How to change partition type to Linux RAID autodetect (fd)?

Question

linux

Worth Debian Jessie
Disks 3TB, GPT
There is no type Linux RAID autodetect in the list of fdisk, gdisk?
Didn't find any information by googling.
Thank you!
ZY: I forgot to attach
system sda pins, sdb & sdc for RAID5 are prepared

Disk /dev/sda: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: D396FA67-B686-4D5F-99F0-6289D0D18B77

Device       Start        End    Sectors  Size Type
/dev/sda1     2048    3999743    3997696  1,9G Linux swap
/dev/sda2  3999744 5860532223 5856532480  2,7T Linux filesystem

Disk /dev/sdb: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: D396FA67-B686-4D5F-99F0-6289D0D18B77

Device       Start        End    Sectors  Size Type
/dev/sdb1     2048    3999743    3997696  1,9G Linux RAID
/dev/sdb2  3999744 5860532223 5856532480  2,7T Linux RAID

Disk /dev/sdc: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: D396FA67-B686-4D5F-99F0-6289D0D18B77

Device       Start        End    Sectors  Size Type
/dev/sdc1     2048    3999743    3997696  1,9G Linux swap
/dev/sdc2  3999744 5860532223 5856532480  2,7T Linux filesystem

Partition Type Inference

[email protected]:**# fdisk /dev/sdb

Welcome to fdisk (util-linux 2.25.2).                                                                                                                                   
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.


Command (m for help): l
  1 EFI System                     C12A7328-F81F-11D2-BA4B-00A0C93EC93B
  2 MBR partition scheme           024DEE41-33E7-11D3-9D69-0008C781F39F
  3 Intel Fast Flash               D3BFE2DE-3DAF-11DF-BA40-E3A556D89593
  4 BIOS boot                      21686148-6449-6E6F-744E-656564454649
  5 Microsoft reserved             E3C9E316-0B5C-4DB8-817D-F92DF00215AE
  6 Microsoft basic data           EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
  7 Microsoft LDM metadata         5808C8AA-7E8F-42E0-85D2-E1E90434CFB3
  8 Microsoft LDM data             AF9B60A0-1431-4F62-BC68-3311714A69AD
  9 Windows recovery environment   DE94BBA4-06D1-4D40-A16A-BFD50179D6AC
 10 IBM General Parallel Fs        37AFFC90-EF7D-4E96-91C3-2D7AE055B174
 11 Microsoft Storage Spaces       E75CAF8F-F680-4CEE-AFA3-B001E56EFC2D
 12 HP-UX data                     75894C1E-3AEB-11D3-B7C1-7B03A0000000
 13 HP-UX service                  E2A1E728-32E3-11D6-A682-7B03A0000000
 14 Linux swap                     0657FD6D-A4AB-43C4-84E5-0933C84B4F4F
 15 Linux filesystem               0FC63DAF-8483-4772-8E79-3D69D8477DE4
 16 Linux server data              3B8F8425-20E0-4F3B-907F-1A25A76F98E8
 17 Linux root (x86)               44479540-F297-41B2-9AF7-D131D5F0458A
 18 Linux root (x86-64)            4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709
 19 Linux reserved                 8DA63339-0007-60C0-C436-083AC8230908
 20 Linux home                     933AC7E1-2EB4-4F13-B844-0E14E2AEF915
 21 Linux RAID                     A19D880F-05FC-4D3B-A006-743F0F84911E
 22 Linux extended boot            BC13C2FF-59E6-4262-A352-B275FD6F7172
 23 Linux LVM                      E6D6D379-F507-44C2-A23C-238F2A3DF928
 24 FreeBSD data                   516E7CB4-6ECF-11D6-8FF8-00022D09712B
 25 FreeBSD boot                   83BD6B9D-7F41-11DC-BE0B-001560B84F0F
 26 FreeBSD swap                   516E7CB5-6ECF-11D6-8FF8-00022D09712B
 27 FreeBSD UFS                    516E7CB6-6ECF-11D6-8FF8-00022D09712B
 28 FreeBSD ZFS                    516E7CBA-6ECF-11D6-8FF8-00022D09712B
 29 FreeBSD Vinum                  516E7CB8-6ECF-11D6-8FF8-00022D09712B
 30 Apple HFS/HFS+                 48465300-0000-11AA-AA11-00306543ECAC
 31 Apple UFS                      55465300-0000-11AA-AA11-00306543ECAC
 32 Apple RAID                     52414944-0000-11AA-AA11-00306543ECAC
 33 Apple RAID offline             52414944-5F4F-11AA-AA11-00306543ECAC
 34 Apple boot                     426F6F74-0000-11AA-AA11-00306543ECAC
 35 Apple label                    4C616265-6C00-11AA-AA11-00306543ECAC
 36 Apple TV recovery              5265636F-7665-11AA-AA11-00306543ECAC
 37 Apple Core storage             53746F72-6167-11AA-AA11-00306543ECAC
 38 Solaris boot                   6A82CB45-1DD2-11B2-99A6-080020736631
 39 Solaris root                   6A85CF4D-1DD2-11B2-99A6-080020736631
 40 Solaris /usr & Apple ZFS       6A898CC3-1DD2-11B2-99A6-080020736631
 41 Solaris swap                   6A87C46F-1DD2-11B2-99A6-080020736631
 42 Solaris backup                 6A8B642B-1DD2-11B2-99A6-080020736631
 43 Solaris /var                   6A8EF2E9-1DD2-11B2-99A6-080020736631
 44 Solaris /home                  6A90BA39-1DD2-11B2-99A6-080020736631
 45 Solaris alternate sector       6A9283A5-1DD2-11B2-99A6-080020736631
 46 Solaris reserved 1             6A945A3B-1DD2-11B2-99A6-080020736631
 47 Solaris reserved 2             6A9630D1-1DD2-11B2-99A6-080020736631
 48 Solaris reserved 3             6A980767-1DD2-11B2-99A6-080020736631
 49 Solaris reserved 4             6A96237F-1DD2-11B2-99A6-080020736631
 50 Solaris reserved 5             6A8D2AC7-1DD2-11B2-99A6-080020736631
 51 NetBSD swap                    49F48D32-B10E-11DC-B99B-0019D1879648
 52 NetBSD FFS                     49F48D5A-B10E-11DC-B99B-0019D1879648
 53 NetBSD LFS                     49F48D82-B10E-11DC-B99B-0019D1879648
 54 NetBSD concatenated            2DB519C4-B10E-11DC-B99B-0019D1879648
 55 NetBSD encrypted               2DB519EC-B10E-11DC-B99B-0019D1879648
 56 NetBSD RAID                    49F48DAA-B10E-11DC-B99B-0019D1879648
 57 ChromeOS kernel                FE3A2A5D-4F32-41A7-B725-ACCC3285A309
 58 ChromeOS root fs               3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC
 59 ChromeOS reserved              2E0A753D-9E48-43B0-8337-B15192CB1B5E
 60 MidnightBSD data               85D5E45A-237C-11E1-B4B3-E89A8F7FC3A7
 61 MidnightBSD boot               85D5E45E-237C-11E1-B4B3-E89A8F7FC3A7
 62 MidnightBSD swap               85D5E45B-237C-11E1-B4B3-E89A8F7FC3A7
 63 MidnightBSD UFS                0394Ef8B-237C-11E1-B4B3-E89A8F7FC3A7
 64 MidnightBSD ZFS                85D5E45D-237C-11E1-B4B3-E89A8F7FC3A7
 65 MidnightBSD Vinum              85D5E45C-237C-11E1-B4B3-E89A8F7FC3A7

Answer 1

0xFD
UPD : autodetect is done by mdadm, which tries to recognize all partitions with type 0xFD as array components. To do this, mdadm.confit must be written DEVICE partitionsin if the partition must be assembled before loading, then you also need to rebuild the initrd. There is no special partition type for this.