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Hi there, |
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A new (to me) server has 64-bit CPUs. By my standards this is a REALLY |
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NICE high specification machine (I appears to be 2 x dual-core), but |
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in fact it's about 3 years old & is one of the earliest Intel Xeons |
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that supports 64-bits / AMD64 / EMT64. I think it is 64-bit Pentium 4, |
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rather than Core 2 architecture. |
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# cat /proc/cpuinfo | head -n 25 |
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processor : 0 |
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vendor_id : GenuineIntel |
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cpu family : 15 |
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model : 4 |
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model name : Intel(R) Xeon(TM) CPU 3.00GHz |
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stepping : 3 |
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cpu MHz : 2992.346 |
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cache size : 2048 KB |
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physical id : 0 |
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siblings : 2 |
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core id : 0 |
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cpu cores : 1 |
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apicid : 0 |
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initial apicid : 0 |
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fpu : yes |
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fpu_exception : yes |
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cpuid level : 5 |
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wp : yes |
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flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge |
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mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe |
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syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid cx16 |
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xtpr |
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bogomips : 5984.69 |
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clflush size : 64 |
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cache_alignment : 128 |
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address sizes : 36 bits physical, 48 bits virtual |
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power management: |
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I'm a bit confused by the 36-bit address size mentioned there, but I |
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assume this is OK. The Gentoo wiki seems to confirm this CPU is 64- |
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bit: http://tinyurl.com/klv7gc [1] |
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Is there anything I need to know about working with 64-bits / AMD64 / |
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EMT64, seeing as I've never done so before? |
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I have started following the Gentoo Linux AMD64 Handbook, because the |
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Quick Install Guide is described as "x86". Having untarred the stage I |
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am surprised to find a lib32 directory. I thought compatibility with |
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32-bit binaries was optional. Or am I misunderstanding? This is going |
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to be a headless server & I can't think that it'll need any binary |
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packages - possibly the management utility for the RAID controller |
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will be distributed as a binary, I'm not sure yet (the hardware RAID |
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key was missing when I got this machine ☹) |
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I'm editing my make.conf and looked at the Gentoo wiki for "Safe |
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Cflags" - it says 'CHOST="x86_64-pc-linux-gnu"'. But of course |
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(according to make.conf.example) one shouldn't change CHOST on an |
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installed system. Will the files in the stage 3 have been compiled |
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using this CHOST? |
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Any pointers would be gratefully appreciated - I'm wondering if |
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there's anything you guys all take for granted that I could mess up if |
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I don't allow for it early enough in the installation process. |
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Thanks in advance for any comments, |
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Stroller. |
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[1] http://en.gentoo-wiki.com/wiki/Safe_Cflags/Intel#Xeon_w.2FEM64T_.28also_Pentium_4_P6xx_or_Celeron_M_5xx.29 |
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