How to identify 32 or 64 bits -
Can someone tell me how to determine if a computer can run 64 bit Fedora? I have two similar Dell desk top computers with what appears to be the same processor, one of which has had F-12 64 bit installed on it and seems to be happy. I always assumed they were 32 bit computers and really don't care which they are but wish to avoid using the b.w. to download another copy of F-12. I need to know before I can upgrade the second one. Thanks. Bob -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: How to identify 32 or 64 bits -
On 12/17/2009 06:11 PM, Bob Goodwin wrote: > >Can someone tell me how to determine if a computer can run 64 bit >Fedora? > >I have two similar Dell desk top computers with what appears to be >the same processor, one of which has had F-12 64 bit installed on it >and seems to be happy. I always assumed they were 32 bit computers >and really don't care which they are but wish to avoid using the >b.w. to download another copy of F-12. > >I need to know before I can upgrade the second one. > >Thanks. > >Bob > As I indicated in the other thread, # grep lm /proc/cpuinfo If it returns nothing, your system is 32-bit. Rahul -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: How to identify 32 or 64 bits -
On 17/12/09 07:50, Rahul Sundaram wrote: On 12/17/2009 06:11 PM, Bob Goodwin wrote: Can someone tell me how to determine if a computer can run 64 bit Fedora? I have two similar Dell desk top computers with what appears to be the same processor, one of which has had F-12 64 bit installed on it and seems to be happy. I always assumed they were 32 bit computers and really don't care which they are but wish to avoid using the b.w. to download another copy of F-12. I need to know before I can upgrade the second one. Thanks. Bob As I indicated in the other thread, # grep lm /proc/cpuinfo If it returns nothing, your system is 32-bit. Rahul I'm sorry, I missed the "grep." So all I did was cat the /proc/info and didn't know what to look for? This F-11 box yields: [b...@box9 ~]$ grep lm /proc/cpuinfo "nothing returned" While the Omega F-12 box yields: [b...@box6 ~]$ grep lm /proc/cpuinfo flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid cx16 xtpr flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid cx16 xtpr From which I shall conclude that box6 is 64 bit and will work with the version installed but that box9 will not. So I will have to burn up some more of my b.w. allotment and download the final release. Ok, just as long as I know I'm not doing something unnecessary. I knew I was taking a chance with the RC1 version. Once more I appreciate your work and the help. Thank you. Bob -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: How to identify 32 or 64 bits -
On Thu, 2009-12-17 at 18:20 +0530, Rahul Sundaram wrote: > On 12/17/2009 06:11 PM, Bob Goodwin wrote: > > > >Can someone tell me how to determine if a computer can run 64 bit > >Fedora? > > > >I have two similar Dell desk top computers with what appears to be > >the same processor, one of which has had F-12 64 bit installed on it > >and seems to be happy. I always assumed they were 32 bit computers > >and really don't care which they are but wish to avoid using the > >b.w. to download another copy of F-12. > > > >I need to know before I can upgrade the second one. > > > >Thanks. > > > >Bob > > > > As I indicated in the other thread, > > # grep lm /proc/cpuinfo > > If it returns nothing, your system is 32-bit. But the converse is not necessarily true, e.g. on my 32-bit Asus netbook I get: bash-4.0$ grep lm /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm bash-4.0$ (the lahf_lm flag matches, though I've no idea what it means). poc -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: How to identify 32 or 64 bits -
On Thu, 2009-12-17 at 13:48 +, Patrick O'Callaghan wrote: > bash-4.0$ grep lm /proc/cpuinfo > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov > pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc > arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe > lahf_lm > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov > pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc > arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe > lahf_lm > bash-4.0$ > > (the lahf_lm flag matches, though I've no idea what it means). arch/x86/include/asm/cpufeature.h says it indicates whether the LAHF/SAHF (load status flags to AH /save AH to status flags) instructions are available in long mode. I'm not sure what it implies if you have lahf_lm but not lm! Regards, Bryn. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: How to identify 32 or 64 bits -
On Thu, 2009-12-17 at 08:44 -0500, Bob Goodwin wrote: > On 17/12/09 07:50, Rahul Sundaram wrote: > I'm sorry, I missed the "grep." So all I did was cat the /proc/info and > didn't know what to look for? > > This F-11 box yields: > > [b...@box9 ~]$ grep lm /proc/cpuinfo > "nothing returned" This box doesn't have the lm flag. > > While the Omega F-12 box yields: > > [b...@box6 ~]$ grep lm /proc/cpuinfo > flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca > cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe > syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl cid ^^ +--- that's what you're looking for! Also, if you have 64-bit install media around you can always just try to boot it on the other hardware. The worst that can happen is it will fail horribly during booting - it won't leave you with a borked install that won't boot (since the 64-bit media will boot a 64-bit kernel during the installation). Regards, Bryn. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: How to identify 32 or 64 bits -
On 17/12/09 08:56, Bryn M. Reeves wrote: On Thu, 2009-12-17 at 13:48 +, Patrick O'Callaghan wrote: bash-4.0$ grep lm /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm bash-4.0$ (the lahf_lm flag matches, though I've no idea what it means). arch/x86/include/asm/cpufeature.h says it indicates whether the LAHF/SAHF (load status flags to AH /save AH to status flags) instructions are available in long mode. I'm not sure what it implies if you have lahf_lm but not lm! Regards, Bryn. Good! Thanks to all who responded, this has been educational and worth the bandwidth expended to me ... So much to know, so little time to learn! Bob -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
