diff mbox series

[isar-cip-core,RFC,7/8] Mount writable home partition

Message ID 20211112115017.401779-9-Quirin.Gylstorff@siemens.com (mailing list archive)
State Handled Elsewhere
Headers show
Series Read-only root file system with dm-verity | expand

Commit Message

Gylstorff Quirin Nov. 12, 2021, 11:50 a.m. UTC 
From: Quirin Gylstorff <quirin.gylstorff@siemens.com>

Add an example how to add an writable home partition

Signed-off-by: Quirin Gylstorff <quirin.gylstorff@siemens.com>
---
 recipes-core/home-fs/files/home.mount           | 11 +++++++++++
 recipes-core/home-fs/files/postinst             |  3 +++
 recipes-core/home-fs/home-fs_0.1.bb             | 10 ++++++++++
 recipes-core/images/cip-core-image-read-only.bb |  1 +
 wic/qemu-amd64-read-only.wks.in                 |  2 ++
 5 files changed, 27 insertions(+)
 create mode 100644 recipes-core/home-fs/files/home.mount
 create mode 100755 recipes-core/home-fs/files/postinst
 create mode 100644 recipes-core/home-fs/home-fs_0.1.bb
diff mbox series

Patch

diff --git a/recipes-core/home-fs/files/home.mount b/recipes-core/home-fs/files/home.mount
new file mode 100644
index 0000000..31272a0
--- /dev/null
+++ b/recipes-core/home-fs/files/home.mount
@@ -0,0 +1,11 @@ 
+[Unit]
+Description=Mount /home partition
+
+[Mount]
+What=/dev/disk/by-partlabel/home
+Where=/home
+Type=auto
+Options=defaults
+
+[Install]
+WantedBy=local-fs.target
\ No newline at end of file
diff --git a/recipes-core/home-fs/files/postinst b/recipes-core/home-fs/files/postinst
new file mode 100755
index 0000000..f6184d6
--- /dev/null
+++ b/recipes-core/home-fs/files/postinst
@@ -0,0 +1,3 @@ 
+#!/bin/sh
+
+deb-systemd-helper enable home.mount  || true
diff --git a/recipes-core/home-fs/home-fs_0.1.bb b/recipes-core/home-fs/home-fs_0.1.bb
new file mode 100644
index 0000000..c2b31c1
--- /dev/null
+++ b/recipes-core/home-fs/home-fs_0.1.bb
@@ -0,0 +1,10 @@ 
+inherit dpkg-raw
+
+SRC_URI = "file://postinst \
+           file://home.mount"
+
+do_install[cleandirs]+="${D}/lib/systemd/system"
+do_install() {
+    install -m 0644 ${WORKDIR}/home.mount ${D}/lib/systemd/system/home.mount
+
+}
\ No newline at end of file
diff --git a/recipes-core/images/cip-core-image-read-only.bb b/recipes-core/images/cip-core-image-read-only.bb
index 6e2a40a..4853571 100644
--- a/recipes-core/images/cip-core-image-read-only.bb
+++ b/recipes-core/images/cip-core-image-read-only.bb
@@ -7,6 +7,7 @@  do_wic_image[depends] += "${INITRAMFS_RECIPE}:do_build"
 SQUASHFS_EXCLUDE_DIRS += "home var"
 
 IMAGE_INSTALL += "etc-overlay-fs"
+IMAGE_INSTALL += "home-fs"
 IMAGE_INSTALL += "tmp-fs"
 IMAGE_INSTALL_remove += "initramfs-abrootfs-secureboot"
 
diff --git a/wic/qemu-amd64-read-only.wks.in b/wic/qemu-amd64-read-only.wks.in
index c4ea0c8..81fd4fe 100644
--- a/wic/qemu-amd64-read-only.wks.in
+++ b/wic/qemu-amd64-read-only.wks.in
@@ -8,6 +8,8 @@  part --source efibootguard-boot --ondisk sda --size 32M --extra-space 0 --overhe
 part --source rawcopy --sourceparams "file=${IMAGE_FULLNAME}.${VERITY_IMAGE_TYPE}.verity.img" --ondisk sda --align 1024 --fixed-size 1G --uuid "fedcba98-7654-3210-cafe-5e0710000001"
 part --source rawcopy --sourceparams "file=${IMAGE_FULLNAME}.${VERITY_IMAGE_TYPE}.verity.img" --ondisk sda --align 1024 --fixed-size 1G --uuid "fedcba98-7654-3210-cafe-5e0710000002"
 
+# home and var are extra partitions
+part /home --source rootfs --rootfs-dir=${IMAGE_ROOTFS}/home --ondisk sda --fstype=ext4 --label home --align 1024  --size 1G
 part /var --source rootfs --rootfs-dir=${IMAGE_ROOTFS}/var --ondisk sda --fstype=ext4 --label var --align 1024  --size 2G
 
 bootloader --ptable gpt --append="console=tty0 console=ttyS0,115200 rootwait rw earlyprintk"