At Tue, 23 Feb 2010 16:11:48 +0000 CentOS mailing list <centos at centos.org> wrote: > > Thanks for your replies, just to clear things up, here is what I am seeing. > > If I reboot server "A" with the Ubuntu LiveCD, I get: > ---------------------------------------- > # parted /dev/sda p > > Model: DELL PERC 5/i (scsi) > Disk /dev/sda: 2998GB > Sector size (logical/physical): 512B/512B > Partition Table: msdos > > Number Start End Size Type File system Flags > 1 32.3kB 53.7GB 53.7GB primary ext3 > 2 53.7GB 62.3GB 8595MB primary linux-swap > 3 62.3GB 83.8GB 21.5GB primary ext3 > 4 83.8GB 2199GB 2115GB primary xfs > > # fdisk -l > > Disk /dev/sda: 2998.4 GB, 2998424043520 bytes > 255 heads, 63 sectors/track, 364537 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > Disk identifier: 0x852b68e5 > > Device Boot Start End Blocks Id System > /dev/sda1 1 6528 52436128+ 83 Linux > /dev/sda2 6529 7573 8393962+ 82 Linux swap / Solaris > /dev/sda3 7574 10185 20980890 83 Linux > /dev/sda4 10186 267349 2065669830 83 Linux > ---------------------------------------- > > Now when I try this with CentOS, I get: > ---------------------------------------- > Error: msdos labels do not support devices that have more than 4294967295 sectors. > ----------------------------------------- > > straight away. I understand what you guys are saying about GPT and > not being able to boot off it, etc but how did I end up in this > situation? And is this dangerous? > > I am thinking that if this is possible, why not try and setup the > second server the same way? But it just feels wrong that Ubuntu allows > this and if CentOS does not, there must be a good reason. I guessing one of these things is going on: A) Ubuntu has *patched* versions of parted and fdisk that disable their error checking (!). B) Ubuntu has new versions of parted and fdisk that are more liberal than the (older) versions shipped with CentOS. What does parted -v and fdisk -v display under the Ubuntu LiveCD? BTW which version of Ubuntu are you using? Hardy (8.4) or Karma (9.1)? > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller at deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/