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/*        $NetBSD: disklabel_gpt.h,v 1.12 2013/11/24 08:17:50 jnemeth Exp $        */
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/*
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 * Copyright (c) 2002 Marcel Moolenaar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * $FreeBSD: src/sys/sys/gpt.h,v 1.7 2004/08/02 18:46:52 marcel Exp $
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 */
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#ifndef _SYS_DISKLABEL_GPT_H_
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#define        _SYS_DISKLABEL_GPT_H_
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/*
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 * Definitions for the EFI GUID Partition Table disk partitioning scheme.
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 *
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 * NOTE: As EFI is an Intel specification, all fields are stored in
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 * little-endian byte-order.
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 */
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/*
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 * GUID Partition Table Header
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 */
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struct gpt_hdr {
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        int8_t                hdr_sig[8];        /* identifies GUID Partition Table */
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        uint32_t        hdr_revision;        /* GPT specification revsion */
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        uint32_t        hdr_size;        /* size of GPT Header */
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        uint32_t        hdr_crc_self;        /* CRC32 of GPT Header */
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        uint32_t        hdr__rsvd0;        /* must be zero */
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        uint64_t        hdr_lba_self;        /* LBA that contains this Header */
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        uint64_t        hdr_lba_alt;        /* LBA of backup GPT Header */
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        uint64_t        hdr_lba_start;        /* first LBA usable for partitions */
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        uint64_t        hdr_lba_end;        /* last LBA usable for partitions */
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        uint8_t                hdr_guid[16];        /* GUID to identify the disk */
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        uint64_t        hdr_lba_table;        /* first LBA of GPE array */
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        uint32_t        hdr_entries;        /* number of entries in GPE array */
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        uint32_t        hdr_entsz;        /* size of each GPE */
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        uint32_t        hdr_crc_table;        /* CRC32 of GPE array */
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        /*
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         * The remainder of the block that contains the GPT Header
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         * is reserved by EFI for future GPT Header expansion, and
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         * must be zero.
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         */
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};
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#define        GPT_HDR_SIG                "EFI PART"
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#define        GPT_HDR_REVISION        0x00010000        /* 1.0 */
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#define        GPT_HDR_BLKNO                1
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#define        GPT_HDR_SIZE                0x5c
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/*
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 * GUID Partition Entry
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 */
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struct gpt_ent {
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        uint8_t                ent_type[16];        /* partition type GUID */
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        uint8_t                ent_guid[16];        /* unique partition GUID */
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        uint64_t        ent_lba_start;        /* start of partition */
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        uint64_t        ent_lba_end;        /* end of partition */
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        uint64_t        ent_attr;        /* partition attributes */
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        uint16_t        ent_name[36];        /* partition name in UNICODE-16 */
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};
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#define        GPT_ENT_ATTR_REQUIRED_PARTITION                (1ULL << 0)
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                                        /* required for platform to function */
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#define        GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL        (1ULL << 1)
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                                        /* UEFI won't recognize file system */
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#define        GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE        (1ULL << 2)
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                                        /* legacy BIOS boot partition */
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/* The following three entries are from FreeBSD. */
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#define GPT_ENT_ATTR_BOOTME                        (1ULL << 59)
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                                        /* indicates a bootable partition */
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#define GPT_ENT_ATTR_BOOTONCE                        (1ULL << 58)
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                                /* attempt to boot this partition only once */
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#define GPT_ENT_ATTR_BOOTFAILED                        (1ULL << 57)
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                /* partition that was marked bootonce but failed to boot */
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/*
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 * Partition types defined by the EFI specification:
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 *
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 *        GPT_ENT_TYPE_UNUSED                Unused Entry
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 *        GPT_ENT_TYPE_EFI                EFI System Partition
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 *        GPT_ENT_TYPE_MBR                Partition containing legacy MBR
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 */
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#define        GPT_ENT_TYPE_UNUSED                \
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        {0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}}
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#define        GPT_ENT_TYPE_EFI                \
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        {0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}}
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#define        GPT_ENT_TYPE_MBR                \
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        {0x024dee41,0x33e7,0x11d3,0x9d,0x69,{0x00,0x08,0xc7,0x81,0xf3,0x9f}}
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/*
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 * Partition types defined by other operating systems.
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 */
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#define        GPT_ENT_TYPE_NETBSD_SWAP        \
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        {0x49f48d32,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
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#define        GPT_ENT_TYPE_NETBSD_FFS                \
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        {0x49f48d5a,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
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#define        GPT_ENT_TYPE_NETBSD_LFS                \
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        {0x49f48d82,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
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#define        GPT_ENT_TYPE_NETBSD_RAIDFRAME        \
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        {0x49f48daa,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
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#define        GPT_ENT_TYPE_NETBSD_CCD        \
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        {0x2db519c4,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
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#define        GPT_ENT_TYPE_NETBSD_CGD        \
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        {0x2db519ec,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
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#define        GPT_ENT_TYPE_FREEBSD                \
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        {0x516e7cb4,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
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#define        GPT_ENT_TYPE_FREEBSD_SWAP        \
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        {0x516e7cb5,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
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#define        GPT_ENT_TYPE_FREEBSD_UFS        \
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        {0x516e7cb6,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
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#define        GPT_ENT_TYPE_FREEBSD_VINUM        \
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        {0x516e7cb8,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
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#define GPT_ENT_TYPE_FREEBSD_ZFS        \
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        {0x516e7cba,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
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/*
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 * The following are unused but documented here to avoid reuse.
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 *
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 *      GPT_ENT_TYPE_FREEBSD_UFS2        \
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 *        {0x516e7cb7,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
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 */
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#define        GPT_ENT_TYPE_MS_RESERVED        \
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        {0xe3c9e316,0x0b5c,0x4db8,0x81,0x7d,{0xf9,0x2d,0xf0,0x02,0x15,0xae}}
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#define        GPT_ENT_TYPE_MS_BASIC_DATA        \
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        {0xebd0a0a2,0xb9e5,0x4433,0x87,0xc0,{0x68,0xb6,0xb7,0x26,0x99,0xc7}}
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#define        GPT_ENT_TYPE_MS_LDM_METADATA        \
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        {0x5808c8aa,0x7e8f,0x42e0,0x85,0xd2,{0xe1,0xe9,0x04,0x34,0xcf,0xb3}}
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#define        GPT_ENT_TYPE_MS_LDM_DATA        \
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        {0xaf9b60a0,0x1431,0x4f62,0xbc,0x68,{0x33,0x11,0x71,0x4a,0x69,0xad}}
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/*
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 * Linux originally used GPT_ENT_TYPE_MS_BASIC_DATA in place of
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 * GPT_ENT_TYPE_LINUX_DATA.
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 */
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#define        GPT_ENT_TYPE_LINUX_DATA                \
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        {0x0fc63daf,0x8483,0x4772,0x8e,0x79,{0x3d,0x69,0xd8,0x47,0x7d,0xe4}}
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#define        GPT_ENT_TYPE_LINUX_RAID                \
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        {0xa19d880f,0x05fc,0x4d3b,0xa0,0x06,{0x74,0x3f,0x0f,0x84,0x91,0x1e}}
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#define        GPT_ENT_TYPE_LINUX_SWAP                \
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        {0x0657fd6d,0xa4ab,0x43c4,0x84,0xe5,{0x09,0x33,0xc8,0x4b,0x4f,0x4f}}
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#define        GPT_ENT_TYPE_LINUX_LVM                \
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        {0xe6d6d379,0xf507,0x44c2,0xa2,0x3c,{0x23,0x8f,0x2a,0x3d,0xf9,0x28}}
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#define        GPT_ENT_TYPE_APPLE_HFS                \
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        {0x48465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
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#define        GPT_ENT_TYPE_APPLE_UFS                \
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        {0x55465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
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#if defined(__minix)
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#define        GPT_ENT_TYPE_MINIX_MFS                \
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        {0xb7aadf00,0xde27,0x11ca,0xa5,0x74,{0x56,0x72,0x69,0x6a,0x65,0x55}}
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#endif /* defined(__minix) */
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/*
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 * Used by GRUB 2.
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 */
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#define        GPT_ENT_TYPE_BIOS                \
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        {0x21686148,0x6449,0x6e6f,0x74,0x4e,{0x65,0x65,0x64,0x45,0x46,0x49}}
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#endif /* _SYS_DISKLABEL_GPT_H_ */