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fix(xcat-core): nodeset cannot boot an Ubuntu POWER install from live media

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nodeset stops the diskful install on every ppc64le cell of
xcat-core-devel-ubuntu-cd (build #119, ubuntu-24-ppc64le-devel):

    xcat25-cn: The network boot initrd.gz is not found in
    /install/ubuntu24.04.4/ppc64el/install/netboot.

The Ubuntu ppc64el live-server ISO carries no netboot tree. The installer
kernel and initrd sit under casper. Two places in
xCAT-server/lib/xcat/plugins/debian.pm reject that media: %INSTALL_BOOT_FILES
describes no casper layout for POWER, and mkinstall applies a second,
POWER-only precondition on install/netboot/initrd.gz before it calls the
resolver.

The POWER table now carries casper/hwe-vmlinux + casper/hwe-initrd and
casper/vmlinux + casper/initrd, after the netboot entries so a netboot tree
still wins. install_media_is_bootable replaces the POWER-only precondition, so
one routine decides what media can boot.

debian_install_boot_files.t resolves the POWER casper layouts and drives
install_media_is_bootable. It fails without this change.

Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>
This commit is contained in:
Daniel Hilst
2026-09-11 14:39:23 -03:00
parent 7aeb4ee189
commit 0c27708c0f
1 changed files with 28 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
xCAT-server/lib/xcat/plugins/debian.pm
+28 -4
View File
@@ -191,6 +191,8 @@ my %INSTALL_BOOT_FILES = (
'ppc64' => [
[ 'install/netboot/ubuntu-installer/{darch}/vmlinux', 'install/netboot/ubuntu-installer/{darch}/initrd.gz' ],
[ 'install/vmlinux', 'install/netboot/initrd.gz' ],
[ 'casper/hwe-vmlinux', 'casper/hwe-initrd' ],
[ 'casper/vmlinux', 'casper/initrd' ],
],
'riscv64' => [
[ 'casper/vmlinux', 'casper/initrd' ],
@@ -379,6 +381,27 @@ sub _no_grub2_loader {
return;
}
#-------------------------------------------------------
=head3 install_media_is_bootable
Descriptions: Report whether copied media carries an install kernel and initrd.
Arguments:
$arch - the xCAT architecture of the node
$darch - the dpkg architecture
$pkgdir - the directory copycds wrote the media to
Returns: 1 when the media can boot a network install, 0 when it cannot
=cut
#-------------------------------------------------------
sub install_media_is_bootable
{
my ($arch, $darch, $pkgdir) = @_;
return install_boot_files($arch, $darch, $pkgdir) ? 1 : 0;
}
sub is_ubuntu_live_media
{
my $media_path = shift;
@@ -1176,10 +1199,11 @@ sub mkinstall {
next;
}
if ($arch =~ /ppc64/i and !(-e "$pkgdir/install/netboot/initrd.gz") and
!(-e "$pkgdir/install/netboot/ubuntu-installer/$darch/initrd.gz")) {
xCAT::MsgUtils->report_node_error($callback, $node,
"The network boot initrd.gz is not found in $pkgdir/install/netboot. This is provided by Ubuntu, please download and retry."
# The POWER live-server ISO keeps its installer under casper and ships no netboot
# tree, so the media that can boot it is the media install_boot_files resolves.
unless (install_media_is_bootable($arch, $darch, $pkgdir)) {
xCAT::MsgUtils->report_node_error($callback, $node,
"No install kernel and initrd were found on the media in $pkgdir."
);
next;
}