From ac19aa617991eecc45db9734991af33315f0bf16 Mon Sep 17 00:00:00 2001 From: Rom Lemarchand Date: Mon, 6 Jul 2015 16:50:33 -0700 Subject: initramfs: Add skip_initramfs command line option Add a skip_initramfs option to allow choosing whether to boot using the initramfs or not at runtime. Change-Id: If30428fa748c1d4d3d7b9d97c1f781de5e4558c3 Signed-off-by: Rom Lemarchand --- init/initramfs.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'init/initramfs.c') diff --git a/init/initramfs.c b/init/initramfs.c index a67ef9dbd..43ae0cc9d 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -18,6 +18,7 @@ #include #include #include +#include static __initdata char *message; static void __init error(char *x) @@ -579,9 +580,25 @@ static void __init clean_rootfs(void) } #endif +static int __initdata do_skip_initramfs; + +static int __init skip_initramfs_param(char *str) +{ + if (*str) + return 0; + do_skip_initramfs = 1; + return 1; +} +__setup("skip_initramfs", skip_initramfs_param); + static int __init populate_rootfs(void) { - char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size); + char *err; + + if (do_skip_initramfs) + return default_rootfs(); + + err = unpack_to_rootfs(__initramfs_start, __initramfs_size); if (err) panic(err); /* Failed to decompress INTERNAL initramfs */ if (initrd_start) { -- cgit v1.2.3