FreeBSD 10.0-ALPHA2 发布，类UNIX操作系统

FreeBSD是类UNIX操作系统，它基于加州伯克利大学的“4.4BSD-Lite”发行并带有一些“4.4BSD-Lite2”增强，面向i386、amd64、IA-64、arm、MIPS、powerpc、ppc64、PC-98、UltraSPARC等平台。它还间接地基于“386BSD”，此乃William Jolitz对加州伯克利大学的“Net/2”往i386系统上的移植，尽管如今只有极少的代码保留下来。FreeBSD被全世界的公司、因特网服务提供商、科研人员、计算机专家、学生、家庭用户等用于他们的工作、教育、娱乐中。FreeBSD带有20000多个软件包，它们是预编译和打包好了、便于安装的软件，并覆盖了广阔的应用领域：服务器软件、数据库和网页服务器、桌面软件、游戏、网络浏览器和商务软件，而这一切都是免费和易于安装的。

Glen Barber has announced the availability of the second alpha release of FreeBSD 10, just days after the initial alpha build: " The second ALPHA build of the 10.0-RELEASE release cycle is now available on the FTP servers for the amd64, i386, ia64, powerpc, powerpc64 and sparc64 architectures. The 10.0-ALPHA2 builds are based on svn revision r255659 of the head/ branch. Important note to freebsd-update users: freebsd-update is not a supported upgrade path for the 10.0-ALPHA builds. Changes between -ALPHA1 and -ALPHA2 include: add -stdlib=libstdc++ to CXXFLAGS when building libstdc++ and libsupc++ with clang; fix an issue that caused Integrated RAID volumes on LSI mps(4) controllers to not get scanned on boot; fix a panic during pageout observed on some powerpc64 systems; import Hyper-V paravirtualized drivers from projects/hyperv branch...."
Here is the full release announcement.
Download links to the amd64 and i386 installation images:
FreeBSD-10.0-ALPHA2-amd64-disc1.iso (736MB, SHA256),
FreeBSD-10.0-ALPHA2-i386-disc1.iso (601MB, SHA256).