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--- devdoc:devdoc_switch_i586_x86_64 [2015/11/26 14:57]
abelbeck [Upgrade switch to x86_64 (64-bit) or i586 (32-bit)]
+++ devdoc:devdoc_switch_i586_x86_64 [2015/11/29 10:18]
abelbeck
@@ Line 8: / Line 8: @@
 !!Note ->!!  With custom builds, the ''.config'' Buildroot config file determines what architecture is used.  The build-system command ''./scripts/build board_type'' allows you to qualify that ''.config'' options to a specific board type.  In other words, building with ''./scripts/build genx86_64-serial'' will not by itself generate a x86_64 image, you must first ''cp x86_64-configs/astlinux-ast11.config .config'' to make it happen.
+!!Info ->!! [[devdoc:boardtypes|List of board types]]
+===== Testing for x86_64 support =====
+If this CLI command generates output, then your board should support x86_64: ("Long Mode" CPUID flag)
+  grep '^flags.* lm ' /proc/cpuinfo
+If no output is generated then your board will not support x86_64.
 ===== Incompatibilities between i586 and x86_64 =====
@@ Line 56: / Line 67: @@
 You could just use the LDAP-AB tab for the backup/restore, but using cat/add also restores the passwords.