{"id":13521,"date":"2012-09-11T13:17:00","date_gmt":"2012-09-11T12:17:00","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=13521"},"modified":"2012-09-11T13:17:00","modified_gmt":"2012-09-11T12:17:00","slug":"linux-integration-services-v3-4-for-hyper-v-is-released","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=13521","title":{"rendered":"Linux Integration Services v3.4 For Hyper-V Is Released"},"content":{"rendered":"<p>A new version of the Hyper-V integration components for Linux has been <a href=\"http:\/\/www.microsoft.com\/download\/details.aspx?id=34603\" target=\"_blank\">released<\/a> by Microsoft.&#160; The changes that I can see are:<\/p>\n<ul>\n<li>You can have more than 4 virtual CPUs in the VM.&#160; The actual limit is determined by Hyper-V (which scales out to 64 vCPUs on WS2012 Hyper-V and Hyper-V Server 2012).<\/li>\n<li>They explicitly mention full support for the mouse in Linux guest OSs<\/li>\n<\/ul>\n<p>The supported guest OSs are now:<\/p>\n<ul>\n<li>Red Hat Enterprise Linux 5.7, 5.8, 6.0-6.3 x86 and x64<\/li>\n<li>CentOS 5.7, 5.8, 6.0-6.3 x86 and x64<\/li>\n<\/ul>\n<p>That actually looks like older versions (5.7 and 5.8) have been added, as well as the newer 6.3 versions.<\/p>\n<p>There are some interesting notes on Linux guests in the accompanying documentation.&#160; Some highlights:<\/p>\n<ul>\n<li>Formatting a VHDX file with an ext3 file system might fail. To work around this issue, either use an ext4 file system, or create the .VHDX file with a smaller block size, such as 1 MB.&#160; Using the ext4 file system is recommended for production deployments of Linux on Hyper-V.<\/li>\n<li>Red Hat Enterprise Linux (RHEL) did not include support for 4K drives until version 6.0, so be careful when deploying 4K disks!<\/li>\n<li>The Hyper-V bridge.sys driver is not compatible with all WI-FI routers. This might result in a virtual machine not receiving an address through DHCP \u2013 this only occurs if the virtual switch is bound to a WI-FI NIC.&#160; The workaround is to configure the WI-FI with a static IP reservation for the WI-FI NIC, and then statically defining that IP on the WI-FI NIC.<\/li>\n<li>If you want to use kdump functionality, configure kdump before installing the Linux Integration Services<\/li>\n<li>If you have virtual machines configured to use more than 7 virtual processors , you should add \u201cnuma=off\u201d to the GRUB boot.cfg to work around a known issue in the Linux kernel.<\/li>\n<li>If you have virtual machines configured to use more than 30 GB RAM, you should add \u201cnuma=off\u201d to the GRUB boot.cfg.<\/li>\n<\/ul>\n<p>As usual, the following features are not available in this version of Linux Integration Services:<\/p>\n<ul>\n<li>Integration services: Volume Snapshot Backup<\/li>\n<li>Networking: TCP Offload<\/li>\n<\/ul>\n<div id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:70de4244-7f78-48bb-82ff-00773c4f2e78\" class=\"wlWriterEditableSmartContent\" style=\"float: none; padding-bottom: 0px; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px\">Technorati Tags: <a href=\"http:\/\/technorati.com\/tags\/Linux\" rel=\"tag\">Linux<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Hyper-V\" rel=\"tag\">Hyper-V<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Virtualisation\" rel=\"tag\">Virtualisation<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A new version of the Hyper-V integration components for Linux has been released by Microsoft.&#160; The changes that I can see are: You can have more than 4 virtual CPUs in the VM.&#160; The actual limit is determined by Hyper-V (which scales out to 64 vCPUs on WS2012 Hyper-V and Hyper-V Server 2012). They explicitly &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=13521\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Linux Integration Services v3.4 For Hyper-V Is Released&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[20],"tags":[181,184,195],"class_list":["post-13521","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-linux","tag-virtualisation"],"aioseo_notices":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/13521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13521"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/13521\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}