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CentOS Linux 7.5 (1804) Released

• Iwan-Zotow 8y ago
  Windows 10 is only 1803
  • alberth 8y ago
    Doesn't the "1803" version format mean "YYMM" e.g. "2018 March"
    • sgtmas2006 8y ago
      Yes, it is.
  • deleted 8y ago
    [deleted]
• hd4 8y ago
  Is it true that most of Silicon Valley runs on CentOS?
  • thrusong 8y ago
    I watched a video of a recent presentation from someone at Facebook who manages their operating systems and he said they use CentOS across their fleet, so that's probably a sizeable amount.
    • h1d 8y ago
      Any reason being said or any guesses to the reasons?
  • mlindner 8y ago
    It's literally the oldest most out of date Linux distro available (even this update), so probably. CentOS recently added Python 2.7 instead of Python 2.6...
    • dnhz 8y ago
      Well what are the downsides of this? One is not limited to Python 2.7 because of the operating system, for instance.
      • cpitman 8y ago
        We (Red Hat) also released an easy way to do a side by side install of newer tooling without impacting the OS. Python 3 was released on Red Hat Enterprise Linux in 2013, and we currently support Python 3.6. Here's more on how software collections work and what is released: https://developers.redhat.com/products/softwarecollections/overview/ https://developers.redhat.com/products/softwarecollections/o...
    • sciurus 8y ago
      I'm pretty sure RHEL 7.0, which was released in 2014, shipped with Python 2.7 as the default.
    • digitalzombie 8y ago
      IIRC it's a clone of redhat and redhat is in the business of support. Big companies goes to red hat because they promise to support software beyond their life cycle for years. So that's that.
    • rdtsc 8y ago
      You see old and crusty, users see a stable software API that receives security updates for decades.
  • user5994461 8y ago
    It's mixed CentOS, Debian and Ubuntu. Ubuntu is limited to younger folks and younger companies.
    • tannhaeuser 8y ago
      Not SV, but according to my anecdata, RHEL/CentOS is more oftenly used in enterprise deployments, while Debian (and Ubuntu) traditionally dominates Web deployments. A Debian-style Apache httpd setup with structured config files and a2ensite, a2enmod, etc. is also what mainstream shared hosting workflows are based on.
      • cthalupa 8y ago
        Anecdata as well, but in the years I was doing consulting in the shared hosting biz, CentOS was the clear frontrunner based on everyone I did for work. CentOS and WHM/cPanel. And half of them had screwed up their entire setup by installing the Remi repos. Sigh.
      • eatonphil 8y ago
        I've been surprised how many SMBs use CentOS, I expected them to be mostly Debian too.
    • h1d 8y ago
      What kind of experience do you have to say that? (Just asking)
      • deleted 8y ago
        [deleted]
    • Thaxll 8y ago
      Netflix runs 150k servers on Ubuntu so ...
  • Teknoman117 8y ago
    The company I work for mostly uses Gentoo.
• jlgaddis 8y ago
  Make sure to review the "Known Issues" for both CentOS 7.5 Known [0] and RHEL 7.5 [1]. [0]: https://wiki.centos.org/Manuals/ReleaseNotes/CentOS7.1804?action=show&redirect=Manuals%2FReleaseNotes%2FCentOS7#head-53fe5d882e6f118847a514b3f9998ffd75f73b3b https://wiki.centos.org/Manuals/ReleaseNotes/CentOS7.1804?ac... [1]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.5_release_notes/known-issues https://access.redhat.com/documentation/en-us/red_hat_enterp...
• gaius 8y ago
  Make sure you get VirtualBox 5.2.12 if you want to run it as guest, or the additions won’t work. Found that out last week!
  • gaius 8y ago
    Curious about the downvotes, is this statement factually wrong? It does not work with 5.2.10, because I tried it.
    • vithlani 8y ago
      The downvotes are because you helpfully mentioned something about Virtualbox. This is HN; you are supposed to plug Docker here....
• deleted 8y ago
  [deleted]
• forapurpose 8y ago
  Where are good places to find CentOS technical documentation and community? I can't find a manual online, and the other resources seem insufficient. I think I must be missing something: These forums seem to have not great content or traffic (at least when I looked): https://www.centos.org/forums/ https://www.centos.org/forums/ The FAQ is only a few questions, and the How-tos and Tips & Tricks are very uneven in their coverage and often outdated ("How to setup Firefox 4 (i386 and x86_64) on CentOS 5"). https://wiki.centos.org/FAQ/CentOS7 https://wiki.centos.org/FAQ/CentOS7 https://wiki.centos.org/HowTos https://wiki.centos.org/HowTos https://wiki.centos.org/TipsAndTricks https://wiki.centos.org/TipsAndTricks
  • SirMonkey 8y ago
    Somethings are a bit different, but it's "almost the same" https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installation_guide/index https://access.redhat.com/documentation/en-us/red_hat_enterp... (as an example) Most of the time I look for RH Stuff or fedora and do a mental downgrade of some of the tools.
  • bubblethink 8y ago
    RHEL docs.
  • jlgaddis 8y ago
    There is a fair amount of content on the CentOS wiki but, as you've noticed, some of it is extremely outdated or was written for older CentOS versions. One page on there that I came across recently was almost 10 years old! Depending on what the topic is, the age of an article may not be all that relevant -- the important thing is to make sure that it's aimed at the version of CentOS that you're running. Some of those old wiki pages were written for CentOS 4 and that's been EOL for over six years! If you have run into problems or have some specific questions, the CentOS forums can be a great resource. There seems to be some pretty knowledgeable folks there and the moderators will, at the least, ensure that no incorrect or outdated information is given out. Finally, remember that Red Hat publishes a tremendous amount of technical documentation for RHEL 7 [0] which (with a few exceptions) also applies directly to CentOS 7. The PDF versions of their "Installation Guide" [1] and "System Administrator's Guide" [2] for RHEL 7 weigh in at 489 and 602 pages, respectively. At times, you may come across knowledge base articles or other documentation on their "customer portal" (access.redhat.com) [3] but that you can't see because it requires an account. Fortunately, they have a (free!) "Red Hat Enterprise Linux Developer Program" [4] that you can sign up for which will give you access to that "customer portal" in addition to providing you with a valid license to run RHEL (as well as a lot of their other stuff) for development/testing purposes. See the original announcement [5] and/or press release [6] for more information. [0]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/ https://access.redhat.com/documentation/en-us/red_hat_enterp... [1]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/pdf/installation_guide/Red_Hat_Enterprise_Linux-7-Installation_Guide-en-US.pdf https://access.redhat.com/documentation/en-us/red_hat_enterp... [2]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/pdf/system_administrators_guide/Red_Hat_Enterprise_Linux-7-System_Administrators_Guide-en-US.pdf https://access.redhat.com/documentation/en-us/red_hat_enterp... [3]: https://access.redhat.com/documentation/en-us/ https://access.redhat.com/documentation/en-us/ [4]: https://access.redhat.com/products/Red_Hat_Enterprise_Linux/Developer https://access.redhat.com/products/Red_Hat_Enterprise_Linux/... [5]: https://developers.redhat.com/blog/2016/03/31/no-cost-rhel-developer-subscription-now-available/ https://developers.redhat.com/blog/2016/03/31/no-cost-rhel-d... [6]: https://www.redhat.com/en/about/press-releases/red-hat-expands-red-hat-developer-program-no-cost-red-hat-enterprise-linux-developer-subscription https://www.redhat.com/en/about/press-releases/red-hat-expan...
• eatandwonder 8y ago
  Technical problem for which I haven't found a hint of an answer online: I'm installing CentOS 7.0 x64 on a Thinkpad, my first Linux install. The install seems to go fine but on boot, right after the BIOS splash screen, in text mode, I see the following, then it stops (I'm going to use italics to be nice to people with small screens): Failed to open \EFI\BOOT\grubx64.efi - Not Found Failed to load image \EFI\BOOT\grubx64.efi: Not Found start_image() returned Not Found Secure boot is enabled, in case that's important. I've no idea why backslashes are used but I'm going to overlook that for now. I booted to rescue mode and looked at the file system. /mnt/sysimage/boot/efi/EFI/BOOT/ indeed lacks grubx64.efi; I did find /mnt/sysimage/boot/efi/EFI/centos/grub64.efi [0] (I'm assuming the paths in the error message are all relative to /mnt/sysimage/boot/efi, because that's the only place I see relevant files). Do I just copy the grubx64.efi file to ../EFI/BOOT/? Change the path in some config file to point at ../EFI/centos/? Or am I on the completely wrong path? [0] Sh-ucks. My notes say the filename is ../centos/grub64.efi; the error message says grubx64.efi (i.e., with an x between grub and 64). Hopefully it's a typo in my notes. I don't have the laptop with me to check.
  • eatandwonder 8y ago
    For some reason I can't edit my post. I wanted to write that I know Hacker News is not a technical support forum, but I'm a little stuck so I was hoping some kind CentOS veteran could help or point me to where I can find answers to questions like this one. Thanks!
  • Kostic 8y ago
    Any specific reason why you aren't using latest Fedora instead of CentOS? If you want to stick with CentOS, I would suggest you try with Secure Boot turned off.
    • eatandwonder 8y ago
      > try with Secure Boot turned off I tried. I don't have the details, but no luck. Thanks.
  • Diggity 8y ago
• Diggity 8y ago
  One major undocumented problem that I did not see in the patch notes involves openldap. Specifically there is some error in generating a PID file in the system-d service call. I solved the problem by removing/commenting out the run PID line in /usr/lib/systemd/system/slapd.service
  • jlgaddis 8y ago
    There are a few "known issues" with OpenLDAP [0] in the RHEL 7.5 release notes but I don't see that one mentioned. ICYMI, the openldap-servers package is "deprecated and will not be included in a future major release of Red Hat Enterprise Linux". For RHEL, that means it will remain in the 7.x versions but will not be included in 8.x when it is released (which should be Real Soon Now(tm)). For CentOS, that also (likely) means that OpenLDAP will not be included in future (major) versions. [0]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.5_release_notes/known_issues_authentication_and_interoperability https://access.redhat.com/documentation/en-us/red_hat_enterp...
    • patoh 8y ago
      OpenLDAP-LTB provides up-to-date openldap packages for CentOS - http://ltb-project.org/documentation/openldap-rpm http://ltb-project.org/documentation/openldap-rpm openldap upstream suggest using these on CentOS / RHEL over the redhat packages, if operating the server components.
      • vetinari 8y ago
        Redhat ships with 389 directory server for several years already (former Netscape Directory) and when you install FreeIPA, you will get 389 by default. I don't think FreeIPA even works with OpenLDAP.
• gjvc 8y ago
  Be sure to check https://ius.io/ https://ius.io/ for more recent releases of commonly-used packages. CentOS, being whitelabelled RHEL is sometimes behind the latest and greatest versions. Most relevant to CentOS / this post is https://dl.iuscommunity.org/pub/ius/stable/CentOS/7/x86_64/repoview/ https://dl.iuscommunity.org/pub/ius/stable/CentOS/7/x86_64/r... I've had good luck with their version of Python 3.6 but as always, YMMV with others.