\n\tI want to show you how to change an IDE disk to a VirtIO disk in an already done guest. In my example it is a FreeBSD 10.3 guest:\n<\/p>\n
\n\tFirst open your guest's \/etc\/fstab and change:\n<\/p>\n
\nall \/dev\/ada0pX to \/dev\/vtbd0pX (FreeBSD only)\nall \/dev\/sdaX to \/dev\/vdaX (Linux only)<\/pre>\n\n\tNow shutdown the guest and connect to your KVM host's shell. Then type:\n<\/p>\n
\n# virsh edit <SERVER_DOMAIN><\/pre>\n\n\tfind following line:\n<\/p>\n
\n<disk type='file' device='disk'>\n ...\n <target dev='hda' bus='ide'\/>\n ...\n<\/disk><\/pre>\n\n\tand change it to\n<\/p>\n
\n<target dev='vda' bus='virtio'\/><\/pre>\n\n\talso remove all occurance of "<address type=…" within the same disk section. On save KVM will regenerate the line for you. Note that this part is needed for correct disk values wihtin the guest!\n<\/p>\n
\n\tNow restart your guest and everything should be running.\n<\/p>\n
\n# virsh start >SERVER_DOMAIN><\/pre>\n\n\tPLEASE NOTE: This method has worked for me on any Linux\/FreeBSD guest but apparently there were some windows installations were this method broke the MBR, so please do a backup first!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
I want to show you how to change an IDE disk to a VirtIO disk in an already done guest. In my example it is a FreeBSD 10.3 guest: First open your guest's \/etc\/fstab and change: all \/dev\/ada0pX to \/dev\/vtbd0pX (FreeBSD only) all \/dev\/sdaX to \/dev\/vdaX (Linux only) Now shutdown the guest and connect to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,7],"tags":[],"class_list":["post-881","post","type-post","status-publish","format-standard","hentry","category-linuxunix","category-servers"],"_links":{"self":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/881","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=881"}],"version-history":[{"count":0,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/881\/revisions"}],"wp:attachment":[{"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ndk.sytes.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}