/etc/hostid is used by ZFS (spl.ko) to determine which host last imported a
pool creating and importing a pool with one hostid during install and booting
with a different one (or none) leads to the system refusing to import the pool
see spl-module-parameters(5) and zpool(8).

by copying the /etc/hostid from the installer into the target system we ensure
that it stays consistent

Signed-off-by: Stoiko Ivanov <s.iva...@proxmox.com>
---
 proxinstall | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/proxinstall b/proxinstall
index 19d0896..8ac00d0 100755
--- a/proxinstall
+++ b/proxinstall
@@ -1511,6 +1511,8 @@ sub extract_data {
        diversion_add($targetdir, "/usr/sbin/update-initramfs", "/bin/true");
        syscmd("systemd-machine-id-setup --root=$targetdir") == 0 ||
            die "unable to create a new machine-id\n";
+       syscmd("cp /etc/hostid $targetdir/etc/") == 0 ||
+           die "unable to copy hostid\n";
 
 
        syscmd("touch  $targetdir/proxmox_install_mode");
-- 
2.20.1


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