diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c index 51067e2db509..b4e9e79968a1 100644 --- a/init/main.c +++ b/init/main.c @@ -1040,6 +1040,7 @@ static int __ref kernel_init(void *unused) static noinline void __init kernel_init_freeable(void) { + struct stat console_stat; /* * Wait until kthreadd is all set-up. */ @@ -1073,6 +1074,12 @@ static noinline void __init kernel_init_freeable(void) do_basic_setup(); + /* Use /dev/console to infer if the rootfs is setup properly */ + if (sys_newlstat((char __user *) "/dev/console", (struct stat __user *) &console_stat) + || !S_ISCHR(console_stat.st_mode)) { + panic("/dev/console is missing or not a character device!\nPlease ensure your rootfs is properly configured\n"); + } + /* Open the /dev/console on the rootfs, this should never fail */ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) pr_err("Warning: unable to open an initial console.\n"); |