting, but used to happen after the plymouth boot screen was already on screen. Still, if I can get rid of this one ugly delay, I can have a fast (c. 10 secs) boot time.
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May 11, 2011
After GRUB 2 comes up (I'm running Ubuntu 10.10) and I choose the OS to boot, there is about a 5 second delay where nothing appears to happen after I make the selection -- no disk activity. It happens consistently every time I boot. Again, this is after I choose the OS to boot, so it shouldn't have anything to do with the standard delay to allow me to choose the appropriate OS.Is there a good way to troubleshoot this and determine what is causing the delay?
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Jul 18, 2011
I have a Macbook 5,2, on which I'm triple booting OS X - Linux - Windows, using bootcamp and rEFIt.I had a variation of Ubuntu 10.04 called Uber Student as the linux installation.I installed Ubuntu 11.04 AMD64 instead, by choosing the EFI boot option.Now this gave me some problems. When I shot down, the Macbook gives me a troubling long beep sound.When I start up, I'm still able to boot up into rEFIt and Grub2, but there is a big delay with the screen being black for about 30 seconds and the little white light in the left corner of the Macbook is blinking feverishly. I read something about a guy which had a similar problem and the process seemed to mess up the firmware on his Macbook, so he had to have his MB changed.
What's up with the scary beep sound and the long boot up delay?Secondly, when I want to do an update of the Ubuntu system, the update manager asks me to do a partial upgrade, which includes removing the grub-EFI, resulting in a system that won't boot...
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Sep 7, 2010
I just performed an update thru the Update Manager, & on re-boot got this message: ( Ubuntu 10.04.1 LTS, kernel 2.6.32-24-386 ) udevadm trigger is not permitted while udev is unconfigured. Gave up waiting for root device. Common problems :
- Boot args ( cat /proc/cmdline )
- Check root delay= ( did the system wait long enough? )
- Check root= ( did the system wait for the right device? )
- missing modules ( cat /proc/modules; ls /dev )
ALERT! /dev/disk/by-uuid/df0200e3-e6e9-439a-922f-100d92af0c58 does not exist. Dropping to a shell!. BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu11) built in shell (ash) (initramfs)_ Info: I can boot into older version: Ubuntu 10.04.1 LTS, kernel 2.6.32-23-386. The Update Manager does not seem to want to show any updates that are available.
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Dec 19, 2010
I upgraded to the last ubuntu last week and since I get the error: "udevadm trigger is not permitted while udev is unconfigured."I followed different posts on the forums but none helped: [URL]I did the sequence:
"1. Boot liveCD
2. "sudo fdisk -l" to find your boot disk, in my case it is /dev/sda5.
3. "sudo mkdir /media/newroot"
[code]....
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Nov 22, 2009
Fedora 12 randomly crashes after a fresh install.Everything is left at its default during the installation except I install KDE and not Gnome.When I try to boot I hit esc at the splash screen to see where it hangs, but it never hangs at the same spot twice. Sometimes it hangs and sometimes it restarts. Its crashed everywhere from starting udev to the login screen.
I've been using kubuntu for the past year because I have the same problem with F10 and F11.
I dual boot with Windows 7 for games.
System specs:
Motherboard: MSI P45 Platinum
Processor: Intel Core 2 Duo E8500
Video Card: Radeon HD4850
Memory: 4GB (2x2GB) Patriot
HDD: Main: 250GB SATA Western Digital
code....
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Nov 6, 2010
my ubuntu wait about 25 seconds on bootdmesg:
Code:
[ 0.815389] udev[90]: starting version 163
[ 0.904058] sky2: driver version 1.28
[code]....
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Nov 26, 2010
In Ubuntu 8.04, when I wanted to reduce the boot menu delay I had to do the following:
enter in terminal: gksu gedit /boot/grub/menu.lst
I then looked for the line that begins with timeout and changed the value (shortened the delay)
Now with ubuntu 10.10, when I tried this I do get into the Gedit text editor as with 8.04 but it is completely blank, no entries at all? So nothing to change! So how do I change the boot menu delay in ubuntu 10.10?
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Jan 7, 2011
I'm running ubuntu on a macbook5,4, and I get a 30-second long pause during the boot sequence. (I have quiet turned off.) This shows up in dmesg as:
Code:
[ 1.847208] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
[ 2.000059] usb 4-1: new full speed USB device using ohci_hcd and address 2
[ 2.239138] hub 4-1:1.0: USB hub found
[ 2.242107] hub 4-1:1.0: 3 ports detected
[ 2.590102] usb 3-5: new low speed USB device using ohci_hcd and address 2
[ 2.672282] scsi 6:0:0:0: Direct-Access APPLE SD Card Reader 1.00 PQ: 0 ANSI: 0
[ 2.672863] sd 6:0:0:0: Attached scsi generic sg2 type 0
[ 2.674243] sd 6:0:0:0: [sdb] Attached SCSI removable disk
[ 3.160035] usb 3-6: new full speed USB device using ohci_hcd and address 3
[ 3.492058] usb 4-1.1: new full speed USB device using ohci_hcd and address 3
[34.373586] udev[417]: starting version 163
[34.422599] lp: driver loaded but no devices found
[34.503755] lib80211: common routines for IEEE802.11 drivers
[34.503759] lib80211_crypt: registered algorithm 'NULL'
[34.508256] wl: module license 'MIXED/Proprietary' taints kernel.
[34.508260] Disabling lock debugging due to kernel taint
Details:
Linux jagadai 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 02:41:37 UTC 2010 x86_64 GNU/Linux
Grub.
Dual boot with OS X 10.6.4 using rEFIt. It shouldn't be at all relevant, but I'm using E17 on top of kdm.
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Jan 11, 2010
In Ubuntu 910 on my Asus EEE-PC1005HA, I notice that during boot, when the screen is dark between the plain Ubuntu logo and the animated purple screen, there is a brief message:udev[488] cannot read file (rest of message goes by too fast for me)This doesn't seem to hurt anything. My system has been working just fine for a long time. I don't know how long the message has been there. Perhaps it merely lengthens boot time? Should I care? If I should care, where might the message be logged (so that I don't have to photograph the screen)?
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Jan 21, 2010
I'm writing for my brother who was running Karmic on a Microtel desktop.He'd been having trouble with blank cds (data cds and dvds didn't cause this problem) crashing his box so he uninstalled and then installed udev package.Now when he tries to boot the box goes into a memory test and then reboots into the memory test over and over. He tried to check the installed kernels to choose one that might boot but there are none listed (he pressed "esc" to see the list-it's empty).He tried booting from a live cd and that won't work either. The cd drive spins but nothing else.
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Apr 24, 2010
When I reboot my computer I cannot see my Tuner card until I manually restart the MythTV backend.
the problem is that the backend is being started before the drivers to the tuner card (HVR-2250). is there a way to change this.
I figure I should ask here as more people know there way around start up commands. I figure the easiest thing to do is to edit this file:
Code:
/etc/init/mythtv-backend.conf
I would think adding a sleep or wait command would do the trick?
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Oct 19, 2010
I know this might sound stupid, but how do I change the time delay for a dual boot?
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Apr 23, 2010
I have a 5,2 macbook pro, and I use refit to boot my ubuntu partition. I do not have an OSX partition on the local drive at all. The only partitions that are on the drive are the EFI, ubuntu and swap. Refit lives on the EFI dos partition.I am experiencing a very long delay on power-on before the system will load refit (probably 20-30 seconds) Once it loads everything is normal.
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Feb 21, 2010
I'm trying to track down a longggg delay during OpenSUSE 11.2 boot. It's 1 to 2 minutes long.
1. I upgraded the kernel to "vmlinux-2.6.31.12-0.1-desktop.gz" a while back, and I'm "kind of" thinking this is when it began. It seems in previous versions (I came from 10.3) that the grub menu always contained the previous version. That doesn't seem to be true in 11.2. Is there any way to tell OpenSUSE YaST/zypper to keep the previous version and leave the entry in grub?
2. What does this message mean: "BIOS EDD facility v0.16 2004-Jun-25, 2 devices found"?
I haven't pinpointed the error, and there is nothing really obvious in /var/log/messages. The drives are there, and the network is up. I'm sort of leaning towards the new kernel. What processes wait 60 seconds? If I watch the console closely for the message before the delay, it can vary.
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Apr 14, 2011
I have recently installed Suse 1.4_64 on my system. During the boot process I experience two delays of about 30 seconds, every time I boot up.
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Mar 17, 2010
During the boot process the machine (Fujitsu Celsius M470) hangs about 4 min at udev:loading drivers. After that it continues and I can work with the OpenSuse 11.2 system without problems.I activated the debug log in /etc/udev/udev.confthen I see that it is doing a lot in that time, at the end I see the message:udevadm settle timeout queue contains: a long list of pci/usb entries (no entries in any log for this)
in the logfile I find:udevd-work[1071]: '/sbin/modprobe' (stderr) 'FATAL: Error inserting ipmi_si (/lib/modules/2.6.31.12-0.1-desktop/kernel/drivers/char/ipmi/ipmi_si.ko): No such device'there is no ipmi. how can I deactivate the loading of this module?
udevd-work[412]: '/sbin/modprobe' (stderr) 'FATAL: Module input:b0019v0000p0001e0000_e0,1,k74,ramlsfw not found.'
Mar 17 11:35:36 mira udevd-work[418]: '/sbin/modprobe' (stderr) 'FATAL: Module
[code]....
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Jan 6, 2010
I am trying to make gentoo boot faster and in my searching I came across this article http://lwn.net/Articles/299483/. One of the things they did was revert to a "persistent, old-school /dev directory so that boot doesn't depend on udev". I would like to know how to do this, but when I searched for disabling udev all the forums say that its a bad idea. All I want to know is how to make a static /dev directory.
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Aug 14, 2010
I've been having problems with start_udev on my machine post kernel 2.6.18-162 on my CentOS machine. A previous install would work on the old kernelut not the newer ones. I recently did a completely fresh install of CentOS 5.5o see if maybe there was a orruption in my install when it upgraded,t I still have the problem of udev hanging on startup.Using the rescue option on the disk, I've managed to track the problem down to the 50-udev.rules file. Through trial and error, I moved all the .rules files out of the rules.d directory, and added them back one at a time to see which one(s) caused the system to hang, and which ones it carried on booting as normal with. The only one that causes it to hang is the 50-udev.rules.
From what I can tell, this rules file is responsible for letting udev check various pieces of hardware. I think that it is failing whent runs modprobe on a pci device address.Only problem is I don't understand the rules file syntax, so I don't know if I can simply comment out or change a line in this file to skip the device that its looking for.Can anybody help me track down the specific device/line that is doing this?(I've kept the file out of the folder for now and my system appears to continue operating, but I get the occasional problem that for all I know could be due to udev not having a complete start up).
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May 30, 2010
I am brand new to Ubuntu and I am trying to find out if its possible. When the laptop starts it gives me 30secs to choose windows or ubuntu? Is there anyway to change the order or the timer?
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Mar 29, 2009
I have done a fresh text-only installation of Fedora 10 on a Dell Dimension E521 for the purpose of setting up a server. After installation I ran yum update to bring the system up to date. After the update, I rebooted the computer, but the boot process froze. I recycled power and pressed "I" after the Dell BIOS screen and the GRUB bootloader appeared. I selected the most current version, edited the kernel line by deleting "rhgb quiet" and replacing it with "3." After making this change, I continued with the boot and the computer stopped at "Starting udev:" I have two fedora 10 revisions showing in the GRUB bootloader, the original installation and the update after running yum.
I repeatedly tried rebooting both versions and, after about 30 attempts, the computer finished booting and got me to the command prompt. Reading through the forums indicated there might be some issue with my nVidia GeForce 6150 onboard video and fedora 10. So, when I got to the command prompt, I followed the instructions in the forums [URL] to load the rpmfusion drivers. This appeared to be successful and when I looked at /etc/X11/xorg.conf it appeared to be correct for the new nVidia drivers. After loading these new drivers I tried rebooting. Unfortunately, I have been trying now over and over to get back to the command prompt, but simply can't get past "Starting udev."
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Aug 11, 2009
i'm heaving the following message at boot time: "Starting udev: udevd[114]: unknown key 'DEVTYPE' in /etc/udev/rules.d/70-cups-libusb.rules:6", i guess it's something about usb printing support but i am not sure, and i don't know how to fix it, does any of you guys know what this exactly means and how to fix it
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May 29, 2011
I'm trying to configure gpsd 2.96 to start automatically from udev rule on a Slack 13.37 box.1. I've compiled and installed gpsd from sources and made sure it starts manually.2. I've copied the /lib/udev/gpsd.hotplug and /lib/udev/gpsd.hotplug.wrapper scripts in their places from the source tree and made them executable.3. I've copied the gpsd.rules file from sources into /etc/udev/rules.d4. I renamed it 99-persistent-gpsd.rules to run late in the bootup process.5. I've copied the /etc/default/gpsd file from sources and made sure it has the right settings inside.
Now, for the results. If I plug the gps usb dongle in while the system runs, it starts gpsd if it is not started, and it connects to it just as it should. But if I start the system with the dongle in, gpsd doesn't get started during boot. I can't find any relevant message in /var/log/syslog or /var/log/messages for boot time. There is stuff there from when I plug the dongle in while the system is running though. It's like udev ignores the rules for it at boot time.Is there something in the Slackware boot scripts that would prevent running those scriptssd.hotplug.wrapper which in turn runs /lib/udev/gpsd.hotplug which is a Python script)?Here is the contents of 99-persistent-gpsd.rules (ignore the comments referring to Debian, it was meant for a Debian box). My usb gps adapter is the first one - the Prolific chipset one:
Code:
# udev rules for gpsd
# $Id: gpsd.rules 5861 2009-08-03 13:41:01Z bzed $
[code]....
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Jul 10, 2010
I have just installed slack-13.1 on an acer aspire one netbook from a usb stick by booting the install kernel with noudev. I was able to do a complete install including lilo but upon rebooting my boot hangs when encountering my webcam.I see enough info to note the id as 0c45:62c0. This is a microdia webcam which I may be able to do something about later but in the first instance I'd like to be able to boot my system. The bios is very basic and there is no way to disable devices.
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May 12, 2010
Have just installed 5.4 64 bit on an AMD64 x2 system with 4 GB ram running ESXi4.Text based install went fine, but on reboot starting up it gets as far as 'Starting udev' and just hangs. Checking the performance in ESXi it appears to be using 100% cpu.I have left it for half an hour and it does not progress and the only thing to do is to power cycle the VM.I have searched and found a few suggestions for kernel parameters but they did not make any difference. I can't even get in to a command line as it doesn't boot up far enough.I have reinstalled it several times and also checked the MD5 of the downloaded file and all appears Ok.
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Mar 14, 2010
I need to do a NFS mount after my PC boot up. So I put an entry in root's cron to do it:
@reboot /bin/mount sun:/mynfs /mnt/sun/mynfs
The mount occasionally fails. But when I manually mount after booting, it always succeed. So I suspect maybe the cron sometimes got executed before the network was started?
Is there a way to delay the mount until after the boot sequence finishes? You know, other than put the command in a script and add a sleep in front of it?
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Aug 4, 2010
Every time I boot up OpenSUSE 11.3 it hangs at the same "position" for approximately 3 minutes and then continues to boot. Unfortunately I see no corresponding error log e.g. in dmesg output. Hence, I don't know what is the reason for that. Here is my dmesg output. The delay occurs at 20 seconds after beginning of boot process (line 1085). I also analyzed the boot process with bootchart.
My computer: Notebook Lenovo ThinkPad R400.
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Apr 23, 2011
I've done an upgrade from lenny to squeeze.Now, I'm getting a lot of udev warning messages at the boot time.Knows someone howto remove them?
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Sep 1, 2010
Debian testing: Kernel: Linux 2.6.32-5-amd64I can now only boot into safemode because I cannot get these 4 packages to upgrade:
udev
media-player-info
xserver-xorg-core
[code]....
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Mar 24, 2010
I'm hoping someone knows about this one... I'm running the latest CentOS 5.4 with kernel 2.6.18-164.15.1.el5 (x86_64).When I boot the machine, it gets to the udev starting bit, hangs for like 5 minutes, then prints a message "Failed, will continue in the background." Then it boots OK after that.I tried booting again with the kernel option (from grub) "udevdebug", and what I saw when it tried again was a million messages saying it was waiting for "/sbin/pam_console_apply" to return, but I guess it wasn't returning... ;) Again, after 5 minutes, it gave up and finished booting.Now, this host is an LDAP client.
I figured that may have something to do with it as it is likely that pam_console_apply tries to make an LDAP lookup, which is wrong, because networking hasn't even started yet. If I disable LDAP (by removing ldap lookups in nsswitch.conf), I get no pam_console_apply errors from udev and it boots quickly. But that's a bummer, I need LDAP on this box, and I don't want my boot time to be 7-8 minutes. ;)Presumably before, when LDAP was enabled and it waited 5 minutes and then notified me that it will "continue in the background", that it was eventually successful after networking started. LDAP otherwise works fine on this box, just like all the other servers we have.This is new behavior, I've not seen it with CentOS 5.3 and below. Has anyone seen this? Any hints on what I can do to avoid it? It seems like a pam bug or something, but I don't know for sure.
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