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author | Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com> | 2015-04-02 18:23:01 +0300 |
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committer | Martin Jansa <Martin.Jansa@gmail.com> | 2015-04-13 12:55:51 +0200 |
commit | a94da017797e82d62484ffbced93108ce5830de1 (patch) | |
tree | cfe906dcbc3f81a553dbb16a0cf3c0ae1e89f990 /meta-initramfs/recipes-bsp | |
parent | 22990fdc1274165b439d32ca75839e1c44036b1c (diff) | |
download | meta-openembedded-a94da017797e82d62484ffbced93108ce5830de1.tar.gz |
initramfs-debug: add simple init script for debugging
Add a tiny simple debug script that will mount all available virtual
file systems and then execute a shell.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Diffstat (limited to 'meta-initramfs/recipes-bsp')
-rw-r--r-- | meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh | 31 | ||||
-rw-r--r-- | meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb | 14 |
2 files changed, 45 insertions, 0 deletions
diff --git a/meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh b/meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh new file mode 100644 index 0000000000..7edbd70cb0 --- /dev/null +++ b/meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh @@ -0,0 +1,31 @@ +#!/bin/sh + +PATH=/sbin:/bin:/usr/sbin:/usr/bin + +do_mount_fs() { + grep -q "$1" /proc/filesystems || return + test -d "$2" || mkdir -p "$2" + mount -t "$1" "$1" "$2" +} + +do_mknod() { + test -e "$1" || mknod "$1" "$2" "$3" "$4" +} + +mkdir -p /proc +mount -t proc proc /proc + +do_mount_fs sysfs /sys +do_mount_fs debugfs /sys/kernel/debug +do_mount_fs devtmpfs /dev +do_mount_fs devpts /dev/pts +do_mount_fs tmpfs /dev/shm + +mkdir -p /run +mkdir -p /var/run + +do_mknod /dev/console c 5 1 +do_mknod /dev/null c 1 3 +do_mknod /dev/zero c 1 5 + +exec sh </dev/console >/dev/console 2>/dev/console diff --git a/meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb b/meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb new file mode 100644 index 0000000000..b7defff6fa --- /dev/null +++ b/meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb @@ -0,0 +1,14 @@ +SUMMARY = "Extremely basic live image init script" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420" +SRC_URI = "file://init-debug.sh" + +S = "${WORKDIR}" + +do_install() { + install -m 0755 ${WORKDIR}/init-debug.sh ${D}/init +} + +inherit allarch + +FILES_${PN} += " /init " |