Remove "target" occurences in future fstab file

debian/chroot.install

@@ -142,6 +142,7 @@ if [ "${manage_btrfs}" -eq 0 ]; then
 
 	#### root
 	grep "btrfs" /etc/mtab >> /tmp/target.fstab
+
 else  ### Or for ext4, create mountpoint and mount LV
 	#### root
 	printf '%b\n' "/dev/mapper/${vgname}-root /           ext4 defaults                   0 0" >> /tmp/target.fstab
@@ -172,6 +173,10 @@ else  ### Or for ext4, create mountpoint and mount LV
 	printf '%b\n' "/dev/mapper/${vgname}-var  /var        ext4 defaults                   0 0" >> /tmp/target.fstab
 fi
 
+### Ensure to remove any occurence to /target mountpoint
+sed -i 's;target/;;' /tmp/target.fstab
+sed -i 's;target;;' /tmp/target.fstab
+
 if [ "${manage_extra_lv}" -eq 0 ]; then
 	### Extra bkp LV
 	mkdir -p -- /target/srv/backup