Thursday, March 27, 2008 at 9:22 AM |
Before switching to 64bit mode, make sure the hardware supports it.

To verify what is running and what the hardware can support, run the following as root:
# echo "Hardware:\t`bootinfo -y` bits capable"
Hardware: 64 bits capable

# echo "Running:\t`bootinfo -K` bits mode"
Running: 32 bits mode

# ls -l /unix /usr/lib/boot/unix
lrwxrwxrwx 1 root system 21 Aug 15 2006 /unix -> /usr/lib/boot/unix_mp
lrwxrwxrwx 1 root system 21 Aug 15 2006 /usr/lib/boot/unix -> /usr/lib/boot/unix_mp


Switching From 32 to 64 Bit Mode

To switch from 32-bit mode to 64-bit mode run the following commands, in the given order:
1. ln -sf /usr/lib/boot/unix_64 /unix
2. ln -sf /usr/lib/boot/unix_64 /usr/lib/boot/unix
3. bosboot -ad /dev/ipldevice
4. shutdown -Fr


Switching From 64 To 32-Bit Mode

To switch from 64-bit mode to 32-bit mode run the following commands, in the given order:
1. ln -sf /usr/lib/boot/unix_mp /unix
2. ln -sf /usr/lib/boot/unix_mp /usr/lib/boot/unix
3. bosboot -ad /dev/ipldevice
4. shutdown -Fr
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