Re: free space before the first and after the last partition if GPT partition scheme is used
Sven,
for some reason, I do not see those partitions with gdisk:
http://i.imgur.com/4BlDQx7.jpg On the other hand, I'm also using older
version(0.8.5 vs 0.8.8) of gdisk than you.. Or is there some other
reason?
In addition, while your gdisk output says that you have 0B of free
space, then I have 1.3MiB of free space- I guess it's because you
aligned your partitions on 8 sector boundaries and there was no need
to leave free space for alignment?
regards,
Martin
On Sun, May 11, 2014 at 6:30 PM, Sven Hartge <sven@svenhartge.de> wrote:
> Martin T <m4rtntns@gmail.com> wrote:
>
>> I see. Thanks! Are those "bios_grub" or "EFI system" partitions
>> located inside the GPT scheme, i.e. inside the first ~16KiB of the
>> disk and it is not seen with gdisk? In addition, if this small area
>> after the last partition is also for alignment purposes, then where is
>> the backup GPT stored?
>
> It is located somewhere inside the GPT. Those partitions do not need to
> be in the first 16KiB of a disk, they can be everywhere. (Though some
> UEFI implementations have problems if the boot partition is beyond the
> 2TiB mark.)
>
> And of course they are seen by gdisk, as they are normal partitions like
> every other partition. There are no "magic" disk spaces inside a GPT.
>
> # gdisk -l /dev/sda
> GPT fdisk (gdisk) version 0.8.8
>
> Partition table scan:
> MBR: protective
> BSD: not present
> APM: not present
> GPT: present
>
> Found valid GPT with protective MBR; using GPT.
> Disk /dev/sda: 3907029168 sectors, 1.8 TiB
> Logical sector size: 512 bytes
> Disk identifier (GUID): A2890495-0F45-4BA9-BA69-598347F489B9
> Partition table holds up to 128 entries
> First usable sector is 34, last usable sector is 3907029134
> Partitions will be aligned on 8-sector boundaries
> Total free space is 0 sectors (0 bytes)
>
> Number Start (sector) End (sector) Size Code Name
> 1 34 2047 1007.0 KiB EF02 primary
> 2 2048 195311615 93.1 GiB FD00 primary
> 3 195311616 3907029134 1.7 TiB FD00 primary
>
> Grüße,
> Sven.
>
> --
> Sigmentation fault. Core dumped.
>
>
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