c - Porting Unix to Windows, disks, partitions, EFI labels -


a unix program listing /dev/ , picking out diskx , diskxsy entries open , attempt read own "label" from. these disks/partitions not recognised windows, , not mounted. console app, pass paths kernel open (eventually).

so have setup test 5g disk use vm. gpt protected efi labelled disk. on osx see disk1, disk1s1 , disk1s9. program needs go through disks , partitions find label, in test case, jackpot disk1s1.

i can use setupdienumdeviceinterfaces() , list of \\?\physicaldrivex. can open (createfile()) , readfile() those. on test machine, 2 of these. first 1 boot, second test disk.

i can iterate findfirstvolume(), , open/read them (although, if delete trailing "\"?), here 3 "volumes". 2 on first physicaldrive0 , 1 on physicaldrive1. not seem able call functions read partitions method/path name.

if call ioctl_disk_get_drive_layout_ex on \\.\physicaldrive1 see 4 partitions, , first partition of type 0xee. (protected gpt).

  • what call able read partitions interested in?

  • should go \\.\physicaldrivex paths, since ioctls work there, or \\?\volume{} findfirstvolume() gets me?

  • i starting think there no convenient device me open, refers single partition? opening disk1s1 , reading "offset 0". supposed open physicaldrive1, , read "offset 0 + partition1.start" ? source examples use "\device\harddisk1\partition0" promising, not open me.

i'm focused on windows 10x64.

i've started on windows, , still find "\\.\" "\\?\" (and on) quite confusing, apologies if got wrong way around.


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