To set the default application for a specific file type, locate a file of that type in the file manager, right-click it, and select Properties.
Click the Open With tab and select the application you want to use for that file type. Use the Set as default button to make the application the default application.
Martin Wimpress and Rohith Madhavan have made an Ubuntu MATE image for the Raspberry Pi 2 and Raspberry Pi 3 which you can download or build yourself.
The image is based on the regular Ubuntu armhf base, not the new Snappy Core, which means that the installation procedure for applications is the same as that for the regular desktop version, ie using apt-get. However, since Ubuntu MATE 16.04 snap packages can be installed alongside classic deb packages. Continue reading Ubuntu MATE for the Raspberry Pi 2 and Raspberry Pi 3
Here are some few tricks to use Cairo-Dock efficiently within Unity.
Continue reading tricks to use Cairo-Dock
Here is an easy way to use Cairo-Dock as a shell, instead of Unity on Ubuntu Oneiric (11.10) and newer.
It will remove the top panel and the left bar. Continue reading Replace Unity with Cairo-Dock
按下 Ctrl + Alt + t 键盘组合键调出终端，在终端中输入以下命令：
gsettings set com.canonical.Unity.Launcher launcher-position Bottom
按下回车。 Continue reading 移动 Ubuntu16.04 桌面左侧的启动器到屏幕底部
filesystem check system disk OK.disable the addtional disk in /etc/fstab using #
login the system run fsck /dev/sda3, fix the problem manually
Information about TPM https://wiki.archlinux.org/index.php/TPM
If you not need TPM, just
echo blacklist tpm_tis > /etc/modprobe.d/tpm_tis.conf (need root)
It worked on my computer. The error gone. Continue reading tpm_tis: A TPM error (6) occurred attempting to read a pcr value
解决方案：
首需要切换到root身份
$su –
(注意有- ，这和su是不同的，在用命令”su”的时候只是切换到root，但没有把root的环境变量传过去，还是当前用户的环境变量，用”su -“命令将环境变量也一起带过去，就象和root登录一样) Continue reading Fedora is not in the sudoers file
smbd: relocation error: /lib/libsamba-credentials.so.0: symbol GSS_KRB5_CRED_NO_CI_FLAGS_X, version gssapi_krb5_2_MIT not defined in file libgssapi_krb5.so.2 with link time reference
Package krb5-libs-1.13.2-11.fc23.i686 is already installed
should update krb5-libs-1.13.2 to krb5-libs-1.14.1
so: sudo dnf install krb5-libs-1.14.1-*
other words, security should be set as share
or smbd would not start properly (error exit)
DONE