FreeBSD 10.0-ALPHA2 發布，類UNIX操作系統

FreeBSD是類UNIX操作系統，它基于加州伯克利大學的“4.4BSD-Lite”發行并帶有一些“4.4BSD-Lite2”增強，面向i386、amd64、IA-64、arm、MIPS、powerpc、ppc64、PC-98、UltraSPARC等平臺。它還間接地基于“386BSD”，此乃William Jolitz對加州伯克利大學的“Net/2”往i386系統上的移植，盡管如今只有極少的代碼保留下來。FreeBSD被全世界的公司、因特網服務提供商、科研人員、計算機專家、學生、家庭用戶等用于他們的工作、教育、娛樂中。FreeBSD帶有20000多個軟件包，它們是預編譯和打包好了、便于安裝的軟件，并覆蓋了廣闊的應用領域：服務器軟件、數據庫和網頁服務器、桌面軟件、游戲、網絡瀏覽器和商務軟件，而這一切都是免費和易于安裝的。

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).