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2018-10-19 | [10,685]

Ubuntu 18.10/18.04 LTS

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UbuntuUbuntu是一个以桌面应用为主的GNU/Linux操作系统,基于Debian发行版和GNOME桌面环境,与Debian的不同在于它每6个月会发布一个新版本。

普通的桌面应用版可以获得18个月的支持,标为LTS的桌面应用版可以获得更长时间的支持。其桌面应用系列可以获得为期三年的技术支持,服务器版可以获得为期五年的技术支持。Ubuntu的目标在于为一般用户提供一个最新的、同时又相当稳定的主要由自由软件构建而成的操作系统。Ubuntu具有庞大的社区力量,用户可以方便地从社区获得帮助。

这一代最大的特色是全面导入名为Unity的新界面,这也是先前使用在Netbook Remix版本上的界面,相较过去的界面号称更为美观且简单易用。而Ubunty也会针对使用者的显示适配器进行判断,若是安装者的显示适配器性能不足,也会自动改为传统界面,当然看不惯Unity界面,也可以手动选择传统界面。

London, UK, 18th October 2018; Canonical today announced the release of Ubuntu 18.10, focused on multi-cloud deployments, AI software development, a new community desktop theme and richer snap desktop integration.

“Ubuntu is now the world’s reference platform for AI engineering and analytics” said Mark Shuttleworth, CEO of Canonical. “We accelerate developer productivity and help enterprises operate at speed and at scale, across multiple clouds and diverse edge appliances.”

This year, the financial services industry has engaged significantly with Canonical and Ubuntu for infrastructure efficiency on-premise and to accelerate their move to the cloud. The push for machine learning analytics and of fintech efforts around blockchain, distributed ledger applications and cryptocurrencies are current drivers of Ubuntu investments and deployments.

Optimised for multi-cloud computing

Ubuntu Server 18.10 images are available on all major public clouds, including minimal images popular for container workloads with a small footprint and fast boot time. For private clouds, Ubuntu 18.10 ships with OpenStack Rocky for AI and NFV hardware acceleration and Ceph Mimic to reduce storage overhead. Ubuntu Server 18.10 includes the latest Kubernetes version 1.12 which brings increased security and scalability by automating the provisioning of clusters with transport layer encryption and is more responsive to dynamic workloads through faster scaling.

Snap momentum strengthens

Ubuntu’s secure Linux app store sports 4,100 snaps published by 1,700 developers and supported across 41 Linux distributions. Official desktop snaps from Spotify, Plex and Skype are popular, and major public cloud and server applications are now available including Google Cloud SDK, AWS CLI and Azure CLI. The new release enables native desktop controls to access files on the host system.

Improved gaming performance

The Linux 4.18 kernel together with updates in Mesa and X.org significantly improve game performance. Graphics support expands to AMD VegaM in the latest Intel Kabylake-G CPUs, Raspberry Pi 3 Model B, B+ and Qualcomm Snapdragon 845.

Ubuntu 18.10 introduces the GNOME 3.30 desktop and Yaru, the new community-developed default theme. Fingerprint unlock functionality is featured for compatible PCs and the latest versions of Firefox, LibreOffice, and Chromium are included.

Ubuntu 18.10

Ubuntu 18.04.01 LTS

desktop是Live CD的名字,也就是刻录在光盘上运行的Linux。是一套已经装好的系统。把它烧录到光盘上放进光驱就可以直接运行这套完整的linux。当然你也可以在运行之后把它“安装”到硬盘上,而这样的安装更像是一种拷贝或者还原,类似ghost。

真正意义上正统的安装版本则是alternate,它是由许多deb包组成的。可以详细的制定安装内容。是正宗的硬盘安装般。

这两个版本还有一些速度上的区别。因为类似系统还原,desktop的安装速度较快。而alternate正式的安装相比之下会慢一些。

而运行的时候恰好相反:desktop因为是既成的,可能会缺少对应软件环境的适应性,所以和灵活指定及安装的 alternate 相比会慢一些。DesktopCD 安装前可以看到基本界面和试用(LiveCD功能),Alternate 面向安装个性化需求更大的更专业一点点的用户。

Desktop和Alternate都有基本的软件包,要更多的软件包只要修改合适的源下载也是很快的。Desktop是一个Live CD,只用于桌面系统,也可以在LiveCD状态下安装;
Alternate 是标准的安装CD,包含了一些桌面程序,可以用高级安装模式安装,在安装时可以划分分区。也可以当作Server来用,不过一些Server 程序要自己通过网络来安装。Alternate安装过程会有高级分区以及grub安装选项,Desktop没有。alternate既能安装desktop 也能安装server。

desktop是一个live cd在桌面环境里面 以向导的方式引导安装live CD 就是把安装好的软件放到光盘中,安装时就把其上的内容复制到硬盘再简单配置就行了。

 

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