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• Google-Chrome 10 stable crash on every page

  - by Achu

  I installed google-chrome today, when i open any page including askubuntu i got this error message. i see my memory usage is normal(Memory 56% and swap 4.8%) also I reload and i go to another page same problem What is the problem? the last dmesg output [26612.341865] lo: Disabled Privacy Extensions [29651.852476] chrome[15472] general protection ip:1528e26 sp:7fff514a9dc0 error:0 in chrome[400000+3082000] [31447.190586] [UFW BLOCK] IN=eth1 OUT= MAC=00:1c:25:a1:e7:67:00:16:3e:28:5a:b7:08:00 SRC=172.23.100.6 DST=172.23.20.128 LEN=69 TOS=0x00 PREC=0x00 TTL=128 ID=15939 PROTO=UDP SPT=4243 DPT=161 LEN=49 [31451.250190] [UFW BLOCK] IN=eth1 OUT= MAC=00:1c:25:a1:e7:67:00:16:3e:28:5a:b7:08:00 SRC=172.23.100.6 DST=172.23.20.128 LEN=69 TOS=0x00 PREC=0x00 TTL=128 ID=16180 PROTO=UDP SPT=4243 DPT=161 LEN=49 [31454.260150] [UFW BLOCK] IN=eth1 OUT= MAC=00:1c:25:a1:e7:67:00:16:3e:28:5a:b7:08:00 SRC=172.23.100.6 DST=172.23.20.128 LEN=69 TOS=0x00 PREC=0x00 TTL=128 ID=16322 PROTO=UDP SPT=4243 DPT=161 LEN=49 [31458.648164] [UFW BLOCK] IN=eth1 OUT= MAC=00:1c:25:a1:e7:67:00:16:3e:28:5a:b7:08:00 SRC=172.23.100.6 DST=172.23.20.128 LEN=69 TOS=0x00 PREC=0x00 TTL=128 ID=16513 PROTO=UDP SPT=4243 DPT=161 LEN=49 [33124.300112] lo: Disabled Privacy Extensions [33601.021406] Skipping EDID probe due to cached edid [34594.043501] chrome[15746]: segfault at 0 ip 0000000000d5cdd0 sp 00007fff5149ec20 error 6 in chrome[400000+3082000] [34597.395334] chrome[18112] general protection ip:17c85bf sp:7fff514aa4f0 error:0 in chrome[400000+3082000] [34616.786643] chrome[18124]: segfault at 1007 ip 00000000017c849f sp 00007fff514aabd0 error 4 in chrome[400000+3082000] [37277.436207] lo: Disabled Privacy Extensions [38549.501390] e1000e: eth1 NIC Link is Down [38551.122253] e1000e: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX [38551.122263] e1000e 0000:00:19.0: eth1: 10/100 speed: disabling TSO

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• Static Routes and the Routing Table

  - by TheD

  This is very much a learning question if someone would be happy to explain a couple of concepts. My question is - the default routing table that exists in, in my case, a default Windows 7 install, what do each of the routes in the table do? Here is a screenshot: The 10.128.4.0 is just a route I've added while messing. I understand from a question I posted on Superuser the first route is just a default route that will route all traffic for any IP to my default gateway on my Interface in use. But what about the others? And how would the routing table handle a machine with multiple NIC's, perhaps connected to two different networks, or maybe even two NIC's on the same network so a VM can have a physical Network card instead of each VM sharing the hosts. Thanks!

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• Problem with Jumbo Frames

  - by Spookyone

  Hello, I am trying to set up jumbo frames on my gigabit home LAN but no luck so far. My setup is: * D-Link DIR-655 router, HW Revision A3, Firmware 1.21 EU * Synology DS107+, Firmware 3.0-1337 * Laptop w/ Win7 x64, external PCIx NIC managed by "Generic Marvel Yukon 88E8053 based Ethernet Controller" The router is supposed to support jumbo frames but doesn't feature any relevant setting. I set the Jumbo Packet value to 9000 on both the NIC and the Synobox but it doesn't work, ping -f -l 8972 says "Packet needs to be fragmented but DF set". Is there any other setting I overlooked, the DIR-655 doesn't actually support jumbo frames, or what else could be the problem?

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• Bridging Network Devices with Multiple IPs

  - by Andy

  I have a small server with a single NIC that I am trying to get a bridge functioning on so that I can run KVM. On this NIC I have a couple IPs statically assigned to it: eth0 = 192.168.1.1 eth0:1 = 192.168.1.2 eth0:2 = 192.168.1.3 eth0:3 -> Assign the bridge to this I am attempting to set up a bridge using the following instructions: sudo brctl addbr br0 sudo brctl addif br0 eth0:3 sudo ifconfig br0 192.168.1.120 netmask 255.255.255.0 up sudo route add -net 192.168.1.0 netmask 255.255.255.0 br0 sudo route add default gw 192.168.1.1 br0 sudo tunctl -b -u root -t tap0 > /dev/null sudo ifconfig tap0 up sudo brctl addif br0 tap0 However, when I do the second command: sudo brctl addif br0 eth0:3 It puts the ENTIRE eth0 device into promiscuous mode. This knocks the server offline and inaccessible by anything other than locally. Is there a way to bridge JUST eth0:3 to br0 and not put the entire device into promiscuous mode?

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• server pinging problem (privately)

  - by ankur kaushik

  i have two server and both have 2 nic one for private and one for public public networkworking properly and private netword not working properly and no pining

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• Using USB to Ethernet with Linux Ubuntu 12.04

  - by Sriram

  Being a newbie, Please excuse if the technical Jargon used is not an universally accepted one :) I have a particular device (say device A) whose USB2.0 driver is available from Linux community. Linux UBUNTU12.04 based PC is able to detect that device via the available driver. My requirement is to ensure that PC can exchange the command as well as data with the device A over TCP/IP packets (In other words, instead of just a USB Based driver, there should be a TCP/IP wrapper over the device USB driver and still does the same job as the USB driver was doing before) Bought an USB (Female) to RJ-45 adapter,connected Device A (male) USB to the USB Female end of the adapter and the Ethernet end connected to the router. PC also is connected to the same router so that both Device A and the PC have the IP address in the same subnet range. So the packets produced by the device A can be routed to the PC via some binding( not sure how I can achieve this, but conceptual idea) Here are the issues I can see as of now 1) USB to RJ-45 is just a hardware signal conversion and not a NIC in itself and hence no MAC/IP ADDRESS assigned. Can we bind a virtual NIC created in PC with this connector? 2) Any available USB TO IP command as well as data translation wrappers available? e.g. command for the device A on Ethernet converted to command for the device A on USB which is then acted upon the device as a command from the USB driver There is some missing link in my understanding and hence it would be of great help if you can bounce off some ideas on how I can take this forward so that Device A and PC exchange data over IP. Thanks and Regards, Sriram

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• URL rewrite and domain frame

  - by Dennis

  I have registered the domain www.posti.sh at nic.sh. The website is on the server www.myskoob.com/postish. Unfortunately, nic.sh does not support frames, i.e. that the domain stays posti.sh as it forwards to www.myskoob.com/postish - so I thought about a URL rewrite on the server. Unfortunately I have no idea how rewriting works - I am thankful for explanations - but I would also like to ask whether this is generally possible. What I need is: The server needs to recognize that the folder postish is accessed Depending on the file that is opened, it needs to rewrite the url to www.posti.sh/<-according filename here- Also, the server needs to understand that a link to www.posti.sh/about.php links to www.myskoob.com/postish/about.php and likewise for other files - at the moment, when I type in posti.sh/about.php it redirects to http://www.myskoob.com/postishabout.php, which does not exist All this should be possible irrespective of whether the url contains a "www" at the beginning or not A plus but not necessary would be that it does not display the .php extensions Would that generally be possible? If not, what would be the alternatives? If anyone knows how to do it, any code and/or way to do it would be much appreciated!

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• Hyper-V virtual machine unable to get IP address from DHCP server running on same physical box

  - by Bronumski

  We have a Windows server 2008 R2 with two network cards running AD, DHCP, DNS and Hyper-V The first nic is setup with a static IP address and DHCP, WDS, and DNS are bound to it. The second nic is configured in Hyper-V to be only used by Hyper-V and has been automatically configured so that only the virtual switch is enabled on the adapter. DHCP and DNS work fine for all physical machines on the network. It also works for Virtual Machines running on another physical box. Virtual machines that are bound to the virtual switch network adapter are unable to get a IP address. If the virtual machine is given a static IP address with correct subnet, gateway and dns everything works. Has anyone else got this working?

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• SQL – Contest to Get The Date – Win USD 50 Amazon Gift Cards and Cool Gift

  - by Pinal Dave

  If you are a regular reader of this blog – you will find no issue at all in resolving this puzzle. This contest is based on my experience with NuoDB. If you are not familiar with NuoDB, here are few pointers for you. Step by Step Guide to Download and Install NuoDB – Getting Started with NuoDB Quick Start with Admin Sections of NuoDB – Manage NuoDB Database Quick Start with Explorer Sections of NuoDB – Query NuoDB Database In today’s contest you have to answer following questions: Q 1: Precision of NOW() What is the precision of the NuoDB’s NOW() function, which returns current date time? Hint: Run following script on NuoDB Console Explorer section: SELECT NOW() AS CurrentTime FROM dual; Here is the image. I have masked the area where the time precision is displayed. Q 2: Executing Date and Time Script When I execute following script - SELECT 'today' AS Today, 'tomorrow' AS Tomorrow, 'yesterday' AS Yesterday FROM dual; I will get the following result:   NOW – What will be the answer when we execute following script? and WHY? SELECT CAST('today' AS DATE) AS Today, CAST('tomorrow' AS DATE) AS Tomorrow, CAST('yesterday'AS DATE) AS Yesterday FROM dual; HINT: Install NuoDB (it takes 90 seconds). Prizes: 2 Amazon Gifts 2 Limited Edition Hoodies (US resident only)   Rules: Please leave an answer in the comments section below. You must answer both the questions together in a single comment. US resident who wants to qualify to win NuoDB apparel please mention your country in the comment. You can resubmit your answer multiple times, the latest entry will be considered valid. Last day to participate in the puzzle is June 24, 2013. All valid answer will be kept hidden till June 24, 2013. The winner will be announced on June 25, 2013. Two Winners will get USD 25 worth Amazon Gift Card. (Total Value = 25 x 2 = 50 USD) The winner will be selected using a random algorithm from all the valid answers. Anybody with a valid email address can take part in the contest. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: NuoDB

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• DIY Photo Rig Takes Laser-Triggered 3D Insect Photos

  - by Jason Fitzpatrick

  How do you catch a butterfly in flight and in 3D? You do it with this laser triggered photo rig. This it yourself monster is an absolute beauty of at-home engineering. It has dual focus planes, dual flashes, a laser trigger, and enough machined aluminum to make us wish we had a CNC out in the garage. If you’re one part photographer, one part electronics tinker, and one part machinist, this is the kind of weekend project that will cement you into neighborhood DIY lore. Hit up the link below for a full build guide and sample photos. High-Speed 3D Portable Macro Unit [via DIY Photography] How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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• Is Dell Inspiron 15R Special Edition compatible with Ubuntu?

  - by Obada Talal Abu Arisheh

  I want to buy a Dell Inspiron 15R Special Edition. On ubuntu.com, it says that Dell Inspiron 15R will work properly. But the special edition has some special issues. I will list the hardware: 3rd Generation Intel® Core™ i7-3612QM processor (6M Cache, up to 3.1 GHz) 15.6" Full High Definition (1080p) LED Display 8GB2 Dual Channel DDR3 SDRAM at 1600MHz 750GB 7200 RPM SATA Hard Drive 8X Tray Load CD/DVD Burner (Dual Layer DVD+/-R Drive) AMD Radeon™ HD 7730M 2GB Built-in Skullcandy™ stereo speakers and Waves MaxxAudio® 4 technology Will it have any problem?

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• Wake On Lan only works on first boot, not sequent ones

  - by sp3ctum

  I have converted my old Dell Latitude D410 laptop to a server for tinkering. It is running an updated Debian Squeeze (6) with a Xen enabled kernel (I want to toy with virtual machines later on). I am running it 'headless' via an ethernet connection. I am struggling to enable Wake On Lan for the box. I have enabled the setting in the BIOS, and it works nicely, but only for the first time after the power cord is plugged in. Here is my test: Plug in power cord, don't boot yet Send magic Wake On Lan packet from test machine (Ubuntu) using the wakeonlan program Server expected to start (does every time) Once server has booted, log in via ssh and shut it down via the operating system After shutdown, wake server up via WOL again (fails every time) Some observations: Right after step 1 I can see the integrated NIC has a light on. I deduce this means the NIC gets adequate power and that the ethernet cable is connected to my switch. This light is not on after step 4 (the shutdown stage). The light becomes back on after I disconnect and reconnect the power cord, after which WOL works as well. After step 4 I can verify that wake on lan is enabled via the ethtool program (repeatable each time) This blog post suggested the problem may lay in the fact the motherboard might not be giving adequate power to the NIC after shutdown, so I copied an acpitool script that supposedly should signal the system to give the needed power to the card when shut down. Obviously it did not fix my issue. I have included the relevant power settings in the paste below. I have tried different combinations of parameters of shutdown (the program) options, as well as the poweroff program. I even tried "telinit 0", which I figured would do the most direct boot via software. If I keep the laptop's power button pressed down and do a hard boot this way, the light on the ethernet port stays lit and a WOL is possible. I copied a bunch of hopefully useful information in this paste I have tried this with the laptop battery connected and without it. I get the same result. Promptly pressing the power button causes the system to shut down with the message "The system is going down for system halt NOW!", and WOL is still unsuccessful.

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• Can't access certain specific IP/domain on Windows 7

  - by jfrobishow

  Been banging my head on the wall for some time now. I have a fresh install of Windows 7 - Ultimate ~x86. Some IPs can't resolve properly, it doesn't matter if I try using Firefox, Chrome or IE I end up with a domain not found (server not found, etc.) I am behind a router, all the other computers aren't affected only this Win 7 machine. It's only certain sites. e.g. xkcd.com, facebook's cdn, google group. Things I have tried: flushdns ipconfig renew Disable IP v6 on the NIC Double checked that the computer was in the right timezone @ the right time. Reinstall the NIC driver. Again 90% of the sites will work but not the major one :P help!!!

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• Problem in listening to multicast in multihomed Linux server

  - by Lior

  I am trying to write a multicast client on a machine with two NICs, and I can't make it work. I can see with a sniffer that once I start the program the NIC (eth4) start receiving the multicast datagrams: y.y.y.y. (some ip) - z.z.z.z (multicast ip, not my eth4 NIC IP) UDP Source port: kkk (some other port) Destination port: xxx (multicast port) However, I can't get those packets using my program (listening to port xxx on eth4). I also added: route add 224.0.0.0 netmask 240.0.0.0 dev eth4 Searched the web for some examples/explanations, but it seems like I do what everybody else does. Any help will be appreciated. is there anything else to do with route/iptables?

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• Cannot Ping a server after configuring the Routing and Remote Access Services

  - by stacker

  After configuring the Routing and Remote Access Services to be a both VPN and NAT service, I cannot ping that server anymore from the external side. But when I configure it to be just a VPN server, or just a NAT server, I do able to ping it from the external side. My configuration is like: DC: 192.168.20.11 VPN and NUT: Nic 1: 192.168.20.1, NIC 2: 192.168.147.171 Client: 192.168.147.1 The mask is always: 255.255.255.0 I cannot understand why when configuring the VPN server to be a VPN and NAT, I cannot ping the server anymore.

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• Help with Kodak esp 3250 printer driver on Lubuntu 12.1 SOLVED!

  - by user108608

  First my system: pentium 4 -don't remember the speed-, 1g ram, dual boot to separate physical drives, Fdos and Lubuntu 12.1 second my lan: I have four computers operating for the same printer. 1. Intel quad core i5, 4g ram, running Windoze 7 64 bit, printer connected and shared from here. Kodak ESP 3250 2. Gateway 17" laptop running Windoze 7 32bit 3. Asus tablet (small laptop) running Lumbutu 12.1 4. My dual boot system running Fdos and Lubuntu 12.1 The problem: I downloaded c2esp_25c-1_i386.deb, tried to install it using DEBI Package Installer, it loads the files, looks for cups driver and ends with an error: "Dependancy is not satisfiable: libcupsdriver1 (=1.4.0)" What do I do now? Is there some place that I can get the correct cups driver? further information: The Asus tablet was running Ubuntu 12.1 (very slowly and with a few crashes) and could print from the lan printer with no problems. Is there something in Ubuntu that can be loaded into Lubuntu? noobee user hoping for answers, Paul

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• kvm -net only passing broadcast, multicast, and guest destination traffic

  - by user52874

  Figured this out just last week, but I can't find it now. Even printed it out. Can't find that either. Frustrating...so...help! Configured a 'monitoring' nic on a kvm guest (running 'Security Onion, if it matters). I read (somewhere) that the default nic configuration for a kvm guest is to only pass broadcast traffic, multicast traffic, and traffic with the guest's mac as a destination. There is an option to override this behaviour, and pass all traffic. It's something like --mac-filtering=no, or --mac-restriction=no, or something like that. Worked beautifully. Does this look at all familiar to anyone who can clue me in to the exact option syntax? thx.

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• Error: no such partition help!

  - by John

  Ok so i had Ubuntu installed on dual boot with windows 7, i decided i liked it, btu i did not want the dual boot option so i decided to uninstall it. no whenever i turn on my computer the "error: no such partition" screen shows up and i cant do anything at all. i tried restarting it and booting from a windows recovery disc to fix the mbr but my bios no wont load i cant change the boot order i cant manually boot or anything, it just goes straight to the "error: no such partition" screen. can someone please help me?

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• Remote Desktop fails after VPN connection.

  - by Samet Sorgut

  The remote computer is connected with Remote Desktop. When the remote computer is connected to VPN the Remote Destop freezes. It is not possible to connect to the remote computer again via Remote Desktop. What can be done to connect to this remote computer after it establishes a VPN connection? The only thing that comes to my mind is to install a second NIC and configure Remote Desktop to accept connection from this NIC while VPN is working from the other... What do you suggest?

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• MPL with Commercial Use Restrictions (And Other Questions)

  - by PythEch

  So basicly I want to use MPL 2.0 for my open source software but I also want to forbid commercial use. I'm not a legal expert, that's why I'm asking. Should I use dual-license (MPL + Modified BSD License)? Or what does sublicensing mean? If I wanted to license my project, I would include a notice to the header. What should I do if want to dual-license or sublicense? Also, is it OK to use nicknames as copyright owners? I am not able to distribute additional files (e.g LICENSE.txt, README.md etc) with the software simply because it is just a JS script. By open-source I mean not obfuscated JS code. So in this case, am I forced to use GPL to make redistribution of obfuscated work illegal? Thanks for reading, any help is appreciated, answering all of the questions is not essential.

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• set tap0 using virt-manager for bridged wireless

  - by DaveO

  After 3 days I finally have kvm guests working on the network via wireless (link below - thanks!): My network is 192.168.1.0/24 on the host: sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward" sudo tunctl -t tap0 sudo ip link set tap0 up sudo ip addr add 192.168.1.25/24 dev tap0 sudo route add -host 192.168.1.30 dev tap0 sudo parprouted wlan0 tap0 on the guest: auto eth0 iface eth0 inet static address 192.168.1.30 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.25 and start the guest: sudo kvm /path/to/guest.img -net nic,macaddr=DE:AD:BE:EF:90:26 -net tap,ifname=tap0,script=no This works great and I can ping the local network and the internet back and forth between the guest. But how do I add these settings to the guest's xml config so I can start the guest via virt-manager with the same nic settings? ref: http://www.linuxquestions.org/questions/debian-26/kvm-wireless-bridge-network-691953/

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• Updated: NLB 2 Windows Server 2003 Servers - Looking to Hire SysAdmin to solve!

  - by Paul Hinett

  I need to configure windows NLB on 2 dedicated servers I have. My main machine has been running for some time, with several domain names pointing to the servers primary IP address. Both servers have 2 NIC's installed, and both have several secondary public IP addresses available if needed? What IP address would I use for the cluster IP, does this IP need to be added to the IP list of both public NIC's ip address list? What IP addresses do I use for the host's dedicated IP? Please help, this is driving me nuts...i've taken down the server twice on accident today! UPDATE: Looking to hire a windows SysAdmin to solve! I have updated my question, i would like to hire a trusted windows SysAdmin to take care of this for me, preferably today...can anyone help and provide some credentials please? Thank you in advance!

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• Trixbox CentOS Default GW Problem (Multi-homed server)

  - by slashp

  I'm having an issue with a CentOS trixbox server which is dual-homed (one private facing NIC [eth1], one internet-facing NIC [eth0]). I can't seem to get the default gateway to set properly to our ISP's GW via eth0. I've modified the /etc/sysconfig/network to contain both a GATEWAY & GATEWAYDEV line and removed the GATEWAY line from /etc/sysconfig/network-scripts/ifcfg-eth1 (as well as /etc/sysconfig/network-scripts/ifcfg-eth0). No default GW shows up in the routing table unless it's specified in the ifcfg-eth1 file (which both the wrong interface and wrong gateway IP), otherwise, the routing table simply does not contain a default gateway..any ideas would be greatly appreciated! Thanks! EDIT Just realized when attempting to add the default gateway manually using the route add command, I receive an error stating: SIOCADDRT: Network is unreachable I know this error can occur when your default gateway and interface IP address are not on the same subnet..in this case, my public IP address of eth0 is a /29.

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• Ubuntu 12.04 Touchscreen Calibration

  - by Lee

  I have a machine with Ubuntu 12.04 installed, with dual monitor, via VGA and DVI Interface. The monitor is one touch screen and the other one is regular LCD Monitor. The touch screen is made in China with some unknown brand, and I am using eGalax Driver. The touch screen is now detected and works, but i need to do some calibration since it does not correctly perform click on touch. The problem is, when I’m using xinput_calibrator, it shows 4 crosses to be clicked on, because I’m using dual monitor, the crosses is now show 2 on the touch screen (touchable) and the others on the other monitor which is regular non-touch monitor. Please help, thank you.

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• GRUB- error: no such partition grub rescue and Error: No default or UI configuration directive found boot > on pendrive

  - by Ash

  I have dell inspiron, previously I installed Ubuntu 11.10 on my Windows 7 and made it dual boot. But since I want to upgrade my Ubuntu version and change the partition spacing, I deleted 11.10 partition directly and extended my hardrive space (Windows + Ubuntu) at that moment everything was fine. Then I prepared a 12.04 32bit USB and installed it . It was installed but isn't showing dual boot option like 11.10 and my machine directly boot into Windows 7. So instantly i again deleted my 12.04 partition . Now I login into Windows 7 but whenever I put USB ( with 12.04 ) to boot from it, I am facing error of "no such partition grub rescue" even though I try to put lower version(11.04) it showing another error "Error: No default or UI configuration directive found boot " I have reinstall Windows 7 and reformat all partition, still I am facing same error :(

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