Ubuntu Serveur_ Perte Mot de Passe Root – Memo-linux

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5 (https://memo-linux.com/ubuntu-server-perte-mot-de-passe-root/#comments)Ubuntu serveur: Pertemot de passe rootPosted on 26/08/2013(https://memo-linux.com/ubuntu-server-perte-mot-de-passe-root/)by fred (https://memo-linux.com/author/fred/)

Mise jour de larticle!

voici une astuce qui permet de redfinir le mot de passe perdu pour le compte root.

Ancienne mthode

(date du 29/06/2011)

A linvite de grub (dbut du dmarrage linux) appuyer sur la touche e

Slectionner la deuxime ligne commenant par kernel /vmlinuz-2.6. et appuyer sur la touche e

remplacer ro splash quiet par rw init=/bin/bash puis appuyer sur entrer (attention le clavier est en QWERTY )

Appuyez sur la touche b afin de booter em mode single user

A linvite de commande vous pouvez changer le mot de passe root avec la commande passwd

Mthode partir dUbuntu 12.04Lts

Au menu du Grub: choisir Mode de dpanage

(https://memo-linux.com/wp-content/uploads/2011/06/ubuntu-root-mdp.png)

Au menu de rcupration, choisir: root

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subject=U

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eyes of network: solution complte de supervision

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rpondre (ht tps: / /memo-l inux.com/ubuntu-server-perte-mot-de-passe-root/?replytocom=8373#respond)

(https://memo-linux.com/wp-content/uploads/2011/06/ubuntu-root-mdp2.png)

Une fois arriver au shell, saisir les commandes suivantes:

Remonter la partition en lecture et criture:

Changement du mot de passe root:

En image:

(https://memo-linux.com/wp-content/uploads/2011/06/ubuntu-root-mdp3.png)

A ce stade, si le compte root na pas t dfinie il est aussi possible dajouter un utilisateur:

Une fois le mot de passe redfinie, reboot de la machine:

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fred

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Punk'Hard'Blues'n'Rollet me dplace tous les jours avec mon fidle destrier : ZRX1100 (https://memo-linux.com/kawasaki-1100-zrx/).

5 comments

08/09/2014 (https://memo-linux.com/ubuntu-server-perte-mot-de-passe-

root/comment-page-1/#comment-8373)

swaegers

fonctionne la seule condition quil ny ai pas un mot de passe pour le dmarrage du BIOS

mountrw o remount /

passwdroot

adduser fred

reboot
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nicolas sourdet (http://memo-linux.com)

bonjour j ai un probleme de mot de passe root avec linux mais le probleme c est que l invit de grub n est pas pareil que vous comment faire merci??



fred (http://memo-linux.com)

Bonjour Nicolas,

as-tu un un screenshot de ton bios et quel est sa version ?



elie

je possde ubuntu 12.04. jai excut ceci plusieurs fois. A chaque fois a ne reconnat pas le mot de passe entr. Que faire?



otman

Bonjour,

Je fais la mme manip mais quand je choisis Root, jarrive sur une demande dentrer un mot de passe Root ou de faire ctrl D pour continuer. Je narrive pas pas au shell. Merci

de votre aide

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Ubuntu Serveur_ Perte Mot de Passe Root – Memo-linux

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