DDWRT and Swap Files

### USB ###############################################################################################################################################

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# Instead of issuing USB related commands via script, the USB services for Flash Drives, etc. are enabled via the GUI

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### Swap File##########################################################################################################################################

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# A "raw" swap file must be initially configured

# The following is a BusyBox command that creates a file with the size dictated by the attributes (if is the source file, of is the output file, bs are the number of bytes to read at a time, count is the number of times to repeat the cycle)

# In the following example, a 256 MB file is created

# dd if=/dev/zero of=/tmp/mnt/sda_part2/SwapFile bs=1024 count=262144

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# To enable the OS / Router to use a swap file, the swap utilities need to be installed

# opkg install swap-utils: mkswap and swapon

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# The following command "formats" / prepares the RAW / Blank file as a swap file with the label SwapFile

# mkswap /tmp/mnt/sda_part2/SwapFile --label SwapFile

# The swapon command recommends the following

# chmod 600 /tmp/mnt/sda_part2/SwapFile

# Activates the swap file and makes it available to the OS

swapon /tmp/mnt/sda_part2/SwapFile

# Deactivates the swap file / turns it off

# swapoff /tmp/mnt/sda_part2/SwapFile

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# If the USB related services are installed via OPKG and controlled via the /opt/etc/init.d Directory, then there seems to be documentation that indicates the above can be controlled via the S30 USB service)

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