Mac OS X v10.6: Starting up with the 32-bit or 64-bit kernel

 
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Operating Systems OS X (Apple) OS X Support RSS Mac OS X v10.6: Starting up with the 32-bit or 64-bit kernel
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Old 08-16-2010
Mac OS X v10.6: Starting up with the 32-bit or 64-bit kernel

Mac OS X v10.6 Snow Leopard includes a 64-bit kernel. On hardware that supports the 64-bit kernel, you can choose whether to start up (boot) your Mac using the new 64-bit kernel or the earlier 32-bit kernel.

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bscv(7D)							      Devices								  bscv(7D)

NAME
bscv, bscbus, i2bsc - Blade support chip interface driver DESCRIPTION
The bscv, bscbus and i2bsc drivers interface with the Blade support chip used on Sun Microsystem's Blade server products. These drivers provide a conduit for passing control, environmental, cpu signature and event information between Solaris and the Blade support chip. These drivers do not export public interfaces. Instead they make information available via picl, prtdiag, prtfru and related tools. In addition, these drivers log Blade support chip environmental event information into system logs. FILES
/platform/sun4u/kernel/drv/sparcv9/bscbus 64-bit ELF kernel driver /platform/sun4u/kernel/drv/sparcv9/bscv 64-bit ELF kernel driver /platform/sun4u/kernel/drv/sparcv9/i2bsc 64-bit ELF kernel driver /platform/i86pc/kernel/drv/bscbus 32-bit ELF kernel file (x86 only) /platform/i86pc/kernel/drv/bscv 32-bit ELF kernel file (x86 only) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ |ATTRIBUTE TYPE |ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |Limited to systems with | | |Blade Support Chip | +-----------------------------+-----------------------------+ |Availability |SUNWcar.u, SUNWcar.i | +-----------------------------+-----------------------------+ SunOS 5.10 22 August 2003 bscv(7D)