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My USB's 16 GB, but I only get to use 4 GB in persistence file. Any way to increase it?

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1 Answer 1

up vote 4 down vote accepted

Take a look at http://www.pendrivelinux.com/create-a-larger-than-4gb-casper-partition/. The tutorial is for an older version of Ubuntu but works fine for 10.10 and 11.04.

The reason why a separate partition must be created is because the USB creator only makes one partition by default (FAT32 filesystem). Onto that partition it copies the CD or ISO contents and creates a persistence file (ext2 formated) called casper-rw. Since FAT32 can't hold larger then 4GB files the persistence file can't be any larger then 4GB.

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Can't we increase the first partition instead of making a new one? –  Oxwivi May 14 '11 at 17:23
    
The USB creator only makes one partition by default (FAT32 filesystem). Onto that partition on copies the CD or ISO contents and creates a persistence file (ext2 formated) called casper-rw. Since FAT32 can't hold larger then 4GB files the persistence file can't be any larger the 4GB. So that's why a separate partition must be created. –  kicsyromy May 22 '11 at 7:54
    
Edit the answer and add in the bit about why I can't increase the size of the persistence file. –  Oxwivi May 23 '11 at 13:47
    
Can it be any other FS than ext2? –  Oxwivi Jun 10 '11 at 19:56

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