diff --git a/data/grid5000/sites/lyon/environments/etch-x64-base-1.0.json b/data/grid5000/sites/lyon/environments/etch-x64-base-1.0.json
new file mode 100644
index 0000000000000000000000000000000000000000..4b24f48b365023074c2ec2de1f4f60234e51bcca
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/etch-x64-base-1.0.json
@@ -0,0 +1,56 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    },
+    {
+      "login": "g5k",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version etch for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "adcd603db66d9e3da98926174f7d69aa",
+    "path": "\/grid5000\/images\/etch-x64-base-1.0.tgz"
+  },
+  "kernel": "2.6.18-6-amd64",
+  "max_open_files": 8192,
+  "services": [
+
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "etch-x64-base-1.0",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/etch-x64-base-1.1.json b/data/grid5000/sites/lyon/environments/etch-x64-base-1.1.json
new file mode 100644
index 0000000000000000000000000000000000000000..339dc8294f6df6a4126facbe76a1c70bbd3862ab
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/etch-x64-base-1.1.json
@@ -0,0 +1,56 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    },
+    {
+      "login": "g5k",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version etch for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "457cc632376c2c4cefd975b36bf65072",
+    "path": "\/grid5000\/images\/etch-x64-base-1.1.tgz"
+  },
+  "kernel": "2.6.18-6-amd64",
+  "max_open_files": 8192,
+  "services": [
+
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "etch-x64-base-1.1",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/etch-x64-big-1.0.json b/data/grid5000/sites/lyon/environments/etch-x64-big-1.0.json
new file mode 100644
index 0000000000000000000000000000000000000000..3e02e4f042b531e717df1bfb863ca2c5a1f49f66
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/etch-x64-big-1.0.json
@@ -0,0 +1,53 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version etch for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "5ddf6e898c11846dfb3eb9b2def2d2de",
+    "path": "\/grid5000\/images\/etch-x64-big-1.0.tgz"
+  },
+  "kernel": "2.6.18-6-amd64",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "etch-x64-big-1.0",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/etch-x64-big-1.1.json b/data/grid5000/sites/lyon/environments/etch-x64-big-1.1.json
new file mode 100644
index 0000000000000000000000000000000000000000..e7f9762f3c6dfaa794a43058101f475a4ffb0631
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/etch-x64-big-1.1.json
@@ -0,0 +1,53 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version etch for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "6c971c97eb2f62c056e343cbe9f4a71d",
+    "path": "\/grid5000\/images\/etch-x64-big-1.1.tgz"
+  },
+  "kernel": "2.6.18-6-amd64",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "etch-x64-big-1.1",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/etch-x64-nfs-1.0.json b/data/grid5000/sites/lyon/environments/etch-x64-nfs-1.0.json
new file mode 100644
index 0000000000000000000000000000000000000000..6b04493c020564a61f90b064adc7b953ed0d5fa0
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/etch-x64-nfs-1.0.json
@@ -0,0 +1,53 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version etch for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "c76462698ae0480aaa48c9b707b96da5",
+    "path": "\/grid5000\/images\/etch-x64-nfs-1.0.tgz"
+  },
+  "kernel": "2.6.18-6-amd64",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "etch-x64-nfs-1.0",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/etch-x64-nfs-1.1.json b/data/grid5000/sites/lyon/environments/etch-x64-nfs-1.1.json
new file mode 100644
index 0000000000000000000000000000000000000000..c2544bdfdbe9aabb7e2eb52821e6a9bab57f268d
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/etch-x64-nfs-1.1.json
@@ -0,0 +1,53 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version etch for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "303740c75b7a74c94bb5909d3aa8ac4f",
+    "path": "\/grid5000\/images\/etch-x64-nfs-1.1.tgz"
+  },
+  "kernel": "2.6.18-6-amd64",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "etch-x64-nfs-1.1",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/lenny-x64-base-0.9.json b/data/grid5000/sites/lyon/environments/lenny-x64-base-0.9.json
new file mode 100644
index 0000000000000000000000000000000000000000..7b4b3f5eed69611ec881e2ba0842fc2e4f203434
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/lenny-x64-base-0.9.json
@@ -0,0 +1,56 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    },
+    {
+      "login": "g5k",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version lenny for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "c1913bf8de22f52ef213151c25208a4a",
+    "path": "\/grid5000\/images\/lenny-x64-base-0.9.tgz"
+  },
+  "kernel": "2.6.24.3",
+  "max_open_files": 8192,
+  "services": [
+
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "lenny-x64-base-0.9",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/lenny-x64-big-0.9.json b/data/grid5000/sites/lyon/environments/lenny-x64-big-0.9.json
new file mode 100644
index 0000000000000000000000000000000000000000..fe619afb192c038a8d2c2961800a648f83100e83
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/lenny-x64-big-0.9.json
@@ -0,0 +1,53 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version lenny for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "ead20673233d0b9162ba56481d596add",
+    "path": "\/grid5000\/images\/lenny-x64-big-0.9.tgz"
+  },
+  "kernel": "2.6.24.3",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "lenny-x64-big-0.9",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/lenny-x64-nfs-0.9.json b/data/grid5000/sites/lyon/environments/lenny-x64-nfs-0.9.json
new file mode 100644
index 0000000000000000000000000000000000000000..c58fd91f5455fda0ac6be1a391b25ee8013a666f
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/lenny-x64-nfs-0.9.json
@@ -0,0 +1,53 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version lenny for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "7975882dec6bde601346c0152e161638",
+    "path": "\/grid5000\/images\/lenny-x64-nfs-0.9.tgz"
+  },
+  "kernel": "2.6.24.3",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "lenny-x64-nfs-0.9",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM x3455,IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100",
+    "Altix Xe 310"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/sid-x64-base-1.1.json b/data/grid5000/sites/lyon/environments/sid-x64-base-1.1.json
new file mode 100644
index 0000000000000000000000000000000000000000..d1783381f04ea04a1bd091141b5469f7e5f806d1
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/sid-x64-base-1.1.json
@@ -0,0 +1,56 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    },
+    {
+      "login": "g5k",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version sid for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "756ccc2096e9feacde85500d33683dba",
+    "path": "\/grid5000\/images\/sid-x64-base-1.1.tgz"
+  },
+  "kernel": "2.6.24",
+  "max_open_files": 8192,
+  "services": [
+
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "sid-x64-base-1.1",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "HP DL385G2",
+    "IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/sid-x64-big-1.1.json b/data/grid5000/sites/lyon/environments/sid-x64-big-1.1.json
new file mode 100644
index 0000000000000000000000000000000000000000..b2fdd835a49a016201125cd89d66b1854aa32a18
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/sid-x64-big-1.1.json
@@ -0,0 +1,52 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version sid for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "d514bee74404ed5f64ff41b2f60c4f7f",
+    "path": "\/grid5000\/images\/sid-x64-big-1.1.tgz"
+  },
+  "kernel": "2.6.24.3",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "sid-x64-big-1.1",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/sid-x64-nfs-1.0.json b/data/grid5000/sites/lyon/environments/sid-x64-nfs-1.0.json
new file mode 100644
index 0000000000000000000000000000000000000000..aaa01947429caedbc21854d91f6b010cb4c89e92
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/sid-x64-nfs-1.0.json
@@ -0,0 +1,52 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version sid for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "6e004d1ac25e86a1dadc09d28f968eb5",
+    "path": "\/home\/nancy\/xdelaruelle\/images\/sid-x64-nfs-1.0.tgz"
+  },
+  "kernel": "2.6.18-4",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "sid-x64-nfs-1.0",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/environments/sid-x64-nfs-1.1.json b/data/grid5000/sites/lyon/environments/sid-x64-nfs-1.1.json
new file mode 100644
index 0000000000000000000000000000000000000000..fe3d0e4a93e51129d1593c73e9cfa27d72176cc6
--- /dev/null
+++ b/data/grid5000/sites/lyon/environments/sid-x64-nfs-1.1.json
@@ -0,0 +1,52 @@
+{
+  "accounts": [
+    {
+      "login": "root",
+      "password": "grid5000"
+    }
+  ],
+  "applications": [
+    "Vim",
+    "XEmacs",
+    "JED",
+    "nano",
+    "JOE",
+    "Perl",
+    "Python",
+    "Ruby"
+  ],
+  "based_on": "Debian version sid for amd64",
+  "consoles": [
+    {
+      "bps": 34800,
+      "port": "ttyS0"
+    }
+  ],
+  "file": {
+    "md5": "4218f5a9bfea4a759fa684db1ec4d89c",
+    "path": "\/grid5000\/images\/sid-x64-nfs-1.1.tgz"
+  },
+  "kernel": "2.6.24.3",
+  "max_open_files": 8192,
+  "services": [
+    "ldap",
+    "nfs"
+  ],
+  "state": "stable",
+  "tcp_bandwidth": 1000000000,
+  "type": "environment",
+  "uid": "sid-x64-nfs-1.1",
+  "valid_on": [
+    "Dell PE1855",
+    "Dell PE1950",
+    "HP DL140G3",
+    "HP DL145G2",
+    "IBM e325",
+    "IBM e326",
+    "IBM e326m",
+    "Sun V20z",
+    "Sun X2200 M2",
+    "Sun X4100"
+  ],
+  "x11_forwarding": true
+}
\ No newline at end of file