{"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\/pl\/blog\/administrirovanie\/spasenie-razdela-v-debian-kogda-poshlo-chto-to-ne-tak","title":{"rendered":"Odzyskiwanie partycji w Debianie, gdy co\u015b posz\u0142o nie tak","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dzie\u0144 dobry, szanowni
\nTo wydarzy\u0142o si\u0119 w czwartek wieczorem, kiedy jeden z naszych administrator\u00f3w mia\u0142 dokona\u0107 zmiany rozmiaru dysku w jednej z maszyn wirtualnych KVM. Wydawa\u0142oby si\u0119 to zupe\u0142nie trywialne zadanie, ale mo\u017ce prowadzi\u0107 do ca\u0142kowitej utraty danych\u2026 A wi\u0119c\u2026 ca\u0142a historia ju\u017c za katem
\n<\/a><\/noindex>
\nJak ju\u017c wspomnia\u0142em \u2014 w czwartek wieczorem (z tego, co pami\u0119tam, nie pada\u0142 deszcz) jeden z naszych administrator\u00f3w postanowi\u0142 wykona\u0107 od dawna zaplanowane zadanie i zwi\u0119kszy\u0107 rozmiar systemu plik\u00f3w wewn\u0105trz maszyny wirtualnej. KVM<\/a>.<\/p>\n

Wcze\u015bniej zwi\u0119kszy\u0142em rozmiar samego dysku z 14 GB do 60 GB i administrator musia\u0142 tylko zwi\u0119kszy\u0107 rozmiar systemu plik\u00f3w wewn\u0105trz maszyny wirtualnej.<\/p>\n

Oko\u0142o p\u00f3\u0142nocy administrator wys\u0142a\u0142 wiadomo\u015b\u0107 \u2014 pyta\u0142, czy partycja powinna by\u0107 rozszerzona czy podstawowa\u2026 W odpowiedzi napisa\u0142em mu, \u017ce powinien post\u0105pi\u0107 tak, jak by\u0142o wcze\u015bniej w samej maszynie wirtualnej. <\/p>\n

Czas mija\u0142\u2026 a administrator przes\u0142a\u0142 informacj\u0119, \u017ce wyst\u0105pi\u0142y b\u0142\u0119dy, \u017ce rozszerzenie partycji nie powiod\u0142o si\u0119\u2026 i przesta\u0142a si\u0119 montowa\u0107\u2026 na zegarze ju\u017c by\u0142a 2 w nocy\u2026<\/p>\n

Napisa\u0142em mu, \u017ceby nic wi\u0119cej nie robi\u0142 i zostawi\u0142 maszyn\u0119 wirtualn\u0105 w spokoju, a sam poszed\u0142em zrobi\u0107 kopi\u0119 obrazu dysku VM \u2014 nazwa\u0142em j\u0105 vmname_bad<\/p>\n

Sytuacja by\u0142a jeszcze bardziej skomplikowana, poniewa\u017c administrator nie utworzy\u0142 zrzutu stanu i nie skopiowa\u0142 partycji przed swoimi dzia\u0142aniami\u2026 Gdybym mia\u0142 t\u0119 informacj\u0119, m\u00f3g\u0142bym cofn\u0105\u0107 si\u0119 w czasie i spr\u00f3bowa\u0107 jeszcze raz.<\/p>\n

Rano, z \u015bwie\u017cymi pomys\u0142ami, uruchamiam maszyn\u0119 wirtualn\u0105 z tym samym systemem operacyjnym (Debian 9) i pod\u0142\u0105czam dysk. Przez fdisk widz\u0119 ten dysk ju\u017c rozszerzony do 60 GB i partycj\u0119\u2026 kt\u00f3ra w zasadzie jest troch\u0119 uszkodzona. <\/p>\n

Pr\u00f3buj\u0119 na podstawie zrzut\u00f3w ekranu, kt\u00f3re dostarczy\u0142 administrator \u2014 znale\u017a\u0107 poprzedni\u0105 partycj\u0119, ale na pr\u00f3\u017cno. Pr\u00f3buj\u0119 przez fdisk dobra\u0107 warto\u015bci, ale niestety wszystkie pr\u00f3by zako\u0144czy\u0142y si\u0119 niepowodzeniem.<\/p>\n

Skoro fdisk nie mo\u017ce mi pom\u00f3c\u2026 si\u0119gam po parted. Uruchamiam parted \u2014 usuwam star\u0105 partycj\u0119 rm 2 i znaj\u0105c przybli\u017cone warto\u015bci podzia\u0142u wykonuj\u0119 rescue \u2014 podaj\u0119 warto\u015b\u0107 pocz\u0105tkow\u0105 i ko\u0144cow\u0105, gdzie mo\u017ce znajdowa\u0107 si\u0119 partycja. Chwilowe oczekiwanie i parted znajduje partycj\u0119 i proponuje wprowadzenie jej informacji do systemu \u2014 zgodzi\u0142em si\u0119 i wyszed\u0142em z parted.<\/p>\n

Montuj\u0119 partycj\u0119 \u2014 wszystko w porz\u0105dku. Pliki na miejscu, wszystko dobrze, ale rozmiar wci\u0105\u017c stary 14 GB. Odmontowa\u0142em \/dev\/sdd1 i wykonuj\u0119 resize2fs \/dev\/sdd1, nast\u0119pnie e2fsck \/dev\/sdd1 i ponownie montuj\u0119, a ju\u017c widz\u0119 rozszerzon\u0105 partycj\u0119 ze wszystkimi plikami i jest ca\u0142kiem \u017cywa. <\/p>\n

Wszystko sko\u0144czy\u0142o si\u0119 dobrze zar\u00f3wno dla mnie, jak i dla administratora.
\n
\u0179r\u00f3d\u0142o: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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