= 2010-07-20 =

 * [專案] '''[wiki:jazz/ClassCloud_LiveCD#a2010-07-20 ClassCloud Live CD : 基於 DRBL 的雲端教學環境] '''
   * [http://sourceforge.net/projects/drbl-hadoop/files/0.1.0/hadoop-live-xfce-0.1.0.iso/download 釋出 DRBL-Hadoop Live CD 0.1.0 版本] - 待加入預設啟動 hadoop 的 script

 * [備忘] [http://cm-life.blogspot.com/2007/03/runlevel.html 如何查詢目前的 runlevel] - 指令 runlevel
{{{
# runlevel
}}}

== VirtualBox ==

 * [備忘] 在 Windows 平台上，讓 VirtualBox 直接使用實體硬碟(Physical Disk)的做法
   * [參考] [http://www.sysprobs.com/access-physical-disk-virtualbox-desktop-virtualization-software Access Physical Disk in VirtualBox- Desktop Virtualization Software]
{{{
D:\>set PATH=%PATH%;"C:\Program Files\Oracle\VirtualBox"
D:\>VBoxManage internalcommands createrawvmdk -filename d:\VirtualBox\HardDisks\mydisk.vmdk -rawdisk \\.\PhysicalDrive0
}}}

 * [備忘] 把 Windows 變成 Linux 上跑的 VirtualBox Image
   * [參考] [http://www.virtualbox.org/wiki/Migrate_Windows VirtualBox 官網維基 Migrate Windows]
{{{
jazz@jazzbook:~$ dd if=/dev/sdb of=A8J_WinXP_100823.img bs=1M
jazz@jazzbook:~$ VBoxManage convertfromraw A8J_WinXP_100823.img A8J_WinXP.vdi
}}}
 * [備忘] 把 Raw Image 變成 Linux 上跑的 VirtualBox Image
   * [錯誤作法] 如果給 Raw Image 的話，會出現不是 block device 的訊息。因此要用 losetup 把 image 變成 block device
{{{
jazz@jazzbook:~$ VBoxManage internalcommands createrawvmdk -filename .VirtualBox/HardDisks/A8J.vdi -rawdisk /home/jazz/A8J_WinXP_100823.img 
Oracle VM VirtualBox Command Line Management Interface Version 3.2.8
(C) 2005-2010 Oracle Corporation
All rights reserved.

File '/home/jazz/A8J_WinXP_100823.img' is no block device
The raw disk vmdk file was not created
}}}
   * [正確作法] 
{{{
jazz@jazzbook:~$ sudo losetup /dev/loop2 /home/jazz/A8J_WinXP_100823.img 
[sudo] password for jazz: 
jazz@jazzbook:~$ VBoxManage internalcommands createrawvmdk -filename .VirtualBox/HardDisks/A8J.vdi -rawdisk /dev/loop2
Oracle VM VirtualBox Command Line Management Interface Version 3.2.8
(C) 2005-2010 Oracle Corporation
All rights reserved.

RAW host disk access VMDK file .VirtualBox/HardDisks/A8J.vdi created successfully.
}}}
 * [http://virtualboxes.org/images/ VirtualBoxes] – Free VirtualBox® Images - 有一些已經建好的環境可以快速測試