From: "Q. Gylstorff" <Quirin.Gylstorff@siemens.com>
To: isar-users@googlegroups.com, Jan.Kiszka@siemens.com
Cc: Quirin Gylstorff <quirin.gylstorff@siemens.com>
Subject: [PATCH v5 1/3] meta/support: Generate a custom initramfs
Date: Thu, 23 Apr 2020 11:46:34 +0200 [thread overview]
Message-ID: <20200423094636.24511-2-Quirin.Gylstorff@siemens.com> (raw)
In-Reply-To: <20200423094636.24511-1-Quirin.Gylstorff@siemens.com>
From: Quirin Gylstorff <quirin.gylstorff@siemens.com>
This package sets the Parameters for mkinitramfs/update-intramfs
before it regenerates the initrd.img of debian with a modified version.
Use cases are the remove unnecessary kernel modules to reduce the
size of the initrd by using the parameters:
```
INITRAMFS_MODULES = "list"
INITRAMFS_MODULE_LIST += "ext4"
```
Set the boot root during the initrd generation by setting `INITRAMFS_ROOT`.
see also man pages of mkinitramfs and initramfs.conf.
Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
---
.../initramfs-config/files/control.tmpl | 12 +++++
.../initramfs-config/files/postinst.tmpl | 50 +++++++++++++++++++
.../initramfs-config/files/postrm.tmpl | 41 +++++++++++++++
.../initramfs-config/initramfs-config_0.1.bb | 32 ++++++++++++
4 files changed, 135 insertions(+)
create mode 100644 meta/recipes-support/initramfs-config/files/control.tmpl
create mode 100644 meta/recipes-support/initramfs-config/files/postinst.tmpl
create mode 100644 meta/recipes-support/initramfs-config/files/postrm.tmpl
create mode 100644 meta/recipes-support/initramfs-config/initramfs-config_0.1.bb
diff --git a/meta/recipes-support/initramfs-config/files/control.tmpl b/meta/recipes-support/initramfs-config/files/control.tmpl
new file mode 100644
index 0000000..e0f5543
--- /dev/null
+++ b/meta/recipes-support/initramfs-config/files/control.tmpl
@@ -0,0 +1,12 @@
+Source: initramfs-config
+Section: misc
+Priority: optional
+Standards-Version: 3.9.6
+Maintainer: isar-users <isar-users@googlegroups.com>
+Build-Depends: debhelper (>= 9)
+
+
+Package: initramfs-config
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, initramfs-tools-core, ${DEBIAN_DEPENDS}
+Description: Configuration files for a custom initramfs
diff --git a/meta/recipes-support/initramfs-config/files/postinst.tmpl b/meta/recipes-support/initramfs-config/files/postinst.tmpl
new file mode 100644
index 0000000..e523906
--- /dev/null
+++ b/meta/recipes-support/initramfs-config/files/postinst.tmpl
@@ -0,0 +1,50 @@
+#!/bin/sh
+# postinst script for initramfs-config
+#
+# see: dh_installdeb(1)
+
+set -e
+
+case "$1" in
+ configure)
+ INITRAMFS_CONF=/etc/initramfs-tools/initramfs.conf
+ if [ -f ${INITRAMFS_CONF} ]; then
+ sed -i -E 's/(^MODULES=).*/\1${INITRAMFS_MODULES}/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^BUSYBOX=).*/\1${INITRAMFS_BUSYBOX}/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^COMPRESS=).*/\1${INITRAMFS_COMPRESS}/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^KEYMAP=).*/\1${INITRAMFS_KEYMAP}/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^DEVICE=).*/\1${INITRAMFS_NET_DEVICE}/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^NFSROOT=).*/\1${INITRAMFS_NFSROOT}/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^RUNSIZE=).*/\1${INITRAMFS_RUNSIZE}/' ${INITRAMFS_CONF}
+ if grep -Fxq "ROOT=" "${INITRAMFS_CONF}"; then
+ sed -i -E 's/(^ROOT=).*/\1${INITRAMFS_ROOT}/' ${INITRAMFS_CONF}
+ else
+ sed -i -E "\$aROOT=${INITRAMFS_ROOT}" ${INITRAMFS_CONF}
+ fi
+ fi
+
+ MODULES_LIST_FILE=/etc/initramfs-tools/modules
+ if [ -f ${MODULES_LIST_FILE} ]; then
+ for modname in ${INITRAMFS_MODULE_LIST}; do
+ if ! grep -Fxq "$modname" "${MODULES_LIST_FILE}"; then
+ echo "$modname" >> "${MODULES_LIST_FILE}"
+ fi
+ done
+ fi
+
+ update-initramfs -v -u
+
+ ;;
+ abort-upgrade|abort-remove|abort-deconfigure)
+ ;;
+
+ *)
+ echo "postinst called with unknown argument \`$1'" >&2
+ exit 1
+ ;;
+esac
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+#DEBHELPER#
+
+exit 0
diff --git a/meta/recipes-support/initramfs-config/files/postrm.tmpl b/meta/recipes-support/initramfs-config/files/postrm.tmpl
new file mode 100644
index 0000000..115d9b6
--- /dev/null
+++ b/meta/recipes-support/initramfs-config/files/postrm.tmpl
@@ -0,0 +1,41 @@
+#!/bin/sh
+# postrm script for initramfs-config
+#
+# see: dh_installdeb(1)
+
+set -e
+
+case "$1" in
+ purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+ # back to the debian defaults
+ INITRAMFS_CONF=/etc/initramfs-tools/initramfs.conf
+ sed -i -E 's/(^MODULES=).*/\1most/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^BUSYBOX=).*/\1auto/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^COMPRESS=).*/\1gzip/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^KEYMAP=).*/\1n/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^DEVICE=).*/\1/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^NFSROOT=).*/\1auto/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^RUNSIZE=).*/\110%/' ${INITRAMFS_CONF}
+ sed -i -E 's/(^ROOT=).*//' ${INITRAMFS_CONF}
+
+ # remove the added modules
+ MODULES_LIST_FILE=/etc/initramfs-tools/modules
+ for modname in ${INITRAMFS_MODULE_LIST}; do
+ sed -i -E 's/$modname//'
+ done
+
+ update-initramfs -v -u
+ ;;
+
+ *)
+ echo "postrm called with unknown argument \`$1'" >&2
+ exit 1
+ ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0
diff --git a/meta/recipes-support/initramfs-config/initramfs-config_0.1.bb b/meta/recipes-support/initramfs-config/initramfs-config_0.1.bb
new file mode 100644
index 0000000..34bb25b
--- /dev/null
+++ b/meta/recipes-support/initramfs-config/initramfs-config_0.1.bb
@@ -0,0 +1,32 @@
+# This software is a part of ISAR.
+# Copyright (C) 2020 Siemens AG
+#
+# SPDX-License-Identifier: MIT
+inherit dpkg-raw
+inherit template
+DESCRIPTION = "Recipe to set the initramfs configuration and generate a new ramfs"
+
+
+SRC_URI = "file://postinst.tmpl \
+ file://postrm.tmpl \
+ file://control.tmpl \
+ "
+
+INITRAMFS_MODULES ?= "most"
+INITRAMFS_BUSYBOX ?= "auto"
+INITRAMFS_COMPRESS ?= "gzip"
+INITRAMFS_KEYMAP ?= "n"
+INITRAMFS_NET_DEVICE ?= ""
+INITRAMFS_NFSROOT ?= "auto"
+INITRAMFS_RUNSIZE ?= "10%"
+INITRAMFS_ROOT ?= ""
+INITRAMFS_MODULE_LIST ?= ""
+CREATE_NEW_INITRAMFS ?= "n"
+KERNEL_PACKAGE = "${@ ("linux-image-" + d.getVar("KERNEL_NAME", True)) if d.getVar("KERNEL_NAME", True) else ""}"
+DEBIAN_DEPENDS += ", ${KERNEL_PACKAGE}"
+TEMPLATE_FILES = "postinst.tmpl control.tmpl postrm.tmpl"
+TEMPLATE_VARS += "INITRAMFS_MODULES INITRAMFS_BUSYBOX INITRAMFS_COMPRESS \
+ INITRAMFS_KEYMAP INITRAMFS_NET_DEVICE INITRAMFS_NFSROOT \
+ INITRAMFS_RUNSIZE INITRAMFS_ROOT INITRAMFS_MODULE_LIST CREATE_NEW_INITRAMFS DEBIAN_DEPENDS"
+
+
--
2.20.1
next prev parent reply other threads:[~2020-04-23 9:46 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 13:27 [PATCH 0/3] some image classes Q. Gylstorff
2020-03-27 13:27 ` [PATCH 1/3] meta/classes: Generate a custom initramfs Q. Gylstorff
2020-03-30 7:25 ` Gylstorff Quirin
2020-03-30 8:08 ` Henning Schild
2020-03-27 13:28 ` [PATCH 2/3] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2020-03-27 18:50 ` Henning Schild
2020-03-30 7:27 ` Gylstorff Quirin
2020-03-27 13:28 ` [PATCH 3/3] meta/classes: add cpiogz-img Q. Gylstorff
2020-03-27 19:01 ` Henning Schild
2020-03-30 7:29 ` Gylstorff Quirin
2020-03-27 14:51 ` [PATCH] Add ova configuration for testing Q. Gylstorff
2020-03-27 18:46 ` Henning Schild
2020-03-27 14:52 ` [PATCH] conf: Add multiconfig for cpiogz Q. Gylstorff
2020-04-03 14:55 ` [PATCH v2 0/3] some images classes Q. Gylstorff
2020-04-03 14:55 ` [PATCH v2 1/3] meta/support: Generate a custom initramfs Q. Gylstorff
2020-04-09 6:39 ` Henning Schild
2020-04-09 13:59 ` Gylstorff Quirin
2020-04-09 17:18 ` Henning Schild
2020-04-03 14:55 ` [PATCH v2 2/3] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2020-04-09 6:48 ` Henning Schild
2020-04-09 14:28 ` Gylstorff Quirin
2020-04-03 14:55 ` [PATCH v2 3/3] meta/classes: add cpiogz-img Q. Gylstorff
2020-04-09 6:54 ` [PATCH v2 0/3] some images classes Henning Schild
2020-04-14 12:24 ` [PATCH v3 " Q. Gylstorff
2020-04-14 12:24 ` [PATCH v3 1/3] meta/support: Generate a custom initramfs Q. Gylstorff
2020-04-20 20:14 ` Henning Schild
2020-04-21 14:30 ` Gylstorff Quirin
2020-04-14 12:24 ` [PATCH v3 2/3] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2020-04-14 12:24 ` [PATCH v3 3/3] meta/classes: add cpiogz-img Q. Gylstorff
2020-04-20 20:14 ` [PATCH v3 0/3] some images classes Henning Schild
2020-04-21 14:57 ` [PATCH v4 0/3] some images Q. Gylstorff
2020-04-21 14:57 ` [PATCH v4 1/3] meta/support: Generate a custom initramfs Q. Gylstorff
2020-04-21 14:57 ` [PATCH v4 2/3] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2020-04-21 15:17 ` Jan Kiszka
2020-04-23 9:46 ` [PATCH v5 0/3] some images Q. Gylstorff
2020-04-23 9:46 ` Q. Gylstorff [this message]
2020-06-18 15:54 ` [PATCH v5 1/3] meta/support: Generate a custom initramfs Harald Seiler
2020-06-22 13:44 ` Gylstorff Quirin
2020-06-25 12:56 ` [PATCH v6 0/3] some images Q. Gylstorff
2020-06-25 12:56 ` [PATCH v6 1/3] meta/support: Generate a custom initramfs Q. Gylstorff
2020-09-16 12:24 ` Harald Seiler
2020-06-25 12:56 ` [PATCH v6 2/3] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2020-06-25 12:56 ` [PATCH v6 3/3] meta/classes: add cpiogz-img Q. Gylstorff
2020-10-13 10:22 ` [PATCH v6 0/3] some images Jan Kiszka
2021-02-05 10:07 ` Gylstorff Quirin
2021-02-05 10:52 ` [PATCH v7 0/2] CPIO & OVA Images Q. Gylstorff
2021-02-05 10:52 ` [PATCH v7 1/2] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2021-02-05 11:16 ` Jan Kiszka
2021-02-05 10:52 ` [PATCH v7 2/2] meta/classes: add cpiogz-img Q. Gylstorff
2021-02-05 11:09 ` Jan Kiszka
2021-02-05 15:57 ` [PATCH v8 0/2] CPIO & OVA Images Q. Gylstorff
2021-02-05 15:57 ` [PATCH v8 1/2] meta/classes: Generate ova image for VMWare or Virtualbox Q. Gylstorff
2021-03-26 11:47 ` Anton Mikanovich
2021-02-05 15:57 ` [PATCH v8 2/2] meta/classes: add cpiogz-img Q. Gylstorff
2021-03-26 11:51 ` Anton Mikanovich
2020-04-23 9:46 ` [PATCH v5 2/3] meta/classes: Generate ova image for vmware or virtualbox Q. Gylstorff
2020-04-23 9:46 ` [PATCH v5 3/3] meta/classes: add cpiogz-img Q. Gylstorff
2020-04-21 14:57 ` [PATCH v4 " Q. Gylstorff
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