> -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Karanbir Singh > Sent: Saturday, September 17, 2011 5:34 AM > To: CentOS mailing list > Subject: Re: [CentOS] This doesn't make sense > > Hi, > > On 09/17/2011 02:52 AM, Thomas Dukes wrote: > > It won't boot CentOS 6.0 64 bit, Scientific Linux 64 bit > 6.1, but will > > boot > > 32 bit CentOS 6.0. > > Can you expand a bit on the 'wont boot', actually expand quite a lot. > Run the installer in debug mode and turn off all rhgb, quiet > etc and see what point and how far the system gets. I get the 'Welcome' screen, I make the selection to install or upgrade, get to 'Loading vmlinuz..', then it hangs. Maybe the DVDs are bad. Can a 32 bit machine create a 64 bit install disc? > > Also, some manufacturers have been known to turn off 64 bit ( > lm ) support in BIOS when the device is sold with a 32bit > Windows. Make sure that its not the case. I looked through the BIOS but didn't see anything about 64 bit > > Finally, you mentioned 5.7 but didnt say what your test > results there were. Does the 5.7/x86_64 installer boot for > you ? if not, how far does it get ? is that about the same > point as the 6.0 installer ? > I'm running 5.7 32 bit on 32 bit machines. Thanks, Eddie