[CentOS] Command line partition manipulation

Plant, Dean dean.plant at roke.co.uk
Fri Aug 8 13:07:39 UTC 2008


I want to write a script to automatically modify the partition table

I am starting with 3 partitions like this

# parted /dev/sda print

Model: VMware, VMware Virtual S (scsi)
Disk /dev/sda: 10.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags
 1      32.3kB  107MB   107MB   primary  ext3         boot
 2      107MB   4828MB  4721MB  primary  ext3
 3      4828MB  9023MB  4195MB  primary               lvm

And I want to remove partitions 2 & 3 and recreate 2 from the end of 1
to the end of the disk i.e. all the free space.

Removing 2 and 3 is easy.

# parted /dev/sda rm 3
# parted /dev/sda rm 2 

# parted /dev/sda print

Model: VMware, VMware Virtual S (scsi)
Disk /dev/sda: 10.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End    Size   Type     File system  Flags
 1      32.3kB  107MB  107MB  primary  ext3         boot


Is there a way to use a non-interactive command to create the new 2nd
partition in the free space?

Thanks

Dean



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