On Wed, 21 Nov 2007 21:37:09 +0800 "Chee How Chua" <[EMAIL PROTECTED]> wrote:
> Hi guys, > > When I install openSUSE, how does it know whether it should install a > 32-bit kernel or a 64-bit kernel? > > Does any part of the installation reflect that? 'uname -a' will show you whether you have a 32-bit or 64-bit kernel. The 64-bit kernel should show up as "x86_64" where a 32-bit kernel will show up as i386 (and possibly the CPU type, such as athalon). > The complication arises when the system originally has 2GB RAM but > will later on be increased to 8GB RAM. > > If the installed kernel had been 32-bit, is it possible to upgrade the > whole installation to 64-bit to support the increase in RAM? Upgrading from a 32-bit system to a 64-bit system is dangerous. The x86_64 architecture supports 32-bit, but you need a kernel that supports the 32-bit environment (Linux does) and a set of libraries for both 32-bit and 64-bit. You are much better doing a clean install of a 64-bit system when you can schedule it, then when you upgrade to 8GB your kernel will support it. -- Jerry Feldman <[EMAIL PROTECTED]> Boston Linux and Unix user group http://www.blu.org PGP key id:C5061EA9 PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9
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