From 492716662fbdc08e254dda2c209b320e2bf6c837 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 21 Jul 2016 01:44:46 +0200 Subject: [PATCH] efi_loader: Make exposed image loader path absolute When loading an efi image, we pass it the location it was loaded from. On file system backends, there are no relative paths, so we should always pass in absolute ones. For network paths, we may be relative. This fixes distro booting with grub2 for me when it fetches the grub2 config file from the loader partition. Reported-by: york sun Signed-off-by: Alexander Graf --- cmd/bootefi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/cmd/bootefi.c b/cmd/bootefi.c index 011f62c5b1..d66892e69e 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -290,6 +290,11 @@ void efi_set_bootdev(const char *dev, const char *devnr, const char *path) /* Patch bootefi_image_path to the target file path */ memset(bootefi_image_path[0].str, 0, sizeof(bootefi_image_path[0].str)); - snprintf(devname, sizeof(devname), "%s", path); + if (strcmp(dev, "Net")) { + /* Add leading / to fs paths, because they're absolute */ + snprintf(devname, sizeof(devname), "/%s", path); + } else { + snprintf(devname, sizeof(devname), "%s", path); + } ascii2unicode(bootefi_image_path[0].str, devname); } -- 2.39.5