openSUSE 在官方源里加入了 VirtualBox 软件包，但是基于安全原因默认禁用了虚拟机的 USB 设备支持。开启 USB 支持的方法在官方文档有介绍。这里做个摘录。
文章分类：计算机
openSUSE 与 Windows 使用 Grub2 双启动
之前总结了关于 openSUSE 与 Windows 双系统的双重启动菜单的问题，但是现在看来并不太完善。现在根据最近折腾的经验重新总结一下。也就是在已有 Windows 的电脑上安装 openSUSE 版本 Linux 之后恢复启动菜单并设置为双启动的方法。使用的是早已成为 openSUSE 默认启动管理器的 Grub2。
openSUSE: unknown filesystem type ‘exfat’
插个 U 盘到电脑上，openSUSE 的文件管理器里居然一直不出现这个设备。试试命令行手工挂载，然后就提示“unknown filesystem type ‘exfat’”。Google 一通才发现是因为系统里没有默认安装 exfat 的处理程序。
Note about upgrading from openSUSE 13.2 to Tumbleweed
Last night I did an in-place upgrade for openSUSE from 13.2 to Tumbleweed following the guide here. When the upgrade finished, it required a reboot. The booting procedure halted after the splash screen (the box with three dots indicating start progress) and an error popped up saying Plasma (plasmashell) closed unexpectedly.
Cisco VPN on Windows 10
Cisco VPN client may not work on Windows 10 directly. After upgrading to Windows 10 threshold 2 (version 1511, build 10586), the system said the Cisco VPN client cannot run on it. So I reinstalled it according to the instruction on itservice.manchester.co.uk. It woks finally after some tweaks.