Discuss January 2011

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289 discussions

Re: [CentOS] happy new year :D i have a problem to upgrade my glibc to 2.7 on centos 5.5
by Max Haann 02 Jan '11

02 Jan '11

>Build the src.rpm on your own system using "rpm --rebuild". The results won't require glibc 2.7. Thanks for your time and help Gordon. I rebuild it on centos 5.5, it works like a charm :D Step1:download nasm src.rpm from official site Step2:install ghostscript/texinfo from yum Step3:rpm -I --momd5 nasm src.rpm Step4:rpmbuild -bb nasm.spec NamoBhagavan Max Haann

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Anaconda hangs using 100% CPU
by cpolish＠surewest.net 02 Jan '11

02 Jan '11

Dear all, I have been struggling with my first PXEboot today, using a kickstart with packages served over http on the local network. The details: - Anaconda is using 100% CPU - CentOS 5.5 i386 downloaded yesterday - .iso md5sums checked out good - 0 network errors showing (ifconfig) - console 1 displays: "Installing httpd-..." Done [508/782]" - It appears to be trying to install samba for the last hour: the last 2 lines of the Apache access_log on the package server: "GET /centos/5.5/os/i386/disc2//CentOS/ httpd-2.2.3-43.el5.centos.i386.rpm HTTP/1.1" 200 1277591 "GET /centos/5.5/os/i386/disc2//CentOS/ samba-3.0.33-3.28.el5.i386.rpm HTTP/1.1" 200 17016117 - The last line of /tmp/anaconda.log shows: DEBUG : Adding Package opensp-1.5.2-4.i386 in mode u - The last line of /mnt/sysimage/root/install.log.syslog shows: useradd[2304]: new user: name=apache, ... - I have searched for similar issues at bugs.centos.org without success - The system is still alive, console 2 is responsive so I can (hopefully) debug this if someone will point me in the right direction - kickstart file: http://pastebin.com/mQxx42wf Help! -- Charles Polisher

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virtual machines refuse to start up
by benedict dcunha 01 Jan '11

01 Jan '11

Dear All, am new to xen and recently implemented it. i had some issues initially but googling arround and some wise replies from you guys out there managed to clear them. now I have 2 virtual machines on my xen domains one is windows 2003 and other windows2008 both the virtual machines were working fine for about a week jus 2 days back we had a change in our network . i mean we rearanged the vlans so the linux host server which runs xen was moved to another vlan then i fould that i could not ping the linux xen host . on further investigations i fould that there was another file created for my ethernet device ifcfg-eth1.bak and also ifcfg-eth1 existed. the ifcfg-eth0 existed as before the right config for my eth1 was there in ifcfg-eth1.bak file so i renamed the ifcfg-eth1.bak to ifcfg-eth1 and did a network service restart and then found that i could reach the xen host server . but fould that one of my virtual server was shut i tried to restart it in virt-manager but it gave a error although the other virtual machine was running so i tried to restart my linux xen host server and then found that the virtual server which was running also had not started . so i tried to start it and it would not start and after long time gives error here below i paste the error message googling arround did not lead me to any possible solution really would apprecite if any guys out there would advice and help thanks and regards simon ----------------------------- /var/messages log.... Jan 1 14:51:35 xenserver kernel: device vif19.0 left promiscuous mode Jan 1 14:51:35 xenserver kernel: type=1700 audit(1293882695.424:69): dev=vif19.0 prom=0 old_prom=256 auid=4294967295 ses=4294967295 Jan 1 14:51:35 xenserver kernel: xenbr1: port 4(vif19.0) entering disabled state Jan 1 14:51:36 xenserver avahi-daemon[3890]: Interface tap0.IPv6 no longer relevant for mDNS. Jan 1 14:51:36 xenserver avahi-daemon[3890]: Leaving mDNS multicast group on interface tap0.IPv6 with address fe80::9cab:81ff:fec4:b1e8. Jan 1 14:51:36 xenserver avahi-daemon[3890]: Withdrawing address record for fe80::9cab:81ff:fec4:b1e8 on tap0. Jan 1 14:51:36 xenserver kernel: xenbr1: port 3(tap0) entering disabled state Jan 1 14:51:36 xenserver kernel: device tap0 left promiscuous mode Jan 1 14:51:36 xenserver kernel: type=1700 audit(1293882696.060:70): dev=tap0 prom=0 old_prom=256 auid=4294967295 ses=4294967295 Jan 1 14:51:36 xenserver kernel: xenbr1: port 3(tap0) entering disabled state ------------------------ part of /var/log/xen/xend.log VmError: Device 5632 (vbd) could not be connected. Hotplug scripts not working. [2011-01-01 14:51:35 xend.XendDomainInfo 634] DEBUG (XendDomainInfo:2189) XendDomainInfo.destroy: domid=19 [2011-01-01 14:51:35 xend.XendDomainInfo 634] INFO (XendDomainInfo:2330) Dev 768 still active, looping... [2011-01-01 14:51:35 xend.XendDomainInfo 634] INFO (XendDomainInfo:2330) Dev 5632 still active, looping... [2011-01-01 14:51:35 xend.XendDomainInfo 634] INFO (XendDomainInfo:2330) Dev 768 still active, looping... [2011-01-01 14:51:35 xend.XendDomainInfo 634] INFO (XendDomainInfo:2330) Dev 5632 still active, looping... [2011-01-01 14:51:35 xend.XendDomainInfo 634] INFO (XendDomainInfo:2330) Dev 768 still active, looping... [2011-01-01 14:51:35 xend.XendDomainInfo 634] INFO (XendDomainInfo:2330) Dev 5632 still active, looping... [2011-01-01 14:51:36 xend.XendDomainInfo 634] DEBUG (XendDomainInfo:2114) UUID Created: True [2011-01-01 14:51:36 xend.XendDomainInfo 634] DEBUG (XendDomainInfo:2115) Devices to release: [], domid = 19 [2011-01-01 14:51:36 xend.XendDomainInfo 634] DEBUG (XendDomainInfo:2127) Releasing PVFB backend devices ... [2011-01-01 14:51:36 xend 634] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vbd/19/5632/hotplug-status. [2011-01-01 14:51:36 xend 634] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vbd/19/5632/hotplug-status. [2011-01-01 14:51:36 xend 634] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vbd/18/5632/hotplug-status. [2011-01-01 14:51:36 xend 634] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vbd/19/5632/hotplug-status. [2011-01-01 14:51:36 xend 634] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vbd/18/5632/hotplug-status. [2011-01-01 14:51:36 xend 634] DEBUG (DevController:509) hotplugStatusCallback /local/domain/0/backend/vbd/19/5632/hotplug-status. -------------- /var/log/xen/xen-hot-plug.log Nothing to flush. stat: cannot stat `/dev/scd0': No such file or directory stat: cannot stat `/dev/scd0': No such file or directory if you need more information it will be my utmost pleasure to provide you the same

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remove newlines / perl /concise example
by ken 01 Jan '11

01 Jan '11

Thanks for the previous tips and suggestions. Here's a more concise example: Input file: <aaaa> <bbbb> <cccc> <dddd> I want everything on one line, i.e., remove all newlines. Like so: <aaaa><bbbb><cccc><dddd> Simple perl code: #!/usr/bin/env perl # Remove newlines from a file in two ways: # (1) Just "chomp" them; # (2) Replace them with a space. # Open input file for reading only. my $infilename = "/tmp/newline-test-in"; open(my $in, "<", "$infilename") or die "Can't open file \"$infilename\": $!"; # Open output file for writing only. my $outfilename = "/tmp/newline-test-out"; open (my $out, ">", "$outfilename") or die "Can\'t open $outfilename for writing. $!"; # Comment out either, both, or neither of the below "binmode" == no joy #binmode $in; binmode $out; while (<$in>) { # Neither of the two commands below works as expected. chomp; # remove trailing newline. # s/\n/ /; # replace newline with space print $out $in; } # Close input file. close $in or die "Error closing $in: $!"; # Close output file. close $out or die "Error closing output file $out: $!"; ### end of perl script Run this, commenting in/out whatever, and output file is consistently this: GLOB(0x8ad3c28)GLOB(0x8ad3c28)GLOB(0x8ad3c28)GLOB(0x8ad3c28)

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set privoxy to rewrite http to https
by S Mathias 01 Jan '11

01 Jan '11

I use the KB SSL Enforcer https://chrome.google.com/extensions/detail/flcpelgcagfhfoegekianiofphddcko… so i could browse the net safer [i mean webserver <-> me] with using https, if available. The problem is: e.g.: facebook... if i go to https://www.facebook.com/ that's ok, it's https. But all the links are "http" on the site.. if i click on a "http" link, it will request the page on "http", and THEN it switches to "https". Heres the problem. How/where could i write a privoxy rule, to rewrite all the "http" links to "https"? [so that it would by always trully over https] Are there any "general" rules (with privoxy), so that i don't have to write rules / site? with the KB SSL Enforcer its always first http, then it recognizes that the site can do https, than it switches to it. But i want to "bypass" the http part. thank you for any information Happy New Year!

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happy new year :D i have a problem to upgrade my glibc to 2.7 on centos 5.5
by Max Haann 01 Jan '11

01 Jan '11

Happy new year :D i have just installed centos 5.5 on my vmware to test my server,i found that i need nasm x64 to compile my assembly code,the yum database only has 0.98 version which does not support 64bit. the nasm version 2(rpm from offcial site) requires glibc 2.7, i know its a core component, but is there a way to upgrade it without break system? thanks for your time :D NamoBhagavan Max Haann

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Dual or quad fast ethernet NICs (that work with CentOS)
by robert mena 01 Jan '11

01 Jan '11

Hi, I am looking for dual or quad fast ethernet NICs that work with CentOS. There is no need for high performance so regular fast/pci is ok.

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query regarding virtual machine space increase
by benedict dcunha 01 Jan '11

01 Jan '11

Dear All, I am sorry for this post if at all i used the wrong forum but I guess someone out there will be there to advise me and help me out and would be really apprecite and be grateful i have new to xen and has setup my first virtual machine I have a centos 5.5 xen server working perfect and have installed a virtual 2008 server and its working fine . Actually i created the virtual machine in manager installation wizard with the following option. in the storage option I selected File (disk Image) the location /var/lib/xen/images/image.img ( I have about 400gb free in /var partition) size i choose 15000 mb deselect the checkbox ... allocate entire virtual disk now since the below warning says if you dont allocate the entire disk now , space will be allocated as needed while the virtual machine is running . The 2008 server was installed perfect. and also I did install some software and c drive showed me 800 mb free now I tried to copy 1 gb file to my virtual machine and it said I dont have space . Now I was thinking that additional space would be allocated on the fly as the note says above i am just wondering why its not allocating more space or what would be the ideal way now for allocating more space if I wanna create a new virtual machine choosing the block device( partition option) is the correct way to avoid this problem?? I actually would like the virtual machine to use as much as it requires as long as there is free space on my local disk apprecite your kinfd advice and help regards simon

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DHCPD troubleshooting..? help!
by Roland RoLaNd 01 Jan '11

01 Jan '11

Hello, i've setup dhcp as such: yum install dhcp vim /etc/dhcpd.config # # DHCP Server Configuration file. # see /usr/share/doc/dhcp*/dhcpd.conf.sample #ddns-update-style interim; ddns-update-style interim; ddns-rev-domainname "in-addr.arpa"; ignore client-updates; subnet 192.168.75.0 netmask 255.255.255.0 { option routers 192.168.75.25; #Default Gateway option subnet-mask 255.255.255.0; option domain-name "home.local"; option domain-name-servers 8.8.8.8; #option netbios-name-servers 192.168.0.2; #WINS Server range dynamic-bootp 192.168.75.26 192.168.75.100; #DHCP Range to assign default-lease-time 43200; max-lease-time 86400; } more /etc/sysconfig/dhcpd # Command line options here DHCPDARGS=eth0 tail -f /var/log/messages: Jan 1 01:25:58 dnalor dhcpd: DHCPREQUEST for 192.168.25.100 (192.168.25.25) from 00:23:4b:cc:6c:b7 (oli) via eth0 Jan 1 01:25:58 dnalor dhcpd: DHCPACK on 192.168.25.100 to 00:23:4b:cc:6c:b7 (oli) via eth0 Jan 1 01:26:16 dnalor dhcpd: Unable to add forward map from oli.home.local to 192.168.25.100: timed out any help? PS: i dont have named installed as i use the ISP's dns, may that be the cause? Thanks for your advice in advance and happy new year

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Discuss January 2011