{"id":30690,"date":"2019-10-31T21:36:54","date_gmt":"2019-10-31T18:36:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/spasenie-razdela-v-debian-kogda-poshlo-chto-to-ne-tak\/"},"modified":"2019-10-31T21:36:54","modified_gmt":"2019-10-31T18:36:54","slug":"spasenie-razdela-v-debian-kogda-poshlo-chto-to-ne-tak","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/administrirovanie\/spasenie-razdela-v-debian-kogda-poshlo-chto-to-ne-tak","title":{"rendered":"\u00c5terst\u00e4llning av en partition i Debian n\u00e4r n\u00e5got g\u00e5r fel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

God dag, k\u00e4ra
\nDet var en torsdag kv\u00e4ll, och en av v\u00e5ra administrat\u00f6rer skulle g\u00f6ra en \u00e4ndring av diskstorleken p\u00e5 en av KVM-virtuella maskiner. Det verkar vara en ganska trivial uppgift, men det kan leda till dataf\u00f6rlust helt och h\u00e5llet\u2026 S\u00e5, hela historien finns under kat.
\n<\/a><\/noindex>
\nSom jag redan sade \u2014 p\u00e5 torsdag kv\u00e4ll (det verkade som att det inte regnade) beslutade en av v\u00e5ra administrat\u00f6rer att utf\u00f6ra en l\u00e4nge planerad uppgift och \u00f6ka storleken p\u00e5 filsystemet inuti den virtuella maskinen. KVM<\/a>.<\/p>\n

Jag hade prelimin\u00e4rt redan \u00f6kat storleken p\u00e5 sj\u00e4lva disken fr\u00e5n 14 GB till 60 GB, och administrat\u00f6ren beh\u00f6vde bara \u00f6ka storleken p\u00e5 filsystemet inom den virtuella maskinen.<\/p>\n

Ungef\u00e4r klockan 12 p\u00e5 natten skickar administrat\u00f6ren ett meddelande d\u00e4r han fr\u00e5gar om partitionen ska vara ut\u00f6kad eller prim\u00e4r\u2026 I svaret skrev jag till honom att han borde g\u00f6ra det som det var tidigare p\u00e5 sj\u00e4lva virtuella maskinen. <\/p>\n

Tiden gick\u2026 och administrat\u00f6ren meddelar att han fick felmeddelanden och att det inte g\u00e5r att ut\u00f6ka partitionen\u2026 och den slutade montera\u2026 klockan visade redan 2 p\u00e5 natten\u2026<\/p>\n

Jag skrev till honom att han inte skulle g\u00f6ra n\u00e5got mer och att han borde l\u00e4mna den virtuella maskinen ifred, och sedan b\u00f6rjade jag skapa en kopia av diskavbilden VM \u2014 kallade vmname_bad.<\/p>\n

Det f\u00f6rsv\u00e5rades \u00e4nnu mer av att administrat\u00f6ren inte hade skapat n\u00e5gon snapshot och inte kopierat partitioneringen innan sina \u00e5tg\u00e4rder\u2026 Med denna information skulle det ha varit m\u00f6jligt att \u00e5terg\u00e5 tillbaka och f\u00f6rs\u00f6ka igen.<\/p>\n

P\u00e5 morgonen, med fr\u00e4scha tankar startar jag en virtuell maskin med samma OS (Debian 9) och ansluter disken. Genom fdisk ser jag att disken redan har ut\u00f6kats till 60 GB och partitionen\u2026 som faktiskt \u00e4r lite skadad. <\/p>\n

Jag f\u00f6rs\u00f6ker utifr\u00e5n sk\u00e4rmdumparna som administrat\u00f6ren tillhandah\u00f6ll \u2014 att hitta den tidigare partitioneringen, men tyv\u00e4rr utan framg\u00e5ng. Jag f\u00f6rs\u00f6ker med fdisk f\u00f6r att f\u00e5 fram v\u00e4rden, men tyv\u00e4rr misslyckas alla f\u00f6rs\u00f6k.<\/p>\n

Eftersom fdisk inte kan hj\u00e4lpa mig\u2026 kallar jag in parted. Jag startar parted \u2014 jag tar bort den gamla partitionen rm 2 och med hj\u00e4lp av de ungef\u00e4rliga v\u00e4rdena f\u00f6r partitioneringen g\u00f6r jag en rescue \u2014 anger ett startv\u00e4rde och ett slutv\u00e4rde d\u00e4r partitionen kan befinna sig. Efter en kort v\u00e4ntan hittar parted partitionen och f\u00f6resl\u00e5r att registrera den i systemet \u2014 Jag gick med p\u00e5 det och avslutade parted.<\/p>\n

Jag monterar partitionen \u2014 allt OK. Filena \u00e4r p\u00e5 plats, allt ser bra ut, men storleken \u00e4r fortfarande den gamla 14 GB. Jag avmonterar \/dev\/sdd1 och k\u00f6r resize2fs \/dev\/sdd1, sedan e2fsck \/dev\/sdd1 och monterar igen och ser nu den ut\u00f6kade partitionen med alla filer och fullt fungerande. <\/p>\n

Allt slutade v\u00e4l b\u00e5de f\u00f6r mig och f\u00f6r administrat\u00f6ren.
\n
K\u00e4lla: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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