Discuss March 2019

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71 discussions

Re: [CentOS] How to specify kernel version when restart kdump
by Benjamin Hauger 15 Apr '19

15 Apr '19

kdump operates by booting a fresh kernel to capture the context of a crashed kernel, and so the only way for kdump to dump a kernel is to crash it and cause kdump to invoke its post-crash kernel. You can manually force a running kernel to panic (and invoke a correctly-configured kdump) with the following command sequence: > echo 1 > /proc/sys/kernel/sysrq > echo c > /proc/sysrq-trigger Cheers, Ben On 3/25/19 7:19 PM, wuzhouhui wrote: > Hi, > > Is there a way to specify kernel version when (re)start kdump > service? Suppose I have install a new kernel and kdump will > generate kdump.img for new kernel in next boot. But I want kdump > to generate kdump.img for new kernel immediately, is it possible? > > Thanks. > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > https://lists.centos.org/mailman/listinfo/centos > -- Benjamin Hauger SysAdmin/CSDC-DMO Rm. 94 x8371

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Centos 7.6 & ether-wake
by Gregory P. Ennis 15 Apr '19

15 Apr '19

Everyone, I have not been able to get ether-wake to work waking up other centos 7.6 machines after the upgrade to Centos 7.6. Has anyone else had this problem, and if so any luck with a fix? Greg Ennis

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Getting slapd under CentOS 6 to log connections, etc.
by Robert Heller 31 Mar '19

31 Mar '19

I am running the stock OpenLDAP-servers on a CentOS 6 system. Everything is working just fine, but I am trying to debug connections from a Ubuntu (18.04) system and want to turn on logging in slapd, but although I can get slapd to create a log file, it never actually writes anything. I have these two lines in /etc/openldap/slapd.d/cn=config.ldif: olcLogFile: /var/log/slapd/log olcLogLevel: conns BER config ACL stats none And although /var/log/slapd/log gets created, nothing is ever written to it. What am I missing? -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller(a)deepsoft.com -- Webhosting Services

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CUPS issues
by mark 28 Mar '19

28 Mar '19

We've got this huge HP DesignJet Z9 printer, for printing posters. Except... I got the latest hplips installed, it knows this printer... but there are no poster-sized settings. Now, I've started hacking the .ppd, as I did six year ago for the old poster printer, but it seems, after a good bit of googling, that it would be easier, when I hit print from okular, and get the dialog window, to go to properties->page, and set it to custom, and set the width and height... except I can't: both width and height are grayed out. Now, I'm running as me. For reasons I don't need to get into, I shouldn't be doing this as root. Anyone know what I need to modify to all me to set this? Hacking the .ppd is half a day or a day of tedious work. mark

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how to unlock service cause it "start request repeated too quickly"?
by Creatxr 28 Mar '19

28 Mar '19

how to unlock service cause it "start request repeated too quickly"?

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do not uninstall old when yum install new
by wuzhouhui 26 Mar '19

26 Mar '19

Hi, I have a specific needs that requires yum do not to uninstall old version when install new one. For example, I found that yum install kernel will install new kernel, and old kernel will remained. But yum install <something-else> will uninstall old version after install new one, how to disable it? Thanks.

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http error when updating 7.5 ==> 7.6
by Fred Smith 26 Mar '19

26 Mar '19

Was just doing a (very) belated update on a 7.5 system and ran into this set of errors: ================================================================================ Package Arch Version Repository Size ================================================================================ Updating: polkit x86_64 0.112-18.el7_6.1 updates 168 k polkit-devel x86_64 0.112-18.el7_6.1 updates 42 k polkit-docs noarch 0.112-18.el7_6.1 updates 251 k Transaction Summary ================================================================================ Upgrade 3 Packages Total download size: 461 k Is this ok [y/d/N]: y Downloading packages: Finishing delta rebuilds of 3 package(s) (461 k) Some delta RPMs failed to download or rebuild. Retrying.. polkit-0.112-18.el7_6.1.x86_64 FAILED http://mirror.centos.org/centos/7/updates/x86_64/Packages/polkit-0.112-18.e…: [Errno 14] HTTP Error 416 - Requested Range Not Satisfiable Trying other mirror. polkit-devel-0.112-18.el7_6.1. FAILED http://mirror.centos.org/centos/7/updates/x86_64/Packages/polkit-devel-0.11…: [Errno 14] HTTP Error 416 - Requested Range Not Satisfiable Trying other mirror. polkit-docs-0.112-18.el7_6.1.n FAILED http://mirror.centos.org/centos/7/updates/x86_64/Packages/polkit-docs-0.112…: [Errno 14] HTTP Error 416 - Requested Range Not Satisfiable Trying other mirror. Error downloading packages: polkit-0.112-18.el7_6.1.x86_64: [Errno 256] No more mirrors to try. polkit-devel-0.112-18.el7_6.1.x86_64: [Errno 256] No more mirrors to try. polkit-docs-0.112-18.el7_6.1.noarch: [Errno 256] No more mirrors to try. I then browsed to the mirror shown above and downloaded the files with no trouble. I then did "yum localupdate" for the three downloaded files and they installed just fine. so, anybody know why we're getting the 416 error from yum but not from firefox? a little searching for that error indicates it is some kind of problem on the web host, I think. but it's weird. I don't need help, I'm good, but perhaps someone needs to look at whatever mis-configuration on the host(s) causes that. I originally left the repo file alone so it attempted to use the repolist but every repo failed. I then changed it to use the baseurl but it didn't help. So whatever the problem is, it isn't with just a single host. Fred -- ------------------------------------------------------------------------------- Under no circumstances will I ever purchase anything offered to me as the result of an unsolicited e-mail message. Nor will I forward chain letters, petitions, mass mailings, or virus warnings to large numbers of others. This is my contribution to the survival of the online community. --Roger Ebert, December, 1996 ----------------------------- The Boulder Pledge -----------------------------

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CentOS-announce Digest, Vol 169, Issue 7
by centos-announce-request＠centos.org 26 Mar '19

26 Mar '19

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-2019:0633 Important CentOS 7 ghostscript Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 25 Mar 2019 17:33:17 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2019:0633 Important CentOS 7 ghostscript Security Update Message-ID: <20190325173317.GA9569(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2019:0633 Important Upstream details at : https://access.redhat.com/errata/RHSA-2019:0633 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: fed299b46ff9a9a7ade1b8d52a4c6859d0a3ccfd5ba6db1d6739b2cdc70c521b ghostscript-9.07-31.el7_6.10.i686.rpm 0c91be5be0817663c0bffd9c37b569caa5e50b3413d479fa298c6b3fb2102f25 ghostscript-9.07-31.el7_6.10.x86_64.rpm 095f0c811670f0e727c95a2d4226122cd34d97863d68643053225ab0d03a492f ghostscript-cups-9.07-31.el7_6.10.x86_64.rpm 879ef4fb0b05f291ceefde08805694777b770450938a62ba932604e72acd75d7 ghostscript-devel-9.07-31.el7_6.10.i686.rpm 886805349e730d84e31ebec2d10ad24ded7d99a56595112b40a273761d8ab979 ghostscript-devel-9.07-31.el7_6.10.x86_64.rpm b7adc36e61889e9695fe2461e7f0f9416e57d007a6b3df25f01acf4c0191ce29 ghostscript-doc-9.07-31.el7_6.10.noarch.rpm f641f2ba7c4e0f9da1356bc891778dbc87ceeb8fe6fa3f08df9109bdbc32b162 ghostscript-gtk-9.07-31.el7_6.10.x86_64.rpm Source: 2013a61cf7a054412f08b9c18b823b160fb104e04fb0cf7f2ac2197910e49e55 ghostscript-9.07-31.el7_6.10.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 169, Issue 7 ***********************************************

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How to specify kernel version when restart kdump
by wuzhouhui 26 Mar '19

26 Mar '19

Hi, Is there a way to specify kernel version when (re)start kdump service? Suppose I have install a new kernel and kdump will generate kdump.img for new kernel in next boot. But I want kdump to generate kdump.img for new kernel immediately, is it possible? Thanks.

1 0

detect agfl count corruption and reset agfl
by Richard Flack 25 Mar '19

25 Mar '19

Hi there, My apologies if this is the wrong place to post this, but I was wondering if anyone had any information on whether or not the following patch has or will make its way into the CentOS Kernel? https://patchwork.kernel.org/patch/10283095/ We are currently experiencing this problem with the latest version of CloudLinux (based on CentOS), so I believe it isn't currently included. Is there any particular procedure to request a patch for future Kernel releases? -- Best Wishes, Richard

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Discuss March 2019