pacman拒绝升级我的Arch Linux系统,因为开放vm工具模块和linux内核包之间存在冲突:
$ sudo pacman -Syu
:: Synchronizing package databases...
core is up to date
extra is up to date
community 1988.4 KiB 970K/s 00:02 [#############################################################################] 100%
multilib is up to date
:: Sta
嗨,我一直在努力寻找解决这个问题的方法,但我找不到。我需要安装模块'IO::EventMux',所以我使用:
cpan[1]> install IO::EventMux
然而,我得到了以下错误:
Catching error: "CPAN::Exception::yaml_process_error=HASH(0xe34ed78)" at /usr/local/share/perl/5.14.2/CPAN.pm line 392
CPAN::shell() called at /usr/local/share/perl/5.14.2/App/Cpa
我有戴尔inspiron n5110笔记本电脑安装了windows 7和ubuntu14.04。摄像头可以很好的在窗口工作。但在乌本图,奶酪显示“没有发现任何装置”。这是我的lsusb输出:
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus
我试图在Ubuntu18.04上安装python 多边形模块。我只是用:-
pip install Polygon2
但我会犯这样的错误:-
cajarename 17.3.28 requires caja, which is not installed.
cajarename 17.3.28 requires gir1.2-gtk-3.0, which is not installed.
cajarename 17.3.28 requires python-caja, which is not installed.
cajarename 17.3.28 requires python-gi,
我正在编写一个Linux char驱动程序,我想在驱动程序关闭时释放一个信号量。问题是,我不能确定用户是否已经获取了信号量。执行此操作的适当方式是什么?
/* Not my code, but demonstrates the problem I face */
if (userland_var)
down(&my_sem);
/* ... */
/* Okay, now I want to release this semaphore, if held,
but I don't know the value of userland_var */
/* OPTI
即使我是以root身份登录的,下面是我在执行升级时遇到的冲突:
root@:/home/frederic# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
3 not fully installed or removed.
After thi