- 0001-systemd-Decouple-the-starting-and-stopping-of-rpcbin.patch
0002-systemd-unit-files-fix-up-dependencies-on-rpcbind.patch Fix systemd dependencies to ensure rpcbind is started when needed. (bsc#975265) OBS-URL: https://build.opensuse.org/package/show/Base:System/nfs-utils?expand=0&rev=163
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Neil Brown
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@ -0,0 +1,49 @@
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From 4fabfcd082069a16ea8769b9ea9344fc15011366 Mon Sep 17 00:00:00 2001
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From: Steve Dickson <steved@redhat.com>
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Date: Mon, 9 Nov 2015 11:28:30 -0500
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Subject: [PATCH] systemd: Decouple the starting and stopping of
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rpcbind/nfs-server
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Commit b98f2af15 introduced a regression that cause the
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starting and stop of rpcbind and the nfs-server to
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be depended on each other
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The starting of the NFS server should start rpcbind
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but bring rpcbind down should not bring the NFS
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server down.
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Signed-off-by: Steve Dickson <steved@redhat.com>
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---
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systemd/nfs-server.service | 2 +-
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systemd/rpc-statd.service | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/systemd/nfs-server.service b/systemd/nfs-server.service
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index 12b02f26f9ce..317e5d689767 100644
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--- a/systemd/nfs-server.service
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+++ b/systemd/nfs-server.service
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@@ -1,7 +1,7 @@
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[Unit]
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Description=NFS server and services
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DefaultDependencies=no
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-Requires= network.target proc-fs-nfsd.mount rpcbind.service
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+Requires= network.target proc-fs-nfsd.mount rpcbind.target
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Requires= nfs-mountd.service
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Wants=rpc-statd.service nfs-idmapd.service
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Wants=rpc-statd-notify.service
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diff --git a/systemd/rpc-statd.service b/systemd/rpc-statd.service
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index 14604d783ddf..f16ea425dc77 100644
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--- a/systemd/rpc-statd.service
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+++ b/systemd/rpc-statd.service
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@@ -3,7 +3,7 @@ Description=NFS status monitor for NFSv2/3 locking.
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DefaultDependencies=no
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Conflicts=umount.target
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Requires=nss-lookup.target rpcbind.target
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-After=network.target nss-lookup.target rpcbind.target
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+After=network.target nss-lookup.target rpcbind.service
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PartOf=nfs-utils.service
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--
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2.8.2
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131
0002-systemd-unit-files-fix-up-dependencies-on-rpcbind.patch
Normal file
131
0002-systemd-unit-files-fix-up-dependencies-on-rpcbind.patch
Normal file
@ -0,0 +1,131 @@
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From 91da135f243d6f87fcea8b8a3ce28a589917b0e4 Mon Sep 17 00:00:00 2001
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From: NeilBrown <neilb@suse.com>
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Date: Mon, 2 May 2016 08:54:13 -0400
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Subject: [PATCH] systemd unit files: fix up dependencies on rpcbind.
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The dependencies on rpcbind have been changed a few times and I think
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they are still wrong. So I'll go into some detail to justify this
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change.
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Firstly: rpcbind.target rpcbind.socket or rpcbind.service?
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The systemd documentation talks about targets as "synchronization
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points" and likens them to SysV init run levels. Run levels are about
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ordering but not dependencies.
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The systemd.special man page describes rpcbind.target as intended
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explicitly for ordering sysvinit scripts, with "After=" dependencies.
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So while I think it is valid to use rpcbind.target for ordering
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(before/after) it shouldn't be used for dependencies (Wants/Requires).
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The rpcbind.target file included in systemd does not "Require" the
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actual service, so requiring rpcbind.target itself is pointless.
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I think we shouldn't use rpcbind.target at all. Leave it for sysvinit
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synchronization.
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So: .socket or .service?
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I think nfs only needs the socket to be active. On first connection
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the service will be started. But nfs does not need to wait for the
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service to start, only the socket. So I think we should exclusively
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use rpcbind.socket.
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Next: Wants or Requires.
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rpc.statd definitely Requires rpcbind. It needs to register to be
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useful, and without rpcbind it cannot register.
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nfs-server does not necesarily require rpcbind. Specifically if
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configured for NFSv4 only, nfs-server will work quite happily without
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rpcbind.
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Someone with an NFSv4 only setup who wants rpcbind to not run can use
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systemctl mask rpcbind.socket
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to ensure it never runs.
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So nfs-server should only "Wants: rpcbind.socket".
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I think
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Commit: 4fabfcd08206 ("systemd: Decouple the starting and stopping of
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rpcbind/nfs-server")
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should have changed "Requires" to "Wants" rather than "server" to
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"target"
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to fix the dependency problem.
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Finally: After?
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It only makes sense to declare an ordering relation as "After:"
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something that will actually be started. If "foo.service" is not part
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of the systemd transaction, then "After: foo.service" has no effect.
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So having:
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Requires: rpcbind.target
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After: rpcbind.socket
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doesn't make much sense unless there is some relationship between
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rpcbind.target and rpcbind.socket, and there is no general guarantee
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of that (though what individual distros do, I don't know).
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So the "After" should match the "Wants" or "Requires".
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It might make sense to
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Requires: rpcbind.socket
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After: rpcbind.target
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as it is reasonable to assume that rpcbind.target will be ordered with
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rpcbind.socket, but as we can use rpcbind.socket explictly, that is
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clearer.
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So my conclusion is that nfs-server should:
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Wants: rpcbind.socket
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After: rpcbind.socket
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and rpc-statd should
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Requires: rpcbind.socket
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After: rpcbind.socket
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which is what this patch puts into effect.
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Signed-off-by: NeilBrown <neilb@suse.com>
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Signed-off-by: Steve Dickson <steved@redhat.com>
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---
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systemd/nfs-server.service | 5 +++--
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systemd/rpc-statd.service | 4 ++--
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2 files changed, 5 insertions(+), 4 deletions(-)
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diff --git a/systemd/nfs-server.service b/systemd/nfs-server.service
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index 317e5d689767..2ccdc6344cd5 100644
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--- a/systemd/nfs-server.service
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+++ b/systemd/nfs-server.service
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@@ -1,13 +1,14 @@
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[Unit]
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Description=NFS server and services
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DefaultDependencies=no
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-Requires= network.target proc-fs-nfsd.mount rpcbind.target
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+Requires= network.target proc-fs-nfsd.mount
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Requires= nfs-mountd.service
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+Wants=rpcbind.socket
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Wants=rpc-statd.service nfs-idmapd.service
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Wants=rpc-statd-notify.service
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After= local-fs.target
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-After= network.target proc-fs-nfsd.mount rpcbind.service nfs-mountd.service
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+After= network.target proc-fs-nfsd.mount rpcbind.socket nfs-mountd.service
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After= nfs-idmapd.service rpc-statd.service
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Before= rpc-statd-notify.service
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diff --git a/systemd/rpc-statd.service b/systemd/rpc-statd.service
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index f16ea425dc77..a02f5c41a424 100644
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--- a/systemd/rpc-statd.service
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+++ b/systemd/rpc-statd.service
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@@ -2,8 +2,8 @@
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Description=NFS status monitor for NFSv2/3 locking.
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DefaultDependencies=no
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Conflicts=umount.target
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-Requires=nss-lookup.target rpcbind.target
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-After=network.target nss-lookup.target rpcbind.service
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+Requires=nss-lookup.target rpcbind.socket
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+After=network.target nss-lookup.target rpcbind.socket
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PartOf=nfs-utils.service
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--
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2.8.2
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@ -1,3 +1,11 @@
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-------------------------------------------------------------------
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Tue May 24 22:27:14 UTC 2016 - nfbrown@suse.com
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- 0001-systemd-Decouple-the-starting-and-stopping-of-rpcbin.patch
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0002-systemd-unit-files-fix-up-dependencies-on-rpcbind.patch
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Fix systemd dependencies to ensure rpcbind is started when needed.
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(bsc#975265)
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-------------------------------------------------------------------
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Thu Apr 21 23:40:59 UTC 2016 - neilb@suse.com
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@ -66,6 +66,8 @@ Patch4: 0001-mount.nfs-hide-EBUSY-errors.patch
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Patch5: 0001-close-the-syslog-fd-in-daemon_init.patch
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Patch6: 0001-mount.nfs-trust-the-exit-status-of-start_statd.patch
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Patch7: 0001-mount-run-START_STATD-fully-as-root.patch
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Patch8: 0001-systemd-Decouple-the-starting-and-stopping-of-rpcbin.patch
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Patch9: 0002-systemd-unit-files-fix-up-dependencies-on-rpcbind.patch
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Suggests: python-base
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@ -124,6 +126,8 @@ This package contains additional NFS documentation.
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%patch5 -p1
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%patch6 -p1
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%patch7 -p1
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%patch8 -p1
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%patch9 -p1
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cp %{S:6} .
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