sed s/\#Alias[[:space:]]\/phpsys/Alias[[:space:]]\/phpsys/g  cdrom/packages/apache/default.vhost> /etc/apache2/sites-available/default

sed: -e expression n°1, caractère 28: option inconnue pour `s'

fichier default.vhost
---------------------

NameVirtualHost *
<VirtualHost *>
	ServerAdmin $POSTMASTER
	
	DocumentRoot /usr/share/squirrelmail/
	<Directory />
		Options FollowSymLinks
		AllowOverride None
	</Directory>
	<Directory /var/www/>
		Options Indexes FollowSymLinks MultiViews
		AllowOverride None
		Order allow,deny
		allow from all
		# This directive allows us to have apache2's default start page
                # in /apache2-default/, but still have / go to the right place
		# RedirectMatch ^/$ /apache2-default/
	</Directory>

	ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
	<Directory "/usr/lib/cgi-bin">
		AllowOverride None
		Options ExecCGI -MultiViews +SymLinksIfOwnerMatch
		Order allow,deny
		Allow from all
	</Directory>

	ErrorLog /var/log/apache2/error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog /var/log/apache2/access.log combined
	ServerSignature On

#Alias /phpsysinfo/ "/var/www/phpsysinfo/"
#Alias /mrtg/ "/var/www/mrtg/"
#Alias /cacti/ "/var/www/cacti/"
</VirtualHost>