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• Configuration of the network manager via DBus: how to set the ad hoc mode

  - by Andrea

  I have an hard nut to crack: a nice bottle of italian Chianti wine to the solver! :) To automatically configure Wifi, I first have to kill the network manager and than activate the wifi via the commandline: I do this all automatically in my application and works great. However... it is not the right way to do this. As the user has no network gui anymore to configure some other network access. A much better and transparent way would be to configure wifi directly via network manager over the DBus interface. I was able to configure it, but I wasn't able to set it to ad hoc mode... Searching the web for a while: a lot about configuration in general but nothing related to ad hoc mode. I think the only way to do figure that out is to look into the source code of the network manager...maybe someone already did it and he can answer.

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• USB Drive Warm Boot Issue. Cold boot = Perfect. Warm boot = "No boot sector found on USB device"

  - by Dan

  I'm experiencing a boot/reboot quirk similar to, yet somewhat different from others posted here. I have two Western Digital "Passport" external USB2 drives (160GB and 320GB) with Ubuntu 11.10 installed. The BIOS on my laptop is set to boot USB drives before the internal drive, and it works well. Either drive will cold-boot Ubuntu 11.10 perfectly. However, at times the computer must be restarted (warm boot) to have software updates or other changes take effect. When I warm-boot the computer, the computer goes through its normal shutdown/restart, then the usual BIOS tests, at which time the USB drive is selected momentarily (as normal), and that's when the trouble starts. I get a "No boot sector found on USB device", and the computer proceeds to boot Windows from the internal drive. If I press F12 early during the restart sequence (allows manual selection of the boot sequence), USB is still shown before the internal drive on the sequence list (as it should be). If I highlight "USB" and press ENTER, I still get a "No boot sector..." error message, but the external USB drive then proceeds to boot Ubuntu normally. I have a third external USB drive (Western Digital 160 GB Media Center) that cold-boots and warm-boots perfectly, so I know everything in the computer is set up properly. It also tells me Ubuntu is set up correctly on the drives, as all three drives were done identically, and at the same time. I've tried formatting the Passport drives NTFS and FAT32, but it didn't change anything. If I power-down the computer, then start it up again, it will boot Ubuntu from either of the Passport drives perfectly - every time. It's as if during a warm boot the Passport drives are somehow looking for the boot loader in the wrong location on the drive - yet either drives works when booting from a cold start. Not a show-stopper .. but frustrating. Computer is a Dell XPS M1530, A12 BIOS (latest), but I don't think the computer plays into the issue because one of the three drives works at all times. It's only the two WD Passport models at issue here. Thanks!

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• Manually activate Network Manager Applet

  - by diosney

  The issue I've is that when I connect via modem through gnome-ppp the Network Manager Applet don't detect a connection and don't let me use the configured VPNs via its interface. How Can I manually activate the Network Manager Applet? What I need is to enable the Network Manager apple in order to use the "VPN Connection" section of the GUI. When I don't have an ethernet cable connected and I connect through a modem the Network Manager applet doesn't enables itself, it is like if don't recognizes the ppp0 interface. My question is: there is a way to force the Network Manager GUI indicator to make it "alive"/"up"/"enabled" in order to use the "VPN Connections"section? Thanks in advance.

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• Running Ubuntu Server from a USB key / thumb drive (being mindful of flash's write limitations)

  - by andybjackson

  Having become disillusioned with hacking Buffalo NAS devices, I've decided to roll my own home server. After some research, I have settled on an HP Proliant Microserver with Ubuntu Server and a ZFS RAID-Z array for data. I settled on this configuration after trying and regretfully rejecting FreeNAS because the Logitech Media Server (LMS) software isn't available on the AMD64 flavour of this platform and because I think Debian/Ubuntu server is a better future-proof platform. I considered Open Media Vault, but concluded that it isn't quite yet ready for my purposes. That said, FreeNAS does include the option to run itself off a 2GB+ flash device like USB key or thumb drive. Apparently FreeNAS is mindful of the write limitations of flash devices and so creates virtual disks for running the OS, writing only the required configuration information back to flash. This would give me an extra data drive slot. Q: Can Ubuntu Server be configured sensibly to run off a flash device such as a USB key/thumb drive? If so, how? The write limitations of flash should be accounted for.

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• Network Manager troubleshooting

  - by Anero

  I'm having some issues when connecting to my house's wifi from my Ubuntu 10.10 laptop. If the connection doesn't exists, when selecting the network (and after entering the WPA2 password) I'm able to connect. Once the connection is saved, when trying to reconnect, Network Manager works for a minute or so and then fails; the only way to reconnect then is to delete the saved connection and re-select the network from the list of available wireless networks. The same network works with no issues on the same laptop when running Win7, and on other wireless networks when running Ubuntu. Is there a Network Manager log which I can take a look at for troubleshooting the issue? Are there any tools for checking the wifi status?

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• HD working with IDE USB adapter but not recognised by bios

  - by Rajeeva

  I have a Windows XP Pentium III desktop with two hard drives. The first one has the OS and is luckily working. The second drive on the secondary master IDE channel few days back was unable to read some files and since then for some time it was failing and reviving intermittently and now it is always showing as failed on the IDE channel When the HD was intermittenly failing, I was able to copy some data from it to the other drive - also during that time if the system was running and the hard disk failed at that time, the system froze and then i had to reboot. then I got a new 80 gb hdd similar (same make - seagate barracuda) to the earlier failing one, a new data cable for the drive and an IDE to USB adapter. the new hard drive i installed in the previous drive's place (secondary master), formatted it and it worked for 1 day and then it also failed - simultaneously i connected the old hd to the IDE/USB adapter and i could view all the data - some of that data i was able to back up from the old hd to the new hd before the new hd failed the new hd i have tried connecting on the primary channel as the slave disk but when i do that then the bios does not detect either the OS drive or the new drive and the system does not boot surprisingly, the older (previously failed) hd and the new hd are both working fine on the usb channel with the IDE/USB adapter. i have ruled out any problem with the secondary channel since the dvd rom i was earlier using as primary slave have now connected to secondary master and it works fine. i am really confused by this behavior on my system. please can anybody try to solve this for me. thanks.

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• Unable to detect windows hard drive while running Ubuntu 12.04 from USB

  - by eapen jacob

  I am completely new to Ubuntu. I experimented with Ubuntu 12.04 by running it from a USB drive, in-order to recover files from my hard disc. History: My laptop is an IBM R60 running windows 7. Suddenly it gave me an error stating "error 2100 - Hard drive initialization error". I have read all the forums and most of them suggested that I remove and replace my HDD and that did not work. And one site suggested to try using Ubuntu to recover files. I booted my system from USB, and once Ubuntu came up, I choose "Try Ubuntu". It came up fine and I was able to surf ,and do other things, etc. I was unable to to access my files which are on the hard disc and "Attached Devices" is grayed out. 1- Is there any way to gain access to my hard disc to recover the files? How do I navigate to search for my files. 2- Is it just simply not possible if the hard disc themselves are not working? Is that why I`m unable to find the drives. I know its a very novice question, but hoping someone would help me out. Thank you, Eapen

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• ubuntu boots only with usb

  - by klimat

  Just installed Ubuntu 11.04. But it boots only from usb. Seems like I didn't pay attention during selecting boot device. sudo fdisk -l [sudo] password for klim: Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x000177e1 Device Boot Start End Blocks Id System /dev/sda1 1 60045 482302976 83 Linux /dev/sda2 60045 60802 6080513 5 Extended Partition 2 does not start on physical sector boundary. /dev/sda5 60045 60802 6080512 82 Linux swap / Solaris Disk /dev/sdb: 4004 MB, 4004511744 bytes 124 heads, 62 sectors/track, 1017 cylinders Units = cylinders of 7688 * 512 = 3936256 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000eee1a Device Boot Start End Blocks Id System /dev/sdb1 * 1 1017 3909317 b W95 FAT32 grub updating or another "grub" operations don't work as I've tried. Can I just copy whole boot folder from usb to HD or smth like that? Any kind of help is appreciated. Apologize for my newbie skills.

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• USB Keyboard works occasionally

  - by palimmo

  A few days ago I bought a SL640 Hama USB keyboard to use on my laptop with Ubuntu 12.04. But I'm having problems, as it works one time out of 10! While on my girlfriend's laptop, with Win Vista, always works. And on my laptop I have Win7 in dual boot. And I have to say that it always works on it. Here are some infos: ~$ lsusb Bus 006 Device 003: ID 04d9:1503 Holtek Semiconductor, Inc. Shortboard Lefty As you can see, the OS recognized it but the keyboard doesn't react ... even the Caps Lock and Num Lock keys don't blink. Regarding the legacy support (useful for GRUB), I have found no entry in the BIOS. But I'm not interested in it. I just want to use it in Ubuntu. However, in GRUB it works sometimes. Surprisingly, now I have booted my laptop: the usb keyboard hasn't worked in GRUB but it has worked since the ubuntu login! And now I'm typing with it. Well.. it means that Ubuntu has the right drivers and they work. But how to "load" them always correctly? thanks in advance!

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• PHP Network Monitoring

  - by Vlad Patrascu

  Is there a way that I can monitor the traffic, Upload/Download (separately) using PHP? I`d like to echo out something like that: Upload: 523 GB | Download: 25 GB This should be based on the System Uptime, so if I restart the computer, the count should restart. Thanks in Advance.

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• Network traffic monitoring - du meter freeware replacement?

  - by truthseeker

  I need to monitor on my computer amount of downloaded and uploaded data. Do you know any tool for Windows 7 x64 which would be freeware and gave me this opportunity? Du meter is perfect but it is a little bit to expensive for me. Any ideas? Help please?

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• Network traffic monitoring - du meter freeware replacement?

  - by truthseeker

  I need to monitor on my computer amount of downloaded and uploaded data. Do you know any tool for Windows 7 x64 which would be freeware and gave me this opportunity? Du meter is perfect but it is a little bit to expensive for me. Any ideas? Help please?

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• Computer Studdering When Transferring Over Network

  - by Nalandial

  This is a really weird problem that I've never even seen before. When I copy to or from my server share, my computer studders terribly and the data transfers very slowly at only around 12MB/s. By studdering I mean the mouse skips around and all my applications respond very slowly; as soon as I cancel the transfer it resolves immediately. I looked at Task Manager and the CPU is only at ~35% with plenty of RAM free. This only started semi-recently; before, I had no problems and the transfer speed maxed out the gigabit connection. I have two hard drives in my computer. When I try transferring files between drives it's fine, but when I copy from the share to either drive or to it from either drive, I get studdering. I'm running Windows 7 x64. Anyone have any idea what's going on? Any help would be much appreciated.

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• Will this car adapter power this Laptop?

  - by CT

  I'm looking to buy a number of car power adapters to be used with some Dell laptops. http://www.cdw.com/shop/products/default.aspx?EDC=1382005 ^ This is the item I am currently looking at. Will it be able to power a Dell Lattitude E6500? Looking at the power supply of the laptop, it states that it is a 90W-AC Adapter. The car adapter states that it is a 60W DC - AC Power Inverter. Will this work? Do I need an DC-AC Power Inverter that is 90W or higher? I am nothing close to an electrician, please help me out. Thank you.

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• DVI to VGA adapter only working in one output

  - by Tom Jenkinson

  I have a AMD Radeon HD 6800 Series graphics card which has 2 DVI outputs. I tried to set it up with 2 monitors which both have vga connectors on the end and used 2 dvi to vga adapters like these. http://www.tvcables.co.uk/images/items/vga-to-dvi.jpg For some reason nothing would reach the monitor, it would remain in standby, if it was plugged into the second output. I tried all the different combinations of cables, adapters and the 2 monitors but whichever monitor that was plugged into the second output wouldn't work. I then randomly decided to plug a different monitor into the second output which has a dvi connector on the end so there was no need for an adapter and plugged it in and it worked! Does anyone know why the second output on the graphics card won't work with a dvi to vga adapter (and the first output will)? I'm really confused! Thanks

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• What type of wireless adapter for Verizon Fios?

  - by ShoeLace1291

  I have verizon fios internet service. I believe they use a Wireless G router, but I just have one question. I currently am using a 54mbps wireless pci adapter in my Windows 7 custom build. It drops the internet connection all the time and is starting to get very irritating. I'm thinking about buying a new one, but all the 300mbps cards on newegg are wireless n. So my question is, will a wireless n network adapter make a difference with a wireless g router?

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• Use 2 wireless adapters to connect to 2 WIFI networks (local and internet) simultaneously?

  - by Mouad

  On my HP Compaq 6710b there's an internal WIFI network adapter. Attached to the same laptop there's also an external USB Alfa WIFI adapter. I live near campus and can pick it's WIFI signal. The problem is that when I am connected to the Internet Wifi using the internal adapter, and then connect to the home (non-internet) Wifi network's router, I lose the connection to the internet (it stays connected, but there's no actual connection). So how can I use the two adapters to connect to both networks successfully ? The router is Belkin N150 Enhanced Router Model F6D4230-4 V1 The external adapter is: ALFA AWUS 036NHR

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• Gnome-Network-Manager Config File Migration

  - by Jorge

  I think I have an issue with gnome-network-manager, I used to have a lot of connections configured, Wireless, Wired and VPN. After upgrading to 12.04 (from 11.10) I lost every configuration. I realized that the configs that used to be saved in $HOME/.gconf/system/networking/connections now are being saved in /etc/NetworkManager/system-connections/. I don't know how to migrate my settings to the new config file format Can anybody help me? jorge@thinky:~$ sudo lshw -C network *-network description: Ethernet interface product: 82566MM Gigabit Network Connection vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eth0 version: 03 serial: 00:1f:e2:14:5a:9b capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.5.1-k firmware=0.3-0 latency=0 link=no multicast=yes port=twisted pair resources: irq:46 memory:fe000000-fe01ffff memory:fe025000-fe025fff ioport:1840(size=32) *-network description: Wireless interface product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: 61 serial: 00:21:5c:32:c2:e5 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwl4965 driverversion=3.2.0-23-generic-pae firmware=228.61.2.24 ip=192.168.2.103 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:47 memory:df3fe000-df3fffff jorge@thinky:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise jorge@thinky:~$ uname -a Linux thinky 3.2.0-23-generic-pae #36-Ubuntu SMP Tue Apr 10 22:19:09 UTC 2012 i686 i686 i386 GNU/Linux jorge@thinky:~$ dpkg -l | grep -i firm ii linux-firmware 1.79 Firmware for Linux kernel drivers

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• Network Issues only on one network with a Broadcom BCM4312

  - by Ryan McClure

  My Ubuntu 11.10 laptop is having network connection issues...only on one network. I have a BCM4312 card and I'm using the proprietary driver. Whenever I connect to a network over wireless connection, I have no trouble except for one network. In my dorm, if I try to connect to the wireless network, it stays connected from anywhere to 30 seconds to 30 minutes before it will still be "connected" according to the indicator but there is no incoming/outgoing internet connection. This only happens in this building. Other networks with the same name at other buildings on my campus have no issue whatsoever. I took it to the tech department here and they keep claiming it's my laptop; but, if I can connect to other networks with absolutely no issues, why can't my laptop connect here? So, here's my question: Is it my laptop, or is it the network? As a side note, no one else that I know has issues on this network but one; she's running Windows 7 and I forget what kind of laptop it is. One of the people in my hall runs Ubuntu 12.04 and has no problem with the wireless. What do you all think of this?

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• Why does Ubuntu keep trying to connect to a WiFi network while plugged into an ethernet

  - by labarna

  My desk is situated at the edge of the range of a wireless signal which I use occasionally (when away from my desk) and is therefore saved in network manager. At my desk, however, I plug into the ethernet cable. While I'm working the computer is constantly trying to join the wireless network and usually failing this results in two annoying behaviors. 1: In gnome shell the network connect and disconnect notices keep popping up at the bottom of the screen and I have to click them to make them disappear (I assume it's been fixed in the next version of gnome). 2: (the worst!) Occasionally the wifi password dialog will pop up and ask for the password to this network (which is already saved). An additionally annoyance is that in gnome shell I'll get two copies of the dialog that I have to cancel, one is gnome shell themed (no window border etc...) and the other is just normal gnome themed. (Sometimes if I've been away from the computer for a while I will have multiple copies of this dialog up as its been trying to connect for a while resulting in at times 20 dialogs to cancel). Note, all the while I've been happily connected to the ethernet and have full network access. This is incredibly annoying and distracting, why doesn't ubuntu stop trying to connect to wifi if I'm on the ethernet (unless I want to broadcast my own network, but that's different)?

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• USB 3 adapter for a dell 2850 with PCI (or PCIX) ports

  - by Don Dickinson

  Does anyone know if there is a plain PCI (or PCIX) USB 3 adapter. i understand the bandwidth of PCI < USB3, but it still beats the heck out of USB 2. i have some older dell 2850s that do not have the PCI E ports that most USB 3 adapters require. i'd really like to get usb3 in those servers. i searched the internet but didn't see any. the local computer store said they only had pcie adapters. tia, don

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• Ubuntu 12.04 USB wireless not recognized

  - by Justin

  I have searched for awhile now for ways to fix my problem but have come up with nothing. I am running Ubuntu 12.04 on my desktop computer. I am unable to find the Enable Wireless button in the network area. It just doesn't appear. Everything else works on my laptop. I believe it's the drivers for my USB network adapter. I also have no way of using a wired connection at the moment. Thanks for any help!

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• How to prevent Network Manager from auto creating network connection profiles with "available to everyone" by default

  - by airtonix

  We have several laptops at work which use Ubuntu 11.10 64bit. I have our Wifi Access Point requiring WPA2-EAP Authentication (backed by a LDAP server). I have the staff using these laptops when doing presentations by using the Guest Account. So by default when you have a wifi card, network manager will display available Wireless Access Points. So the logical course of action for a Novice(tm) user is to single left click the easy to use option in the Network Manager drop down list... At this point the Staff Member (who is logged in with the guest account) expects to just be able to connect and enter any authentication details if required. But because they are using the Guest account, they won't ever have admin permissions (nor do I want them to), and so PolKit kicks in with a request for admin authorisation. I solved this part by modifying the PolKit permissions required to allow all users to create System Network Connections... However, because these Staff members are logging onto the Wifi Access Point with Ldap Credentials and because the Network Manager is now saving those credentials as a System Connection, their password is available for the next guest user session (because system connection profiles are stored in /etc/NetworkManager/system-connections.d/* ). It creates system connections by default because "Available to all users" is ticked by default when you quickly connect to a new wifi access point. I want Network Manager to not tick this by default. This way I can revert the changes I made to Polkit and users network connection profiles will be purged when they log out.

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• How do I make a USB RS232 dongle show up in /dev/ttyUSB* ?

  - by mtrw

  I have a couple of FTDI based USB to Rs232 serial dongles. Sometimes when I plug them into my Ubuntu 10.04 laptop, they show up as /dev/ttyUSB0 and /dev/ttyUSB1, which is what I want to have happen. But sometimes they don't. When they don't, sometimes rebooting fixes the problem and sometimes it doesn't. They always show up in lsusb hanging off of Bus 5: Bus 005 Device 003: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 005 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub I can see them if I do ls /dev/bus/usb/005 as 002 and 003. But if I pass /dev/bus/usb/005/002 to pyserial, which is what I'm using to access /dev/ttyUSBx, I get SerialException("Could not open port: [Errno 13] Permission denied: '/dev/bus/usb/005/002'",).

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• Hardware question; booting ubuntu off of USB flash drive?

  - by Kon

  I'm currently running ubuntu off of a USB 3.0 flash drive on my laptop, and I have another USB 3.0 flash drive I use for storing larger files that I need to access and whatnot. But the issue is that both of the usb 3.0 flash drives don't fit next to each other at all, so I'm forced to use another usb 2.0 port located in a different spot on my laptop. Now my question is that if I use a USB 3.0 hub will that slow my connections down at all? or cause some sort of interference? Another question I had which I was unable to find anywhere on the internet is if there was a USB 3.0 hub with more than one upstream connection? Thanks for your time!

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