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====== Extending RAM via file SWAP ======
{{INLINETOC 2 4 }} 
===== Introduction =====

There are some applications and network situations that may require the need for more RAM, like DLNA file indexing, Tor or disk checks. There are a couple of options of upgrading RAM, via soldering or using a SWAP partition on a USB thumb drive. This how-to describes installing SWAP on a USB thumb drive. This method is a bit slower but also more convenient. Your router will need a USB port like the TP-Link TL-WR1043ND v1-1.8 

This feature only works with gargoyle firmware 1.5.2 and above

The SWAP partition should automatically mount after plugging the right media into router USB port. You may need to reboot your router or run

example
<shell>
mkswap /dev/sda2
</shell>

change //sda2// to suite your SWAP partition

==== Tor ====

If the SWAP partition provides enough memory Tor will be enabled.

If Tor is enabled without enough memory the router crashes.

===== Setup =====

Select a suitable USB pen/thumb/memory-stick drive.

The USB drive needs to be formatted with a Linux SWAP partition and I would suggest he rest of the drive formatted FAT32 for data storage.

There are a few software format options

  * Gparted (GUI)
  * Acronis Disk director (GUI)
  * Native linux - Fdisk (CLI)

==== Acronis Disk director ====

Formatting USB drive using Acronis Disk director

In this example with a 4Gig pen drive all partitions were wiped first

{{:swap1.png|}}

Create a new volume

{{:swap2.png|}}

Select free space

{{:swap3.png|}}

Enter required volume size and select Linux swap

{{:swap4.png|}}

Swap partition now created

{{:swap5.png|}}

With the remainder of the disk format Fat32 for file storage

{{:swap6.png|}}

{{:swap7.png|}}

Commit changes 

{{:swap8.png|}}

{{:swap9.png|}}

Disk formatted and ready to use

{{:swap10.png|}}

plug your USB drive in and it should auto load

{{:swap11.png|}}
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