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authorChristian Lamparter <chunkeey@gmail.com>2018-03-27 19:42:18 +0200
committerJohn Crispin <john@phrozen.org>2018-05-24 17:24:30 +0200
commitfff02093e602f7c49161746305a4b13c1a2bb441 (patch)
treee86b2638371017b72204090b5aa4d317d2c326e3 /target/linux
parentefdfb253d84a853a3f3efda6b11e958cf5f197ee (diff)
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brcm2708: add squashfs rootfs image
This patch adds a image with squashfs as the root filesystem. A rootfs_data partition will be generated on the first boot and placed inside the rootfs partition (just after the squashfs image). advantages: - it is possible to migrate from an existing -ext4 installation and back via sysupgrade. - existing partition layout will not be lost. - slightly smaller image size. - support for attendedsysupgrade disadvantages: - needs f2fs + tools as well. This is because fs-tools decides on the blocksize of the sdcard. So either f2fs or ext4 can get choosen as the rootfs_data filesystem (depends on the size of the root partition). - rootfs_data is placed into the rootfs partition. This makes it difficult for tools that expect a /dev/mmc0pX device. It also makes it difficult for data recovery tools since they might not expect to find a embedded partition or will be confused. For people with existing build configurations: make sure to include mkf2fs and f2fsck package into the image... Otherwise the new -squashfs image will boot of a ram-overlay and won't keep the configurations after a reboot. Cc: Álvaro Fernández Rojas <noltari@gmail.com> Cc: Paul Spooren <spooren@informatik.uni-leipzig.de> Cc: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Acked-by: Daniel Golle <daniel@makrotopia.org> (cherry picked from commit 707b6c815bba34e9783d2695020bb17385fdcf1d)
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/brcm2708/Makefile5
-rw-r--r--target/linux/brcm2708/bcm2708/config-4.96
-rw-r--r--target/linux/brcm2708/bcm2709/config-4.96
-rw-r--r--target/linux/brcm2708/bcm2710/config-4.96
-rw-r--r--target/linux/brcm2708/image/Makefile1
-rw-r--r--target/linux/brcm2708/image/cmdline.txt2
6 files changed, 19 insertions, 7 deletions
diff --git a/target/linux/brcm2708/Makefile b/target/linux/brcm2708/Makefile
index 244513d..870029c 100644
--- a/target/linux/brcm2708/Makefile
+++ b/target/linux/brcm2708/Makefile
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
ARCH:=arm
BOARD:=brcm2708
BOARDNAME:=Broadcom BCM27xx
-FEATURES:=ext4 audio usb usbgadget display gpio fpu
+FEATURES:=ext4 audio usb usbgadget display gpio fpu squashfs
MAINTAINER:=Álvaro Fernández Rojas <noltari@gmail.com>
SUBTARGETS:=bcm2708 bcm2709 bcm2710
@@ -27,7 +27,8 @@ DEFAULT_PACKAGES += \
kmod-usb-hid \
kmod-sound-core kmod-sound-arm-bcm2835 \
kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 \
- brcmfmac-firmware-43430-sdio kmod-brcmfmac wpad-mini
+ brcmfmac-firmware-43430-sdio kmod-brcmfmac wpad-mini \
+ partx-utils mkf2fs e2fsprogs
KERNELNAME:=Image dtbs
diff --git a/target/linux/brcm2708/bcm2708/config-4.9 b/target/linux/brcm2708/bcm2708/config-4.9
index dccf85f..116dd25 100644
--- a/target/linux/brcm2708/bcm2708/config-4.9
+++ b/target/linux/brcm2708/bcm2708/config-4.9
@@ -141,6 +141,11 @@ CONFIG_ENABLE_MUST_CHECK=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
CONFIG_FB=y
CONFIG_FB_BCM2708=y
CONFIG_FB_CFB_COPYAREA=y
@@ -342,7 +347,6 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SG_POOL=y
CONFIG_SPARSE_IRQ=y
-# CONFIG_SQUASHFS is not set
CONFIG_SRCU=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_SUSPEND=y
diff --git a/target/linux/brcm2708/bcm2709/config-4.9 b/target/linux/brcm2708/bcm2709/config-4.9
index 1134f0d..4e505ed 100644
--- a/target/linux/brcm2708/bcm2709/config-4.9
+++ b/target/linux/brcm2708/bcm2709/config-4.9
@@ -155,6 +155,11 @@ CONFIG_ENABLE_MUST_CHECK=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
CONFIG_FB=y
CONFIG_FB_BCM2708=y
CONFIG_FB_CFB_COPYAREA=y
@@ -372,7 +377,6 @@ CONFIG_SG_POOL=y
CONFIG_SMP=y
CONFIG_SMP_ON_UP=y
CONFIG_SPARSE_IRQ=y
-# CONFIG_SQUASHFS is not set
CONFIG_SRCU=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_SUSPEND=y
diff --git a/target/linux/brcm2708/bcm2710/config-4.9 b/target/linux/brcm2708/bcm2710/config-4.9
index 070b709..2f48696 100644
--- a/target/linux/brcm2708/bcm2710/config-4.9
+++ b/target/linux/brcm2708/bcm2710/config-4.9
@@ -160,6 +160,11 @@ CONFIG_ENABLE_MUST_CHECK=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
CONFIG_FB=y
CONFIG_FB_BCM2708=y
CONFIG_FB_CFB_COPYAREA=y
@@ -388,7 +393,6 @@ CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSE_IRQ=y
-# CONFIG_SQUASHFS is not set
CONFIG_SRCU=y
# CONFIG_STRIP_ASM_SYMS is not set
CONFIG_SUSPEND=y
diff --git a/target/linux/brcm2708/image/Makefile b/target/linux/brcm2708/image/Makefile
index 691212d..326ef5a 100644
--- a/target/linux/brcm2708/image/Makefile
+++ b/target/linux/brcm2708/image/Makefile
@@ -47,7 +47,6 @@ endef
### Devices ###
define Device/Default
- FILESYSTEMS := ext4
KERNEL := kernel-bin | kernel-img
KERNEL_IMG := kernel.img
IMAGES := sdcard.img.gz
diff --git a/target/linux/brcm2708/image/cmdline.txt b/target/linux/brcm2708/image/cmdline.txt
index 24f4f0c..c1099af 100644
--- a/target/linux/brcm2708/image/cmdline.txt
+++ b/target/linux/brcm2708/image/cmdline.txt
@@ -1 +1 @@
-dwc_otg.lpm_enable=0 console=serial0,115200 kgdboc=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait
+dwc_otg.lpm_enable=0 console=serial0,115200 kgdboc=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=squashfs,ext4 rootwait