diff --git a/xCAT-server/share/xcat/netboot/ubuntu/genimage b/xCAT-server/share/xcat/netboot/ubuntu/genimage
index a825913b4..de9350a4f 100755
--- a/xCAT-server/share/xcat/netboot/ubuntu/genimage
+++ b/xCAT-server/share/xcat/netboot/ubuntu/genimage
@@ -270,7 +270,10 @@ unless ($onlyinitrd) {
         my $mirror = (defined $aptmirror[0] && length $aptmirror[0])
                    ? $aptmirror[0] : 'http://archive.ubuntu.com/ubuntu';
         (my $codename = $osver) =~ s/^ubuntu//;
-        $codename =~ s/\.\d+$//;                  # 24.04.4 -> 24.04
+        # Strip ONLY a trailing third component. A bare s/\.\d+$// also strips the minor from a
+        # two-part osvers (ubuntu26.04 -> "26"), which misses the %cn map below and reaches
+        # debootstrap as a bogus suite ("E: No such script: .../debootstrap/scripts/26").
+        $codename =~ s/^(\d+\.\d+)\.\d+$/$1/;   # 24.04.4 -> 24.04; 26.04 stays 26.04
         my %cn = ('24.04' => 'noble', '22.04' => 'jammy', '20.04' => 'focal',
                   '18.04' => 'bionic', '26.04' => 'resolute');
         $codename = $cn{$codename} if exists $cn{$codename};
diff --git a/xCAT/debian/control b/xCAT/debian/control
index 8a50d3941..742ea46c8 100644
--- a/xCAT/debian/control
+++ b/xCAT/debian/control
@@ -9,8 +9,8 @@ Homepage: https://xcat.org/
 
 Package: xcat
 Architecture: amd64 ppc64el
-Depends: ${perl:Depends}, goconserver(>= 0.3.3-snap000000000000), xcat-server (>= 2.13-snap000000000000), xcat-client (>= 2.13-snap000000000000), libdbd-sqlite3-perl, isc-dhcp-server | kea, apache2, nfs-kernel-server, libxml-parser-perl, rsync, tftpd-hpa, libnet-telnet-perl, xcat-genesis-scripts-amd64 (>= 2.13-snap000000000000)
-Recommends: bind9, net-tools, nmap, kea, tftp-hpa, ipmitool-xcat (>= 1.8.17-1), syslinux[any-amd64], libsys-virt-perl, syslinux-xcat, xnba-undi, elilo-xcat, xcat-buildkit (>= 2.13-snap000000000000), xcat-probe (>= 2.13-snap000000000000)
+Depends: ${perl:Depends}, goconserver(>= 0.3.3-snap000000000000), xcat-server (>= 2.13-snap000000000000), xcat-client (>= 2.13-snap000000000000), libdbd-sqlite3-perl, isc-dhcp-server | kea, bind9, apache2, nfs-kernel-server, libxml-parser-perl, rsync, tftpd-hpa, libnet-telnet-perl, xcat-genesis-scripts-amd64 (>= 2.13-snap000000000000)
+Recommends: net-tools, nmap, kea, tftp-hpa, ipmitool-xcat (>= 1.8.17-1), syslinux[any-amd64], libsys-virt-perl, syslinux-xcat, xnba-undi, elilo-xcat, xcat-buildkit (>= 2.13-snap000000000000), xcat-probe (>= 2.13-snap000000000000)
 Suggests: yaboot-xcat
 Description: Metapackage for a common, default xCAT setup
  xCAT is Extreme Cluster/Cloud Administration Toolkit. xCAT offers complete
diff --git a/xCATsn/debian/control b/xCATsn/debian/control
index 3a295e28b..9f841dded 100644
--- a/xCATsn/debian/control
+++ b/xCATsn/debian/control
@@ -8,8 +8,8 @@ Homepage: https://xcat.org/
 
 Package: xcatsn
 Architecture: amd64 ppc64el
-Depends: ${perl:Depends}, goconserver (>=0.3.3-snap000000000000), xcat-server (>= 2.13-snap000000000000), xcat-client (>= 2.13-snap000000000000), libdbd-sqlite3-perl, libxml-parser-perl, tftpd-hpa, libnet-telnet-perl, isc-dhcp-server | kea, apache2, nfs-kernel-server, xcat-genesis-scripts-amd64 (>= 2.13-snap000000000000)
-Recommends: bind9, net-tools, nmap, kea, tftp-hpa, ipmitool-xcat (>= 1.8.17-1), syslinux[any-amd64], libsys-virt-perl, syslinux-xcat, xnba-undi, elilo-xcat, xcat-buildkit (>= 2.13-snap000000000000), xcat-probe (>= 2.13-snap000000000000)
+Depends: ${perl:Depends}, goconserver (>=0.3.3-snap000000000000), xcat-server (>= 2.13-snap000000000000), xcat-client (>= 2.13-snap000000000000), libdbd-sqlite3-perl, libxml-parser-perl, tftpd-hpa, libnet-telnet-perl, isc-dhcp-server | kea, bind9, apache2, nfs-kernel-server, xcat-genesis-scripts-amd64 (>= 2.13-snap000000000000)
+Recommends: net-tools, nmap, kea, tftp-hpa, ipmitool-xcat (>= 1.8.17-1), syslinux[any-amd64], libsys-virt-perl, syslinux-xcat, xnba-undi, elilo-xcat, xcat-buildkit (>= 2.13-snap000000000000), xcat-probe (>= 2.13-snap000000000000)
 Suggests: yaboot-xcat
 Description: Metapackage for a common, default xCAT service node setup
  xCATsn is a service node management package intended for at-scale