Быстрый HowTo.
Более полное описание работы с LMV и утилитами смотрите тут>>>.
Есть новый физический диск /dev/sdb, который надо подключить отдельным разделом.
1. Создаём на диске новый раздел
# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xe8bae10a.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): m // выведем себе подсказку
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): n // n - создать новый раздел
Command action
e extended
p primary partition (1-4)
p // основной раздел
Partition number (1-4): 1 // номер раздела на диске, это первый
First cylinder (1-1044, default 1): // оставляем по-умолчанию, с первого цилиндра
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-1044, default 1044): +8000M // диск у нас Disk /dev/sdb: 8589 MB, устанавливаем раздел 8G
Command (m for help): t // далее зададим тип раздела, нам нужен Linux LVM
Selected partition 1
Hex code (type L to list codes): L
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 39 Plan 9 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 3c PartitionMagic 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 40 Venix 80286 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 41 PPC PReP Boot 85 Linux extended c7 Syrinx
5 Extended 42 SFS 86 NTFS volume set da Non-FS data
6 FAT16 4d QNX4.x 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS 4e QNX4.x 2nd part 88 Linux plaintext de Dell Utility
8 AIX 4f QNX4.x 3rd part 8e Linux LVM df BootIt
9 AIX bootable 50 OnTrack DM 93 Amoeba e1 DOS access
a OS/2 Boot Manag 51 OnTrack DM6 Aux 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 52 CP/M 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 53 OnTrack DM6 Aux a0 IBM Thinkpad hi eb BeOS fs
e W95 FAT16 (LBA) 54 OnTrackDM6 a5 FreeBSD ee GPT
f W95 Ext'd (LBA) 55 EZ-Drive a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 56 Golden Bow a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 5c Priam Edisk a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 61 SpeedStor a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 63 GNU HURD or Sys ab Darwin boot f2 DOS secondary
16 Hidden FAT16 64 Novell Netware af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 65 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 70 DiskSecure Mult b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 75 PC/IX bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 80 Old Minix be Solaris boot ff BBT
1e Hidden W95 FAT1
Hex code (type L to list codes): 8e // код Linux LVM - 8e
Changed system type of partition 1 to 8e (Linux LVM)
Command (m for help): w // записываем изменения на диск
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Проверяем:
# fdisk -l /dev/sdb Disk /dev/sdb: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x217118ba Device Boot Start End Blocks Id System /dev/sdb1 1 2610 20964793+ 8e Linux LVM
2. Инициализируем раздел
# pvcreate /dev/sdb1 Physical volume "/dev/sdb1" successfully created
Проверяем:
# pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name vg_mainhome PV Size 19.51 GiB / not usable 3.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 4994 Free PE 0 Allocated PE 4994 PV UUID M6Rqrd-DDVf-0crg-pXCx-tmgX-SylT-T6TGxG "/dev/sdb1" is a new physical volume of "19.99 GiB" --- NEW Physical volume --- PV Name /dev/sdb1 VG Name PV Size 19.99 GiB Allocatable NO PE Size 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID fbmaqp-LK9p-BNLb-65Nb-NMed-baq5-YITjq3
3. Создаём LVM раздел с именем repository
# vgcreate repository /dev/sdb1 Volume group "repository" successfully created
Проверяем:
# vgdisplay repository --- Volume group --- VG Name repository System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 1 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 19.99 GiB PE Size 4.00 MiB Total PE 5118 Alloc PE / Size 0 / 0 Free PE / Size 5118 / 19.99 GiB VG UUID ZWuShS-Dc0z-fRQW-Fmv3-1PUz-i4B2-OFf0Yb
3. Создаём логический раздел на этой группе томов (хотя он тут один)
# lvcreate --name repository --size 19G repository Logical volume "repository" created
Проверяем:
# lvdisplay /dev/repository/repository --- Logical volume --- LV Path /dev/repository/repository LV Name repository VG Name repository LV UUID AwCKQS-kHpY-4dmu-sB1f-7Glm-jCtV-my5tfz LV Write Access read/write LV Creation host, time cent_1, 2015-01-16 09:53:18 +0200 LV Status available # open 0 LV Size 19.00 GiB Current LE 4864 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2
4. Создаём файловую систему на новом разделе
# mkfs.ext4 /dev/repository/repository mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=4096 (log=2) ... Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done
Проверяем:
# blkid /dev/repository/repository /dev/repository/repository: UUID="92103a1a-790a-4732-9b25-e821ecf92dd1" TYPE="ext4"
5. Создаём каталог для монтирования
# mkdir /repository
6. Монтируем
# mount /dev/repository/repository /repository
Проверяем:
# mount /dev/mapper/vg_mainhome-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) /dev/sda1 on /boot type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) /dev/mapper/repository-repository on /repository type ext4 (rw)
# ls -l /repository/ total 16 drwx------ 2 root root 16384 Jan 16 09:54 lost+found
7. Редактируем fstab
Добавляем строку:
/dev/repository/repository /repository ext4 defaults 0 0
7. Перезапускаем машину
# reboot
После перезагрузки – проверяем:
# df -h /repository/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/repository-repository
19G 44M 18G 1% /repository
Готово.
