{"id":4029,"date":"2016-12-30T16:26:18","date_gmt":"2016-12-30T15:26:18","guid":{"rendered":"http:\/\/bitacora.eniac2000.com\/?p=4029"},"modified":"2016-12-30T16:26:18","modified_gmt":"2016-12-30T15:26:18","slug":"como-ampliar-un-disco-qcow2-de-una-maquina-virtual-kvm","status":"publish","type":"post","link":"https:\/\/bitacora.eniac2000.com\/?p=4029","title":{"rendered":"C\u00f3mo ampliar un disco qcow2 de una m\u00e1quina virtual KVM"},"content":{"rendered":"<p>En ocasiones es necesario realizar una ampliaci\u00f3n del espacio de disco de una m\u00e1quina virtual en entorno KVM. Esta receta de Luis Palacios (<a href=\"http:\/\/www.luispa.com\/archivos\/4218\" title=\"Ampliar disco qcow2\" target=\"_blank\">Ampliar disco qcow2<\/a>) es perfectamente funcional, y he podido comprobar que funciona a la perfecci\u00f3n para ampliar el disco de una m\u00e1quina virtual Windows 7:<\/p>\n<ul>\n<li><strong>Detener la m\u00e1quina virtual:<\/strong> $ sudo virsh shutdown &lt;nombre_maquina&gt;<\/li>\n<li><strong>Realizar un backup del disco qcow2:<\/strong> $ cp &lt;nombre_maquina&gt;.qcow2 &lt;nombre_maquina&gt;-BACKUP.qcow2<\/li>\n<li><strong>Convertir el fichero qcow2 a RAW:<\/strong> $ qemu-img convert &lt;nombre_maquina&gt;.qcow2 -O raw &lt;nombre_maquina&gt;.raw<\/li>\n<li><strong>Crear un archivo RAW vac\u00edo de 5GB (o del tama\u00f1o requerido):<\/strong> $ dd if=\/dev\/zero of=extra5GBzeros.raw bs=1024k count=5120<\/li>\n<li><strong>Crear un nuevo fichero RAW concatenando ambos ficheros:<\/strong> $ cat &lt;nombre_maquina&gt;.raw extra5GBzeros.raw > &lt;nombre_maquina&gt;-ampliado.raw<\/li>\n<li><strong>Convertir el nuevo fichero RAW a qcow2:<\/strong> $ qemu-img convert &lt;nombre_maquina&gt;-ampliado.raw -O qcow2 &lt;nombre_maquina&gt;.qcow2<\/li>\n<li><strong>Ampliar el disco en la m\u00e1quina virtual:<\/strong> Para ello, se ha de arrancar la m\u00e1quina y utilizar la aplicaci\u00f3n adecuada para ampliar el disco. En el caso de linux puede usarse <strong>gparted<\/strong>, y en el de Windows el Gestor de Vol\u00famenes de las Herramientas Administrativas.<\/li>\n<\/ul>\n<p>Posteriormente, se pueden eliminar los ficheros intermedios y el de la copia de seguridad.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En ocasiones es necesario realizar una ampliaci\u00f3n del espacio de<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[13],"tags":[744,910,1362,1383,1755],"series":[],"class_list":["post-4029","post","type-post","status-publish","format-standard","hentry","category-informatica","tag-gparted","tag-kvm","tag-qcow2","tag-raw","tag-virsh"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts\/4029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4029"}],"version-history":[{"count":0,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts\/4029\/revisions"}],"wp:attachment":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4029"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=4029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}