From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Tue, 9 Apr 2019 12:30:38 +0200 Subject: [PATCH] Fix systemctl kexec exit status check There's always an error printed even when the systemctl kexec command does succeed. That's because systemctl executes it asynchronously, but the emu loader seems to expect it to be synchronous and that should never return. Also, it's wrong to test if kexecute == 1 since we already know that's the case or otherwise the function wouldn't had called grub_fatal() earlier. Finally, systemctl kexec failing shouldn't be a fatal error since the emu loader fallbacks to executing the kexec command in case of a failure. Signed-off-by: Javier Martinez Canillas --- grub-core/loader/emu/linux.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/grub-core/loader/emu/linux.c b/grub-core/loader/emu/linux.c index fda9e00d2..5b85b225e 100644 --- a/grub-core/loader/emu/linux.c +++ b/grub-core/loader/emu/linux.c @@ -71,8 +71,10 @@ grub_linux_boot (void) (kexecute==1) ? "do-or-die" : "just-in-case"); rc = grub_util_exec (systemctl); - if (kexecute == 1) - grub_fatal (N_("Error trying to perform 'systemctl kexec'")); + if (rc == GRUB_ERR_NONE) + return rc; + + grub_error (rc, N_("Error trying to perform 'systemctl kexec'")); /* need to check read-only root before resetting hard!? */ grub_printf("Performing 'kexec -e'");