Ubuntu supports resolving MACHINE.local names. How can you configure it correctly to resolve only MACHINE as the hostname? By default it appears to assume that this is a DNS search.
I had a system booting over the network with PXE on 11.10. I upgrade to 12.04 and now the boot fails during startup with the following messsage:
Gave up waiting for root device. Common problems:
-Boot args (cat /proc/cmdline)
-Check rootdelay= (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/nfs does not exist. Dropping to a shell!
My PXE config file is:
default linux
say Starting Legolas
LABEL linux
KERNEL legolas/vmlinuz
APPEND netboot=nfs root=/dev/nfs initrd=legolas/initrd.img nfsroot=192.168.0.8:/srv/tftp/legolas,rsize=4096,wsize=4096 ip=dhcp pci=nomsi rw quiet
Any ideas why this does not work on 12.04? Thanks.
Just upgraded to 12.04 and my video performance feels a lot worse. Running an Intel GM45 with dual 1280x1900 screens. When I switch to a single screen performance is much better. This was the same setup on my 11.10 system, and was fine with the dual screens.
glxgears is running around 30fps with dual screens on, and 60fps (vsync limted?) with a single screen.
Looking for some ideas, or anyone else with the same issues.
One of my favorite programs, davmail, crashes now after upgrading to 11.10. Just checking if there is a quick fix before I submit a bug report. Thanks.
$ davmail
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007ff9e08d46b0, pid=7998, tid=140711267337984
#
# JRE version: 6.0_23-b23
# Java VM: OpenJDK 64-Bit Server VM (20.0-b11 mixed mode linux-amd64 compressed oops)
# Derivative: IcedTea6 1.11pre
# Distribution: Ubuntu oneiric (development branch), package 6b23~pre10-0ubuntu5
# Problematic frame:
# C [libdbus-1.so.3+0x246b0]
[error occurred during error reporting (printing problematic frame), id 0xb]
# An error report file with more information is saved as:
# /home/pcm/hs_err_pid7998.log
GConf Error: Configuration server couldn't be contacted: D-BUS error: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
Is it possible to install Ubuntu directly to an NFS volume? I'd like to boot a diskless machine with a mini.iso image and run the installer. The only problem is I can't find a way to mount the NFS volume from the install/command line.
Has anyone done this before, or does the installer assume my machine has a disk drive?
Trying to figure out if my /var/run is using disk or not. See the command output:
$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg0-root 40G 15G 26G 36% /
none 3.9G 340K 3.9G 1% /dev
none 3.9G 1.1M 3.9G 1% /dev/shm
tmpfs 3.9G 600K 3.9G 1% /tmp
none 3.9G 452K 3.9G 1% /var/run
none 3.9G 0 3.9G 0% /var/lock
none 3.9G 0 3.9G 0% /lib/init/rw
/dev/md0 236M 59M 165M 27% /boot
/dev/mapper/vg0-home 60G 58G 2.3G 97% /home
When there are no users on my system, I would like the hard disk to spindown to low-power state. I realize that this might not be 100% achievable for a straight 24 hours, but it seems reasonable that the system could remain idle for a few hours at a time when it is not in use.
My system is headless and running a limited number of services. The primary services are: exim4, mythtv-backend, nfs, samba, cups, apt-cacher-ng
Assume that drives are already enabled to go into standby mode. Also, its not acceptable to increase the write-back timeout, since my system is not on a UPS.
Firefox on my system can not connect to http://docs.jquery.com. When I try the same address in SeaMonkey, on the same system, it works perfectly.
Any thoughts why Firefox can not load the site?
There are menu items missing form my System->Preference menu. Going to System->Preferences->Main Menu, the menu items are not disable, but missing entirely. How do you reset the menus back to defaults?
I created a secondary user login for my system, but sound playback does not work? What do you have to change to give user access to sound?
I have a bug where my CPU frequency is scaling down every few hours or so. This happens when:
- I'm on AC power
- scaling governor is on 'Performance'
What do you have to do to disable CPU frequency scaling? I know you can manually force the min CPU frequency uder /sys/devices/system/cpu, however I really want a permanent solution so I don't have to be constantly changing the CPUfreq values.
Every 3 to 5 seconds I get the following output in kernel.log file. How do you fix this?
Oct 28 00:04:30 host kernel: [57192.331327] pciehp 0000:00:1c.4:pcie04: Link Training Error occurs
Oct 28 00:04:30 host kernel: [57192.331331] pciehp 0000:00:1c.4:pcie04: Failed to check link status
Looking for setup steps for gitosis after installing from apt-get.
After upgrading to 10.10 Maverick, my NFS root is not mounted correctly during boot. What is the correct method?
10.04 and earlier I had my /etc/fstab setup to use /dev/nfs as my root device, but it looks like that no longer exists. Is anyone else using 10.10 for NFS boot?
By default Ubuntu uses DHCP and Gnome NetworkManger to configure interfaces. This is not optimal in many cases.
How to configure a desktop machine for a static IP address that applies to all users?
Additional background: For 99.9% of users a static DHCP entry is probably the easiest solution, however I have found a conflict with mythtv-background process and any changes to the eth0 interface. If the interface is brought up/down after mythtv is running, it hangs the process (which also broke system suspend). So my questions really needs a static IP address, where the interface is brought up with a known IP, and stays up permanently.
I frequently cross this issue, and always have to google for an answer. Does anyone have a permanent fix for BADSIG errors from apt-get?
W: GPG error: http://download.virtualbox.org lucid Release: The following signatures were invalid: BADSIG 54422A4B98AB5139 Oracle Corporation (VirtualBox archive signing key)
I was under the impression there was a GUI app for changing the Xorg video driver. If so, where is it? I don't see it in 10.04.
Is it possible to reset the connection of a USB device, without physically disconnecting/connecting from the PC?
Specifically, my device is a digital camera. I'm using gphoto2, but lately I get "device read errors", so I'd like to try to do a software-reset of the connection.
From what I can tell, there are no kernel modules being loaded for the camera. The only one that looks related is usbhid.