[gentoo-user] Migration from single to dual core
I have been running a machine for a long while. I am beginning to think that the old saw that Gentoo isn't release oriented is hogwash: each installation seems to be more polished, leaving behind a windrove of cruft accumlating over the years. The few times I have installed since my introduction two years ago have each exposed some more polished installation aspects/details. Be that as it may, I have now installed a new motherboard and CPU. I have moved from a 64 bit AMD single core Athlon 64 to a dual core AMD Athlon 64. The install has gone well, I have had to recompile the kernel before migrating; however, some questions remain. So it's back to the old threads about whether 64 bits is superior to 32, etc. My question now is, given that the system is working damned well now, what is the best way to handle this: recompile everything? Should I recompile gcc and the libraries and all compilers. I have to say that this system is pretty solid, but it's been hard to keep up with the housekeeping. And emerge -uDav world has been next to impossible. So, again, what differences will there be, that will require immediate adjustment? I have changed to -j3 in make.conf. I have so many packages installed it will take many days to recompile, and, again, I am considering a reinstallation of everything. Gentoo has cured me of that weakness for constant upgrades and installs, even while convincing me of the excellence of compiling for the machine. Alan Davis -- Alan Davis, Kagman High School, Saipan [EMAIL PROTECTED] It's never a matter of liking or disliking ... ---Santa Ynez Chumash Medicine Man -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Migration from single to dual core
On Mittwoch, 2. Januar 2008, Alan E. Davis wrote: So it's back to the old threads about whether 64 bits is superior to 32, etc. My question now is, given that the system is working damned well now, what is the best way to handle this: recompile everything? Should I recompile gcc and the libraries and all compilers. mkfs.YOURFSOFCHICE follow the usual installation instructions. There is no sane nor safe way to 'upgrade' from 32 ot 64bit. You would have to recompile everything - and some stuff several times. It will be a lot easier and should be faster to start from scratch. -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Migration from single to dual core
On Thu, 2008-01-03 at 00:14 +1000, Alan E. Davis wrote: I have been running a machine for a long while. I am beginning to think that the old saw that Gentoo isn't release oriented is hogwash: each installation seems to be more polished, leaving behind a windrove of cruft accumlating over the years. The few times I have installed since my introduction two years ago have each exposed some more polished installation aspects/details. Be that as it may, I have now installed a new motherboard and CPU. I have moved from a 64 bit AMD single core Athlon 64 to a dual core AMD Athlon 64. The install has gone well, I have had to recompile the kernel before migrating; however, some questions remain. So it's back to the old threads about whether 64 bits is superior to 32, etc. My question now is, given that the system is working damned well now, what is the best way to handle this: recompile everything? Should I recompile gcc and the libraries and all compilers. I have to say that this system is pretty solid, but it's been hard to keep up with the housekeeping. And emerge -uDav world has been next to impossible. So, again, what differences will there be, that will require immediate adjustment? I have changed to -j3 in make.conf. I have so many packages installed it will take many days to recompile, and, again, I am considering a reinstallation of everything. Gentoo has cured me of that weakness for constant upgrades and installs, even while convincing me of the excellence of compiling for the machine. I don't think you have to recompile everything. AMD64 and AMD64 X2 share the same -march setting. All that might need to be done is adding -msse3 to your CFLAGS, because the first generations of AMD64 didn't have that feature and thus it's not included in -march=k8. However, this flag should only influence multimedia apps and encoders like mplayer, vlc or ogmtools (and their direct deps). signature.asc Description: This is a digitally signed message part
Re: [gentoo-user] Migration from single to dual core
On Thu, 2008-01-03 at 00:14 +1000, Alan E. Davis wrote: So it's back to the old threads about whether 64 bits is superior to 32, etc. My question now is, given that the system is working damned well now, what is the best way to handle this: recompile everything? Should I recompile gcc and the libraries and all compilers. In case I didn't understand you correctly in my first response and you really want to migrate from 64bit to 32 or vice versa, then I must say, that's not possible without a full reinstall. signature.asc Description: This is a digitally signed message part
Re: [gentoo-user] Migration from single to dual core
On Thu, 3 Jan 2008 00:14:58 +1000, Alan E. Davis wrote: So, again, what differences will there be, that will require immediate adjustment? I have changed to -j3 in make.conf. I have so many packages installed it will take many days to recompile, and, again, I am considering a reinstallation of everything. Providing you are sticking to the same 32 or 64 bit choice, enabling SMP in the kernel should be sufficient, although you may also want to revisit your CFLAGS (I went from Althon64 to Intel Core2Duo so I did have to change CFLAGS). So what if it takes days to emerge -e world? You have a working system that will continue to work while you are recompiling. As far as the build up of cruft on your system is concerned, reinstalling to get rid of it is the windows-esque solution, i.e. it is not a solution at all. You need to learn top keep your system clean with judicious use of emerge --depclean and revdep-rebuild. If a worl update causes you problems now, reinstalling won't fix that, it will merely delay its recurrence. -- Neil Bothwick Why marry a virgin? If she wasn't good enough for the rest of them, then she isn't good enough for you. signature.asc Description: PGP signature
Re: [gentoo-user] Migration from single to dual core
I apologize: it isn't clear from my message, that I want to migrate from a single core AMD 64 to a dual core AMD 64X2 processor. I only intended to comment obtusely about 64 vs 32 bits, but I think I muffed that. Your comment about the -CFLAGS was pertinent. Thank you. Alan On Jan 3, 2008 1:09 AM, Florian Philipp [EMAIL PROTECTED] wrote: On Thu, 2008-01-03 at 00:14 +1000, Alan E. Davis wrote: So it's back to the old threads about whether 64 bits is superior to 32, etc. My question now is, given that the system is working damned well now, what is the best way to handle this: recompile everything? Should I recompile gcc and the libraries and all compilers. In case I didn't understand you correctly in my first response and you really want to migrate from 64bit to 32 or vice versa, then I must say, that's not possible without a full reinstall. -- Alan Davis, Kagman High School, Saipan [EMAIL PROTECTED] It's never a matter of liking or disliking ... ---Santa Ynez Chumash Medicine Man -- [EMAIL PROTECTED] mailing list
