[Libguestfs] [PATCH] appliance: Copy /etc/machine-id from host system into the appliance.

[Richard W.M. Jones]

Currently when the appliance is booted we see warning messages like
these ones:

[/usr/lib/tmpfiles.d/systemd.conf:26] Failed to replace specifiers: /run/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:28] Failed to replace specifiers: /run/log/journal/%m
[/usr/lib/tmpfiles.d/systemd.conf:29] Failed to replace specifiers: /run/log/journal/%m

They are apparently harmless, but are caused because /etc/machine-id
does not exist inside the appliance, and so %m cannot be substituted
by systemd-tmpfiles.

The solution to this is to provide /etc/machine-id.  However this is
not so simple: either we could get supermin to generate this,
requiring an ugly systemd-specific hack to supermin, or we could
generate it in the /init script, which just slows the init script down
for no real reason.

Since the content of /etc/machine-id doesn't really matter for a
throwaway appliance so long as it has the right format, this commit
copies the host file into the appliance.
---
 appliance/hostfiles.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/appliance/hostfiles.in b/appliance/hostfiles.in
index 8ff53b5..6c581bd 100644
--- a/appliance/hostfiles.in
+++ b/appliance/hostfiles.in
@@ -13,5 +13,6 @@ dnl   SUSE=1       For OpenSUSE.
 dnl   FRUGALWARE=1 For Frugalware.
 dnl   MAGEIA=1     For Mageia.
 
+/etc/machine-id
 /lib/lsb/*
 /usr/share/augeas/lenses/*.aug
-- 
2.7.4