How to set up a swap space on an existing Debian server

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T4B
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how can add swap for myvesta ?

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myVesta
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Since you can't do repartition of existing disk (in order to add swap partition), you can create swap inside an file:

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dd if=/dev/zero of=/swapfile1 bs=1024 count=1048576 # this is 1GB file
chown root:root /swapfile1
chmod 0600 /swapfile1
mkswap /swapfile1
swapon /swapfile1
echo "/swapfile1 none swap sw 0 0" >> /etc/fstab
free -m
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