diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/sysboot.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cmd/sysboot.c b/cmd/sysboot.c index 63a7806debe..d14c570d96a 100644 --- a/cmd/sysboot.c +++ b/cmd/sysboot.c @@ -77,6 +77,10 @@ static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc, if (argc < 6) { filename = env_get("bootfile"); + if (!filename) { + printf("Specify a filename or set the ${bootfile} environment variable\n"); + return 1; + } } else { filename = argv[5]; env_set("bootfile", filename); |