Linux Partitions of Disk, fdisk for Partitions in Linux, Ubuntu partitions

1.     Manage Partitions with fdisk

·        Use fdisk to create a new partition table

o   1st primary partition (100 MB)

o   2nd primary partition (1 GB)

o   3rd primary partition (4 GB)

·        Commit these changes

·        Reboot and install Linux on the new partition table, mounting them as:-

·        1st primary partition as /boot (reiserfs)

·        3rd primary partition as / (ext3)

sudo fdisk /dev/sda

delete all partitions 1 ,2 using d then press w to write changes

Press n to create a new partition and press p for primary then 1 for partition 1 and then press enter for default starting cylinders then +100M as required for partition 1.

Press n to create a new partition and press p for primary then 2 for partition 2 and then press enter for default starting cylinders then +1G as required for partition 2.

Press n to create a new partition and press p for primary then 3 for partition 3 and then press enter for default starting cylinders then +4G as required for partition 3.

press w for write changes

mount /dev/sda1 /boot; mount /dev/sda3 /;

reboot and install new linux and use the existing file system. And make changes in sda1 as file system reiserfs and mount point /boot; sd2 as file system ext3 and mount point /

then install ubnuntu; this will load new file systems and partition table.

2.     Create Partitions with fdisk

·        Using fdisk, create a new extended partition with all the remaining space in the HDD

·        Create a new logical partitions:-

o   1st logical partition (100 MB)

o   2nd logical partition (1 GB)

·        Commit these changes

·        Load the new partition table into the kernel by using partprobe utility

fdisk /dev/sda

type n for new partition; select e for extended partition and it will create new extended partition on rest of the space.

type n for new logical partition. it will make logical partition sd5 in sda4 extended partition. press enter for default starting cylinder and +100M for 100MB partition.

type n for new logical partition. it will make logical partition sda6 in sda4 extended partition. press enter for default starting cylinder and enter for allocating rest of space for this partition.

press w for commit changes

load partition table using sudo partprobe /dev/sda

3.     Create File Systems

·        From the command line, format the new partitions as:-

o   1st logical partition as reiserfs

o   2nd logical partition as ext2

·        From the command line, mount the new partitions as:-

·        1st logical partition as /moodle

·         2nd logical partition as /moodledata

mkfs –t reiserfs /dev/sda5 ; mkfs –t ext2 /dev/sda6

sudo mkdir /moodle; sudo mkdir /moodledata;

mount /dev/sda5 /moodle; mount /dev/sda6 /moodledata;