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installArchives() failed: (Reading database ...
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(Reading database ... 189409 files and directories currently installed.)
Removing oracle-java7-installer ...
update-alternatives: error: unknown argument `cdrom'
dpkg: error processing oracle-java7-installer (--remove):
 subprocess installed pre-removal script returned error exit status 2
No apport report written because MaxReports is reached already
Downloading...
--2012-07-28 09:39:10--  http://download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.tar.gz
Resolving download.oracle.com (download.oracle.com)... 72.246.94.136, 72.246.94.127
Connecting to download.oracle.com (download.oracle.com)|72.246.94.136|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://edelivery.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.tar.gz [following]
--2012-07-28 09:39:10--  https://edelivery.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.tar.gz
Resolving edelivery.oracle.com (edelivery.oracle.com)... 72.246.234.174
Connecting to edelivery.oracle.com (edelivery.oracle.com)|72.246.234.174|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: http://download.oracle.com/errors/download-fail-1505220.html [following]
--2012-07-28 09:39:11--  http://download.oracle.com/errors/download-fail-1505220.html
Connecting to download.oracle.com (download.oracle.com)|72.246.94.136|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 5307 (5.2K) [text/html]
Saving to: `./jdk-7u3-linux-x64.tar.gz'

     0K .....                                                 100% 4.00M=0.001s

2012-07-28 09:39:11 (4.00 MB/s) - `./jdk-7u3-linux-x64.tar.gz' saved [5307/5307]

Download done.
sha256sum mismatch jdk-7u3-linux-x64.tar.gz
Oracle JDK 7 is NOT installed.
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 oracle-java7-installer
Error in function:
SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)