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