Ubuntu: How to recover dpkg from corrupted downloads?


I just upgraded to the 10.10 RC earlier and had a few problems with graphic drivers (x didnt start) But i have remedied that now. When i run 'sudo apt-get install -f' i get this:

will@UbuntuBox:/mnt/slax$ sudo apt-get install -f  [sudo] password for will:   Reading package lists... Done  Building dependency tree         Reading state information... Done  Correcting dependencies... Done  The following extra packages will be installed:    libmono-wcf3.0-cil openoffice.org-calc openoffice.org-core  The following NEW packages will be installed:    libmono-wcf3.0-cil  The following packages will be upgraded:    openoffice.org-calc openoffice.org-core  2 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.  16 not fully installed or removed.  Need to get 0B/32.5MB of archives.  After this operation, 1,929kB disk space will be freed.  Do you want to continue [Y/n]? Y  (Reading database ... 201565 files and directories currently installed.)  Preparing to replace openoffice.org-calc 1:3.2.1-6ubuntu2~10.04.1 (using .../openoffice.org-calc_1%3a3.2.1-7ubuntu1_i386.deb) ...  Unpacking replacement openoffice.org-calc ...  xz: (stdin): Compressed data is corrupt  dpkg-deb: subprocess <decompress> returned error exit status 1  dpkg: error processing /var/cache/apt/archives/openoffice.org-calc_1%3a3.2.1-7ubuntu1_i386.deb (--unpack):   short read on buffer copy for backend dpkg-deb during `./usr/lib/openoffice/basis3.2/program/libscfiltli.so'  dpkg: regarding .../openoffice.org-core_1%3a3.2.1-7ubuntu1_i386.deb containing openoffice.org-core:   openoffice.org-core conflicts with openoffice.org-calc (<< 1:3.2.1-7ubuntu1)    openoffice.org-calc (version 1:3.2.1-6ubuntu2~10.04.1) is present and installed.  dpkg: error processing /var/cache/apt/archives/openoffice.org-core_1%3a3.2.1-7ubuntu1_i386.deb (--unpack):   conflicting packages - not installing openoffice.org-core  Unpacking libmono-wcf3.0-cil (from .../libmono-wcf3.0-cil_2.6.7-3ubuntu1_all.deb) ...  dpkg-deb (subprocess): data: internal gzip read error: '<fd:0>: data error'  dpkg-deb: subprocess <decompress> returned error exit status 2  dpkg: error processing /var/cache/apt/archives/libmono-wcf3.0-cil_2.6.7-3ubuntu1_all.deb (--unpack):   subprocess dpkg-deb --fsys-tarfile returned error exit status 2  Errors were encountered while processing:   /var/cache/apt/archives/openoffice.org-calc_1%3a3.2.1-7ubuntu1_i386.deb   /var/cache/apt/archives/openoffice.org-core_1%3a3.2.1-7ubuntu1_i386.deb   /var/cache/apt/archives/libmono-wcf3.0-cil_2.6.7-3ubuntu1_all.deb  E: Sub-process /usr/bin/dpkg returned an error code (1)  

Any idea how i can get the broken packages fixed? Cheers, Will


This line is a clue:

xz: (stdin): Compressed data is corrupt  

Perhaps something happened to the .deb during transfer. Execute a sudo apt-get clean and then try again to force it to redownload the debs.

There are similar reports in Launchpad on these kind of errors for OpenOffice lately. This is likely a bug and should be reported as such.

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