Dnaite: dpkg: error: dpkg status database is locked by another process

Pagi ini saya ingin memasang Virtualbox yang saya unduh langsung dari websitenya.
Untuk memasang aplikasi Virtualbox ini saya menggunakan perintah dpkg

# dpkg -i virtualbox-4.3_4.3.2-90405~Debian~wheezy_amd64.deb

namun sayang, muncul eror

dpkg: error: dpkg status database is locked by another process

solusinya dengan perintah pkill berikut ini

# pkill dpkg

saya coba kembali

# dpkg -i virtualbox-4.3_4.3.2-90405~Debian~wheezy_amd64.deb
Selecting previously unselected package virtualbox-4.3.
(Reading database ... 90617 files and directories currently installed.)
Unpacking virtualbox-4.3 (from virtualbox-4.3_4.3.2-90405~Debian~wheezy_amd64.deb) ...
Setting up virtualbox-4.3 (4.3.2-90405~Debian~wheezy) ...
Adding group `vboxusers' (GID 117) ...
Done.
Starting VirtualBox kernel modules ...done.
Processing triggers for readahead-fedora ...
Processing triggers for shared-mime-info ...
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'
Unknown media type in type 'uri/mms'
Unknown media type in type 'uri/mmst'
Unknown media type in type 'uri/mmsu'
Unknown media type in type 'uri/pnm'
Unknown media type in type 'uri/rtspt'
Unknown media type in type 'uri/rtspu'
Processing triggers for hicolor-icon-theme ...

cukup mudah bukan :)
selamat mencoba.