topic Re: increase partition in Operating System - Linux

increase partition

Fadia Almarei — Tue, 08 Feb 2005 02:05:16 GMT

Dear All
i have redhat9 linux server,I want to increase the one of my partition ,kindly send me a deeply detail to increse my partition.
BR,
Fadia

Re: increase partition

Vitaly Karasik_1 — Tue, 08 Feb 2005 08:49:33 GMT

Unfortunately, there is no way for increasing size on-the-fly;
you should create new bigger partition and move all data.

Re: increase partition

Fadia Almarei — Tue, 08 Feb 2005 08:53:45 GMT

so why there is a parted command and resize command

Re: increase partition

Bruce Copeland — Tue, 08 Feb 2005 10:03:00 GMT

You can use parted to do this if you have an unused (or partially used) partition next to the one you want to increase. This is reasonably safe if it is an unused partition AFTER the one you want to increase. It is somewhat dangerous in all other cases because it means parted has to move a lot of data around on one (or more) partition(s).

Bruce

Re: increase partition

dirk dierickx — Wed, 09 Feb 2005 03:31:48 GMT

is there any chance you are using LVM? then you can also extend your filesystems fairly simple.

Re: increase partition

Manuel Wolfshant — Wed, 09 Feb 2005 05:43:56 GMT

As Vitaly has said, linux does not really support resize-on-the-fly. You can increase the size of a partition using parted, assuming you have free space after it, but you will almost certainly have problems when trying to use the extra [previoulsy unformated] space.
Do not even think of using the windows version of Partition Magic. So far I have never met anyone who used that tool on linux partitions and still have valid data after that.
The recommended solution is to backup your data, repartition the disk (for instance delete a partition adjacent to the one you want to increase, as well as that one and than create a single larger partition) and after formatting the new partition, restore the data. One candidate for delete & reformat could be the swap partition.

Re: increase partition

Rick Garland — Wed, 09 Feb 2005 13:27:42 GMT

If you have LVM on the partition, you can unmount the partition and issue the commands such as lvextend and fsextend.

Without LVM, the partitions are static and you will need to do some moving of data or create a new partition or (at worse) reload the OS making the partition larger.