昨年8月末から使っているLenovo ThinkCentre M720qのディスク。gptエントリのパーティション・タイプがすべて0700（Microsoft basic data）となっている。
Linuxのswapやext4のパーティションは、本来8200や8300のはずなので、これを修正することとする。
修正前
$ sudo gdisk /dev/sda GPT fdisk (gdisk) version 1.0.3 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Command (? for help): p Disk /dev/sda: 1875385008 sectors, 894.3 GiB Model: CSSD-S6B960CG3VX Sector size (logical/physical): 512/512 bytes Disk identifier (GUID): 3B2E892C-236C-4501-BFCA-8408D7839C3B Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 1875384974 Partitions will be aligned on 2048-sector boundaries Total free space is 2122349 sectors (1.0 GiB) Number Start (sector) End (sector) Size Code Name 1 2048 534527 260.0 MiB EF00 EF 2 534528 567295 16.0 MiB 0C01 Mi 3 567296 168339455 80.0 GiB 0700 4 168339456 170377215 995.0 MiB 0700 5 170377216 187154431 8.0 GiB 0700 Basic data partition 6 187154432 271040511 40.0 GiB 0700 Basic data partition 7 271040512 354926591 40.0 GiB 0700 Basic data partition 8 354926592 438812671 40.0 GiB 0700 Basic data partition 9 438812672 480755711 20.0 GiB 0700 Basic data partition 10 480755712 963100671 230.0 GiB 0700 Basic data partition 11 963100672 1445445631 230.0 GiB 0700 Basic data partition 12 1445445632 1873264639 204.0 GiB 8300 Basic data partition
修正作業
Command (? for help): t Partition number (1-12): 6 Current type is 'Microsoft basic data' Hex code or GUID (L to show codes, Enter = 8300): 8300 Changed type of partition to 'Linux filesystem' Command (? for help): t Partition number (1-12): 12 Current type is 'Linux filesystem' Hex code or GUID (L to show codes, Enter = 8300): 8300 Changed type of partition to 'Linux filesystem' Command (? for help): t Partition number (1-12): 5 Current type is 'Microsoft basic data' Hex code or GUID (L to show codes, Enter = 8300): 8200 Changed type of partition to 'Linux swap'
修正後
Command (? for help): p Disk /dev/sda: 1875385008 sectors, 894.3 GiB Model: CSSD-S6B960CG3VX Sector size (logical/physical): 512/512 bytes Disk identifier (GUID): 3B2E892C-236C-4501-BFCA-8408D7839C3B Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 1875384974 Partitions will be aligned on 2048-sector boundaries Total free space is 2122349 sectors (1.0 GiB) Number Start (sector) End (sector) Size Code Name 1 2048 534527 260.0 MiB EF00 EF 2 534528 567295 16.0 MiB 0C01 Mi 3 567296 168339455 80.0 GiB 0700 4 168339456 170377215 995.0 MiB 0700 5 170377216 187154431 8.0 GiB 8200 Basic data partition 6 187154432 271040511 40.0 GiB 8300 Basic data partition 7 271040512 354926591 40.0 GiB 0700 Basic data partition 8 354926592 438812671 40.0 GiB 0700 Basic data partition 9 438812672 480755711 20.0 GiB 0700 Basic data partition 10 480755712 963100671 230.0 GiB 0700 Basic data partition 11 963100672 1445445631 230.0 GiB 0700 Basic data partition 12 1445445632 1873264639 204.0 GiB 8300 Basic data partition
$ sudo fdisk -l /dev/sda ディスク /dev/sda: 894.3 GiB, 960197124096 バイト, 1875385008 セクタ 単位: セクタ (1 * 512 = 512 バイト) セクタサイズ (論理 / 物理): 512 バイト / 512 バイト I/O サイズ (最小 / 推奨): 512 バイト / 512 バイト ディスクラベルのタイプ: gpt ディスク識別子: 3B2E892C-236C-4501-BFCA-8408D7839C3B デバイス 開始位置 最後から セクタ サイズ タイプ /dev/sda1 2048 534527 532480 260M EFI システム /dev/sda2 534528 567295 32768 16M Microsoft 予約領域 /dev/sda3 567296 168339455 167772160 80G Microsoft 基本データ /dev/sda4 168339456 170377215 2037760 995M Microsoft 基本データ /dev/sda5 170377216 187154431 16777216 8G Linux スワップ /dev/sda6 187154432 271040511 83886080 40G Linux ファイルシステム /dev/sda7 271040512 354926591 83886080 40G Microsoft 基本データ /dev/sda8 354926592 438812671 83886080 40G Microsoft 基本データ /dev/sda9 438812672 480755711 41943040 20G Microsoft 基本データ /dev/sda10 480755712 963100671 482344960 230G Microsoft 基本データ /dev/sda11 963100672 1445445631 482344960 230G Microsoft 基本データ /dev/sda12 1445445632 1873264639 427819008 204G Linux ファイルシステム
パーティション名について
WindowsやLinuxではあまり用いられない「パーティション名」は、変更してもしなくてもよいようだ。
$ sudo gdisk /dev/sda GPT fdisk (gdisk) version 1.0.3 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Command (? for help): c Partition number (1-12): 5 Enter name: Linux swap Command (? for help): c Partition number (1-12): 6 Enter name: Linux filesystem Command (? for help): c Partition number (1-12): 12 Enter name: Linux filesystem Command (? for help): p Disk /dev/sda: 1875385008 sectors, 894.3 GiB Model: CSSD-S6B960CG3VX Sector size (logical/physical): 512/512 bytes Disk identifier (GUID): 3B2E892C-236C-4501-BFCA-8408D7839C3B Partition table holds up to 128 entries Main partition table begins at sector 2 and ends at sector 33 First usable sector is 34, last usable sector is 1875384974 Partitions will be aligned on 2048-sector boundaries Total free space is 2122349 sectors (1.0 GiB) Number Start (sector) End (sector) Size Code Name 1 2048 534527 260.0 MiB EF00 EF 2 534528 567295 16.0 MiB 0C01 Mi 3 567296 168339455 80.0 GiB 0700 4 168339456 170377215 995.0 MiB 0700 5 170377216 187154431 8.0 GiB 8200 Linux swap 6 187154432 271040511 40.0 GiB 8300 Linux filesystem 7 271040512 354926591 40.0 GiB 0700 Basic data partition 8 354926592 438812671 40.0 GiB 0700 Basic data partition 9 438812672 480755711 20.0 GiB 0700 Basic data partition 10 480755712 963100671 230.0 GiB 0700 Basic data partition 11 963100672 1445445631 230.0 GiB 0700 Basic data partition 12 1445445632 1873264639 204.0 GiB 8300 Linux filesystem
参考資料
パーティション・タイプの一覧はこちら
Command (? for help): t Partition number (1-12): 6 Current type is 'Linux filesystem' Hex code or GUID (L to show codes, Enter = 8300): L 0700 Microsoft basic data 0c01 Microsoft reserved 2700 Windows RE 3000 ONIE boot 3001 ONIE config 3900 Plan 9 4100 PowerPC PReP boot 4200 Windows LDM data 4201 Windows LDM metadata 4202 Windows Storage Spac 7501 IBM GPFS 7f00 ChromeOS kernel 7f01 ChromeOS root 7f02 ChromeOS reserved 8200 Linux swap 8300 Linux filesystem 8301 Linux reserved 8302 Linux /home 8303 Linux x86 root (/) 8304 Linux x86-64 root (/ 8305 Linux ARM64 root (/) 8306 Linux /srv 8307 Linux ARM32 root (/) 8400 Intel Rapid Start 8e00 Linux LVM a000 Android bootloader a001 Android bootloader 2 a002 Android boot a003 Android recovery a004 Android misc a005 Android metadata a006 Android system a007 Android cache a008 Android data a009 Android persistent a00a Android factory a00b Android fastboot/ter a00c Android OEM a500 FreeBSD disklabel a501 FreeBSD boot a502 FreeBSD swap a503 FreeBSD UFS a504 FreeBSD ZFS a505 FreeBSD Vinum/RAID a580 Midnight BSD data a581 Midnight BSD boot a582 Midnight BSD swap a583 Midnight BSD UFS a584 Midnight BSD ZFS a585 Midnight BSD Vinum a600 OpenBSD disklabel a800 Apple UFS a901 NetBSD swap a902 NetBSD FFS a903 NetBSD LFS a904 NetBSD concatenated a905 NetBSD encrypted a906 NetBSD RAID ab00 Recovery HD af00 Apple HFS/HFS+ af01 Apple RAID af02 Apple RAID offline af03 Apple label Press thekey to see more codes:
