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When a "Standard partition" is created in Anaconda, is it automagically set as MSDOS in Bios systems and GPT in UEFI systems?

asked 2014-09-27 07:02:06 -0500

q2dg gravatar image

updated 2014-09-27 07:03:20 -0500

If it is, is there any way to view/change this behaviour? I can't see this information anywhere. Thanks

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answered 2014-10-07 16:53:08 -0500

Abraham Simpson gravatar image

Yes. At boot prompt add "gpt". Instead of using fdisk/mbr scheme, Fedora will use gdisk/gpt partition scheme, which has some crucial advantages: unlimited primary partitions, automatical partitions alignement for ssd, larger than 2TB partitions. On bios systems, with gpt you have to add a 1M bios type partition at the beginning of the boot disk.

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answered 2014-09-28 05:56:15 -0500

hedayat gravatar image

"Standard Partition" scheme is related to partitions themselves, not about the partition table. So, it'll create plain physical partitions, rather than using LVM or BTRFS.

If a partition table already exists on the disk, Fedora will use it since the existing partitions should be preserved.

Fedora will only create a new partition table when there are no partition tables on the disk (so, it is a raw disk without any partitions/partition tables). AFAIK, on these systems Fedora will create a GPT table, even on BIOS systems. GPT is better than MBR anyway. In earlier Fedora versions you were able to force Anaconda to create an MBR rather than GPT by adding a nogpt (or something similar) option to kernel boot options in initial Fedora installer screen (I don't know how it could be acheived in live versions. Probably you could pass the same option to Anaconda itself). I don't know if such an option still exists.

Finally, AFAIK, in UEFI systems you must use GPT.

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Asked: 2014-09-27 07:02:06 -0500

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Last updated: Oct 07 '14