Discuss June 2011

discuss@lists.centos.org

206 participants
141 discussions

text-mode system and /media
by Kenneth Porter 07 Jun '11

07 Jun '11

I'm running a headless server, so no GUI, just ssh logins. I don't seem to have the mechanism that automounts USB drives to a subdirectory of /media, and from googling around I think that's a feature of a GUI-based system. What implements it? Right now I manually create a mountpoint in /mnt and then manually mount by label from /dev/disk/by-label after plugging the drive in. It would be convenient if the drive automounted when plugged in.

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bind-libs - key problem
by Tom Brown 07 Jun '11

07 Jun '11

Does anyone else notice anything wrong with the bind-libs package and its key? bind-libs-9.3.6-16.P1.el5.i386.rpm | 862 kB 00:00 warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 37017186 Public key for bind-utils-9.3.6-16.P1.el5.x86_64.rpm is not installed thanks

1 1

ftp problem?
by hadi motamedi 07 Jun '11

07 Jun '11

Dear All I cannot ftp to my centos server from MS Windows machine ,but ping and telnet are ok. I checked as the following : #chkconfig tftp on #setup After enabling tftp service, still the ftp is not ok but ping & telnet are ok. Can you please help me? Thank you

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Re: [CentOS] Grep: show me this line and the next N lines?
by Dotan Cohen 07 Jun '11

07 Jun '11

On Tue, Jun 7, 2011 at 05:26, Kenneth Porter <shiva(a)sewingwitch.com> wrote: > --On Tuesday, May 31, 2011 1:08 AM +0300 Dotan Cohen <dotancohen(a)gmail.com> > wrote: > >> Can grep show the matching lines and the next N lines after a match? > > If I'm just inspecting a file I use less and the "/" command to search up > to the next occurrence of a regular expression. Use the "?" command to > search backwards. See the man page for less for lots more options. > Thanks, Kenneth. I am familiar with the VIM keybindingsin less and man. I need something scriptable though. -- Dotan Cohen http://gibberish.co.il http://what-is-what.com

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regex question
by Joseph L. Casale 07 Jun '11

07 Jun '11

Hey guys, I am trying to extract a pattern from a downloaded html file. I only want the first match printed, problem is I don't know how to force sed to exit after printing the first match of a capture group. Anyone know the trick to manipulating {p;q;} to print a capture group? Thanks, jlc

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increase harddisk diskspace Failed to suspend LogVol00
by Manu 07 Jun '11

07 Jun '11

Hi, I want to increase my harddisk space and receive the following error # lvextend -l +323 /dev/VolGroup00/LogVol00 Extending logical volume LogVol00 to 48.97 GB device-mapper: reload ioctl failed: Invalid argument Failed to suspend LogVol00 Can you help me please? # fdisk -l Disk /dev/hda: 54.7 GB, 54759997440 bytes 255 heads, 63 sectors/track, 6657 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 13 104391 83 Linux /dev/hda2 14 5221 41833260 8e Linux LVM #pvdisplay --- Physical volume --- PV Name /dev/hda2 VG Name VolGroup00 PV Size 50.00 GB / not usable 31.81 MB Allocatable yes PE Size (KByte) 32768 Total PE 1599 Free PE 323 Allocated PE 1276 PV UUID OcT323-L3sk-r2dX-2qlC-lNuL-slEj-gJF0Ql # vgdisplay --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 8 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 49.97 GB PE Size 32.00 MB Total PE 1599 Alloc PE / Size 1276 / 39.88 GB Free PE / Size 323 / 10.09 GB VG UUID AeMGtt-Ieic-q0JQ-91LC-38Am-HCD5-sO4tle # lvdisplay --- Logical volume --- LV Name /dev/VolGroup00/LogVol00 VG Name VolGroup00 LV UUID FC0PHC-NNNS-ZRTB-HVCx-gGKg-f3vk-5qzbn1 LV Write Access read/write LV Status available # open 1 LV Size 38.88 GB Current LE 1244 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Logical volume --- LV Name /dev/VolGroup00/LogVol01 VG Name VolGroup00 LV UUID cnhEpj-deSS-3nPr-lVfE-mzZ4-4dLH-tTqzQR LV Write Access read/write LV Status available # open 1 LV Size 1.00 GB Current LE 32 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1

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Grep: show me this line and the next N lines?
by Dotan Cohen 07 Jun '11

07 Jun '11

Can grep show the matching lines and the next N lines after a match? For instance, I have a config file wit hthe following text: [Tag h1] foreground=#2e5a03 underline=double indent=0 weight=PANGO_WEIGHT_BOLD scale=2.25 I would ideally grep on "[Tag h1]" and have grep display the match and the next 5 lines so that I see all the content of the h1 section. Can this be done? Thanks! -- Dotan Cohen http://gibberish.co.il http://what-is-what.com

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Problem changing server on a LAN
by Timothy Murphy 07 Jun '11

07 Jun '11

I'm having great difficulty trying to change server on my home LAN. At present 192.168.2.2 is my server, running CentOS-5.6 and connecting to an ADSL modem. I want to change server to another CentOS machine, 192.168.2.5 . The problem is that I cannot get the computers on the system to forget the old server, even when it is completely disconnected, and the new server is connected to the modem. It seems extraordinarily difficult to get rid of the link to the old server. Even when all the machines are re-booted they still want to give 192.168.2.2 as their default gateway. Is this a problem often met in this kind of situation? I'm wondering if it would be simpler to give the old address to the new server? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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/etc/security/limits.conf : rss
by Christophe Caron 06 Jun '11

06 Jun '11

Hello, I run CentOS 5.6 on a Dell PowerEdge R815 with 256 GB of RAM. We use Sun Grid Engine to schedule jobs on this node. I want to limit the memory usage about 150 GB per process. So i use the /etc/security/limits.conf configuration file. I test this configuration with some tools with a lower GB limit (about 2 or 4 GB), and it works ! But, at least one process (oases - a bioinformatics tool) bypass this limitation and use always 240 GB of memory (the last run) !! /etc/security/limits.conf ... # * hard rss 150000000 * soft rss 150000000 # * hard as 150000000 * soft as 150000000 # ... # uname -r 2.6.18-238.9.1.el5.centos.plus Any idea ? Thanks -- Christophe Caron Station Biologique - Service Informatique et Génomique christophe.caron(a)sb-roscoff.fr Place Georges Teissier - 29680 Roscoff tél: +33 (0)2 98 29 25 43 / tél: +33 (0)6 07 83 54 77 fax: +33 (0)2 98 29 23 24 Analysis and Bioinformatics for Marine Sciences Platform http://abims.sb-roscoff.fr/

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php 5.3 packages
by Jakub Jedelsky 06 Jun '11

06 Jun '11

Hi all, I want to install php 5.3 (php53-* packages) on customer's server with Centos 5.6 but I see that there is only a few packages. Is there any repo with compatibile packages (for php 5.1 I we can usually use rpforge)? Thnaks, JJ

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Discuss June 2011