Sorry I haven't replied to the responses offered, but sometimes Life and Work interrupt our fun.
Anyway, GB, your first question got me to checking the Memory Device more closely. While there was nothing on it, it was formatted for Windows. After I did a Mac reformat, I was able to continue.
However, when running UniBeast, the installation failed. Searching didn't reveal anything that seemed like what happened. Anyway, the log entries are:
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Install: "UniBeast Mac App Store"
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Install: "Mac App Store Mavericks - 10.9"
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: UniBeast - 3.0.1-4.pkg#unibeast-2.pkg : com.tonymacx86.unibeastMacAppStore.Mavericks.pkg : 1.0
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: UniBeast - 3.0.1-4.pkg#chimeraV22-2.pkg : com.tonymacx86.unibeastMacAppStore.Mavericks-Chimera.pkg : 1.0
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: UniBeast - 3.0.1-4.pkg#mavericks.pkg : com.tonymacx86.unibeastMacAppStore.Mavericks-Extra.pkg : 1.0
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: UniBeast - 3.0.1-4.pkg#themes-2.pkg : com.tonymacx86.unibeastMacAppStore.Mavericks-Themes.pkg : 1.0
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: UniBeast - 3.0.1-4.pkg#orgchameleonboot-2.pkg : com.tonymacx86.unibeastMacAppStore.Mavericks-Boot.pkg : 1.0
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: UniBeast - 3.0.1-4.pkg#smbios-2.pkg : com.tonymacx86.unibeastMacAppStore.Mavericks-smbios.pkg : 1.0
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: ================================================================================
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: It took 0.00 seconds to summarize the package selections.
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: location = file://localhost
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#unibeast-2.pkg
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#chimeraV22-2.pkg
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#mavericks.pkg
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#themes-2.pkg
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#orgchameleonboot-2.pkg
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: -[IFDInstallController(Private) _buildInstallPlan]: file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#smbios-2.pkg
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Set authorization level to root for session
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Will use PK session
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Starting installation:
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Configuring volume "USB"
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Preparing disk for local booted install.
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Free space on "USB": 31.47 GB (31472128000 bytes).
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Create temporary directory "/var/folders/fn/q0b6lyrj4wsc7y6xsnvkd5qc0000gn/T//Install.981GryTyx"
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: IFPKInstallElement (6 packages)
Jul 4 17:10:39 Patricia-Woodruffs-iMac.local Installer[981]: Using authorization level of root for IFPKInstallElement
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Adding client PKInstallDaemonClient pid=981, uid=501 (/System/Library/CoreServices/Installer.app/Contents/MacOS/Installer)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local Installer[981]: PackageKit: Enqueuing install with boosting
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: ----- Begin install -----
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: request=PKInstallRequest <6 packages, destination=/Volumes/USB>
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: packages=(
"PKLeopardPackage <file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#unibeast-2.pkg>",
"PKLeopardPackage <file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#chimeraV22-2.pkg>",
"PKLeopardPackage <file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#mavericks.pkg>",
"PKLeopardPackage <file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#themes-2.pkg>",
"PKLeopardPackage <file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#orgchameleonboot-2.pkg>",
"PKLeopardPackage <file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#smbios-2.pkg>"
 
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Extracting file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#unibeast-2.pkg (destination=/Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root/temp, uid=0)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Extracting file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#chimeraV22-2.pkg (destination=/Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root, uid=0)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Extracting file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#mavericks.pkg (destination=/Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root/Extra/Extensions, uid=0)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Extracting file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#themes-2.pkg (destination=/Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root/Extra, uid=0)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Extracting file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#orgchameleonboot-2.pkg (destination=/Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root/Extra, uid=0)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Extracting file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#smbios-2.pkg (destination=/Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root/Extra, uid=0)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: prevent user idle system sleep
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: suspending backupd
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Using trashcan path /Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Trashes for sandbox /Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Shoving /Volumes/USB/.PKInstallSandboxManager/DCD38134-7980-42A2-AEF0-4A5861EE12CB.activeSandbox/Root (3 items) to /Volumes/USB
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Executing script "./postinstall" in /private/tmp/PKInstallSandbox.DyOPKV/Scripts/com.tonymacx86.unibeastMacAppStore.Mavericks.pkg.nVYlIo
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall:
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall: UniBeast 20131008-1 Copyright tonymacx86 LLC
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall: Install Application incomplete, exiting
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall: Error with OS X Installation Application.
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall: Redownload from Mac App Store.
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall: UniBeast USB Creation Failed, Exiting
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: ./postinstall:
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: releasing backupd
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: allow user idle system sleep
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Install Failed: Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “UniBeast - 3.0.1-4”." UserInfo=0x7feafb750700 {NSFilePath=./postinstall, NSURL=file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#unibeast-2.pkg, PKInstallPackageIdentifier=com.tonymacx86.unibeastMacAppStore.Mavericks.pkg, NSLocalizedDescription=An error occurred while running scripts from the package “UniBeast - 3.0.1-4”.} {
NSFilePath = "./postinstall";
NSLocalizedDescription = "An error occurred while running scripts from the package \U201cUniBeast - 3.0.1-4\U201d.";
NSURL = "file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#unibeast-2.pkg";
PKInstallPackageIdentifier = "com.tonymacx86.unibeastMacAppStore.Mavericks.pkg";
}
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local Installer[981]: install:didFailWithError:Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “UniBeast - 3.0.1-4”." UserInfo=0x7fdacd353890 {NSFilePath=./postinstall, NSURL=file://localhost/Volumes/USB/UniBeast%20-%203.0.1-4.pkg#unibeast-2.pkg, PKInstallPackageIdentifier=com.tonymacx86.unibeastMacAppStore.Mavericks.pkg, NSLocalizedDescription=An error occurred while running scripts from the package “UniBeast - 3.0.1-4”.}
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Running idle tasks
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Removing client PKInstallDaemonClient pid=981, uid=501 (/System/Library/CoreServices/Installer.app/Contents/MacOS/Installer)
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Done with sandbox removals
Jul 4 17:10:40 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Sandbox /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/4294A09E-4193-4F44-974E-30365A9897C3.sandbox: relevance 266
Jul 4 17:10:41 Patricia-Woodruffs-iMac.local installd[486]: PackageKit: Sandbox /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/C7B3FAC4-3510-4C77-901A-E9B383E20E4D.sandbox: relevance 233
Jul 4 17:10:41 Patricia-Woodruffs-iMac.local Installer[981]: Install failed: The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
Jul 4 17:10:41 Patricia-Woodruffs-iMac.local Installer[981]: IFDInstallController CACC6720 state = 8
Jul 4 17:10:41 Patricia-Woodruffs-iMac.local Installer[981]: Displaying 'Install Failed' UI.
Jul 4 17:10:41 Patricia-Woodruffs-iMac.local Installer[981]: 'Install Failed' UI displayed message:'The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.'.