On 2013-05-10 03:11, Walter Dnes wrote: >> WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util >> fdisk doesn't support GPT. Use GNU Parted. > > I've repartitioned it 3 or 4 times, but it still comes up with that > error when I fire up fdisk. Is it a problem, and if so, can I dd a few > sectors to remove whatever it's complaining about?
I would suggest using a tool that understands both MBR and GPT. One of the the tools suggested by others in this list should suffice. I would not recommend using dd. > 2) >> The device presents a logical sector size that is smaller than the >> physical sector size. Aligning to a physical sector (or optimal I/O) >> size boundary is recommended, or performance may be impacted. I think most (if not all tools) that understands GPT should be able to align the disk properly so using such a tool will/should take care of alignment as well... > The fdisk default seems to be to start partition 1 at sector 2048. I > don't know the hardware side of disks. Is that OK. No idea. All I know is that you cannot trust the firmware of modern disks to tell you the layout of the disk since it can "move" sectors around to get around damaged sectors (or do whatever the firmware developers thinks is best)... Here's some reading for (perhaps) greater understanding (some) of the issues: https://wiki.archlinux.org/index.php/Advanced_Format https://en.wikipedia.org/wiki/Master_boot_record https://en.wikipedia.org/wiki/GUID_Partition_Table Also this seems relevant: http://superuser.com/questions/352572/why-does-the-partition-start-on-sector-2048-instead-of-63 Best regards Peter K
