{"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\/cs\/blog\/administrirovanie\/spasenie-razdela-v-debian-kogda-poshlo-chto-to-ne-tak","title":{"rendered":"Z\u00e1chrana odd\u00edlu v Debianu, kdy\u017e n\u011bco ne\u0161lo podle pl\u00e1nu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dobr\u00fd den, v\u00e1\u017een\u00ed
\nBylo \u010dtvrtek ve\u010der a jeden z na\u0161ich administr\u00e1tor\u016f m\u011bl prov\u00e9st zv\u011bt\u0161en\u00ed velikosti disku na jednom z virtu\u00e1ln\u00edch KVM stroj\u016f. Zd\u00e1lo by se, \u017ee je to zcela trivi\u00e1ln\u00ed \u00fakol, ale m\u016f\u017ee to v\u00e9st k celkov\u00e9 ztr\u00e1t\u011b dat... A tak... cel\u00e1 historie je pod katem
\n<\/a><\/noindex>
\nJak jsem ji\u017e zm\u00ednil \u2014 ve \u010dtvrtek ve\u010der (d\u00e9\u0161\u0165 jaksi nebyl) se jeden z na\u0161ich administr\u00e1tor\u016f rozhodl splnit dlouho odlo\u017een\u00fd \u00fakol a zv\u011bt\u0161it velikost FS uvnit\u0159 virtu\u00e1ln\u00edho stroje KVM<\/a>.<\/p>\n

P\u0159edem jsem ji\u017e zv\u00fd\u0161il velikost samotn\u00e9ho disku z 14 GB na 60 GB a administr\u00e1tor pot\u0159eboval jen zv\u011bt\u0161it velikost FS uvnit\u0159 virtu\u00e1ln\u00edho stroje.<\/p>\n

Kolem 12. hodiny admin pos\u00edl\u00e1 zpr\u00e1vu \u2014 pt\u00e1 se, zda by m\u011bl b\u00fdt odd\u00edl roz\u0161\u00ed\u0159en\u00fd nebo prim\u00e1rn\u00ed... Odpov\u011bd\u011bl jsem mu, \u017ee to mus\u00ed ud\u011blat tak, jak to bylo p\u0159edt\u00edm na samotn\u00e9m virtu\u00e1ln\u00edm stroji. <\/p>\n

\u010cas plynul... a admin pos\u00edl\u00e1, \u017ee se mu objevily chyby, \u017ee se neda\u0159\u00ed roz\u0161\u00ed\u0159it odd\u00edl... a p\u0159estal se montovat... na hodin\u00e1ch u\u017e bylo 2 hodiny r\u00e1no...<\/p>\n

Napsal jsem mu, aby u\u017e nic ned\u011blal a nechal virtu\u00e1ln\u00ed stroj na pokoji, a s\u00e1m jsem \u0161el vytvo\u0159it kopii obrazu disku VM \u2014 pojmenoval jsem ji vmname_bad<\/p>\n

V\u0161e se je\u0161t\u011b zt\u011b\u017eovalo t\u00edm, \u017ee admin \u2014 neud\u011blal snapshot a nekop\u00edroval rozlo\u017een\u00ed p\u0159ed sv\u00fdmi akcemi... M\u00edt tyto informace by umo\u017enilo vr\u00e1tit se zp\u011bt a zkusit to znovu.<\/p>\n

Dopoledne, s \u010derstv\u00fdmi my\u0161lenkami, spou\u0161t\u00edm virtu\u00e1ln\u00ed stroj se stejn\u00fdm OS (Debian 9) a p\u0159ipojuji disk. P\u0159es fdisk vid\u00edm tento disk ji\u017e roz\u0161\u00ed\u0159en\u00fd na 60 GB a odd\u00edl... kter\u00fd je vlastn\u011b trochu po\u0161kozen\u00fd. <\/p>\n

Sna\u017e\u00edm se podle screenshot\u016f, kter\u00e9 poskytl admin \u2014 naj\u00edt p\u0159edchoz\u00ed rozlo\u017een\u00ed, ale bohu\u017eel bez \u00fasp\u011bchu. Sna\u017e\u00edm se p\u0159es fdisk naj\u00edt hodnoty, ale v\u0161echny pokusy jsou ne\u00fasp\u011b\u0161n\u00e9.<\/p>\n

Proto\u017ee mi fdisk nem\u016f\u017ee pomoci... vol\u00e1m na pomoc parted. Spou\u0161t\u00edm parted \u2014 ma\u017eu star\u00fd odd\u00edl rm 2 a v\u011bdoma si p\u0159ibli\u017en\u00fdch hodnot rozd\u011blen\u00ed d\u011bl\u00e1m rescue \u2014 ud\u00e1v\u00e1m po\u010d\u00e1te\u010dn\u00ed a kone\u010dn\u00e9 hodnoty, kde m\u016f\u017ee b\u00fdt odd\u00edl. Minutov\u00e9 \u010dek\u00e1n\u00ed a parted najde odd\u00edl a navrhuje zav\u00e9st o n\u011bm informace do syst\u00e9mu \u2014 souhlasil jsem a vy\u0161el z parted.<\/p>\n

P\u0159ipojuji odd\u00edl \u2014 v\u0161echno OK. Soubor je na m\u00edst\u011b, v\u0161e je dobr\u00e9, ale velikost je je\u0161t\u011b star\u00e1 14 GB. Odpojil jsem \/dev\/sdd1 a d\u011bl\u00e1m resize2fs \/dev\/sdd1, pot\u00e9 e2fsck \/dev\/sdd1 a znovu montuji a vid\u00edm ji\u017e roz\u0161\u00ed\u0159en\u00fd odd\u00edl se v\u0161emi soubory a zcela \u017eiv\u00fd. <\/p>\n

V\u0161echno skon\u010dilo dob\u0159e jak pro m\u011b, tak pro administr\u00e1tora.
\n
Zdroj: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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