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Old 08-31-2013, 04:06 PM   #1
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Using fdisk or parted, is there a way to split a partition easily?

So I have a partition table that looks similar to the following:

 Name | Flags | Part Type |   ID    |[label]| Size   
 sda1 |  Boot |  Primary  |   83    |       | 38913.80
 sda2 |       |  Primary  |   82    |       | 1093.97
I'm having two issues: fdisk shows the Partition IDs at sda1 = 83 and sda2 = 82 but cfdisk shows FS Type as sda1 = "swap" and sda2 = "Linux swap" so I don't know what's up with that.

Main thing though, I want to split sda1 to have a / partition and a /home partition.

Anyone have any ideas on either of those things?
Old 08-31-2013, 10:07 PM   #2
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You do not have to put /home on a separate partition unless you wish to.

It is generally quite safe to install the entire Linux file structure to a single partition. On my primary computer, I do have /home as a separate partition; if something goes wrong forcing me to reinstall, the data in /home will be protected. Also, in case I wish to put a different distro on that machine, data in /home will be protected. But I didn't start doing that till I had been using Linux for six years and did not have any issues--if I reinstalled or upgraded, I just backed up essential data to a different machine.

In olden times, it was common to /var on a separate partition, in case log files grew out of control, but, with modern large HDDs, that's no longer an issue, except possibly in data centers, in the enterprise, and the like.

What is the output of

fdisk -l
Going back to your original question, you can't actually "split" a partition, but you can use Parted to resize a partition to a smaller size, then use the newly crated empty space to create a new partition. Back up any crucial data first, because, even though this usually works just fine, whenever you mess with partitions, there is a change that something would go wrong.

Last edited by frankbell; 08-31-2013 at 10:13 PM.
Old 09-03-2013, 06:26 PM   #3
Registered: Aug 2013
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Sorry for the delay.

I have installed linux systems to a single partition before, but this time I was wanting to try splitting it up, just to see what benefit's or downsides there may be.

fdisk -l outputs the table I posted above, only also showing the starting and ending blocks, and lists them as Linux and Linux swap respectively. My concern was why it showed up as two different ID/System types between the two different tools.

Thanks for the clarification regarding splitting. That's how I assumed it would have to work, but wasn't sure.


fdisk, parted, partition table, partitions

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