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Boot problem after updates, Ubuntu, black screen and cursor

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Special Forums UNIX Desktop Questions & Answers Boot problem after updates, Ubuntu, black screen and cursor
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Old 01-16-2014
Boot problem after updates, Ubuntu, black screen and cursor
I hope this is the correct forum, please forgive a newbie. Hi all, New to linux, ubuntu, and this forum. I have enjoyed ubuntu for the past few months, but after my last update installation ubuntu would boot to a black screen and blinking cursor. If I let it sit for a while it would give the following: 12.3456789 sd 6:0:0:0 [sdb] assuming drive cache: write through .............................asking for cache data failed It would then repeat the lines above but the numbers would get higher. It would never boot. I tried a live backtrack and knoppix usbs, and when trying to access my ubuntu files I get: THIS DIRECTORY HAS BEEN UNMOUNTED TO PROTECT YOUR DATA. From the graphical desktop, click on: "Access Your Private Data" or From the command line, run: ecryptfs-mount-private --- Running the above in a terminal gave me this:ERROR: Encrypted private directory is not setup properly I would ideally want to solve this problem and boot back into ubuntu, but if not, I really want to get my files off the hard drive so I can save them before I wipe and reinstall(yes, I should have backed up) I have tried to edit the grub with nomodeset and rmmod the ums_realtek, and a few other things I have found with google. None have worked so far. Any suggestions on how to get my files back or even fix this? Thanks a million from a newbie.
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LEARN ABOUT DEBIAN

ubuntu-dev-tools

ubuntu-dev-tools(5)						File Formats Manual					       ubuntu-dev-tools(5)

NAME

       ubuntu-dev-tools - Configuration for the ubuntu-dev-tools package.

DESCRIPTION

       The  ubuntu-dev-tools  package  is  similar in scope to the devscripts(1) package, providing a collection of scripts which may be of use to
       Ubuntu and Debian developers or others wishing to build Debian packages.

       Some of these scripts have options which may be configured  on  a  system-wide  and  per-user  basis.   These  options  are  configured	in
       devscripts.conf(5).

       All variables are described in the script's manpages. Package-wide variables begin with "UBUNTUTOOLS" and are listed below.

       Every script which reads the configuration files can be forced to ignore them by using the --no-conf command-line option.

ENVIRONMENT

       All ubuntu-dev-tools configuration variables can be set (and overridden) by setting them in the environment (unlike devscripts).

       In addition, several scripts use the following environment variables:

       UBUMAIL
	      Overrides  DEBEMAIL  and	DEBFULLNAME  when  the	target	is  clearly  Ubuntu.   Can  either  contain an e-mail address or Full Name
	      <email@example.org>.

       DEBEMAIL, DEBFULLNAME
	      As in devscripts(1).

PACKAGE-WIDE VARIABLES
       The currently recognised package-wide variables are:

       UBUNTUTOOLS_BUILDER
	      This specifies the preferred test-builder, one of pbuilder (default), sbuild, pbuilder-dist.

       UBUNTUTOOLS_DEBIAN_MIRROR
	      The preferred Debian archive mirror.  Should be of the form http://ftp.debian.org/debian (no trailing slash).  If not specified, the
	      master will be used.

       UBUNTUTOOLS_DEBSEC_MIRROR
	      The  preferred Debian security archive mirror.  Should be of the form http://security.debian.org (no trailing slash).  If not speci-
	      fied, the master will be used.

       UBUNTUTOOLS_UBUNTU_MIRROR
	      The preferred Ubuntu archive mirror.  Should be of the form http://archive.ubuntu.com/ubuntu (no trailing slash).  If not specified,
	      the master will be used.

       UBUNTUTOOLS_UBUNTU_PORTS_MIRROR
	      The preferred Ubuntu archive mirror.  Should be of the form http://ports.ubuntu.com (no trailing slash).	If not specified, the mas-
	      ter will be used.

       UBUNTUTOOLS_LPINSTANCE
	      The launchpad instance to communicate with. e.g. production (default) or staging.

       UBUNTUTOOLS_MIRROR_FALLBACK
	      Whether or not to fall-back to the master archive mirror.  This is usually the desired behaviour, as mirrors can	lag  the  masters.
	      If on a private network with only a local mirror, you may want to set this to no.  One of yes (default) or no.

       UBUNTUTOOLS_UPDATE_BUILDER
	      Whether or not to update the test-builder before each test build.  One of yes or no (default).

       UBUNTUTOOLS_WORKDIR
	      The directory to use for preparing source packages etc.  When unset, defaults to a directory in /tmp/ named after the script.

SEE ALSO

       devscripts(1), devscripts.conf(5)

AUTHORS

       This manpage was written by Stefano Rivera <stefanor@ubuntu.com>.

ubuntu-dev-tools						 December 19 2010					       ubuntu-dev-tools(5)