diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c index 7ae824545265..cc5e538e1ba1 100644 --- a/init/main.c +++ b/init/main.c @@ -1102,6 +1102,9 @@ static int __ref kernel_init(void *unused) static noinline void __init kernel_init_freeable(void) { +#ifndef CONFIG_BLK_DEV_INITRD + struct kstat console_stat; +#endif /* * Wait until kthreadd is all set-up. */ @@ -1135,6 +1138,18 @@ static noinline void __init kernel_init_freeable(void) do_basic_setup(); +#ifndef CONFIG_BLK_DEV_INITRD + /* + * Use /dev/console to infer if the rootfs is setup properly. + * In case of initrd or initramfs /dev/console might be instantiated + * later by /init so don't do this check for CONFIG_BLK_DEV_INITRD + */ + if (vfs_lstat((char __user *) "/dev/console", (struct kstat __user *) &console_stat) + || !S_ISCHR(console_stat.mode)) { + panic("/dev/console is missing or not a character device!\nPlease ensure your rootfs is properly configured\n"); + } +#endif + /* Open the /dev/console on the rootfs, this should never fail */ if (ksys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) pr_err("Warning: unable to open an initial console.\n"); |