Discuss September 2011

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268 participants
252 discussions

gnumeric
by ken 12 Sep '11

12 Sep '11

Where do I find a gnumeric rpm? I must not have enough repos listed. (I recently had to rebuild my system pretty much from scratch. :( )

3 3

persistent custom lines in /etc/hosts?
by wwp 12 Sep '11

12 Sep '11

Hello there, I've edited /etc/hosts to add few custom IP/hostnames couples. After each reboot, I have to add them again. I've then added /etc/sysconfig/network/hosts, but it seems to ignore it or at least ignore 127.0.0.1 assignments I'm doing in it. Is there a mechanism I'm not aware of, or doing things wrong to make my custom IP/hostnames assignments permanent after network services restart? Regards, -- wwp

2 2

CentOS 6: ethernet "ifconfig up" failure
by Michael D. Berger 12 Sep '11

12 Sep '11

On my CentOS 6 partition of my laptop: First note that for this test, NetworkManager is not running because I did: chkconfig --del NetworkManager and then rebooted. Here is my ifcfg-eth0: DEVICE="eth0" NM_CONTROLLED="no" ONBOOT=no HWADDR=xx:xx:xx:xx:xx:xx TYPE=Ethernet BOOTPROTO=none IPADDR=192.168.2.5 PREFIX=24 GATEWAY=192.168.2.1 DNS1=192.168.2.1 DNS2=192.168.2.1 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx I reboot to level3, do startx (to KDE 4) then do: # ifconfig eth0 up # ping 192.168.9.1 connect: Network is unreachable If I edit ifcfg-eth0 to set ONBOOT=yes and reboot, I get a proper connection. So why is "ifconfig eth0 up" not connecting? Thanks for your help. Mike.

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KVM on CentOS 6
by Emmett Culley 12 Sep '11

12 Sep '11

Today I suddenly have two VMs that have read only file systems. The host is CentOS 6, as are the two VMs with this problem. The first symptom was on a new VM I installed ISPConfig onto. I got through the entire process with only a dependency issue between php-pecl_apc and php-accelerator. After completing the installation I noticed some funny things, but I assumed it might be the addition of quotas and remounting with quotas on. so I didn't think much of it and rebooted the VM. It failed to reboot because the file system should not be switched to read-write. Since it was a new VM and installing ISPConfig was an experiment, I just wiped it with the intention of starting over. While I was creating another clone of a CentOS 6 image on the host, I looked into one of the other VMs running on that host, which has been up and running for 47 days. Same problem, without rebooting. For example running yum give this: [root@dev log]# yum update Loaded plugins: fastestmirror, presto Cannot open logfile /var/log/yum.log Could not create lock at /var/run/yum.pid: [Errno 30] Read-only file system: '/var/run/yum.pid' Another app is currently holding the yum lock; waiting for it to exit... Traceback (most recent call last): File "/usr/bin/yum", line 29, in <module> yummain.user_main(sys.argv[1:], exit_code=True) File "/usr/share/yum-cli/yummain.py", line 254, in user_main errcode = main(args) File "/usr/share/yum-cli/yummain.py", line 103, in main show_lock_owner(e.pid, logger) File "/usr/share/yum-cli/utils.py", line 106, in show_lock_owner ps = get_process_info(pid) File "/usr/share/yum-cli/utils.py", line 61, in get_process_info if (not os.path.exists("/proc/%d/status" % pid) or TypeError: %d format: a number is required, not str ------------------------------------ And running mount gives this: [root@dev log]# mount /dev/mapper/VolGroup-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) /dev/sda1 on /boot type ext4 (rw) /web on /NFS/web type none (rw,bind) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) nfsd on /proc/fs/nfsd type nfsd (rw) /etc/named on /var/named/chroot/etc/named type none (rw,bind) /etc/named.rfc1912.zones on /var/named/chroot/etc/named.rfc1912.zones type none (rw,bind) /usr/lib64/bind on /var/named/chroot/usr/lib64/bind type none (rw,bind) /etc/named.iscdlv.key on /var/named/chroot/etc/named.iscdlv.key type none (rw,bind) /etc/named on /var/named/chroot/etc/named type none (rw,bind) /usr/lib64/bind on /var/named/chroot/usr/lib64/bind type none (rw,bind) mount: warning: /etc/mtab is not writable (e.g. read-only filesystem). It's possible that information reported by mount(8) is not up to date. For actual information about system mount points check the /proc/mounts file. ------------------------------- The VM is running, serving web pages and responding to DNS queries, but it is clear, given my earlier experience with the ISPConfig machine, that I won't be able to reboot it until I figure out the problem. Now that I am looking at the output from the mount command I wonder where all those named related mounts came from. Could it be webmin. Both VMs have webmin installed. Mostly to allow be to configure bind, since system-config-bind is no more. Anybody have any idea what happened, or better yet, any ideas on how to fix this? Emmett

3 6

XORG and LCD Projector
by Andrew 'Dewa' B. Osmond 11 Sep '11

11 Sep '11

dear guys, I have a problem between my CentOS 5.5 (on Axioo notebook) and LCD Projector. When I connect my notebook to LCD Projector, it can detect my notebook. But when I press Fn + F7 to activate dual monitor between my notebook and LCD Projector it goes to blank screen. FYI, the LCD Projector is NEC but I don't know the series. I've tried to change display using dual head monitor but it has no effects. Do I need some driver?? and this is my xorg configuration : Section "Device" Identifier "Videocard0" Driver "openchrome" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 Modes "1280x800" "1024x768" "800x600" "640x480" EndSubSection EndSection Hope you guys can help me. Thanks. Andrew.

6 8

Centos NFS-Utils
by Rita 11 Sep '11

11 Sep '11

Just wondering, We have been using RHEL 6.1 for a while and its NFS-utils support the fsc option for caching. Will Centos 5.6(or .7) ever support this feature? -- --- Get your facts first, then you can distort them as you please.--

1 0

Postfix Question - CentOS 6
by John Hinton 10 Sep '11

10 Sep '11

I'm trying to figure out if this is a bug... I'm running Postfix with Dovecot Authentication and have Amavisd-new as the front end. I fought with the install and in particular being able to send mail.... Auth failed. Hours of looking through all the config files yielded nothing... so I started Googling about. I finally found a comment at the bottom of a blog to check permissions on: /var/spool/postfix/private/auth It seems this must be owned by postfix but it was owned by root. So, can somebody check to see if this is there in a CentOS 6 Postfix install where Amavis is not installed? And if so, what are the default permissions? Thanks, John Hinton

3 4

Re: [CentOS] CentOS 6 Installation on Thinkpad X220
by Janne Nyman 10 Sep '11

10 Sep '11

> Hi > > unless you are doing this for a specific reason (ie eval/training) would > advise that centos is not really a laptop distribution despite what > redhat may try to suggest. > > best desktop/laptop in my opinion is mageia > > regards peter >> I am trying to install CentOS 6 x86_64 on a Lenovo Thinkpad x220. >> >> During the installation it asks me to insert a driver. >> >> Has anyone done this successfully? >> > > Hi Peter, thanks for your feedback. I guess the reason I am doing it, is as I love the way CentOS works, I.e. the stability and performance. I am currently running it on a ThinkPad Edge 11 and all seems to work great. Just looks like the e1000e NIC driver is not working with the kernel in 6.0. I have also tried this with RHEL 6.1 but that also gets me stuck at the booting of the x220. I have tried to understand how the "load driver disk" works with CentOS and RHEL based systems, but I am failing to get it working. I have got my hands on the e1000e driver and patched the initrd but still no go. That's why I wanted to check if anyone else has got this working :) Anyone else? Kind regards, Janne Nyman E: jnyman(a)jbtec.org

7 7

Conga problems
by James Edwards 09 Sep '11

09 Sep '11

Hi all, I've spent the past little while attempting to setup Conga on a two node CentOS 6 cluster. While I do have the cluster up and running, I'm running into problems attempting to start services through luci on either node. A little background information: -Both nodes have dual NICs, one interface on each node will be used for the WAN, the other is a private gigabit crossover link between the nodes. -Both nodes are in /etc/hosts -The nodes are up to date, and both are running x86_64 -SELinux and iptables have both been disabled -To get the cluster running, luci, ricci, and their dependencies were installed, and 'service start ricci', then 'service start luci' where issued. ricci created certs when first run. The problem is: I've successfully created an IP resource through luci, but when attempting to start it through 'Services', it fails to start and I get the following error in /var/log/luci/luci.log: 07:32:33,648 INFO [luci.controllers.cluster] User "root" started service "ip failover" in cluster "MailCluster" 07:32:33,654 ERROR [luci.lib.ricci_communicator] Unable to establish an SSL connection to mail01.mydomain.com:11111: _ssl.c:480: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol Traceback (most recent call last): File "/usr/lib/python2.6/site-packages/luci/lib/ricci_communicator.py", line 56, in __init__ self.ss.connect((self.__hostname, self.__port)) File "/usr/lib64/python2.6/ssl.py", line 309, in connect self.do_handshake() File "/usr/lib64/python2.6/ssl.py", line 293, in do_handshake self._sslobj.do_handshake() SSLError: [Errno 1] _ssl.c:480: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol When I connect to port 11111 using openssl, I receive 'Clients_SSL_certificate_required' and the connection closes. Also, netstat reports: tcp 0 0 :::11111 :::* LISTEN 9745/ricci I hope I've provided enough information, but any input or thoughts would be greatly appreciated. Thanks, James

3 4

Emulate RHEV On CentOS
by Gene Poole 09 Sep '11

09 Sep '11

Anyone familiar with RHEV (Red Hat Enterprise Virtualization)? Any ideas on how to emulate this on CentOS? Thanks, Gene Poole

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Discuss September 2011