Discuss August 2014

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173 participants
168 discussions

Re: [CentOS] lvm module missing in initramfs
by Vlado Potisk 28 Aug '14

28 Aug '14

> After upgrading the kernel package, my Centos 7 server didn't boot. > > Here is a small summary: > old kernel = kernel-3.10.0-123.4.4.el7.x86_64 (everything just fine) > new kernel = kernel-3.10.0-123.6.3.el7.x86_64 > root partition is on a primary partition, NOT on a LVM volume > /var partition is on a LVM volume > new kernel's boot problem = systemd cannot mount /var partition saying > requirements failed or something like that > > I have find out that the new kernel's initramfs image does not contain the > lvm module while the old kernel's initramfs did. > > I have created a new initramfs with lvm using dracut and could boot the > server successfully. However I do not consider this as a fix, and don't > know how to find the primary cause of the problem. I need some help finding > out who's to blame: Update: I did some tests on a very similar Centos 7 server and could reproduce the problem with an older kernel. So kernel version doesn't matter. After swapoff -a the mkinitrd command produces an initamfs image WITHOUT the lvm. The system cannot boot with it. Then after swapon -a the mkinitrd creates an image WITH the lvm module. Any ideas why? Is it a bug? On the original system was the swap not disabled, but replaced with an encrypted swap (one added line in crypttab, one line changed in fstab). And when the next kernel update came, the server have become unusable as I described in my first post.

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EL7, grub-crypt?
by Darod Zyree 28 Aug '14

28 Aug '14

Hi, Whats the new way of creating sha512 passwords in EL7? In Centos6 I used grub-crypt but that does not exist anymore.

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USB Boot
by Matt 28 Aug '14

28 Aug '14

I noticed that the Supermicro X9SCL has a USB type-a port right on the motherboard. http://www.supermicro.com/products/motherboard/Xeon/C202_C204/X9SCL.cfm Has anyone used a port like this to boot the core OS and used the physical drives for OpenVZ and KVM containers? I figure a 64GB thumb drive would work. Anyone done this or will a USB thumb drive not stand up too the load? Seems much easier then using a SATA SSD drive but I imagine you still have to find a more durable USB drive.

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Packages cmake (base) and metis (epel) conflict with each other
by Peter Wood 27 Aug '14

27 Aug '14

[root@build6 ~]# cat /etc/redhat-release CentOS release 6.5 (Final) [root@build6 ~]# [root@build6 ~]# uname -a Linux build6 2.6.32-431.23.3.el6.x86_64 #1 SMP Thu Jul 31 17:20:51 UTC 2014 x86_64 x86_64x86_64 GNU/Linux [root@build6 ~]# yum clean all Loaded plugins: fastestmirror, security Cleaning repos: base extras updates Cleaning up Everything Cleaning up list of fastest mirrors [root@build6 ~]# [root@build6 ~]# yum --enablerepo=epel install cmake metis Loaded plugins: fastestmirror, security Determining fastest mirrors * base: mirror.keystealth.org * epel: mirrors.solfo.com * extras: mirror.san.fastserv.com * updates: repos.lax.quadranet.com base | 3.7 kB 00:00 base/primary_db | 4.4 MB 00:00 extras | 3.4 kB 00:00 extras/primary_db | 19 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 4.7 MB 00:00 Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package cmake.x86_64 0:2.6.4-5.el6 will be installed ---> Package metis.x86_64 0:5.1.0-1.el6 will be installed --> Processing Conflict: metis-5.1.0-1.el6.x86_64 conflicts cmake < 2.8 --> Finished Dependency Resolution Error: metis conflicts with cmake-2.6.4-5.el6.x86_64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest [root@build6 ~]# I don't recall ever running into a conflict between packages in base and packages in epel repositories. Anyone else getting the same error? Thanks, -- Peter

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mixing MX and CNAME
by aurfalien 27 Aug '14

27 Aug '14

Hi, Has any one had problems with mail clients were your DNS is like this; doman.com MX 50 mail.domain.com domain.com MX 100 mail2.domain.com domain.com CNAME www.domain.com -aurf

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downloading Centos to thumb drive?
by Tom Poe 27 Aug '14

27 Aug '14

Hello: New to linux, and Centos. Can I plug thumb drive into computer, and download Centos directly to thumb drive, then move thumb drive to another desktop and use it like a "live CD" to install it on that computer? Thanks for any help. Tom

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Copy on write loop block driver
by Jason Pyeron 27 Aug '14

27 Aug '14

I am running on the Centos 6.5 x86_64 boot disk. # uname -a Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux I have been running ddrescue for a while and now it is time to check the progress. I want to take the oldhd.img output from ddrescue and load it to satrt performing recovery (LVM, then filesystem) but I want to do a copy on write with that. I fetched http://www.atcomputing.nl/Tools/cowloop/packages/cowloop-3.2.0.1.tar.gz, built it root@localhost ~/cowloop-3.2.0.1 # cowdev -a /root/oldhd.img /root/oldhd.cow Cannot open /dev/cow/ctl: No such device or address So I: root@localhost /dev # mkdir cow root@localhost /dev # cd cow/ root@localhost /dev/cow # mknod /dev/cow/ctl b 241 255 But I still get a root@localhost ~ # cowdev -a /root/oldhd.img /root/oldhd.cow Cannot open /dev/cow/ctl: No such device or address Listing /proc/devices I do not see 241. What am I doing wrong here? -Jason -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

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CentOS-announce Digest, Vol 114, Issue 14
by centos-announce-request＠centos.org 27 Aug '14

27 Aug '14

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://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. CEEA-2014:1094 CentOS 7 libvpx Enhancement Update (Johnny Hughes) 2. CEBA-2014:1093 CentOS 7 initscripts BugFix Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 26 Aug 2014 12:54:55 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEEA-2014:1094 CentOS 7 libvpx Enhancement Update To: centos-announce(a)centos.org Message-ID: <20140826125455.GA55889(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Enhancement Advisory 2014:1094 Upstream details at : https://rhn.redhat.com/errata/RHEA-2014-1094.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: fb4b3575d105e8ad5bf96c2b8cee1a0cd555b511987d93e32cebf2bae9dfaa40 libvpx-1.3.0-5.el7_0.i686.rpm 508e00f95679d091d759eda774ffb40d8d31bbf9372093d47b748b534cc6a5c2 libvpx-1.3.0-5.el7_0.x86_64.rpm c47cc43057fca847261a5b216834b087e38398a791ba1bfa325d19533993d4fb libvpx-devel-1.3.0-5.el7_0.i686.rpm ea1069c1245e430f88698de7b4587b400d143d7c77592fa20692bfb8d02c5d1b libvpx-devel-1.3.0-5.el7_0.x86_64.rpm 6be9db707bfe9e0a947dd7c07a60e1d35a2d976e3317a56c6102eed7b91ce668 libvpx-utils-1.3.0-5.el7_0.x86_64.rpm Source: a9b074a966daa78bbaaf0320029ffdc721bdb0e4ed9d02cb735897354470ba88 libvpx-1.3.0-5.el7_0.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Tue, 26 Aug 2014 12:55:13 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2014:1093 CentOS 7 initscripts BugFix Update To: centos-announce(a)centos.org Message-ID: <20140826125513.GA55958(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2014:1093 Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-1093.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 2f73759fcb2474eaea36c465d1a086a9820c88287577590f4fa4ddebab344964 debugmode-9.49.17-1.el7_0.1.x86_64.rpm 8895e1ef54776c0896212abe98edd9ca613ce40caa877a93a82894f5ea612fb3 initscripts-9.49.17-1.el7_0.1.x86_64.rpm Source: 9c8ce4716a73bbb397f83fbd7f172947e98124ebb67feb04ea96823d654bfbdb initscripts-9.49.17-1.el7_0.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 114, Issue 14 ************************************************

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Re : Re: Installation of dongle wifi (TP-Link: TL-WDN4200) under Centos 6.5 (Final)
by Eric Perspicace 27 Aug '14

27 Aug '14

Dear Akemi, Thanks for the links. I will try. Regards, Eric --- Message initial --- De : "Akemi Yagi" <amyagi(a)gmail.com> Envoyé : 26 août 2014 23:24 A : "CentOS mailing list" <centos(a)centos.org> Objet : Re: [CentOS] Installation of dongle wifi (TP-Link: TL-WDN4200) under Centos 6.5 (Final) On Tue, Aug 26, 2014 at 2:15 PM, Akemi Yagi <amyagi(a)gmail.com> wrote: > On Tue, Aug 26, 2014 at 1:53 PM, Eric Perspicace > <perspi_eric057(a)hotmail.com> wrote: >> Dear Akemi, >> >> Thanks for your quick reply. I have to jump between Win 7 and Centos 6.5 as my computer contains both OS (dual boot). >> The ID of my wireless adapter is the following: >> >> ID: 148F:3573 >> >> Do you think that I can use this one as my ID is not listed: kmod-rt2870sta > > The IDs must match. What you can do is to file a request to build the > driver with ELRepo here: > > http://elrepo.org/bugs/ Another (interim) solution is to use ELRepo's kernel-ml: http://elrepo.org/tiki/kernel-ml I just checked it and it includes the rt2800usb driver that covers your device. Akemi _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Installation of dongle wifi (TP-Link: TL-WDN4200) under Centos 6.5 (Final)
by Eric Perspicace 26 Aug '14

26 Aug '14

Dear all, I would like to know how I could run my dongle wifi TP-Link (Ref: TL-WDN4200, version 1) under Centos 6.5 (Final). Should I create by myself the corresponding driver or does exist another way? When I ran lsusb I got: Ralink Technology RT3573 Wireless Adapter Thanks for your help. Regards, Eric

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Discuss August 2014