{"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\/it\/blog\/administrirovanie\/spasenie-razdela-v-debian-kogda-poshlo-chto-to-ne-tak","title":{"rendered":"Ripristino di una sezione in Debian quando qualcosa va storto","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Buongiorno, cari <br \/>\nEra gioved\u00ec sera e uno dei nostri amministratori doveva eseguire un ridimensionamento del disco su una delle VM KVM. Sembrava un compito banale, ma potrebbe portare alla perdita di dati\u2026 E cos\u00ec\u2026 tutta la storia \u00e8 sotto il tag<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nCome ho gi\u00e0 detto, gioved\u00ec sera (non sembrava esserci pioggia), uno dei nostri amministratori ha deciso di eseguire un compito programmato da tempo e aumentare le dimensioni del FS all'interno della VM <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/vps\/abuzoustojchivye-vps\/\"   title=\"KVM\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4366\">KVM<\/a>.<\/p>\n<p>In anticipo avevo gi\u00e0 aumentato le dimensioni del disco da 14 GB a 60 GB e l'amministratore doveva solo aumentare le dimensioni del FS all'interno della macchina virtuale.<\/p>\n<p>Circa a mezzanotte, l'amministratore mi invia un messaggio in cui chiede se la partizione deve essere estesa o primaria... In risposta gli ho scritto di fare come era stato fatto in precedenza sulla VM. <\/p>\n<p>Il tempo passava\u2026 e l'amministratore mi manda un messaggio dicendo che ha ricevuto errori e che non riesce a estendere la partizione... e non si monta pi\u00f9... erano gi\u00e0 le 2 del mattino...<\/p>\n<p>Gli ho scritto di non fare nulla e di lasciare la VM in pace e io stesso sono andato a fare una copia dell'immagine del disco VM, chiamandola vmname_bad<\/p>\n<p>Era ulteriormente complicato dal fatto che l'amministratore non ha fatto snapshot e non ha copiato la partizione prima delle sue azioni... Avere queste informazioni avrebbe consentito di tornare indietro e provare ancora.<\/p>\n<p>La mattina seguente, con pensieri freschi, avvio la virtual machine con lo stesso sistema operativo (Debian 9) e collego il disco. Attraverso fdisk vedo che questo disco \u00e8 gi\u00e0 stato ampliato a 60GB e la partizione... che peraltro \u00e8 leggermente rovinata. <\/p>\n<p>Cerco di trovare la precedente partizione attraverso gli screenshot forniti dall'amministratore, ma ahim\u00e8, invano. Provo a trovare valori tramite fdisk, ma purtroppo tutti i tentativi sono falliti.<\/p>\n<p>Dal momento che fdisk non pu\u00f2 aiutarmi... chiamo in aiuto parted. Avviamo parted: cancello la vecchia partizione rm 2 e, conoscendo i valori approssimativi della partizione, faccio rescue \u2014 specifico il valore iniziale e quello finale, dove pu\u00f2 trovarsi la partizione. Dopo un breve attesa, parted trova la partizione e offre di inserire le informazioni nel sistema \u2014 ho accettato e sono uscito da parted.<\/p>\n<p>Monto la partizione \u2014 tutto OK. I file sono a posto, tutto bene, ma la dimensione \u00e8 ancora di 14GB. Smonto \/dev\/sdd1 e faccio resize2fs \/dev\/sdd1, poi e2fsck \/dev\/sdd1 e la monto di nuovo, vedo gi\u00e0 la partizione ampliata con tutti i file e tutto funziona perfettamente. <\/p>\n<p>Tutto \u00e8 andato bene sia per me che per l'amministratore.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/446252\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0431\u0440\u044b\u0439 \u0434\u0435\u043d\u044c, \u0443\u0432\u0430\u0436\u0430\u0435\u043c\u044b\u0435 \u0414\u0435\u043b\u043e \u0431\u044b\u043b\u043e \u0432\u0435\u0447\u0435\u0440\u043e\u043c \u0432 \u0447\u0435\u0442\u0432\u0435\u0440\u0433 \u0438 \u043e\u0434\u0438\u043d \u0438\u0437 \u043d\u0430\u0448\u0438\u0445 \u0430\u0434\u043c\u0438\u043d\u043e\u0432, \u0434\u043e\u043b\u0436\u0435\u043d \u0431\u044b\u043b \u0441\u0434\u0435\u043b\u0430\u0442\u044c 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