Does someone know how do i install XUbuntu 10.04 64Bit on i686? Looks like in the download area there is only 64Bit version for AMD and not for i686..
i686 is a 32-bit architecture. EM64T is the Intel 64-bit architecture that it will run on.
If you don't know type of processor, use i386.
cat /proc/cpuinfo | grep flag flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a 3dnowprefetch osvw ibs skinit wdt nodeid_msr
lm is Long mode - 64 bit CPU
I recommend NOT using a 64bit version of Linux, mainly because of the utter lack of flash support.
You can still use more than 4GB of RAM if the kernel is compiled with Physical Address Extension.