我可以在 systemd 上找到 sntp for trusty。
我需要运行一个调用sntp -s server1 server2.
什么可以在 16.04 上为我做同样的事情？
按照1404_HWE_EOL和LTSEnablementStack的说明，我无法升级我的图形堆栈。我当前的 HWE 堆栈在第四个时已经过时了，所以出于安全原因我想升级。
/etc/apt/sources.list：
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ trusty main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ trusty universe
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty universe
deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty multiverse
deb http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu trusty-security main restricted
deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted
deb http://security.ubuntu.com/ubuntu trusty-security universe
deb-src http://security.ubuntu.com/ubuntu trusty-security universe
deb http://security.ubuntu.com/ubuntu trusty-security multiverse
deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu trusty partner
# deb-src http://archive.canonical.com/ubuntu trusty partner
## Uncomment the following two lines to add software from Ubuntu's
## 'extras' repository.
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu trusty main
deb-src http://extras.ubuntu.com/ubuntu trusty main
当我尝试运行升级命令时，会发生以下情况：
$ sudo apt-get install --install-recommends linux-generic-lts-xenial xserver-xorg-core-lts-xenial xserver-xorg-lts-xenial xserver-xorg-video-all-lts-xenial xserver-xorg-input-all-lts-xenial libwayland-egl1-mesa-lts-xenial
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libwayland-egl1-mesa-lts-xenial : Depends: libegl1-mesa-lts-xenial (= 11.2.0-1ubuntu2~trusty1) but it is not going to be installed
xserver-xorg-lts-xenial : Recommends: libgl1-mesa-dri-lts-xenial but it is not going to be installed
Recommends: libgl1-mesa-glx-lts-xenial but it is not going to be installed
Recommends: libegl1-mesa-lts-xenial but it is not going to be installed
Recommends: libgles2-mesa-lts-xenial but it is not going to be installed
Recommends: libgles1-mesa-lts-xenial but it is not going to be installed
Conflicts: libegl1-mesa (>= 0~)
Conflicts: libgl1-mesa-dri (>= 0~)
Conflicts: libgl1-mesa-dri:i386 (>= 0~)
Conflicts: libgl1-mesa-glx (>= 0~)
Conflicts: libgl1-mesa-glx:i386 (>= 0~)
Conflicts: libglapi-mesa (>= 0~)
Conflicts: libglapi-mesa:i386 (>= 0~)
Conflicts: libgles2-mesa (>= 0~)
E: Unable to correct problems, you have held broken packages.
如何将我的机器升级到最新的 HWE 图形堆栈？
我正在运行 Ubuntu 10.04，我遇到了一些奇怪的问题，有时 Emerald 无法启动，这让我有“无铬”窗口。当然，我可以从 emerald 开始emerald --replace > /dev/null 2>&1 & \ disown $!，但无论如何确保它开始会非常好。
目前，我相信，emerald 是由 compiz 启动的，因为我使用 CompizConfig Settings Manager 将 Emerald 设置为我的装饰器：
有没有更好的方法来做到这一点，以便我们可以确保它每次都启动？
似乎无法从 GRUB 以恢复模式启动到 root shell。我尝试从 GRUB 菜单启动到恢复模式，但从来没有得到 shell，只记录内核启动的消息。Ctrl+ Alt+ F1-F12也不要给我任何重要的东西。