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SAS drive not showing [SOLVED]
by m.roth＠5-cent.us 28 Jul '16

28 Jul '16

*Finally* found the answer. The case was, if you'll recall, that I had replaced a pair of older, smaller drives with a couple of 8TB SATA drives, and made it RAID1 using the PERC firmware. I was then going to wipe the drive. First, the old ones turned out to be SAS, no SATA. I had tried shoving it into a similar Dell, which I regularly use for shoving SATA drives in, and copying over the network, then putting them (larger drives) in place of the ones they were replacing on other servers. This just wouldn't show as /dev/sdx, the way the SATA did. The solution: a script I found on the 'Net lsi.sh, which depends on you having MegaRaid on the box, shows the four drives, but that one was listed as "unconfigured good". What I needed to do was use MegaCLI64 to first display foreign configurations... and regardless of the other three SATA drives, did show only one, and that was from this SAS drive. I then did a clear foreign configuration. After that, I could use PDMakeJBOD, and all is wonderful. mark

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CentOS-announce Digest, Vol 137, Issue 9
by centos-announce-request＠centos.org 28 Jul '16

28 Jul '16

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LXC containers - systemd takes a long time to start
by Anthony K 28 Jul '16

28 Jul '16

I've got a CentOS7 server (fully patched) and in it I'm running several LXC containers. I've noticed that whenever I try to launch a service via `systemctl start <service_name>` soon after LXC boot, it will take ~5 minutes before the prompt returns. After that initial delay, starting/stopping/restarting services happens immediately. It might be that this happens because the server is running a large number of (>20) containers. On next reboot, I'll see if it has the same problem when I have just one container. In the meantime, anyone else seen similar behavior?

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Thunderbird .desktop file is renamed in version 45.2
by Johnny Hughes 28 Jul '16

28 Jul '16

I was starting my Thunderbird via a script and I thought I would post that the name of the desktop file has changed to help anyone else who was running the desktop file from a script. Old path was: /usr/share/applications/mozilla-thunderbird.desktop New Path is: /usr/share/applications/thunderbird.desktop Thanks, Johnny Hughes

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Mounting NFS subdirectories individually or just the parent?
by Frank Thommen 27 Jul '16

27 Jul '16

Hello, does it in any respect (throughput/performance, cpu load, I/O load, resilience, ...) matter, if one mounts subdirectories of an NFS (v3) export into separate directories or if one just mounts the parent directory? I.e. like this: server:/export/base/a -> /mnt/a server:/export/base/b -> /mnt/b server:/export/base/c -> /mnt/c server:/export/base/d -> /mnt/d server:/export/base/e -> /mnt/e or simply like this: server:/export/base -> /mnt I would guess, that it doesn matter at all, but at $work the standard setup on all cluster nodes is, to mount >20 subdirectories from the NFS server individually and the justification is, that is more performant and reliable. Can this be confirmed (or denied)? I couldn't find this method of "NFS performance tuning" mentioned anywhere and from a management perspective the sheer amount of mounted filesystems makes the list confusing and harder to troubleshoot. Any thoughts? Regards frank

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CentOS 6 and an SAS drive, hardware
by m.roth＠5-cent.us 27 Jul '16

27 Jul '16

This is... odd. Got a 6.8 box, a Dell R320 lspci tells me 01:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 2008 [Falcon] (rev 03) so it *should* accept an SAS drive. I've got a Cheetah that's a few years old, and having pulled it out of another server (in the datecenter), I put it in this box to zero it out for reuse... and the box refuses to see the drive. *Nothing* in dmesg, *nothing* in /var/log/messages, and I tried echo "0" etc to get the SCSI buses to rescan. Anyone have any ideas? mark

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How to convert /etc/machine-id into a default-duid for IPv6 static DHCP?
by Patrick Laimbock 27 Jul '16

27 Jul '16

Hi, The use-case is deploying C7 VMs with a pre-set machine-id and default-duid based on the machine-id to facilitate static DHCP with IPv6. The default-duid is found in dhclient6-<value>-eth0.lease and IPv6 DHCP uses default-duid like IPv4 DHCP uses MAC addresses for static DHCP. How does one convert /etc/machine-id to a default-duid (in bash)? 1) /etc/machine-id -> DUID: <read RFC6355 and try to grasp the NetworkManager code at [0] & [1]> Use sha256 hash of machine-id, use first 128 bits, add colons and prepend 00:04: $ MACHINE_ID_SHA256=`cat /etc/machine_id | sha256sum | cut -c1-32` $ TMPID=$(sed -e 's/.\{2\}/&:/g;s/.$//' <<<$MACHINE_ID_SHA256) $ DUID=00:04:`echo $TMPID` Correct? 2) convert $DUID to a default-duid. Example value of default-duid can be found in /var/lib/NetworkManager/dhclient6-<string>-eth0.lease. Will stick the pre-set default-duid in /etc/dhclient6.leases so it gets picked up by NM once the VM is deployed and started. So going from e.g. /etc/machine-id 52d8c0f2a04a462a9c9ac1a906446d85 to duid 00:04:a6:89:54:e8:bf:e2:13:71:82:3d:ea:33:4d:a5:2f:75 to default-duid ??? example: default-duid "\000\004%\011\324\251\274\334\001c\304\366\275\314\220\357\255("; So how does one create the default-duid from the duid? The default-duid seems escaped octal with some chars here and there. The NetworkManager code at [2] that does the duid->default-duid conversion is above my pay grade. Anyone know how do this conversion preferably in bash? TIA, Patrick [0] https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/nm-core… [1] https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/dhcp-ma… [2] https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/dhcp-ma…

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CentOS-announce Digest, Vol 137, Issue 8
by centos-announce-request＠centos.org 27 Jul '16

27 Jul '16

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-2016:1486 Moderate CentOS 7 samba Security Update (Johnny Hughes) 2. CESA-2016:1487 Moderate CentOS 6 samba4 Security Update (Johnny Hughes) 3. CESA-2016:1486 Moderate CentOS 7 samba Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 26 Jul 2016 11:26:50 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2016:1486 Moderate CentOS 7 samba Security Update Message-ID: <20160726112650.GA30027(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2016:1486 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1486.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) Source: 2ea1482b434b0a735289ccb72fcff96b31a10bdeca0d9529bb9bfefd8e12c651 samba-4.2.10-7.el7_2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Tue, 26 Jul 2016 11:29:16 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2016:1487 Moderate CentOS 6 samba4 Security Update Message-ID: <20160726112916.GA30523(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2016:1487 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1487.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 15ca4750033d29a32719504ad067bb3805160d450ddf7b02700e65c947cabbb5 samba4-4.2.10-7.el6_8.i686.rpm 9a2b1aaa5d71e4c97b5c0a39eab87f3b4da78fe092a1a628a3968095853dfc2b samba4-client-4.2.10-7.el6_8.i686.rpm 123b5d516da53b7f51f1ae20ee5405d8945ae5fe517bce96fc15d8e16dd10d04 samba4-common-4.2.10-7.el6_8.i686.rpm c614eabb0e29080218b4b2e9b44327fdd49d8db55c56902d6c2674721468fca3 samba4-dc-4.2.10-7.el6_8.i686.rpm ad13e18c084b6e732cd3d1f31217f9a22529e7d18885272c5c50ba359d918a58 samba4-dc-libs-4.2.10-7.el6_8.i686.rpm 684ef297850f61cc20784f73cb6de83cc30d9e5b7ccf43e404ef774ffc25d2a9 samba4-devel-4.2.10-7.el6_8.i686.rpm 43bb61576a448b2f60db213590286ea77028fad675c334f7b3493e1fa1dd6eec samba4-libs-4.2.10-7.el6_8.i686.rpm ed4eef4ce872eb656966c4b9f9b699831e49373fc92256fea881a6b053abca75 samba4-pidl-4.2.10-7.el6_8.i686.rpm a5d8a4f6791cc610a943d0beac34e9af3e66200a53d4b4d54c93ff8ffd5b8af3 samba4-python-4.2.10-7.el6_8.i686.rpm 8315a57e03b24438c0ee707fe11886679822d1b892e430a1670f430ffc018248 samba4-test-4.2.10-7.el6_8.i686.rpm c0a862d6481de5fa9168ea63a3b3339e6173bd04dc32edef60d20f3f9e4aab54 samba4-winbind-4.2.10-7.el6_8.i686.rpm 23dada0999a40a86bb66737af5475cf520f636c750031e3101a8e96bb6b3a6f7 samba4-winbind-clients-4.2.10-7.el6_8.i686.rpm a59f9ab48aca42c498978f60efc81142f79aac9b1f65ff03a257e178f4a58ba9 samba4-winbind-krb5-locator-4.2.10-7.el6_8.i686.rpm x86_64: b6dc22d385573d976b7497562654427dbf7c68e9a353d00f85281f10cf94f284 samba4-4.2.10-7.el6_8.x86_64.rpm 873205cd2c05747991f348491aed2520c1fbb10290ec7dfd83efa40c57abbff4 samba4-client-4.2.10-7.el6_8.x86_64.rpm d3ecbf5c375999735d6a72681b1e02dd866b2d097c8f958ef05c2f265df85e74 samba4-common-4.2.10-7.el6_8.x86_64.rpm 1ee374da3e6d9997e3213f77632c67760002d2349fe967a98021014d84f7bd65 samba4-dc-4.2.10-7.el6_8.x86_64.rpm 47d7e7079c2540d4029022ca6a7f90886172e005c079ef8dcc3636106ea9d695 samba4-dc-libs-4.2.10-7.el6_8.x86_64.rpm dae07ad1fbfbf17f6586d2b21f573227a0c295fc60bce4ed7064c5c76d31b05f samba4-devel-4.2.10-7.el6_8.x86_64.rpm 99191c51f9f48b05a5689e2ef32506a10206c15cccf6f76bc5cdf969b314e839 samba4-libs-4.2.10-7.el6_8.x86_64.rpm 7471a4a94c3527e359ffcb781aead43c42453dfc5ce59670ba8dffd1c1b052ad samba4-pidl-4.2.10-7.el6_8.x86_64.rpm 6022b996f92b9f89ca75ebf66a132e5f08e304b340169f51c43dc0b4d9280d52 samba4-python-4.2.10-7.el6_8.x86_64.rpm 1da80174aa99318d2dcea3040ff32e4f259b5c10ce866fde1b09e0ad3018e11d samba4-test-4.2.10-7.el6_8.x86_64.rpm 983f26cc1cfdc61ab632caf169dcf813f037fb728770af91bae6f6aca334dbda samba4-winbind-4.2.10-7.el6_8.x86_64.rpm f7e48ee612915fb163557534eae43a77d5a3cc8ab889f98fb0f1b978ab1f3aaf samba4-winbind-clients-4.2.10-7.el6_8.x86_64.rpm 6d7cc5c92847f1299e6235c1657c4832c91b921e1ae65ea4d797f223d0b38719 samba4-winbind-krb5-locator-4.2.10-7.el6_8.x86_64.rpm Source: 92590118ebb6c8d0ca75215616607dd793aedb2eb52b0c3caf1e9ee5cca2f489 samba4-4.2.10-7.el6_8.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 3 Date: Tue, 26 Jul 2016 22:10:46 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2016:1486 Moderate CentOS 7 samba Security Update Message-ID: <20160726221046.GA53606(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2016:1486 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1486.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: af316ded6583e6970f213f1faa30a355594d2933f688a907ce565d564e40cdca ctdb-4.2.10-7.el7_2.x86_64.rpm 936138ac2d66d5989658814b31b59486ab276537345393408de3efdb78431cce ctdb-devel-4.2.10-7.el7_2.i686.rpm 2437457d7d9812367bbd51f8c6517a9a9d15c529d1d5983ece129f8f459bab8a ctdb-devel-4.2.10-7.el7_2.x86_64.rpm e714cab79fe0103cd66ddbd46ae74c68e84cdbd7ffe0a34d1efa5b38b9ff1ffc ctdb-tests-4.2.10-7.el7_2.x86_64.rpm eb97c7a86e94546b1180f9ab367121a16a486bd366ae12c6e468d561b2d12f48 libsmbclient-4.2.10-7.el7_2.i686.rpm 67f1de3814404a15e92b9787b058ec92a4db857ef761d8b57fc0352f94ab180b libsmbclient-4.2.10-7.el7_2.x86_64.rpm 323283146f2e2d90737dffc367f747e414fd368d6ecf692369501ca2fd97359e libsmbclient-devel-4.2.10-7.el7_2.i686.rpm 0844d470c626f3054dc2d75a9ec6f49732ea6dfe585391a40d14553310626418 libsmbclient-devel-4.2.10-7.el7_2.x86_64.rpm e48e898aca04edd11ccc3a162d6c62e29a0b0f1d039be2f38b680b640671dff4 libwbclient-4.2.10-7.el7_2.i686.rpm 2b8df119f520e430163bf32247d177b2d1d51b8179c6dcbdc8b7fc7d47bbc28c libwbclient-4.2.10-7.el7_2.x86_64.rpm 3ccc0bf2449d3b9fdd7ffdb5d7f1cef0190d5f30a02e2a7622e0df31afdf7fb5 libwbclient-devel-4.2.10-7.el7_2.i686.rpm a4a4ce957fe9d636ee6caa9fbab1b1c7f295768d03acfcdbadc1dee1bd4608c3 libwbclient-devel-4.2.10-7.el7_2.x86_64.rpm f5c64b664496854190fc63f88afdea510e879e4e4f46ebc0d8b4480f34315157 samba-4.2.10-7.el7_2.x86_64.rpm 3bdfe254ea4e1461fb55476cd9cf69a08a38b76dc0386ec5044344c5fc815782 samba-client-4.2.10-7.el7_2.x86_64.rpm 06041291bbacaa65968e5c15e65d7fb28846840b192139581d9aa19bf6d05beb samba-client-libs-4.2.10-7.el7_2.i686.rpm 8c31c60f8cc270b7e86d4b5f7dd3c3db9c060e5e75673b3a3337eb6420b93855 samba-client-libs-4.2.10-7.el7_2.x86_64.rpm 622825dd58550cf8e98d247d079f82e3d2c2d44333f7193ba7b1e637a15c83cf samba-common-4.2.10-7.el7_2.noarch.rpm d24f24bb3964e31cd59c69df78bfeefeca1c75a134174df0be364757b1b33888 samba-common-libs-4.2.10-7.el7_2.x86_64.rpm 79d46ce115fa8a5ed8dff5323f9fcd48380d53eb5b215461359b2f7b5adf7364 samba-common-tools-4.2.10-7.el7_2.x86_64.rpm 0e2649cb2ffa3cc1bc46adc717398302fafd19505920d670dcc19d765115ba82 samba-dc-4.2.10-7.el7_2.x86_64.rpm 017330cf223292625dbc706174271ea578c6873b2d41fa0e861e78c6c4b6b5a0 samba-dc-libs-4.2.10-7.el7_2.x86_64.rpm 29070202ccdd99d8658e87c71ce712f1f06d5cc3534b4d90990ab41a0e4cd369 samba-devel-4.2.10-7.el7_2.i686.rpm 4e03c1dfc3ecc77687cfeb51990634bdcbdc5768d92bf950815c831a7e40f585 samba-devel-4.2.10-7.el7_2.x86_64.rpm 976eac8aa4c6ef40fa3308507e7c57531fd305c0ea9426a8b95409f8e18e62aa samba-libs-4.2.10-7.el7_2.i686.rpm 7c3994acb7c3a4d0a2522b042f77a87e9220fc4f458b7cce8dd3f60fc2b614ca samba-libs-4.2.10-7.el7_2.x86_64.rpm d1f892959838210f6f63f7dc892068e5bde85dea22ec14db0a97b084501cb306 samba-pidl-4.2.10-7.el7_2.noarch.rpm 1f926bf228383a34160a83ab1f90aa4ff8c8e54cff12cba2f558f0725b30e76e samba-python-4.2.10-7.el7_2.x86_64.rpm 5ffff01abf79e9328726d7029e3a638ff5782aa43b2d9de433c4d5814fc444fe samba-test-4.2.10-7.el7_2.x86_64.rpm e4f4067424a3ac0370a8566871a82f4edb32e9baa398b977792f3f0b57b5715f samba-test-devel-4.2.10-7.el7_2.x86_64.rpm b507771944911796d6c59ec48f88af307260e19b3836d228cfdfd358969d59bf samba-test-libs-4.2.10-7.el7_2.i686.rpm aa964f62ae380e44cd124a25368824748e5d20e55102415068ffb9ba697c65a6 samba-test-libs-4.2.10-7.el7_2.x86_64.rpm 697eb0bcb08507645e0a1978a29ca134c3b7fd71fb9e77a6b887adcd8ecd92da samba-vfs-glusterfs-4.2.10-7.el7_2.x86_64.rpm 107884a502a8e44131bd7aeeba02317d211b0a52c37a7154441e48ca1cdad693 samba-winbind-4.2.10-7.el7_2.x86_64.rpm acb9021d7339bf06f64b91701082181a1cb1679349c14b47a58c73d7b5cb77a3 samba-winbind-clients-4.2.10-7.el7_2.x86_64.rpm 312cf5c2e79134cb905b6ce69867ee7935889349841ff30108242117225fc9d4 samba-winbind-krb5-locator-4.2.10-7.el7_2.x86_64.rpm 9045f7ec36fc584fc0051f7e42a546df2c347a167de3a73869e6a7c9d8c5ee15 samba-winbind-modules-4.2.10-7.el7_2.i686.rpm adf85c04209ca4ed846c8529df8d7fde3148e40d4c2bd635f557e9fc41c3ad4a samba-winbind-modules-4.2.10-7.el7_2.x86_64.rpm Source: 2ea1482b434b0a735289ccb72fcff96b31a10bdeca0d9529bb9bfefd8e12c651 samba-4.2.10-7.el7_2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 137, Issue 8 ***********************************************

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CentOS 6, iscsi issue
by m.roth＠5-cent.us 25 Jul '16

25 Jul '16

Hi, folks, Ok, I had iscsi working. Then I umounted the filesystem, and deleted the logical volume, then the RAID, and recreated it with a) 4 more drives (or was it six?), gave it a new RG name, and a new VD name. I can ping the IP, but can't rediscover it - just get "no portals found". I'm finding a fair number of people with this issue, googling, but not a lot of answers. Anyone know what I've done wrong? mark

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KMail
by Timothy Murphy 24 Jul '16

24 Jul '16

Any hope of KMail (and Kontact) coming to CentOS-7? What exactly is the problem? KMail seems to work on other Linux OS's. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin

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