diff options
| author | Rom Lemarchand <romlem@android.com> | 2015-07-06 16:50:33 -0700 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2017-12-05 17:51:12 +0100 |
| commit | ac19aa617991eecc45db9734991af33315f0bf16 (patch) | |
| tree | 76e21804afbe87859d657488adc8f46952ea7791 /init/initramfs.c | |
| parent | 701497f022711f9c63fd8568362774554b34e4ed (diff) | |
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 <romlem@google.com>
Diffstat (limited to 'init/initramfs.c')
| -rw-r--r-- | init/initramfs.c | 19 |
1 files changed, 18 insertions, 1 deletions
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 <linux/dirent.h> #include <linux/syscalls.h> #include <linux/utime.h> +#include <linux/initramfs.h> 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) { |