Stephen John Smoogen <smooge at gmail.com> wrote:> I am guessing because my drives were blank and smaller than 2 TB that > it defaulted to MBR even when the system had a UEFI BIOS (as long as > the firmware is in legacy mode).Right, the problem seems to arise if you already have partitions on your MBR disk. Perhaps Fred Smith can confirm this.> What is the partition table of the drive you are trying to install > to?MBR, 240 GB (an SSD), with CentOS 6 already installed on a partition. (There are also other partitions.) -- Yves Bellefeuille <yan at storm.ca>
On 15 February 2018 at 18:45, Yves Bellefeuille <yan at storm.ca> wrote:> Stephen John Smoogen <smooge at gmail.com> wrote: > >> I am guessing because my drives were blank and smaller than 2 TB that >> it defaulted to MBR even when the system had a UEFI BIOS (as long as >> the firmware is in legacy mode). > > Right, the problem seems to arise if you already have partitions on > your MBR disk. Perhaps Fred Smith can confirm this. > >> What is the partition table of the drive you are trying to install >> to? > > MBR, 240 GB (an SSD), with CentOS 6 already installed on a partition. > (There are also other partitions.) >OK wild guess on install options as sometimes they will do this but not say they did it. Try adding inst.gpt=false to the boot line. Thank you for your patience on this.> -- > Yves Bellefeuille > <yan at storm.ca> > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos-- Stephen J Smoogen.
On Thu, Feb 15, 2018 at 06:45:51PM -0500, Yves Bellefeuille wrote:> Stephen John Smoogen <smooge at gmail.com> wrote: > > > I am guessing because my drives were blank and smaller than 2 TB that > > it defaulted to MBR even when the system had a UEFI BIOS (as long as > > the firmware is in legacy mode). > > Right, the problem seems to arise if you already have partitions on > your MBR disk. Perhaps Fred Smith can confirm this.Well, it's been a couple of years, but as best I recall, I had two brand-new 1TB drives, intending to use them as RAID-1, and the BIOS was (should have been, it said it was) in legacy mode. I thought it was pretty weird that Anaconda wouldn't let me proceed beyond partitioning/ fs creation without setting up the EFI partition. Somewhat more recently, I got a new system at work, containing Win10 (not a factory installation, but freshly installed by my employer 'cause they don't trust factory installation) and it already had UEFI in legacy mode by the time I got it. so when I installed C-7 on it, I had none of that garbage about requiring the EFI partition, it just sailed smoothly past it. Go Figure! -- ---- Fred Smith -- fredex at fcshome.stoneham.ma.us ----------------------------- But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. ------------------------------- Romans 5:8 (niv) ------------------------------
Stephen J Smoogen wrote:> OK wild guess on install options as sometimes they will do this but > not say they did it. Try adding inst.gpt=false to the boot line.Sorry, that didn't work. Nor did installing CentOS 7 without a boot loader, chroot-ing into it, and trying to install grub2 manually: grub2-install /dev/sda --target=i386-pc grub2-mkconfig -o /boot/grub2/grub.cfg> Thank you for your patience on this.I didn't realize you were the culprit, so that's OK. ;-) -- Yves Bellefeuille <yan at storm.ca>