diff --git a/subiquity/models/installpath.py b/subiquity/models/installpath.py
index de73f791..d6e4174e 100644
--- a/subiquity/models/installpath.py
+++ b/subiquity/models/installpath.py
@@ -14,6 +14,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import logging
+import os
 
 
 log = logging.getLogger("subiquity.models.installpath")
@@ -30,7 +31,8 @@ class InstallpathModel(object):
     # update() is not run, upon selecting the default choice...
     curtin = {}
 
-    def __init__(self, sources=None):
+    def __init__(self, target, sources=None):
+        self.target = target
         self.cmdline_sources = sources
         if sources:
             self.path = 'cmdline'
@@ -58,6 +60,10 @@ class InstallpathModel(object):
 
     def update(self, results):
         self.curtin = {}
+
+        def t(path):
+            return os.path.join(self.target, path)
+
         if self.path == 'maas_region':
             self.curtin['debconf_selections'] = {
                 'maas-username': ('maas-region-controller maas/username '
@@ -69,8 +75,8 @@ class InstallpathModel(object):
                 # Maintainer scripts cache results, from config files, if they
                 # exist.  These shouldn't exist, since this was fixed in
                 # livecd-rootfs but remove these, just to be sure.
-                '900-maas': ['rm', '-f', '/target/etc/maas/rackd.conf'],
-                '901-maas': ['rm', '-f', '/target/etc/maas/region.conf'],
+                '900-maas': ['rm', '-f', t('etc/maas/rackd.conf')],
+                '901-maas': ['rm', '-f', t('etc/maas/region.conf')],
                 # All the crazy things are workarounds for maas maintainer
                 # scripts deficiencies see:
                 # LP: #1766209
@@ -92,34 +98,34 @@ class InstallpathModel(object):
                 # and invoke-rc.d --force to not faill and a running postgresql
                 # is needed, to change the role password and to create an admin
                 # user.
-                '904-maas': ['mount', '-o', 'bind', '/proc', '/target/proc'],
-                '905-maas': ['mount', '-o', 'bind', '/sys', '/target/sys'],
-                '906-maas': ['mount', '-o', 'bind', '/dev', '/target/dev'],
-                '907-maas': ['mount', '-o', 'bind', '/target/bin/true',
-                             '/target/usr/sbin/invoke-rc.d'],
-                '908-maas': ['chroot', '/target', 'sh', '-c',
+                '904-maas': ['mount', '-o', 'bind', '/proc', t('proc')],
+                '905-maas': ['mount', '-o', 'bind', '/sys', t('sys')],
+                '906-maas': ['mount', '-o', 'bind', '/dev', t('dev')],
+                '907-maas': ['mount', '-o', 'bind', t('bin/true'),
+                             t('usr/sbin/invoke-rc.d')],
+                '908-maas': ['chroot', self.target, 'sh', '-c',
                              'pg_ctlcluster --skip-systemctl-redirect '
                              '$(/bin/ls /var/lib/postgresql/) main start'],
                 # These are called like this, because reconfigure doesn't
                 # create nor change an admin user account, nor regens the
                 # semi-autogenerated maas-url
                 '909-maas':
-                    ['chroot', '/target', 'sh', '-c', (
+                    ['chroot', self.target, 'sh', '-c', (
                         'debconf -fnoninteractive -omaas-region-controller '
                         '/var/lib/dpkg/info/maas-region-controller.config '
                         'configure')],
                 '910-maas':
-                    ['chroot', '/target', 'sh', '-c', (
+                    ['chroot', self.target, 'sh', '-c', (
                         'debconf -fnoninteractive -omaas-region-controller '
                         '/var/lib/dpkg/info/maas-region-controller.postinst '
                         'configure')],
-                '911-maas': ['chroot', '/target', 'sh', '-c', (
+                '911-maas': ['chroot', self.target, 'sh', '-c', (
                         'pg_ctlcluster --skip-systemctl-redirect '
                         '$(/bin/ls /var/lib/postgresql/) main stop')],
-                '912-maas': ['umount', '/target/usr/sbin/invoke-rc.d'],
-                '913-maas': ['umount', '/target/dev'],
-                '914-maas': ['umount', '/target/sys'],
-                '915-maas': ['umount', '/target/proc'],
+                '912-maas': ['umount', t('usr/sbin/invoke-rc.d')],
+                '913-maas': ['umount', t('dev')],
+                '914-maas': ['umount', t('sys')],
+                '915-maas': ['umount', t('proc')],
             }
         elif self.path == 'maas_rack':
             self.curtin['debconf_selections'] = {
@@ -131,7 +137,7 @@ class InstallpathModel(object):
                                 'password %s' % results['secret']),
             }
             self.curtin['late_commands'] = {
-                '90-maas': ['rm', '-f', '/target/etc/maas/rackd.conf'],
+                '90-maas': ['rm', '-f', t('etc/maas/rackd.conf')],
                 '91-maas': ['curtin', 'in-target', '--', 'maas-rack',
                             'config', '--init'],
                 # maas-rack-controller is broken, and does db_input & go on
diff --git a/subiquity/models/subiquity.py b/subiquity/models/subiquity.py
index 7b6dac3b..1e8561ce 100644
--- a/subiquity/models/subiquity.py
+++ b/subiquity/models/subiquity.py
@@ -54,7 +54,7 @@ class SubiquityModel:
             root = os.path.abspath(".subiquity")
         self.locale = LocaleModel(common['signal'])
         self.keyboard = KeyboardModel(root)
-        self.installpath = InstallpathModel(sources=common['opts'].sources)
+        self.installpath = InstallpathModel(target=self.target, sources=common['opts'].sources)
         self.network = NetworkModel(support_wlan=False)
         self.filesystem = FilesystemModel(common['prober'])
         self.identity = IdentityModel()