How to extend disk size root partition on Suse Linux 11 SP 4
Check the disk size
bpmdb:~ # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 146G 140G 5.2G 97% /
udev 16G 1.2M 16G 1% /dev
tmpfs 16G 1.3M 16G 1% /dev/shm
/dev/sr0 3.3G 3.3G 0 100% /mountdisk
/dev/sr0 3.3G 3.3G 0 100% /cd0
/dev/sr0 3.3G 3.3G 0 100% /mnt/cdrom
/dev/sr1 5.1G 5.1G 0 100% /cd1
bpmdb:~ #
bpmdb:~ # fdisk -l
Disk /dev/sda: 161.1 GB, 161061273600 bytes
255 heads, 63 sectors/track, 19581 cylinders, total 314572800 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 314572799 154973184 83 Linux
bpmdb:~ #
Check the block disk
bpmdb:~ # lsblk
NAME MAJ:MIN RM SIZE RO MOUNTPOINT
sda 8:0 0 150G 0
├─sda1 8:1 0 403.5K 0
├─sda2 8:2 0 2G 0 [SWAP]
└─sda3 8:3 0 147.8G 0 /
sr0 11:0 1 3.2G 0 /mountdisk
sr1 11:1 1 5G 0 /cd1
bpmdb:~ #
Extend the phisical disk size
Rescan the disk
Resize the disk
Rescan the disk
bpmdb:~ # echo 1 > /sys/block/sda/device/rescan
bpmdb:~ #
bpmdb:~ # fdisk -l
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 314572799 154973184 83 Linux
bpmdb:~ #
Check the disk list
bpmdb:~ # fdisk -l
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 314572799 154973184 83 Linux
inaportnetbpmdb:~ #
inaportnetbpmdb:~ # fdisk /dev/sda
Command (m for help): m
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):
Command (m for help): p
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 314572799 154973184 83 Linux
Command (m for help):
Command (m for help): d
Partition number (1-4): 3
Command (m for help): p
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4, default 3): 3
First sector (2855-524287999, default 2855): 4626432
Last sector, +sectors or +size{K,M,G} (4626432-524287999, default 524287999):
Using default value 524287999
Command (m for help): p
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 524287999 259830784 83 Linux
Command (m for help): t
Partition number (1-4): 3
Hex code (type L to list codes): L
0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris
1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT-
2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT-
3 XENIX usr 3c PartitionMagic 84 OS/2 hidden C: c6 DRDOS/sec (FAT-
4 FAT16 <32M 40 Venix 80286 85 Linux extended c7 Syrinx
5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FS data
6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS / .
7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de Dell Utility
8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt
9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access
a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O
b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor
c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi eb BeOS fs
e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT
f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/
10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC b
11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor
12 Compaq diagnost 5c Priam Edisk a9 NetBSD f4 SpeedStor
14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f2 DOS secondary
16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS
17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE
18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto
1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fe LANstep
1c Hidden W95 FAT3 75 PC/IX be Solaris boot ff BBT
1e Hidden W95 FAT1 80 Old Minix
Hex code (type L to list codes): 83
Command (m for help): p
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 524287999 259830784 83 Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
bpmdb:~ #
bpmdb:~ # partprobe
Error: Partition(s) 3 on /dev/sda have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes.
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
Warning: The driver descriptor says the physical block size is 512 bytes, but Linux says it is 2048 bytes.
Warning: Unable to open /dev/sr1 read-write (Read-only file system). /dev/sr1 has been opened read-only.
Warning: Unable to open /dev/sr1 read-write (Read-only file system). /dev/sr1 has been opened read-only.
bpmdb:~ #
Reboot the machine
bpmdb:~ # resize2fs /dev/sda3
resize2fs 1.41.9 (22-Aug-2009)
Filesystem at /dev/sda3 is mounted on /; on-line resizing required
old desc_blocks = 10, new_desc_blocks = 16
Performing an on-line resize of /dev/sda3 to 64957696 (4k) blocks.
The filesystem on /dev/sda3 is now 64957696 blocks long.
bpmdb:~ # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 244G 140G 103G 58% /
udev 16G 1.2M 16G 1% /dev
tmpfs 16G 1.9M 16G 1% /dev/shm
bpmdb:~ #
bpmdb:~ # fdisk -l
Disk /dev/sda: 268.4 GB, 268435456000 bytes
255 heads, 63 sectors/track, 32635 cylinders, total 524288000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd4cf0800
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2854 403+ 41 PPC PReP Boot
/dev/sda2 417792 4626431 2104320 82 Linux swap / Solaris
/dev/sda3 4626432 524287999 259830784 83 Linux
bpmdb:~ #
bpmdb:~ # lsblk
NAME MAJ:MIN RM SIZE RO MOUNTPOINT
sda 8:0 0 250G 0
├─sda1 8:1 0 403.5K 0
├─sda2 8:2 0 2G 0 [SWAP]
└─sda3 8:3 0 247.8G 0 /
sr0 11:0 1 3.2G 0
sr1 11:1 1 5G 0
bpmdb:~ #
bpmdb:~ #
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