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How do I boot [embedded] linux from sd card?

- by Brandon Yates

I am hacking together a quick embedded linux system on a DM816x evm board. Previously I have been using TFTP and NFS to load my kernel and root filesystem to the board. I am now trying to switch over to loading everything from an SD card. I have my card partitioned such that uBoot and my kernel image are in one partition, and my rootFS in another partition. At power-on, Uboot starts correctly and successfully launches the kernel. However, the kernel is unable to mount the root file system. It appears that it doesn't recognize any SD (mmc) cards. It gives this error message. VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0) Please append a correct "root=" boot option; here are the available partitions: 1f00 256 mtdblock0 (driver?) 1f01 8 mtdblock1 (driver?) 1f02 2560 mtdblock2 (driver?) 1f03 1272 mtdblock3 (driver?) 1f04 2432 mtdblock4 (driver?) 1f05 128 mtdblock5 (driver?) 1f06 4352 mtdblock6 (driver?) 1f07 204928 mtdblock7 (driver?) 1f08 50304 mtdblock8 (driver?) Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) I feel like I'm missing something fundamental here. Why does it not recognize the root device I am trying to load from? Here is my uBoot boot script that is running: setenv bootargs console=ttyO2,115200n8 root=/dev/mmcblk0p2 rw mem=124M earlyprink vram=50M ti816xfb.vram=0:16M,1:16M,2:6M ip=off noinitrd;mmc init;fatload mmc 1 0x80009000 uImage;bootm 0x80009000

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Apache2 slow serving static while healthy

- by user45339

My Apache status looks like; 201 requests/sec - 98.8 kB/second - 504 B/request 85 requests currently being processed, 345 idle workers _____CCW_C_____C__C__C_R____C_WC_________C__C____CW__C__CCC_____ __C____W______C___C___CW__C_C______C__W_C__C_____CCC____C______R CC_C_______C___C____C______________C______C__C________________C_ ___________________C______________________C_______C___C_____C___ CC____C__C___R_____C_C_CC__________C___C___________R____C_C_C___ ______C______W_W__W___C____________________C__WCC__R__R_C_______ R__RC________________________C___R____W__C____.................. .................................................... Server load is average 2 on a 4 core machine. IO utilization is 10-15% and doesn't have many jumps over 70%. Machine has almost 4 gb free and uses 0 swap. The site on the machine is a PHP site. All PHP code is optimized and fast mostly when it gets accessed, however sometimes requests get stuck. Stuck meaning; no response for at least 10 sec. We debugged the PHP code, but it is quite optimal and fast. We spend a lot of time on it until we decided to test the requesting of: <html><body>test</body></html> test.html page. This static resource also gets 'stuck' in the same manner the php pages get 'stuck'. How is the possible given the health of the system? I tested the network, but, when the PHP shows 'slowness' in the site monitoring, the html test files also take (far longer) than 10 sec to load using; time lynx -dump http://127.0.0.1/test.html We are kind of desperate to solve this problem, but we cannot seem to tackle it.

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Windows Error Reporting and IIS7 on Windows Server 2008

- by graffic

In a windows webservere I'm trying to get a memory dump of a failing IIS 7 worker process (w3wp.exe) with no avail. In the Event Viewer I get the following. Faulting application name: w3wp.exe, version: 7.5.7600.16385, time stamp: 0x4a5bd0eb Faulting module name: clr.dll, version: 4.0.30319.1, time stamp: 0x4ba21eeb Exception code: 0xc00000fd Fault offset: 0x0000000000005c22 Faulting process id: 0x1cac Faulting application start time: 0x01cc23419da54772 Faulting application path: c:\windows\system32\inetsrv\w3wp.exe Faulting module path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll Report Id: b54ec4f8-8fa4-11e0-ab62-005056810035 Even if I've configured LocalDumps for WER, and specifically for w3wp.exe in the registry. I get another event telling me that there is a report here: *C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_w3wp.exe_cdb8af6deb381574fe9fb0dc9aa3edaad59acd5f_cab_4fbf9b53* It contains the following files: WERD931.tmp.appcompat.txt WERDFE9.tmp.WERInternalMetadata.xml WER99EF.tmp.WERDataCollectionFailure.txt The "depressing one" is the WERDataCollectionFailure that says: Heap dump generation failed: 0x8007012b Mini dump generation failed: 0x8007001f After many tries, lots of msdn documentation and many failed google search. I'm out of ideas on how to get a dump here. Does anyone have any suggestion on how to make WER work? Thank you in advance for your time reading this :)

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Regular Windows 7 BSOD with Shrew VPN client

- by Junto

The Shrew VPN client appears to be a good alternative to the Cisco VPN Client on x64 Windows 7. However, since installing it I've seen fairly regular BSODs. Minidump attached: Microsoft (R) Windows Debugger Version 6.11.0001.404 AMD64 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [D:\Temp\020810-23431-01.dmp] Mini Kernel Dump File: Only registers and stack trace are available Symbol search path is: SRV*d:\symbols*http://msdl.microsoft.com/download/symbols Executable search path is: Windows 7 Kernel Version 7600 MP (8 procs) Free x64 Product: WinNt, suite: TerminalServer SingleUserTS Built by: 7600.16385.amd64fre.win7_rtm.090713-1255 Machine Name: Kernel base = 0xfffff800`0285f000 PsLoadedModuleList = 0xfffff800`02a9ce50 Debug session time: Mon Feb 8 18:08:12.887 2010 (GMT+1) System Uptime: 0 days 7:52:06.120 Loading Kernel Symbols ............................................................... ................................................................ .............. Loading User Symbols Loading unloaded module list .... ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Use !analyze -v to get detailed debugging information. BugCheck A, {0, 2, 0, fffff800028d50b6} Unable to load image \SystemRoot\system32\DRIVERS\vfilter.sys, Win32 error 0n2 *** WARNING: Unable to verify timestamp for vfilter.sys *** ERROR: Module load completed but symbols could not be loaded for vfilter.sys Probably caused by : vfilter.sys ( vfilter+29a6 ) Followup: MachineOwner Machine is a brand spanking new Dell Precision T5500. Superuser appears to have several recommendations for the Shrew VPN Client as an alternative to the Cisco VPN client on 64 bit machines, so I wondered if anyone here has seen this problem and possibly found a solution to the problem? I've decided to run the VPN client under Windows 7 compatibility mode for the moment (Vista SP2) with administrator privileges to see if it makes a difference. Oddly, the VPN doesn't necessarily need to be connected. I've noticed it when browsing using Google Chrome and Internet Explorer, usually when I open up a new tab. If it carries on I think I'll be forced to shell out the 120 EUR for the NCP Client instead.

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Unable to understand why Alfresco doesn't start on Tomcat

- by Infernalsirius

Hi all, I have a problem that I've been inspecting for a while now, googling and everything but could not begin to understand. I'm really not used to java, even less tomcat. So there it is. First, the setup. Centos 5.3 on a virtualized server. Bitnami Native Alfresco stack (tomcat5.5, mysql5, java, javajdk, JDBC) Content of catalina.log. Since it's the shortest and where I found my first clue to what is going wrong: SEVERE: Error listenerStart Aug 27, 2009 5:32:58 PM org.apache.coyote.http11.Http11BaseProtocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 Aug 27, 2009 5:32:58 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 229 ms Aug 27, 2009 5:32:58 PM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Aug 27, 2009 5:32:58 PM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/5.5.25 Aug 27, 2009 5:32:58 PM org.apache.catalina.core.StandardHost start INFO: XML validation disabled Aug 27, 2009 5:34:47 PM org.apache.catalina.core.StandardContext start SEVERE: Error listenerStart Aug 27, 2009 5:34:47 PM org.apache.catalina.core.StandardContext start SEVERE: Context [/alfresco] startup failed due to previous errors Aug 27, 2009 5:34:48 PM org.apache.coyote.http11.Http11BaseProtocol start INFO: Starting Coyote HTTP/1.1 on http-8080 Aug 27, 2009 5:34:48 PM org.apache.jk.common.ChannelSocket init INFO: JK: ajp13 listening on /0.0.0.0:8009 Aug 27, 2009 5:34:48 PM org.apache.jk.server.JkMain start INFO: Jk running ID=0 time=0/11 config=null Aug 27, 2009 5:34:48 PM org.apache.catalina.storeconfig.StoreLoader load INFO: Find registry server-registry.xml at classpath resource Aug 27, 2009 5:34:48 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 110327 ms Aug 27, 2009 5:38:27 PM org.apache.coyote.http11.Http11BaseProtocol pause INFO: Pausing Coyote HTTP/1.1 on http-8080 Aug 27, 2009 5:38:28 PM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina Aug 27, 2009 5:38:29 PM org.apache.coyote.http11.Http11BaseProtocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8080 There's the content of catalina.out, it seems to be a stack trace or application trace of the error, is that right? Catalina.out gist on github There is a 404 error telling me this: The requested resource (/alfresco/) is not available. This is it. I think.

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Permissions Required for Sharepoint Backups

- by Wyatt Barnett

We are in the process of rolling out an extranet for some of our partners using WSS 3.0 as the platform. We already use it internally for a variety of things, and we are using the following powershell script to backup the server: param( $url="http://localhost", $backupFolder="c:\" ) [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint") $site= new-Object Microsoft.SharePoint.SPSite($url) $names=$site.WebApplication.Sites.Names foreach ($name in $names) { $n2 = "" if ($name.Length -eq 0) { $n2="ROOT" } else { $n2 = $name } $tmp=$n2.Replace("/", "_") + ".sbk" $saveas = "" if ($backupFolder.Length -eq 0) { $saveas = $tmp } else { $saveas = join-path -path $backupFolder -childPath $tmp } $site.WebApplication.Sites.Backup($name, $saveas, "true") write-host "$n2 backed up to $saveas." } This script works perfectly on the current installation running as our domain backup user. On the new box, it fails when ran as the backup user--claiming "The web application located at http://extranet/" could not be found. That url does, in fact, work so I'm fairly certain it isn't anything that dumb and rather is some permissions issue. Especially because, when executed from my security context, the script works perfectly. I have tried making the backup user a farm owner, as well as added him to the various site collection admin groups on the extranet. The one major difference between the extranet and the intranet server is that the extranet has an alternative access mapping (for https://xnet.example.com) and also uses forms authentication for that mapping. Anyhow, what permissions (or other voodoo) do I need to setup to get this script to work properly?

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Windows PE network setup

- by microchasm

I'm walking through the following step-by-step guide for deploying Windows 7 via AIK: http://technet.microsoft.com/en-us/library/dd349348%28WS.10%29.aspx On step 4 (Capturing the Installation onto a Network Share), I run into a bit of a snag: attempting to connect to a network drive repeatedly fails. I'm using/deploying Dell Optiplex 380 64 bit machines, and the network cards seem to be really wonky. On the machine that I'm using to run AIK etc, the network driver wasn't found automatically. I had to manually go in and install the driver (which was found on the OEM installation media). I've since copied this to the USB key that I'm using for the Autounattend.xml so its handy. I think that because of this, the PE environment doesn't or can't instantiate the network device. Is there a way to install/configure the network device through the command prompt in PE? If not, I read about adding in the answer file path(s) to drivers, but if I did it this way, would I have to start the process all over again (i.e. create new Autounattend.xml with the PnPcustomizations path included, re-run the installation on the reference machine, install all the applications, re-make the PE iso, reboot into new PE iso)? Any shortcuts, direction, or advice would be appreciated. Thanks!

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Libvirt / QEmu Machine Fails and Refuses Restart Because of Memory Allocation Errors

- by Elmar Weber

I'm having a problem with libvirt. On a system restart all virtual machines (VMs) are started without a problem and keep running. Then at some point in time a set of machines shuts down according to their log. When I try to restart the machine, I'm getting an error that the memory allocation failed, although more than enough memory is free. server ~ # free total used free shared buffers cached Mem: 16176648 16025476 151172 0 285432 950300 -/+ buffers/cache: 14789744 1386904 Swap: 0 0 0 server ~ # virsh start zimbra error: Failed to start domain zimbra error: Unable to read from monitor: Connection reset by peer server ~ # tail -n 4 /var/log/libvirt/qemu/zimbra.log LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 3072 -smp 2,sockets=2,cores=1,threads=1 -name zimbra -uuid d05ddb7a-83c4-a77b-d8bc-a322648520cf -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/zimbra.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -drive file=/var/lib/libvirt/images/zimbra.img,if=none,id=drive-ide0-0-0,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -netdev tap,fd=19,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:21:a9:ad,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -vnc 192.168.1.2:25 -k de -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char device redirected to /dev/pts/2 Failed to allocate 3221225472 B: Cannot allocate memory 2012-07-06 08:42:56.076+0000: shutting down server ~ # uname -a Linux server 3.2.0-26-generic #41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux The system is a Ubuntu 12.04 server. The problem seems to occurs since the last restart, which was due to a number of package upgrades and a kernel upgrade. I tried booting with the previous kernel, the problem persists. I was not able to pinpoint an exact event when the machines fail, they do it at nearly the same time. The last time a duplicity job was running, this was not always the case however. Any suggestions on how to debug this? Best regards, elm

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During Vista Repair - No operating system is listed.

- by Jack Marchetti

After a Windows update, my brother's Gateway computer loads to the "Step 3 of 3: 0%" and reboots. Safe Mode does not work. I placed a Vista DVD in the drive, and re-booted. (Note, this is my Vista DVD, not the Recovery/System disc that would come with a computer. Gateway does not give you CD's anymore. I believe they store recovery on a partition, but that partition has been wiped out). I chose "Repair Your Computer" I get a dialog box, but no operating system is listed. I'm then prompted to "Load Drivers". What drivers am I supposed to be loading here and where from? I placed a CD in the drive to "load drivers" but I don't see my DVD drive listed. All I saw where X:/Sources along with several Removable Media slots that were empty. On another screen I tried Startup Repair, which didn't do anything. I attempted to use System Restore - but it doesn't detect the hard drive. I'm guessing that I'm missing some sort of SATA driver and that is why the hard disk is not being found. Any ideas on this?

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Installing xampp on system that already have mysql

- by Charith

I'm rather new to PHP and xampp. I have a computer that has installed MySQL server and MySQL workbench as I was working with Java and NetBeans. Now I want to use my computer for developing PHP and other web stuff too. I installed xampp successfully. But when I'm trying to access phpMyAdmin, it gives me an error saying mysql server rejected its connection Actually I tried stopping my current MySQL service and installing it again. However xampp have a its own mysql server in its installation path too. I tried configuring config.inc.php to use my existing installation of MySQL which is on a separate path. But I failed. Can anyone please instruct me how to configure this xampp to use my existing MySQL server to do everything and ignore the installed one with itself? I don't want two MySQL services to run on my system and clash in future. I'll be glad if anyone can explain to me what is best to use when you're developing Java, PHP, C and all the stuff on the same machine. P.S.: I have been given a password for my existing MySQL sever (user = root) as we do it usually when installing MySQL alone.

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Moving a lotus database causes incoming mail failure

- by Logman

Hey all, I moved a couple lotus note databases to another hd (ran out of space) by using a directory link/pointer on the domino server. USed a text file with the .DIR ext with the desired new path etc... well that works fine. I open up a lotus notes client, use the id and then OPEN the database. The directory link works fine, the new location of the db is opened with no problems. We found out that we couldnt FORWARD any mail: We did the following to make it work: Goto menu FILE|MOBILE|EDIT CURRENT LOCATION Goto tab MAIL and enter the correct path for "Mail File:" example: it should read "mail\morespace\flabor" and not "mail\flabor" "morespace" = directory link/pointer we can forward and reply to emails fine after that fix. The problem is that the user has no incoming email. Domino is still trying to send the incoming mail of that user to its old db location "mail\flabor" instead of "mail\morespace\flabor". Delivery error saying user does not exist. Is this a cache problem? We have reset the server ("Q" at the prompt), though we have not completely shut it down though. Thanks Frank

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Haproxy and CNAME

- by user123354

I want to create a simple load balancer for the two servers. The problem is with CNAME records, I think. Let's say I have two the same applications on AppFog.com. app1.aws.af.cm and app2.aws.af.cm Here is my haproxy.cfg file: global maxconn 2000 daemon defaults mode http clitimeout 60000 srvtimeout 30000 contimeout 4000 option httpclose listen http_proxy bind [myip]:80 mode http stats enable stats auth user:passwd stats uri /stats balance source option httpchk option forwardfor server host01 app1.aws.af.cm:80 maxconn 300 check server host02 app2.aws.af.cm:80 maxconn 300 check But this only resolving IP for domain app1.aws.af.cm and app2.aws.af.cm, which obviously doesn't work if I open this IP in web browser. The problem is that AppFog doesn't have public IP for application (same as OpenShift). How to do that Haproxy to perform a proper connection between Load Balancer and this two servers? Example: This is real app - http://freechat.eu01.aws.af.cm Haproxy only resolves IP for this domain which is 46.51.204.8:80 Of course this IP will not show my application, only an error page. Sorry for my poor English.

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Debian, Apache2, CGI: paths issue

- by Bubnoff

I have a perl form email script on the servers cgi-bin directory ( /usr/lib/cgi-bin ). /etc/apache2/sites-enabled/000-default ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch AddHandler cgi-script cgi pl Order allow,deny Allow from all </Directory> The issue is with paths. html calls script here: <form name="Request" method="post" action="http://server-test.local/cgi-bin/formprocessorpro.pl" onsubmit="return checkWholeForm49874(this)"> The directory with the templates and configs is passed here: <input type="hidden" name="base_path" value="../contact" /> The path to this form is: http://server-test.local/formstest/contact.htm No matter what variation I try for the base_path I get an error from the formprocessor script that it can't find the directory: An error occurred when opening the Form Configuration File (../contact/form.cfg): No such file or directory. I need to move this script from an old server, configured by a previous sysadmin, to a new server. Since cgi-bin is automatically linked to /usr/lib/cgi-bin and linked such that the script resides: http://server-test.local/cgi-bin/formprocessorpro.pl I would imagine that, given that the templates are in the webroot in a directory called contact, the correct path would be: ../contact Any ideas? It's been awhile since I've messed with CGI. Bubnoff

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httpd 2.2.15 + suPHP + suExec + php5 = permission and information ?

- by Prix

Hi, i am currently playing around with suexec, suphp, php5 on my apache on slackware 13.1. Everything is installed and working properly but now i did like to got further into the directory permissions and at suphp settings and options available. initially i was planning to leave suphp disabled unless a virtualhost has it specified to be enabled but it does not seem to work, see sample: mod_php.conf which is included in my httpd.conf # # mod_php & mod_suPHP - PHP Hypertext Preprocessor module # # Load the PHP module: LoadModule php5_module lib/httpd/modules/libphp5.so # Load the suPHP module: LoadModule suphp_module lib/httpd/modules/mod_suphp.so <IfModule mod_php5.c> # Tell Apache to feed all *.php files through PHP. If you'd like to # parse PHP embedded in files with different extensions, comment out # these lines and see the example below. <FilesMatch \.php$> SetHandler application/x-httpd-php </FilesMatch> </IfModule> <IfModule mod_suphp.c> # This option tells mod_suphp if a PHP-script requested on this server (or # VirtualHost) should be run with the PHP-interpreter or returned to the # browser "as it is". suPHP_Engine off </IfModule> With the above first sample it makes suPHP and PHP not work if i comment out the php5 stuff but the module it will run just fine ... So my first question is, how could i possible make this setup work ? Leave suPHP disabled using php5 by default and if a virtualhost has suPHP enabled it will disable php5 and use suPHP. if any information is lacked here please let me know and i will update with any additional information you may need. Thanks in advance.

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Enabling CURL on Ubuntu 11.10

- by Afsheen Khosravian

I have installed curl: sudo apt-get install curl libcurl3 libcurl3-dev php5-curl and I have updated my php.ini file to include(I also tried .so): extension=php_curl.dll To test if curl is working I created a file called testCurl.php which contains the following: <?php echo ‘<pre>’; var_dump(curl_version()); echo ‘</pre>’; ?> When I navigate to localhost/testCurl.php I get an error: HTTP Error 500 Heres a snippet from the error log: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626+lfs/php_curl.dll' - /usr/lib/php5/20090626+lfs/php_curl.dll: cannot op$ PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626+lfs/sqlite.so' - /usr/lib/php5/20090626+lfs/sqlite.so: cannot open sha$ [Sun Dec 25 12:10:17 2011] [notice] Apache/2.2.20 (Ubuntu) PHP/5.3.6-13ubuntu3.3 with Suhosin-Patch configured -- resuming normal operations [Sun Dec 25 12:13:46 2011] [error] [client 127.0.0.1] File does not exist: /var/www/css, referer: http://localhost/ [Sun Dec 25 12:13:46 2011] [error] [client 127.0.0.1] File does not exist: /var/www/css, referer: http://localhost/ [Sun Dec 25 12:13:46 2011] [error] [client 127.0.0.1] File does not exist: /var/www/css, referer: http://localhost/ [Sun Dec 25 12:13:46 2011] [error] [client 127.0.0.1] File does not exist: /var/www/css, referer: http://localhost/` Can anyone help me to get curl working? The problem was with the original test code. I used a new test file containing this and curl is now working: <?php ## Test if cURL is working ## ## SCRIPT BY WWW.WEBUNE.COM (please do not remove)## echo '<pre>'; var_dump(curl_version()); echo '</pre>'; ?>

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Mac creating files w/ wrong perms on samba share

- by geoffjentry

In my group, which is very heterogeneous in terms of machines, we use a samba share to collaborate on files and such. In all but one case, it works as expected (or at least close enough). The one exception is my boss' laptop, a snow leopard macbook air. On his desktop (also snow leopard), if he creates a file it ends up serverside with perms of 774, but when he creates it with the Air, the perms are 644. The key problem is the lack of group write permission on the laptop created files. What's really confusing is that everything that I've looked at on the two machines are identical - same version of OS X, same version of samba (3.0.25b-apple), same settings for the same software, etc. I can't imagine why one machine would be different than the other, but it is. To try to be complete w/ the description, here is the relevant portion of my smb.conf file: comment = my Share path = /path/to/share public = no writeable = yes printable = no force group = myshare directory mask = 0770 create mask = 0770 force create mode = 0770 force directory mode = 0770 EDIT: I looked at three more Macs and all of them worked as expected which leaves this one laptop the true oddball. This wasn't as good as a test as the others though, as they were all leopard.

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Uninstall php5 installed from source

- by diegomichel

I have tried to install php5 from source , and it worked... Then for some reason need to install the official packets, so i tried a make uninstall and for my surprise there is such make uninstall... so i tried delete all the installed files by hand. Then installed the official debian packages and it worked fine... till i need install sqlite module, which give me the following error: php --version PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/pdo_sqlite.so' - /usr/lib/php5/20090626/pdo_sqlite.so: undefined symbol: php_pdo_register_driver in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/sqlite.so' - /usr/lib/php5/20090626/sqlite.so: undefined symbol: php_pdo_register_driver in Unknown on line 0 PHP 5.3.1-5 with Suhosin-Patch (cli) (built: Feb 22 2010 22:46:05) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2009 Zend Technologies So i remember that manual install i did, and i think there is some old lib installed causing that problem, the bad thing is that there is not such make uninstall on the source code of php5... php-5.2.13 > make uninstall make: *** No rule to make target `uninstall'. Stop. I have tried reinstall and purge all php related packages via aptitude with not success. OS: Debian Squeeze. uname -a Linux desktop 2.6.32-trunk-amd64 #1 SMP Sun Jan 10 22:40:40 UTC 2010 x86_64 GNU/Linux Any idea how to fix that?

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Permission issue for apache

- by Aamir Adnan

Environment Details: Amazon Ec2 Ubuntu 12.04 Django + mod_wsgi + python 2.6 web server: apache2 I have mounted a 10GB ebs volume to an instance to /mnt/ebs1/. After mounting the volume and formatting, I have placed all my project files in /mnt/ebs1/project. the wsgi file is in /mnt/ebs1/project/apache/django.wsgi. The content of wsgi file is: import os, sys sys.path.insert(0, '/mnt/ebs1/project') sys.path.insert(1, '/mnt/ebs1') os.environ['DJANGO_SETTINGS_MODULE'] = 'project.configs.common.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() My httpd.conf file looks as: LoadModule wsgi_module /usr/lib/apache2/modules/mod_wsgi.so WSGIPythonHome /usr/bin/python2.6 WSGIScriptAlias / /mnt/ebs1/project/apache/django.wsgi <Directory /mnt/ebs1/project> Order allow,deny Allow from all </Directory> <Directory /mnt/ebs1/project/apache> Order allow,deny Allow from all </Directory> Alias /static/ /mnt/ebs1/project/static/ <Directory /mnt/ebs1/project/static> Order deny,allow Allow from all </Directory> The above configurations gives me Forbidden: You don't have permission to access / on this server. I tried to find the user which is running apache using ps aux which is www-data and has group www-data. I have tried to change the ownership of /mnt/ebs1 and its subdirectories using chown -R www-data:www-data /mnt/ebs1 but that still does not solve the problem. Can any one tell me what I am doing wrong or have missed?

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Apache process consumes too much CPU

- by Niro

I have an ubuntu apache/php server running php doing appx 100 hits/sec and a PHP cron running in the background. I get occasionally high CPU load on one of the Apache processes which stays high regardless of traffic or cron activity. It seems to me that its stuck in some kind of loop or something. Below you will find the top and strace info. How can I find where the bad code is and what causes this? top - 14:45:24 up 3 days, 3:38, 1 user, load average: 5.10, 5.88, 5.85 Tasks: 163 total, 5 running, 158 sleeping, 0 stopped, 0 zombie Cpu(s): 47.8%us, 18.5%sy, 0.0%ni, 10.2%id, 0.0%wa, 0.0%hi, 1.8%si, 21.6%st Mem: 7885012k total, 3858484k used, 4026528k free, 177444k buffers Swap: 0k total, 0k used, 0k free, 1037868k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 10736 www-data 20 0 769m 559m 478m R 69 7.3 29:08.30 apache2 10844 www-data 20 0 824m 601m 492m S 17 7.8 4:37.90 apache2 1016 root 20 0 242m 25m 4628 S 6 0.3 162:07.93 scalarizr 9030 www-data 20 0 879m 619m 492m S 4 8.0 5:06.82 apache2 20216 www-data 20 0 747m 228m 170m S 4 3.0 0:01.94 apache2 10807 www-data 20 0 814m 584m 492m S 3 7.6 4:54.10 apache2 10455 www-data 20 0 831m 574m 492m S 3 7.5 4:32.65 apache2 10495 www-data 20 0 849m 592m 492m S 3 7.7 4:41.10 apache2 10884 www-data 20 0 840m 581m 492m S 3 7.6 4:25.06 apache2 ^CProcess 10736 detached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 74.55 0.148052 1 109755 gettimeofday 25.36 0.050370 0 164634 clock_gettime 0.09 0.000178 0 54878 poll ------ ----------- ----------- --------- --------- ---------------- 100.00 0.198600 329267 total root@ec2-67-202-54-36:~# ^C

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502 Bad Gateway error after failed requests using Passenger

- by Nicolas Buduroi

I've got a staging server running nginx 1.0.5 using Rails 3.1 under Passenger 3.0.9. The problem is that a request sent just after one where there's an application error return 502 Bad Gateway. To test it I've set up a simple controller with an action that just raise a dummy exception. One request will show the Rails error message and the next one will show nginx 502 Bad Gateway error, then it goes back to the Rails application error, etc. While investigating this problem I've found out that load testing the application (which increase the number of application processes) make that issue disapear. That is until the extra processes are shutdown, then it reappear. I've tried setting the passenger_min_instances option, but doing so doesn't change anything and in this case each time an application error happen one instance is killed while after load testing all instances are kept alive. P.S.: Some people on my team told me that they've seen the 502 error even when there's no application error but I've not been able to reproduce that. Update: Just found out how to display the responses status codes using ab and most of them are 502!

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Where to get glib-config for Kubuntu?

- by Carl Smotricz

I'm trying to compile Midnight Commander on a KUbuntu 9.10 (Karmic) box with no root access. I've set up a directory under $HOME, downloaded the mc source package and various stuff required for building, such as autotools. I've unpacked the CONTENTS of all those packages into this working directory such that I have the usual ./usr, ./lib, ./etc hierarchy. I manage to get configure through a lot of tests, but I can't seem to fool it into finding glib. checking for glib-2.0... checking for glib-config... no checking for glib12-config... no checking for glib-config... no checking for GLIB - version >= 1.2.6... no *** The glib-config script installed by GLIB could not be found *** If GLIB was installed in PREFIX, make sure PREFIX/bin is in *** your path, or set the GLIB_CONFIG environment variable to the *** full path to glib-config. configure: error: Test for glib failed. GNU Midnight Commander requires glib 1.2.6 or above. My system has glib installed: /lib/libglib-2.0.so.0 /lib/libglib-2.0.so.0.2200.3 ... and I've also downloaded and unpacked the glib package into my working directory: libglib2.0-0_2.22.2-0ubuntu1_i386.deb libglib2.0-dev_2.22.2-0ubuntu1_i386.deb ... but still the elusive glib-config is nowhere to be found. It's not in any debian package for Karmic, either. So I'd appreciate any help getting over this hurdle. Please note, again, that I don't have root, so I can't just merrily apt-get stuff.

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knife on Windows inconsistently reads ~\.ssh\knife.rb on Management Workstation

- by gWaldo

I am implementing a new instance of (Open-source v10.12) Chef in an existing environment. Currently the environment is mostly Windows, but more Linux is being introduced. I have used Chef in a previous gig, however that was a *nix-only environment. Because this is a primarily-Windows environment, my main workstation is Windows 7 (x64), and I use Powershell as my main terminal. I created a ~\.chef directory, populated with a knife.rb and my client.pem file. When I run knife client list from ~, I get the expected results. I keep my work in Dropbox just in case my laptop should fail or be stolen. When I run knife client list from the repo directory (C:\Users\waldo\Dropbox_company\projects\chef`), I get ERROR: Your private key could not be loaded from C:/home/waldo/.chef/waldog.pem Check your configuration file and ensure that your private key is readable (Note that the path is incorrect) This is the progression as I walk up the tree towards my ~ running knife client list: C:\Users\waldo\Dropbox\_company\projects\ => Above error C:\Users\waldo\Dropbox\_company\ => Above error C:\Users\waldo\Dropbox\ => It works! (Expected results) C:\Users\waldo\ => Expected results C:\Users\waldo\Documents\ => Expected Results C:\Users\waldo\Documents\GitHub => Expected Results C:\Users\waldo\Documents\GitHub\aProject\ => Expected Results What. The. Eff! Now, I know that I can add -c path\to\knife.rb, but that's a HUGE PITA. Question is: Why is knife inconsistently reading my ~\.chef\knife.rb, and how can I get around that without incurring carpal tunnel?

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Adding gcc 4.9 as a compiler option in Xcode

- by user2129150

I asked this question on StackOverflow, but it's pretty much stagnant. Sorry if this is considered a repost/double-post. I just installed gcc 4.9 (with C11 support), and want to add it to Xcode 4.6.3's build options as a compiler option. I ran make and make install, and the packages are all there (under /usr/bin/gcc. Running gcc --version confirms that gcc 4.9 is installed rather than an older version. When I go into an existing Xcode project's build settings, the only compiler options available are Apple LLVM compiler 4.2 LLVM GCC 4.2 Other... Clearly, GCC 4.9 would have to be added using the "Other..." option, although I'm not sure how. I've tried inputting the path to gcc (/usr/bin/gcc), although the default value for other isn't a path at all: com.apple.compilers.llvmgcc42. I've also tried following the instructions from the answer to this question as well, but the machine I'm on doesn't have the /Developer directory at all, since I believe Apple integrated the developer tools that required (and created) this directory into Xcode. How do I add gcc 4.9 as a compiler option in Xcode?

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Prevent master to fall back to master after failure

- by Chrille

I'm using keepalived to setup a virtual ip that points to a master server. When a failover happens it should point the virtual ip to the backup, and the IP should stay there until I manually enable (fix) the master. The reason this is important is that I'm running mysql replication on the servers and writes should only be on the master. When I failover I promote the slave to master. The master server: global_defs { ! this is who emails will go to on alerts notification_email { [email protected] ! add a few more email addresses here if you would like } notification_email_from [email protected] ! I use the local machine to relay mail smtp_server 127.0.0.1 smtp_connect_timeout 30 ! each load balancer should have a different ID ! this will be used in SMTP alerts, so you should make ! each router easily identifiable lvs_id APP1 } vrrp_instance APP1 { interface eth0 state EQUAL virtual_router_id 61 priority 999 nopreempt virtual_ipaddress { 217.x.x.129 } smtp_alert } Backup server: global_defs { ! this is who emails will go to on alerts notification_email { [email protected] ! add a few more email addresses here if you would like } notification_email_from [email protected] ! I use the local machine to relay mail smtp_server 127.0.0.1 smtp_connect_timeout 30 ! each load balancer should have a different ID ! this will be used in SMTP alerts, so you should make ! each router easily identifiable lvs_id APP2 } vrrp_instance APP2 { interface eth0 state EQUAL virtual_router_id 61 priority 100 virtual_ipaddress { 217.xx.xx.129 } notify_master "/etc/keepalived/notify.sh del app2" notify_backup "/etc/keepalived/notify.sh add app2" notify_fault "/etc/keepalived/notify.sh add app2” smtp_alert }

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Which events specifically cause Windows 2008 to mark a SAN volume offline?

- by Jeremy

I am searching for specific criteria/events that will cause Windows 2008 to mark a SAN volume as offline in disk management, even though it is connected to that SAN volume via FC or iSCSI. Microsoft states that "A dynamic disk may become Offline if it is corrupted or intermittently unavailable. A dynamic disk may also become Offline if you attempt to import a foreign (dynamic) disk and the import fails. An error icon appears on the Offline disk. Only dynamic disks display the Missing or Offline status." I am specifically wondering if, on the SAN, changing the path to the disk (such as the disk being presented to the host via a different iSCSI target IQN or a different LUN #) would cause a volume to be offlined in disk management. Thanks! Edit: I have already found two reasons why a disk might be set offline, disk signature collisions and the SAN disk policy. Bounty would be awarded to someone who can find further documented reasons related to changes in the volume's path. Disk signature collisions: http://blogs.technet.com/b/markrussinovich/archive/2011/11/08/3463572.aspx SAN disk policy: http://jeffwouters.nl/index.php/2011/06/disk-offline-with-error-the-disk-is-offline-because-of-a-policy-set-by-an-administrator/

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