fallocate: fallocate failed: Text file busy in ubuntu OS

fallocate: fallocate failed: Text file busy in ubuntu OS

swapoff -a turns off swap usage. You were trying to allocate 15G to /swapfile,
but you can’t do that if it’s in use.
You do a swapoff -a, fallocate (you may have to delete the current /swapfile first), mkswap /swapfile, then swapon -a.

swapoff -a
swapon -a

sudo fallocate -l 1G /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

 

Cheers

 

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Sample Virtual Host with PHP Setting For Site Available At Nginx

For /etc/nginx/site-availables/default

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    root /var/www/html;
    index index.php index.html index.htm index.nginx-debian.html;

    server_name localhost;

    location / {
        try_files $uri $uri/ =404;
    }

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.0-fpm.sock;
    }

    location ~ /\.ht {
        deny all;
    }
}

=======================================================

For custom virtual host
/etc/nginx/site-availables/custom_site


server {
    listen 8088;
    listen [::]:8088;

    root /var/www/custom_site/public;
    index index.php index.html index.htm;

    server_name localhost;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location ~ \.php$ {
        try_files $uri /index.php =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

=======================================================