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Re: [CentOS] Centos 7 and MAC address munging
by m.roth＠5-cent.us 18 May '17

18 May '17

Subject: Re: [CentOS] Centos 7 and MAC address munging Date: Thu, 18 May 2017 06:22:21 +0100 From: James Hogarth <james.hogarth(a)gmail.com> > > On 17 May 2017 8:53 pm, <m.roth(a)5-cent.us> wrote: > >> Odd situation: I've mentioned before that I have several users for whom I >< have to spoof the MAC address, due to a software license. Now, I've got >> net.ifnames=0 biosdevname=0 on the grub2 command line, and I've got the >> spoofed MAC address in /etc/sysconfig/network-sctipts/ifcfg-eth0. > >> But he had a serious problem - X froze, and he thought to reboot, rather >> than call me. It came up with the actual MAC. I tried a number of things, >> including reboots, but the only thing that worked was systemctl stop >> NetworkManager, ifdown eth0, then ifup eth0, then start NetworkMangler, >> and all was good. > >> Yeah, I know, afterwards, I remembered I should have use nmcli.... > >> But the real question is *why* did it fail on the reboot. I find no clues >> in dmesg, or messages, or boot.log. > >> Clues for the poor? > > Is this box fully updated? I ask as the NM since 7.3 has different > behaviour from release due to rebasing. Mostly. Running 3.10.0-514.10.2.el7.x86_64, and yum tells me nothing marked for update (that's ignoring that we have exclude=kernel* *xorg* *nvid* kmod* in yum.conf) > > What does `nmcli con sh eth0 | grep clone` tell you? > 802-3-ethernet.cloned-mac-address: and the spoofed MAC address. > It's that property you need to set. Sorry, I don't understand the above sentence. What property - 802-3-ethernet.cloned-mac-address? And this is on top of ifcfg-eth0, and all the rest? mark

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Best practices for copying lots of files machine-to-machine
by ken 18 May '17

18 May '17

An entire filesystem (~180g) needs to be copied from one local linux machine to another. Since both systems are on the same local subnet, there's no need for encryption. I've done this sort of thing before a few times in the past in different ways, but wanted to get input from others on what's worked best for them. One consideration is that the source filesystem contains quite a few hardlinks and symlinks and of course I want to preserve these, and preserve all timestamps and ownerships and permissions as well. Maintaining the integrity of this metadata and the integrity of the files themselves if of course the top priority. Speed is also a consideration, but having done this before, I find it even more important to have a running progress report or log so I can see how the session is proceeding and approximately how much longer it will be until finished... and too to see if something's hung up. One other consideration: There isn't much disk space left on the source machine, so creating a tar file, even compressed, isn't an option. What relevant methods have you been impressed by?

7 10

plymouth themes problem
by Fred Smith 18 May '17

18 May '17

Hi all! I was playing with plymouth themes on a c7 box. I found a page on redhat, in their rhel7 documentation that describes how to change to a different plymouth screen: plymouth-set-default-theme --list to find out what themes are installed. then I installed the remaining bunch the yum had available. so then installing one by doing plymouth-set-default-theme <theme name> dracut -f as documented on the aforementioned page, followed by a reboot produces NO plymouth splash screen. not even if I revert to the system default theme (the "charge" theme). Anybody know what I'm overlooking here? thanks! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- The Lord detests the way of the wicked but he loves those who pursue righteousness. ----------------------------- Proverbs 15:9 (niv) -----------------------------

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Centos 7 and MAC address munging
by m.roth＠5-cent.us 18 May '17

18 May '17

Odd situation: I've mentioned before that I have several users for whom I have to spoof the MAC address, due to a software license. Now, I've got net.ifnames=0 biosdevname=0 on the grub2 command line, and I've got the spoofed MAC address in /etc/sysconfig/network-sctipts/ifcfg-eth0. But he had a serious problem - X froze, and he thought to reboot, rather than call me. It came up with the actual MAC. I tried a number of things, including reboots, but the only thing that worked was systemctl stop NetworkManager, ifdown eth0, then ifup eth0, then start NetworkMangler, and all was good. Yeah, I know, afterwards, I remembered I should have use nmcli.... But the real question is *why* did it fail on the reboot. I find no clues in dmesg, or messages, or boot.log. Clues for the poor? mark

2 1

CentOS 7 on HP DL160 G6
by H 18 May '17

18 May '17

I am running the latest updated version of CentOS on a HP DL160 G6 server as a workstation with the Mate desktop, not Gnome. The only expansion card I have installed is a MSI Geforce GT710 graphics card driving two monitors. Unfortunately the computer locks up at random intervals: neither the mouse nor the keyboard work and I lose the SSH connection to the computer I have used to see if the entire computer locks up or only the desktop. If I leave the computer in this state it eventually reboots. Any suggestions on where to begin researching this? Thank you.

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What's Next
by Eugene Poole 18 May '17

18 May '17

OK, AMD has announced it's new line of server and desktop processors. What level of CentOS has been tested on them? OK then, when will CentOS be tested on them? Or do we wait for Red Hat? -- Eugene Poole Woodstock, Georgia

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From Networkmanager to self managed configuration files
by Andreas Benzler 17 May '17

17 May '17

I don't know who is intereseted in, http://www.centos.cms4all.org/index.php/2017/03/07/centos-7-the-journey-for… Can be a bug, because the isn't nessesery. Sincerely AndyBe

9 33

CentOS 7 and sound
by Jerry Geis 16 May '17

16 May '17

Hello, I have a need to get CentOS 7 sound working on a console only machine. X is not running. Currently when I try aplay: aplay /usr/share/sounds/alsa/Front_Center.wav ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused aplay: main:786: audio open error: Connection refused aplay -l **** List of PLAYBACK Hardware Devices **** card 1: PCH [HDA Intel PCH], device 0: ALC283 Analog [ALC283 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 So sound is present - I presume pulseaudio is not running as X is not running, Can I run audio without X ? Next steps ? running in an ALSA mode is fine with me - but how? Thanks, Jerry

2 2

CentOS-announce Digest, Vol 147, Issue 3
by centos-announce-request＠centos.org 16 May '17

16 May '17

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2017:1208 Important CentOS 6 jasper Security Update (Johnny Hughes) 2. CESA-2017:1230 Important CentOS 6 ghostscript Security Update (Johnny Hughes) 3. CESA-2017:1230 Important CentOS 7 ghostscript Security Update (Johnny Hughes) 4. CESA-2017:1208 Important CentOS 7 jasper Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 15 May 2017 15:59:23 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2017:1208 Important CentOS 6 jasper Security Update Message-ID: <20170515155923.GA7088(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2017:1208 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-1208.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 065e0d1bf12c76b8c069e195cc766f413513de631fc2068102c6274bf32a5331 jasper-1.900.1-21.el6_9.i686.rpm fb061499b5f77715cc8edcb8be8bb9e7be45a5471eafcec4f2b108a8a66a6caf jasper-devel-1.900.1-21.el6_9.i686.rpm 2e159a9085ea69dc5494e61caa75a2baad3b313d4c9aaa28d210019d39e1dcc1 jasper-libs-1.900.1-21.el6_9.i686.rpm 6bff2a512a3a02648e7a7e576430def2da83ce3b9e04d9d4645d272028bf74b5 jasper-utils-1.900.1-21.el6_9.i686.rpm x86_64: f2796377490accb35ffc0e76528f712659d30add0842887ce504b8d6645fd220 jasper-1.900.1-21.el6_9.x86_64.rpm fb061499b5f77715cc8edcb8be8bb9e7be45a5471eafcec4f2b108a8a66a6caf jasper-devel-1.900.1-21.el6_9.i686.rpm c5df9adf35d20e7a849fbf7e377cb0cb8902f01f2bcb94c94e31001c9ca058ab jasper-devel-1.900.1-21.el6_9.x86_64.rpm 2e159a9085ea69dc5494e61caa75a2baad3b313d4c9aaa28d210019d39e1dcc1 jasper-libs-1.900.1-21.el6_9.i686.rpm 2d59e1277757dc31c39400a7276f08d8afd03504ce8440facce1f84bb4be714f jasper-libs-1.900.1-21.el6_9.x86_64.rpm b61bc76d97dad867740d8774637fc055cc28289fa4f02b3e6dcaf5d8b3ffa76c jasper-utils-1.900.1-21.el6_9.x86_64.rpm Source: ef8e5d52a2bc6ad50c48ef1ebe4490a67bb92df075afacc102b16d8f076fb162 jasper-1.900.1-21.el6_9.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Mon, 15 May 2017 15:59:50 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2017:1230 Important CentOS 6 ghostscript Security Update Message-ID: <20170515155950.GA7362(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2017:1230 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-1230.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 5a76fb12c6c3c14c0961c03320e8d7770ce72c09a21e614a7aed3864d87943e5 ghostscript-8.70-23.el6_9.2.i686.rpm d8ce9d3bc452838b99d3613f71dafdcaefe8ba989f48f7933bf3aa81b7531f5b ghostscript-devel-8.70-23.el6_9.2.i686.rpm dcc02d7bd26fa4b2c1eb3a9c9066780f327325917f6f6a7d1c95f7bca715248e ghostscript-doc-8.70-23.el6_9.2.i686.rpm 1ae49f1a618b81c2fc128ad0eaf399e3c0f11742a5517106ae84260001d48582 ghostscript-gtk-8.70-23.el6_9.2.i686.rpm x86_64: 5a76fb12c6c3c14c0961c03320e8d7770ce72c09a21e614a7aed3864d87943e5 ghostscript-8.70-23.el6_9.2.i686.rpm a5f9fe8c575085bba8c5b5e437e7b82cac128ec023617ca75766fef175b271db ghostscript-8.70-23.el6_9.2.x86_64.rpm d8ce9d3bc452838b99d3613f71dafdcaefe8ba989f48f7933bf3aa81b7531f5b ghostscript-devel-8.70-23.el6_9.2.i686.rpm 9e9079054a2e805d877c3d6f8b039649170ed6721cfd9178fa158ce5e7aaaa7b ghostscript-devel-8.70-23.el6_9.2.x86_64.rpm 9e2d67a2fd1be67f0d0637baea8f71fa077a69803e95d7a5240473edbef4762c ghostscript-doc-8.70-23.el6_9.2.x86_64.rpm 7a9b3f8e415a5d88701631590a58d0dd40f105c13b215739115e6b8b8ed99b4e ghostscript-gtk-8.70-23.el6_9.2.x86_64.rpm Source: 1d42f1dfb0b4fac0fb35bd46b712b429691c0f56d9637d3cc6bb23092681053e ghostscript-8.70-23.el6_9.2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 3 Date: Mon, 15 May 2017 16:45:50 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2017:1230 Important CentOS 7 ghostscript Security Update Message-ID: <20170515164550.GA11623(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2017:1230 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-1230.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 13b528fab28b799cb7821c627dba7610b800724b72013a457d0b8e307a51dd97 ghostscript-9.07-20.el7_3.5.i686.rpm 98164b6667981379add6d5aaca6e636afc09705f28876bbbd55b39662b1355ae ghostscript-9.07-20.el7_3.5.x86_64.rpm 08099c3554cc5cc69e6b39fb46653b521c78d5f7dd898299bb8509b46c60da5c ghostscript-cups-9.07-20.el7_3.5.x86_64.rpm d8955de29347efbb508e0347f733c5fcc9cea0fcd6c67b38f9cee4753a5af259 ghostscript-devel-9.07-20.el7_3.5.i686.rpm dfc06dd01dfd83596c32838d1299bd7627ff4448638d4965a5b18d374c426ba2 ghostscript-devel-9.07-20.el7_3.5.x86_64.rpm 17930cd40d86834840e4f647512d9d90c7aba63b752910d7cc72594e329c9441 ghostscript-doc-9.07-20.el7_3.5.noarch.rpm 71928ee68a7cfbad0f986b1af5e1d534b37625a2f3b7190841b51a6b9150dfe5 ghostscript-gtk-9.07-20.el7_3.5.x86_64.rpm Source: ba98ea2b439b24ff44f59cb96fef42bdc616f6834aa9b97e7baa6d22194b7960 ghostscript-9.07-20.el7_3.5.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 4 Date: Mon, 15 May 2017 16:46:03 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2017:1208 Important CentOS 7 jasper Security Update Message-ID: <20170515164603.GA11713(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2017:1208 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-1208.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: bf4bec0731557d9200609d59f46d1b66da039a1887828d2d477be9b93675a137 jasper-1.900.1-30.el7_3.x86_64.rpm 094699ed29af7ed7ba8dffbdbcd8cd345339acf9b4da7a519d1bfcea7bef23b0 jasper-devel-1.900.1-30.el7_3.i686.rpm d7c8e089c540c9d1ed779130e51a7637fd242cdea676c545216a2cb49fdd77a9 jasper-devel-1.900.1-30.el7_3.x86_64.rpm 33528f9a2f5eaffc09abaed6f5b81f336815820969406a24dfb7526d587ed54b jasper-libs-1.900.1-30.el7_3.i686.rpm 63ee65983ed5bd9f8d2516f4066d3642cdff69f63b5251a52470094e7a816150 jasper-libs-1.900.1-30.el7_3.x86_64.rpm a7863af6605c1c32063a611a530c0b4da2312b98fb2da4138e4071fa8f6762c2 jasper-utils-1.900.1-30.el7_3.x86_64.rpm Source: 37135c918505fca6233f9ab55193602bb9ed97dcde43a50ed6f2dae3a45038fc jasper-1.900.1-30.el7_3.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Subject: Digest Footer _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce ------------------------------ End of CentOS-announce Digest, Vol 147, Issue 3 ***********************************************

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kickstart: dracut-initqueue fails due to unresolvable hostname even though network config looks perfectly ok
by Frank Thommen 16 May '17

16 May '17

Hi, kickstarting fails due to problems with host resolution, even though the network seems to be properly configured through DHCP. eno1 and eno2 are both attached to the network, but only eno1 gets an IP via DHCP. Still `curl` cannot resolve the mirror host and the kickstart host during dracut-initqueue: rdsosreport.txt ------------------------------------------------ [...] [ 14.780428] localhost kernel: IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready [ 19.977052] localhost kernel: tg3 0000:0b:00.0 eno1: Link is up at 1000 Mbps, full duplex [ 19.977118] localhost kernel: tg3 0000:0b:00.0 eno1: Flow control is off for TX and off for RX [ 19.978880] localhost kernel: tg3 0000:0b:00.0 eno1: EEE is disabled [ 19.980693] localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready [ 19.829468] localhost dracut-initqueue[992]: dhcp: PREINIT eno1 up [ 19.853734] localhost dhclient[1393]: DHCPDISCOVER on eno1 to 255.255.255.255 port 67 interval 6 (xid=0x4df19201) [ 26.030151] localhost dhclient[1393]: DHCPDISCOVER on eno1 to 255.255.255.255 port 67 interval 13 (xid=0x4df19201) [ 26.033472] localhost dhclient[1393]: DHCPREQUEST on eno1 to 255.255.255.255 port 67 (xid=0x4df19201) [ 26.033668] localhost dhclient[1393]: DHCPOFFER from 10.128.196.98 [ 26.038851] localhost dhclient[1393]: DHCPACK from 10.128.196.98 (xid=0x4df19201) [ 26.067534] localhost dracut-initqueue[992]: dhcp: BOND setting eno1 [ 28.082735] localhost dhclient[1393]: bound to 10.128.196.20 -- renewal in 21301 seconds. [ 28.456131] localhost kernel: tg3 0000:0b:00.1: irq 153 for MSI/MSI-X [ 28.456149] localhost kernel: tg3 0000:0b:00.1: irq 154 for MSI/MSI-X [ 28.456165] localhost kernel: tg3 0000:0b:00.1: irq 155 for MSI/MSI-X [ 28.456180] localhost kernel: tg3 0000:0b:00.1: irq 156 for MSI/MSI-X [ 28.456196] localhost kernel: tg3 0000:0b:00.1: irq 157 for MSI/MSI-X [ 28.570450] localhost kernel: IPv6: ADDRCONF(NETDEV_UP): eno2: link is not ready [ 34.024621] localhost kernel: tg3 0000:0b:00.1 eno2: Link is up at 1000 Mbps, full duplex [ 34.026347] localhost kernel: tg3 0000:0b:00.1 eno2: Flow control is off for TX and off for RX [ 34.028069] localhost kernel: tg3 0000:0b:00.1 eno2: EEE is disabled [ 34.029776] localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eno2: link becomes ready [ 33.803606] localhost dracut-initqueue[992]: dhcp: PREINIT eno2 up [ 33.827664] localhost dhclient[1570]: DHCPDISCOVER on eno2 to 255.255.255.255 port 67 interval 7 (xid=0x1e8bdc4b) [ 41.000199] localhost dhclient[1570]: DHCPDISCOVER on eno2 to 255.255.255.255 port 67 interval 15 (xid=0x1e8bdc4b) [ 55.588353] localhost dhclient[1570]: DHCPDISCOVER on eno2 to 255.255.255.255 port 67 interval 18 (xid=0x1e8bdc4b) [ 74.172423] localhost dhclient[1570]: DHCPDISCOVER on eno2 to 255.255.255.255 port 67 interval 12 (xid=0x1e8bdc4b) [ 86.446514] localhost dhclient[1570]: DHCPDISCOVER on eno2 to 255.255.255.255 port 67 interval 9 (xid=0x1e8bdc4b) [ 95.253443] localhost dhclient[1570]: No DHCPOFFERS received. [ 95.253648] localhost dhclient[1570]: No working leases in persistent database - sleeping. [ 95.282175] localhost dracut-initqueue[992]: dhcp: FAIL [ 95.353255] localhost dracut-initqueue[992]: RTNETLINK answers: File exists [ 102.502688] localhost dracut-initqueue[992]: Warning: can't find installer mainimage path in .treeinfo [ 102.517568] localhost dracut-initqueue[992]: % Total % Received % Xferd Average Speed Time Time Time Current [ 102.525942] localhost dracut-initqueue[992]: Dload Upload Total Spent Left Speed [ 102.534277] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Transient problem: timeout Will retry in 1 seconds. 3 retries left. [ 103.527190] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Transient problem: timeout Will retry in 2 seconds. 2 retries left. [ 105.533677] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Transient problem: timeout Will retry in 4 seconds. 1 retries left. [ 109.542329] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: our.centos.mirror; Unknown error [ 109.551613] localhost dracut-initqueue[992]: Warning: Downloading 'http://our.centos.mirror/7.2.1511/os/x86_64/LiveOS/squashfs.img' failed! [ 109.615143] localhost dracut-initqueue[992]: % Total % Received % Xferd Average Speed Time Time Time Current [ 109.624698] localhost dracut-initqueue[992]: Dload Upload Total Spent Left Speed [ 109.625018] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Transient problem: timeout Will retry in 1 seconds. 3 retries left. [ 110.624800] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Transient problem: timeout Will retry in 2 seconds. 2 retries left. [ 112.631351] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0Warning: Transient problem: timeout Will retry in 4 seconds. 1 retries left. [ 116.639935] localhost dracut-initqueue[992]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: our.kickstart.server; Unknown error [ 116.650727] localhost dracut-initqueue[992]: Warning: failed to fetch kickstart from http://our.kickstart.server/ks.cgi [ 242.126427] our.client dracut-initqueue[992]: Warning: dracut-initqueue timeout - starting timeout scripts [... 120 times this warning ...] [ 304.648460] our.client systemd[1]: Received SIGRTMIN+20 from PID 991 (plymouthd). [ 304.650862] our.client dracut-initqueue[992]: Warning: /dev/root does not exist [ 304.659840] our.client systemd[1]: Starting Dracut Emergency Shell... [ 304.684459] our.client systemd[1]: Received SIGRTMIN+21 from PID 991 (plymouthd). [... exiting to emergency shell ...] dropped to the emergency shell, the network config looks absolutely ok: $ ip route default via 10.128.196.97 dev eno1 10.128.196.0/24 dev eno1 proto kernel scope link src 10.128.196.20 169.254.95.0/24 dev enp0s20u1u5 proto kernel scope link src 169.254.95.120 $ `ip a` shows the correct IP address for eno1 and /etc/resolv.conf has all required nameservers. From the emergency shell both hostnames (our.centos.mirror and our.kickstart.server) are perfectly resolvable and accessible. The used PXE config is: LABEL CentOS-7 kernel centos-7.2/vmlinuz append initrd=centos-7.2/initrd.img ip=dhcp inst.repo=http://our.centos.mirror/7.2.1511/os/x86_64 inst.ks.sendmac inst.ks=http://our.kickstart.server/ks.cgi Any idea, why curl cannot resolve the two hostnames or how I can debug this further? Cheers frank

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