Hoy traigo un mini-tutorial de c\u00f3mo hacer im\u00e1genes comprimidas de memorias externas (SD, USB…) en Linux.
\nPara crear las im\u00e1genes:<\/p>\n
dd if=\/dev\/sdX | gzip -9 > \/ruta\/a\/backup.img.gz<\/p><\/blockquote>\n
…siendo sdX el dispositivo a clonar.<\/p>\n
Para restaurar las im\u00e1genes:<\/p>\n
gzip -dc ruta\/a\/backup.img.gz | dd of=\/dev\/sdX<\/p><\/blockquote>\n
…siendo iguamente sdX donde restaurar la imagen.<\/p>\n
Pero si queremos ser creativos<\/em>, podemos hacer esto mismo, enviado las im\u00e1genes a un tercer servidor:<\/p>\n
dd bs=1M if=\/dev\/sdX | ssh user@host ‘gzip -9 > \/ruta_remota\/a\/backup.img.gz’<\/p><\/blockquote>\n
…algo sumamente \u00fatil si, por ejemplo, estamos haciendo diabluras con una Raspberry Pi y contamos -obviamente- con poco espacio en el sistema local.<\/p>\n","protected":false},"excerpt":{"rendered":"
Hoy traigo un mini-tutorial de c\u00f3mo hacer im\u00e1genes comprimidas 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":[190,515,986,1381,1508,1685],"series":[],"class_list":["post-3383","post","type-post","status-publish","format-standard","hentry","category-informatica","tag-backup","tag-dd","tag-linux","tag-raspberry-pi","tag-sd","tag-usb"],"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\/3383","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=3383"}],"version-history":[{"count":0,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=\/wp\/v2\/posts\/3383\/revisions"}],"wp:attachment":[{"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3383"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/bitacora.eniac2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=3383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}