{"id":1553,"date":"2024-06-01T20:17:45","date_gmt":"2024-06-01T23:17:45","guid":{"rendered":"https:\/\/blog.galsoft.com.ar\/?p=1553"},"modified":"2024-06-01T20:20:07","modified_gmt":"2024-06-01T23:20:07","slug":"la-tabla-gpt-de-respaldo-esta-danada","status":"publish","type":"post","link":"https:\/\/blog.galsoft.com.ar\/?p=1553","title":{"rendered":"La tabla GPT de respaldo est\u00e1 da\u00f1ada"},"content":{"rendered":"

Al abrir gparted o al hacer un fdisk -l puede darse el caso de que te aparecezca el siguiente mensaje:<\/strong><\/p>\n

La tabla GPT de respaldo está dañada, pero la primera parece que está bien, así que esa será la que se utilice.<\/code><\/p>\n

Este es el mensaje completo al ejecutar fdisk -l<\/strong><\/p>\n

fdisk -l<\/code><\/h1>\n
\n

La tabla GPT de respaldo est\u00e1 da\u00f1ada, pero la primera parece que est\u00e1 bien, as\u00ed que esa ser\u00e1 la que se utilice.
Disco \/dev\/sda: 931,5 GiB, 1000204886016 bytes, 1953525168 sectores
Unidades: sectores de 1 * 512 = 512 bytes
Tama\u00f1o de sector (l\u00f3gico\/f\u00edsico): 512 bytes \/ 4096 bytes
Tama\u00f1o de E\/S (m\u00ednimo\/\u00f3ptimo): 4096 bytes \/ 4096 bytes
Tipo de etiqueta de disco: gpt
Identificador del disco: C9DC3ACE-F862-D741-BF55-B4A6EF375761<\/p>\n\n

Disposit. Comienzo Final Sectores Tama\u00f1o Tipo
\/dev\/sda1 2048 1050623 1048576 512M Datos b\u00e1sicos de Microsoft
\/dev\/sda2 1050624 1936955391 1935904768 923,1G Datos b\u00e1sicos de Microsoft
\/dev\/sda3 1936955392 1953523695 16568304 7,9G Linux swap<\/p>\n<\/blockquote>\n

La soluci\u00f3n es sencilla pero antes de entrar en faena, aconsejo hacer copia de seguridad de nuestros datos importantes para evitar sorpresas. Como se puede ver, en mi caso el disco que da el fallo es \/dev\/sda, as\u00ed que abrimos una terminal como root y escribimos:<\/strong><\/p>\n

gdisk \/dev\/sda<\/code><\/h1>\n
\n

GPT fdisk (gdisk) version 1.0.1<\/p>\n\n

Caution: invalid backup GPT header, but valid main header; regenerating
backup header from main header.<\/p>\n\n

Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: damaged<\/p>\n\n

****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************<\/p>\n\n

Command (? for help): p<\/p>\n<\/blockquote>\n

Pulsamos la tecla “p” y damos al enter.<\/strong><\/p>\n

\n

Disk \/dev\/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): C9DC3ACE-F862-D741-BF55-B4A6EF375761
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 3453 sectors (1.7 MiB)<\/p>\n\n

Number Start (sector) End (sector) Size Code Name
1 2048 1050623 512.0 MiB 0700
2 1050624 1936955391 923.1 GiB 0700
3 1936955392 1953523695 7.9 GiB 8200<\/p>\n\n

Command (? for help): w<\/p>\n<\/blockquote>\n

Pulsamos “W” y enter.<\/strong><\/p>\n

\n

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!<\/p>\n\n

Do you want to proceed? (Y\/N): y<\/p>\n<\/blockquote>\n

Y para terminar confirmamos escribiendo “y<\/strong>” y pulsando enter.<\/p>\n

\n

OK; writing new GUID partition table (GPT) to \/dev\/sda.
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot or after you
run partprobe(8) or kpartx(8)
The operation has completed successfully.<\/p>\n<\/blockquote>\n

Reiniciamos el equipo como avisa el mensaje anterior y ejecutamos de nuevo:<\/strong><\/p>\n

fdisk -l<\/code><\/h1>\n
\n

Disco \/dev\/sda: 931,5 GiB, 1000204886016 bytes, 1953525168 sectores
Unidades: sectores de 1 * 512 = 512 bytes
Tama\u00f1o de sector (l\u00f3gico\/f\u00edsico): 512 bytes \/ 4096 bytes
Tama\u00f1o de E\/S (m\u00ednimo\/\u00f3ptimo): 4096 bytes \/ 4096 bytes
Tipo de etiqueta de disco: gpt
Identificador del disco: C9DC3ACE-F862-D741-BF55-B4A6EF375761<\/p>\n\n

Disposit. Comienzo Final Sectores Tama\u00f1o Tipo
\/dev\/sda1 2048 1050623 1048576 512M Datos b\u00e1sicos de Microsoft
\/dev\/sda2 1050624 1936955391 1935904768 923,1G Datos b\u00e1sicos de Microsoft
\/dev\/sda3 1936955392 1953523695 16568304 7,9G Linux swap<\/p>\n<\/blockquote>\n

Y la advertencia desapareci\u00f3.<\/strong><\/p>\n

Fuente: https:\/\/librematica.es\/blogs\/tabla-gpt-respaldo-esta-danada-solucion<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Al abrir gparted o al hacer un fdisk -l puede darse el caso de que te aparecezca el siguiente mensaje: La tabla GPT de respaldo está dañada, pero la primera parece que está bien, así que esa será la que se utilice. Este es el mensaje completo al ejecutar fdisk -l fdisk -l La tabla […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[1,13],"tags":[],"class_list":["post-1553","post","type-post","status-publish","format-standard","hentry","category-linux","category-webs-utiles","entry"],"_links":{"self":[{"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=\/wp\/v2\/posts\/1553","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1553"}],"version-history":[{"count":3,"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=\/wp\/v2\/posts\/1553\/revisions"}],"predecessor-version":[{"id":1557,"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=\/wp\/v2\/posts\/1553\/revisions\/1557"}],"wp:attachment":[{"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.galsoft.com.ar\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}