[PATCH OSSTEST RFC 0/2] Test booting hvm guest with empty cdrom drive

[PATCH OSSTEST RFC 0/2] Test booting hvm guest with empty cdrom drive

[Wei Liu]

This can only go in after the bug is fixed and possibly backported to all the
trees we care about. It won't pass osstest self pushgate otherwise.

Wei.

Wei Liu (2):
  Testsupport: rename guest_editconfig_nocd to _postinstall
  Make guest cdrom empty after installation completes

 Osstest/TestSupport.pm | 8 ++++----
 ts-debian-hvm-install  | 6 +-----
 ts-redhat-install      | 6 +-----
 3 files changed, 6 insertions(+), 14 deletions(-)

-- 
2.1.4


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[PATCH OSSTEST RFC 1/2] Testsupport: rename guest_editconfig_nocd to _postinstall

[Wei Liu]

It does more than just replacing the disc in cdrom. It also modifies
guest reboot action.

No functional change.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 Osstest/TestSupport.pm | 4 ++--
 ts-debian-hvm-install  | 2 +-
 ts-redhat-install      | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index 9e6479a..8b15b6d 100644
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -119,7 +119,7 @@ BEGIN {
                       iso_create_empty
                       iso_gen_flags_basic
                       iso_copy_content_from_image
-                      guest_editconfig_nocd
+                      guest_editconfig_postinstall
                       host_install_postboot_complete
                       target_core_dump_setup
                       );
@@ -2509,7 +2509,7 @@ sub iso_copy_content_from_image($$) {
 END
 }
 
-sub guest_editconfig_nocd ($$) {
+sub guest_editconfig_postinstall ($$) {
     my ($gho,$emptyiso) = @_;
     guest_editconfig($gho->{Host}, $gho, sub {
         if (m/^\s*disk\s*\=/ .. /\]/) {
diff --git a/ts-debian-hvm-install b/ts-debian-hvm-install
index 7521d57..d174c55 100755
--- a/ts-debian-hvm-install
+++ b/ts-debian-hvm-install
@@ -283,7 +283,7 @@ if ($stage<2) {
     guest_destroy($gho);
 }
 
-guest_editconfig_nocd($gho,$emptyiso);
+guest_editconfig_postinstall($gho,$emptyiso);
 guest_create($gho);
 guest_await_dhcp_tcp($gho,300);
 guest_check_up($gho);
diff --git a/ts-redhat-install b/ts-redhat-install
index 10da559..89e0a5f 100755
--- a/ts-redhat-install
+++ b/ts-redhat-install
@@ -158,7 +158,7 @@ if ($stage<2) {
     guest_destroy($gho);
 }
 
-guest_editconfig_nocd($gho,$emptyiso);
+guest_editconfig_postinstall($gho,$emptyiso);
 guest_create($gho);
 guest_await_dhcp_tcp($gho,300);
 guest_check_up($gho);
-- 
2.1.4


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Re: [PATCH OSSTEST RFC 1/2] Testsupport: rename guest_editconfig_nocd to _postinstall

[Ian Jackson]

Wei Liu writes ("[PATCH OSSTEST RFC 1/2] Testsupport: rename guest_editconfig_nocd to _postinstall"):
> It does more than just replacing the disc in cdrom. It also modifies
> guest reboot action.

I think this probably ought to be called `midinstall' or something.
The installation isn't complete until firstboot stuff is done.

With that change,

Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

Ian.

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[PATCH OSSTEST RFC 2/2] Make guest cdrom empty after installation completes

[Wei Liu]

Previously an iso image that contains nothing was inserted to cdrom
after guest installation had finished.

With this patch we make cdrom really empty.  This helps catch bug that
prevents booting hvm guest with empty cdrom drive.

Remove empty iso image generate in ts-{debian-hvm,redhat}-install as
well.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
 Osstest/TestSupport.pm | 6 +++---
 ts-debian-hvm-install  | 6 +-----
 ts-redhat-install      | 6 +-----
 3 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index 8b15b6d..f06db51 100644
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -2509,11 +2509,11 @@ sub iso_copy_content_from_image($$) {
 END
 }
 
-sub guest_editconfig_postinstall ($$) {
-    my ($gho,$emptyiso) = @_;
+sub guest_editconfig_postinstall ($) {
+    my ($gho) = @_;
     guest_editconfig($gho->{Host}, $gho, sub {
         if (m/^\s*disk\s*\=/ .. /\]/) {
-            s/\Q$gho->{Rimage}\E/$emptyiso/;
+            s/\Q$gho->{Rimage}\E//;
         }
         s/^on_reboot.*/on_reboot='restart'/;
     });
diff --git a/ts-debian-hvm-install b/ts-debian-hvm-install
index d174c55..b8a2ae2 100755
--- a/ts-debian-hvm-install
+++ b/ts-debian-hvm-install
@@ -181,8 +181,6 @@ sub prepare_initrd ($$$) {
 END
 }
 
-our $emptyiso= "/root/$flight.$job.$gn-empty.iso";
-
 sub iso_path ($$) {
     my ($which, $deftail) = @_;
     my $v = guest_var($gho, "iso_$which", "/install.amd/$deftail");
@@ -213,8 +211,6 @@ sub prep () {
                           -no-emul-boot
                           -r);
 
-    iso_create_empty($ho, $emptyiso, $emptydir);
-
     my $extra_config = '';
     $extra_config .= "nestedhvm=1\n"
 	if guest_var_boolean($gho,"enable_nestedhvm");
@@ -283,7 +279,7 @@ if ($stage<2) {
     guest_destroy($gho);
 }
 
-guest_editconfig_postinstall($gho,$emptyiso);
+guest_editconfig_postinstall($gho);
 guest_create($gho);
 guest_await_dhcp_tcp($gho,300);
 guest_check_up($gho);
diff --git a/ts-redhat-install b/ts-redhat-install
index 89e0a5f..a950778 100755
--- a/ts-redhat-install
+++ b/ts-redhat-install
@@ -106,8 +106,6 @@ ENDKEYS
 END
 }
 
-our $emptyiso= "/root/$flight.$job.$gn-empty.iso";
-
 sub prep () {
     target_install_packages_norec($ho, qw(lvm2 rsync genisoimage));
 
@@ -120,8 +118,6 @@ sub prep () {
     my $newiso= "/root/$flight.$job.$gn-newiso";
     my $emptydir= "/root/$flight.$job.$gn-empty-dir";
 
-    iso_create_empty($ho, $emptyiso, $emptydir);
-
     my @isogen= iso_gen_flags_basic();
 
     more_prepareguest_hvm($ho,$gho, $ram_mb, $disk_mb,
@@ -158,7 +154,7 @@ if ($stage<2) {
     guest_destroy($gho);
 }
 
-guest_editconfig_postinstall($gho,$emptyiso);
+guest_editconfig_postinstall($gho);
 guest_create($gho);
 guest_await_dhcp_tcp($gho,300);
 guest_check_up($gho);
-- 
2.1.4


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Re: [PATCH OSSTEST RFC 2/2] Make guest cdrom empty after installation completes

[Ian Jackson]

Wei Liu writes ("[PATCH OSSTEST RFC 2/2] Make guest cdrom empty after installation completes"):
> Previously an iso image that contains nothing was inserted to cdrom
> after guest installation had finished.
> 
> With this patch we make cdrom really empty.  This helps catch bug that
> prevents booting hvm guest with empty cdrom drive.
> 
> Remove empty iso image generate in ts-{debian-hvm,redhat}-install as
> well.

Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

However, given the bugs currently being discussed, and the fact that
we're currently in a pre-freeze crunch, I'm reluctant to push this to
osstest staging right now.

On any stable branches with empty cd bugs, it would immediately fail
and cause blockages.

I'd like to make this change during the 4.7 freeze period, after fixes
for these bugs are available in staging.  During the freeze the fixes
can be backported to stable branches.

Thanks,
Ian.

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Re: [PATCH OSSTEST RFC 2/2] Make guest cdrom empty after installation completes

[Wei Liu]

On Wed, Apr 06, 2016 at 04:02:21PM +0100, Ian Jackson wrote:
> Wei Liu writes ("[PATCH OSSTEST RFC 2/2] Make guest cdrom empty after installation completes"):
> > Previously an iso image that contains nothing was inserted to cdrom
> > after guest installation had finished.
> > 
> > With this patch we make cdrom really empty.  This helps catch bug that
> > prevents booting hvm guest with empty cdrom drive.
> > 
> > Remove empty iso image generate in ts-{debian-hvm,redhat}-install as
> > well.
> 
> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
> 
> However, given the bugs currently being discussed, and the fact that
> we're currently in a pre-freeze crunch, I'm reluctant to push this to
> osstest staging right now.
> 
> On any stable branches with empty cd bugs, it would immediately fail
> and cause blockages.
> 
> I'd like to make this change during the 4.7 freeze period, after fixes
> for these bugs are available in staging.  During the freeze the fixes
> can be backported to stable branches.
> 

I agree. I stated more or less the same opinion in cover letter. :-)

Wei.

> Thanks,
> Ian.

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