Expanding the size of Linux logical volumes with LVM
[root@TEST ~] # df-hl
[root@TEST ~] # fdisk-l
Disk / dev/sda: 53.7 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000af440
Device Boot Start End Blocks Id System
/ dev/sda1 * 2 501 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/ dev/sda2 502 51200 51915776 8e Linux LVM
Partition 2 does not end on cylinder boundary.
Disk / dev/sdb: 17.2 GB, 17179869184 bytes
64 heads, 32 sectors/track, 16384 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk / dev/sdc: 42.9 GB, 42949672960 bytes
64 heads, 32 sectors/track, 40960 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk / dev/mapper/vg_redhat-lv_root: 49.0 GB, 48997859328 bytes
255 heads, 63 sectors/track, 5956 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk / dev/mapper/vg_redhat-lv_swap: 4160 MB, 4160749568 bytes
255 heads, 63 sectors/track, 505 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
[root@TEST ~] # fdisk / dev/sdc
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x93ae6d58.
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): n
Command action
E extended
P primary partition (1-4)
P
Partition number (1-4): 1
First cylinder (1-40960, default 1):
Using default value 1
Last cylinder, + cylinders or + size {KMagne Mpeng} (1-40960, default 40960): + 40G
Value out of range.
Last cylinder, + cylinders or + size {KMagne Mpeng} (1-40960, default 40960): + 39G
Command (m for help): t
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
