Discuss February 2015

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153 participants
159 discussions

repositories
by Pol Hallen 27 Feb '15

27 Feb '15

Hi all :-) This is my first post: I'm coming from debian/bsd world. A question about repositories: minimal installation (version 7) provides: CentOS-Base.repo CentOS-CR.repo CentOS-Debuginfo.repo CentOS-fasttrack.repo CentOS-Sources.repo CentOS-Vault.repo I known there are others repositories as: RPMForge, EPEL, REMI, ATrpms, Webtatic (and maybe also others) so, what kind of these repositories are? Does they repositories substitute packages from main? Or only adding new packages? thanks for advices and help! Pol

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Re: [CentOS] Easy way to strip down CentOS?
by James B. Byrne 27 Feb '15

27 Feb '15

On Wed, February 25, 2015 14:18, Brian Mathis wrote: > > I don't think there's a single yum command that lets you roll > back to the packages the were installed at a given point in > time. I also don't think that this would get you back to the > *exact* system as it was. # yum history rollback 1 # return to first post-update state. # yum history undo 1 # undo first update; return to initial state. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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L2TP over IPSEC?
by CS DBA 27 Feb '15

27 Feb '15

Hi All; anyone have any info on setting up a L2TP over IPSEC client vpn connection? Thanks in advance

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C7, igb and DCB support for pause frame ?
by Laurent Wandrebeck 27 Feb '15

27 Feb '15

Hi there, I’m working on deploying our new cluster. Masters have 5×1gbps (i210 and i350, thus using igb.ko), configured with mtu 9000, 802.3ad. Works fine *but* I can’t get DCB working (pause frame, aka flow control, which is supported by and enabled on our switches). [root@master2 ~]# dcbtool gc eno1 dcb Command: Get Config Feature: DCB State Port: eno1 Status: Device not capable (I get the same with ELRepo 5.2.15 kmod). Intel datasheet says flow control is available. Can’t find much about it on the web or in kernel git repo. Could someone give me a hand ? Regards, Laurent.

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Re: [CentOS] scp -rp behavior
by Richard 27 Feb '15

27 Feb '15

------------ Original Message ------------ > Date: Thursday, February 26, 2015 18:45:34 -0600 > From: Valeri Galtsev <galtsev(a)kicp.uchicago.edu> > To: CentOS mailing list <centos(a)centos.org> > Subject: Re: [CentOS] scp -rp behavior > > > On Thu, February 26, 2015 6:34 pm, Mark LaPierre wrote: >> Hey all, >> >> I'm trying to copy configuration files from my old CentOS 6.6 32 >> bit machine to my new CentOS 6.6 64 bit machine. >> >> On my 32 bit machine: >> >> [mlapier@mushroom ~]$ ifconfig >> eth0 Link encap:Ethernet HWaddr 00:19:DB:E5:4E:9F >> inet addr:192.168.15.105 >> >> When I issue this command on my new 64 bit machine, >> 192.168.15.101: >> >> scp -pr mlapier(a)192.168.15.105: /home/mlapier/.thunderbird >> /home/mlapier/.thunderbird > > How about escaping dot (with backslash) for the remote machine, or > just giving the whole path for remote machine in quotes: > > scp -pr mlapier(a)192.168.15.105:"/home/mlapier/.thunderbird" > /home/mlapier > > ? > > Also, if you want to specify destination directory (say with > different name) you will need to end directory with forward slash > both on local and remote, like: > > scp -pr mlapier(a)192.168.15.105:"/home/mlapier/.thunderbird/" \ > /home/mlapier/.thunderbird/ > > (this should be one line which didn't fit for me in one line hence > backslash...) > > Valeri > >> >> It copies all directories and files in 192.168.15.105: >> /home/mlapier/ to 192.168.15.101: /home/mlapier. I don't want >> all that, I just want the .thunderbird folder and all it's >> contents. >> >> The user and group account numbers match on the two machines for >> this user so that's not the issue. >> >> When I RTFM this is what I thought it said to do. I'm I >> misreading the FM or is something weird going on here? >> As I believe was suggested by someone when you asked about this a few days ago, the space that you have after the colon: scp -pr mlapier(a)192.168.15.105: /home/m... is the source of your problem. I just tested and confirmed it. Some other notes: with the "mlapier(a)192.168.15.105" you'll, by default, be "in" the home directory of mlapier on the remote machine. So you don't need the "...:/home/mlapier/" pathing. Also, if you are in your (mlapier) home directory on the new machine when you are doing this you again won't need the pathing. So, I think you should be able to do just: scp -pr mlapier@192.168.15.105:.thunderbird . or at most: scp -pr mlapier@192.168.15.105:.thunderbird /home/mlapier/. If, per chance, you wanted to change the directory name on the transfer you'd need to specify it, rather than just the ".", otherwise the "." will simply put directory on the target machine with the same name as the original. - Richard

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How to search the mail archive
by Mark LaPierre 26 Feb '15

26 Feb '15

Hey All, I've seen references to searching the mail archive. How exactly does one perform such a search? Let's say I want to search the mail archive for references to the scp command. How do I do that? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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Kickstart with multiple eth devices
by Ashley M. Kirchner 26 Feb '15

26 Feb '15

I have a Dell server that has two built-in ethernet devices. When I kickstart the machine, they are correctly identified as eth0 and eth1 (correctly meaning they correspond to the physical device ports 1 and 2). I need a third one and want that to come up as eth2. After adding the hardware, kickstart now fails because for some reason it goes through a rename process where it makes the newly added card eth1 (or eth0, I forgot). Is there a way to stop this rename process so kickstart correctly uses the physical hardware the way they are, meaning physical port 1 = eth0, port 2 = eth1, and the additional ethernet card then becomes eth2? Should I be using the device's MAC address when I set the 'network' option in the kickstart file? So instead of 'network --device=eth0' I make it 'network -device=aa;bb:cc:dd:eee:ff' ?

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Re: [CentOS] Kickstart with multiple eth devices
by Ashley M. Kirchner 26 Feb '15

26 Feb '15

And after picking this back up this morning .... still no dice. I have now blacklisted the one module that would enumerate the add-in ethernet port so that is no longer an issue during the kickstart process, however the following is now happening: - kickstart completes successfully using the machine's physical port 2 (or eth1) which is on a subnet with DHCP - when the system reboots, it brings up port 1 (eth0) with the correct static IP information, HOWEVER ... - port 2 (eth1) is NOT configured properly. When I look at it's ifcfg-eth1 file, its bootproto is set to none when it should be set to dhcp. - the add-in card has not been enumerated, in fact the system doesn't even know it's there (dmesg has no mention of it and no module loaded) So for port 2 (eth1), the kickstart file has it configured as a dhcp interface, so why when the system reboots it comes up with bootproto=none? On the other hand, port 1 (eth0) does come up with the static information as it should - that info is also set in the kickstart file. Baffled ... On Wed, Feb 25, 2015 at 4:46 PM, Ashley M. Kirchner <ashley(a)pcraft.com> wrote: > Yeah, and we're back to someone needing to "do something" on the system > after it reboots. :) > > On Wed, Feb 25, 2015 at 4:37 PM, Jason Warr <jason(a)warr.net> wrote: > >> On Wed, 25 Feb 2015 17:30:30 -0600, Ashley M. Kirchner < >> ashley(a)pcraft.com> wrote: >> >> >> On Feb 25, 2015 4:19 PM, "Jason Warr" <jason(a)warr.net> wrote: >> >> > It will if you try to configure the now non-existent interface. >> >> That's what I figured, so I can remove it from the kickstart file, no >> problem. The question then becomes, if kickstart doesn't configure it, what >> happens when the system reboots after install? It won't know what to do >> with that interface, correct? >> >> Is this a case where I will need to put an ifcfg-eth2 file in place >> during post-install? >> >> Upon reboot the system *should* generate a base one for you as it will >> see it as a new interface. Not a big deal if it does not though, just >> create one yourself. You will want to add it to the udev rules file >> though. You can re-run the script I sent to do that if you want. At that >> point it should be eth2. Or you can edit the existing one by copying a >> line and changing the MAC and eth* to whatever you need. >> > >

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move a disk to another machine
by Chuck Campbell 26 Feb '15

26 Feb '15

I have a centos 6.6 laptop which is having trouble (intermittent boot failures, or more rightly so, multiple failures, intermittent booting). The laptop is running selinux. I pulled the second internal disk out to get my data off of it. I plugged it into my centos 5.x machine and mounted it. I was able to do a dir listing, but whrn I tried to cd into any of the directories, I get a bunch of AVC denials, and I can't see any files. The contos 5.x machine is selinux enforcing, and so is the centos 6.x box. The files are all owned by me, and have the same uid/gid on both boxes. What is the right way to do this? Meanwhile, I put it back into the laptop, and kept attempting to boot the machine, until I got lucky and it came up. I was able to rsync the data off the drive, so this isn't a crisis, just a learning moment. thanks, -chuck --

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CentOS 7 will not run pre-installation script
by Jerome Yanga 26 Feb '15

26 Feb '15

Has anyone experienced any difficulties of getting the pre-installation script for CentOS 7 to run? Regards, j

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Discuss February 2015