You have been subscribed to a public bug by Marc Deslauriers (mdeslaur):
Binary package hint: util-linux
When the mounting of a network drive via cifs fails during while booting
(eg the server is unavailable or the computer cannot access the
network), Ubuntu gets stuck there with the options to Wait, Skip or do
it Manually. If you choose to do it manually the you get thrown to a
shell command with root privileges, without having to type a password or
anything.
Here's an example from my /etc/fstab:
//<server>/user /home/user/homedir cifs
exec,credentials=/etccifspw,iocharset=utf8,_netdev,noperm,file_mode=0777,dir_mode=0777
0 0
This is the problem that caused me to notice the bug (I changed the
hostname for <server>)
mount error: could not resolve address for <server>: Name or service not known
No ip address specified and hostname not found
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: mount 2.17.2-0ubuntu1.10.04.2
ProcVersionSignature: Ubuntu 2.6.32-30.59-generic 2.6.32.29+drm33.13
Uname: Linux 2.6.32-30-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Apr 7 15:55:35 2011
InstallationMedia: Ubuntu 10.04.2 LTS "Lucid Lynx" - Release amd64 (20110211.1)
ProcEnviron:
PATH=(custom, user)
LANG=en_GB.utf8
SHELL=/bin/bash
SourcePackage: util-linux
** Affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
--
Failure to mount network drive during boot may grant root access to shell
without password
https://bugs.launchpad.net/bugs/753677
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