Discuss June 2018

discuss@lists.centos.org

93 participants
84 discussions

Centos 7 on Dell Latitude E6500
by Rainer Fügenstein 09 Oct '19

09 Oct '19

Hi, I tried to install Centos7 x86_64 minimal 1503-01 from an USB flash drive on my old Dell Latitude E6500 laptop. boots up in text mode, switches text resolution, writes: Started Show Plymouth Boot Screen Reached Target Paths Reached Target Basic System. then hangs for some time, eventually starting dracut emergency shell. log says: multipathd: sdb: spurious uevent, path already in pathvec multipathd: sda: spurious uevent, path already in pathvec interesting: sdb is the internal 240GB kingston SSD drive (existing ntfs bitlocker partition recognized as sdb1) sda is the write protected USB stick, recognised as CDROM drive. 4GB rom intel 45 express chipset mobile intel GMA 4500MHD graphics intel 5100AGN wifi what to try next? any additional infos I can give you? thnx in advance. -- Best regards, Rainer mailto:rfu@oudeis.org

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/boot partition too small
by KM 02 Oct '19

02 Oct '19

First off - let me say I am not an administrator. I need to know if there is an easy way to increase my /boot partition. When I installed CentOS 6 after running 5, it was my oversight not to increase the /boot size. it's too small and I can't do yum updates. if it's not easy to actually increase it, is it safe to take a chunk in my root filesystem (like /new.boot or something) and just mount it as /boot from now on so it uses the space or is that not a good idea? I am sure I could easily copy the rpms/kernel stuff over to it and then unmounts the real /boot and mount this new area as /boot. Can you administrators let me know what you think of all this? Thanks in advance. KM

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dmarc auth on incoming email
by Fred Smith 23 Jan '19

23 Jan '19

Just reading up on DMARC, toying with setting it up to auth against incoming emails. (but not configure my domain to use dmarc, or at least not yet) ran into an article about opendmarc, which is available on epel. but when I took a look at the opendmarc website and the git pages it doesn't appear to have been updated in several years. while I see that it is still available from epel, I wonder if anyone knows the project status? Is it still active? are there any other viable alternatives? thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- The eyes of the Lord are everywhere, keeping watch on the wicked and the good. ----------------------------- Proverbs 15:3 (niv) -----------------------------

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Server disposal
by Kenneth Porter 28 Jul '18

28 Jul '18

Can anyone recommend a mailing list or other resource for finding a home for old server hardware? I've got a growing bone pile of retired Dell and Supermicro rack servers. I've stripped the drives and memory but hate to see the other old parts go to waste, like old RAID controllers and other proprietary parts.

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Samba issues with Win 10
by mark 04 Jul '18

04 Jul '18

Hi, folks, Just ran into a problem: someone with a new laptop, running Win 10, version 1709, tried to map their home directory (served from a CentOS 6.9 box, and it fails, with Windows complaining that it no longer supports SMBv1, and if you go to their site, you can install support for that manually.... The server running samba can *not* be updated to 7 - we have a lot of stuff based off it, and most of our users use it, one way or another, so it's a major thing when we do finally upgrade (or, more likely, replace the server). Has anyone run into this, and if so, any workarounds on the Linux end? mark

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ZFS on Linux repository
by Gionatan Danti 04 Jul '18

04 Jul '18

Hi list, we all know why ZFS is not included in RHEL/CentOS distributions: its CDDL license is/seems not compatible with GPL license. I'm not a layer, and I do not have any strong opinion on the matter. However, as a sysadmin, I found ZFS to be extremely useful, especially considering BTRFS sad state. I would *really* love to have ZFS on Linux more intergrated with current CentOS. From what I know (and I can go wrong, obviously), while the incompatible licenses prevent CentOS from shipping it, nothing should prevent to have a package for enabling *its repository*, better yet the kmod-enabled one. I was thiking to something as a ZFS SIG, where we can simply issue "yum install zfs-sig" and have the correct kmod-enabled repository enabled. I searched the list but I did not found anything regarding native ZFS. Any feedback on the matter is welcomed. Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

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Centos 7.5 on Vmware
by Gregory P. Ennis 02 Jul '18

02 Jul '18

Everyone, I am in the initial study phase of putting together a larger virtual server while using Centos 7.5 as the operating system of choice for the individual virtual machines. How do you all like VMware for this, or what other software allows for the development of virtural servers that use Centos 7.5 Thanks ahead of time for giving me a head start with your experiences!!!! -- Greg Ennis

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CentOS7/Mate Qt bugs/features?
by James Pearson 02 Jul '18

02 Jul '18

We have recently migrated from CentOS6/Gnome to CentOS7/Mate - and have noticed 'glitches' with some Qt applications that appears to be linked to the 'org.mate.Marco.general' 'compositing-manager' setting - and wondered how we 'fix' the issue ... Below is a PyQT4 python script that shows the issues: 1. With 'compositing-manager' set to 'true' (I believe the default setting): gsettings set org.mate.Marco.general compositing-manager true Running the script and the window background is transparent - which is fine However, if the pull down menu is selected and the 'Toggle' button pressed, the menu stays on the screen - and stays put even if the window is moved 2. With 'compositing-manager' set to 'false' : gsettings set org.mate.Marco.general compositing-manager false Running the script and the window background is no longer transparent - which is not good, but the pull down menu issue is fine ... We're using Nvidia cards with the Nvidia drivers - but I can also reproduce the issue on a Vmware player instance It would be good to know if anyone else can reproduce this with Mate ? Using CentOS7/Gnome3 works as expected (transparent background and pull down menu is fine) Anyone have any idea what the problem(s) might be and how to fix it/them ? Thanks James Pearson Python script: #!/usr/bin/python # # gsettings set org.mate.Marco.general compositing-manager true # # gsettings set org.mate.Marco.general compositing-manager false from PyQt4.QtGui import * from PyQt4 import QtCore import sys class MyWidget(QFrame): def __init__(self, parent=None): super(MyWidget, self).__init__(parent) self.setAttribute(QtCore.Qt.WA_TranslucentBackground) self.state = 1 self.combo = QComboBox() for a in ['A','B','C']: self.combo.addItem(a) self.btn = QPushButton("Toggle") self.btnClose = QPushButton("Close") self.btnClose.clicked.connect(self.close) layout = QVBoxLayout() layout.addWidget(self.combo) layout.addWidget(self.btn) layout.addWidget(self.btnClose) layout.setContentsMargins(50,50,50,50) self.setLayout(layout) self.btn.clicked.connect(self.updateComboState) def updateComboState(self): self.state = (self.state%2)+1 self.combo.setProperty("state", self.state) self.combo.style().unpolish(self.combo) self.combo.style().polish(self.combo) self.update() ss = """ *[state="1"] { background: rgb(50,50,100); } *[state="2"] { background: rgb(50,100,50); } """ if __name__ == "__main__": qapp = QApplication(sys.argv) myApp = MyWidget() myApp.setStyleSheet(ss) myApp.show() sys.exit(qapp.exec_())

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Re: [CentOS] Semi-OT: ipmitool or ipmicfg: set BMC to use NIC 2
by mark 30 Jun '18

30 Jun '18

Date: Wed, 27 Jun 2018 20:45:44 -0400 From: Jonathan Billings <billings(a)negate.org> > On Wed, Jun 27, 2018 at 05:14:06PM -0400, mark wrote: > >> I do see one option of "defgw macaddr" - is that supposed to be a MAC >> external to the server, or can I use the MAC of eth1 (or whatever the >> stupid, unrememberable name is)? > > As mentioned earlier, the BMC is a different MAC from any interface > you might see from the OS side. Think of it as a separate computer that > shares a physical network port (assuming it doesnt have a dedicated port). > Imagine what would happen if you put two devices on the network with > the same MAC. You don't want to do that. defgw macaddr is for setting > what it thnks the Default Gateway's MAC address is. > > You will need to set the IP, netmask and gateway using the appropriate > tool (I prefer ipmitool). keep in mind that because the device shares a > port you most likely wont be able to use IPMI to talk over the LAN to the > device from the OS on the same box. It's the end of the week, and maybe I'm being dense, but I still don't get it: how do I tell the BMC to use eth1? Do I give it eth1's MAC address as a gateway? mark

3 2

Replacement web server time - catalog CPAN and PEAR installs
by Gary Stainburn 29 Jun '18

29 Jun '18

I'm looking to replace an OLD Fedora web server with a Centos 7 one. I'm currentlly in the process of documenting what is on the server ready to install the new one. While most things have been done with RPMs, some installs have had to be done via CPAN for Perl and PEAR for PHP. Is there a way of getting a list of everything that has been installed using these tools?

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Discuss June 2018