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I've just got a new laptop, and am working on getting it dual booting with Ubuntu (I do this all the time, so figured it wouldn't be a problem).

All seemed well, but the HDD came partitioned into four primary partitions. Given you can't have more than four primary partitions, how do I get around this? I shrank the partition Windows was on (which used to be 895GBs) to 445GBs, leaving 440 GBs of unallocated space which I was planning on using for Ubuntu, but now I can't partition it. Can you "convert" a primary partition into an extended partition? I have no idea why Lenovo felt the need to partition their HDD into four separate blocks anyway, but there you go..

Any thoughts greatly appreciated.

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up vote 4 down vote accepted

By far the simplest solution is to delete one of the primary partitions and create an extended partition in its place (note that this will lose all the data in the partition). You can then create as many logical partitions as you want. I'd guess that one partition is for system rescue, one is for Windows boot, one is Windows itself, and one is empty for data. In this case, you could remove the data partition and create an extra logical NTFS partition during Ubuntu's installation, which Windows will pick up the next time it boots.

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So, that's what I ended up doing, because one of the partitions had stuff which it seems I could pull off and put in another partition, but WTF Lenovo? The partitions were; 1) Windows Recovery (SYSTEM_DRIVERS) 2) Windows 3) Lenovo Drivers and apps 4) Lenovo System Recovery (LENONO_PART) I moved everything off partition 3 and wiped it, "shrank" partion 2, which freed up about 570 GBs of space (550 + 20). –  Alex Aug 30 '12 at 4:09
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