xen/pygrub-boot-legacy-sles.patch

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Index: xen-4.17.2-testing/tools/pygrub/src/pygrub
===================================================================
--- xen-4.17.2-testing.orig/tools/pygrub/src/pygrub
+++ xen-4.17.2-testing/tools/pygrub/src/pygrub
@@ -579,7 +579,7 @@ class Grub:
self.cf.filename = f
break
if self.__dict__.get('cf', None) is None:
- raise RuntimeError("couldn't find bootloader config file in the image provided.")
+ return
f = fs.open_file(self.cf.filename)
# limit read size to avoid pathological cases
buf = f.read(FS_READ_MAX)
@@ -754,6 +754,20 @@ def run_grub(file, entry, fs, cfg_args):
g = Grub(file, fs)
+ # If missing config or grub has no menu entries to select, look for
+ # vmlinuz-xen and initrd-xen in /boot
+ if g.__dict__.get('cf', None) is None or len(g.cf.images) == 0 or re.search(r"xen(-pae)?\.gz",g.cf.images[0].kernel[1]):
+ if not list_entries:
+ chosencfg = { "kernel": None, "ramdisk": None, "args": "" }
+ chosencfg = sniff_xen_kernel(fs, incfg)
+ if chosencfg["kernel"] and chosencfg["ramdisk"]:
+ chosencfg["args"] = cfg_args
+ return chosencfg
+ if g.__dict__.get('cf', None) is None:
+ raise RuntimeError("couldn't find bootloader config file in the image provided.")
+ else:
+ return
+
if list_entries:
for i in range(len(g.cf.images)):
img = g.cf.images[i]
@@ -840,6 +854,19 @@ def sniff_netware(fs, cfg):
return cfg
+def sniff_xen_kernel(fs, cfg):
+ if not cfg["kernel"]:
+ if fs.file_exists('/boot/vmlinuz-xen'):
+ cfg["kernel"] = '/boot/vmlinuz-xen'
+ elif fs.file_exists('/boot/vmlinuz-xenpae'):
+ cfg["kernel"] = '/boot/vmlinuz-xenpae'
+ if cfg["kernel"] and not cfg["ramdisk"]:
+ if fs.file_exists('/boot/initrd-xen'):
+ cfg["ramdisk"] = '/boot/initrd-xen'
+ elif fs.file_exists('/boot/initrd-xenpae'):
+ cfg["ramdisk"] = '/boot/initrd-xenpae'
+ return cfg
+
def format_sxp(kernel, ramdisk, args):
s = "linux (kernel %s)" % repr(kernel)
if ramdisk:
@@ -918,7 +945,7 @@ if __name__ == "__main__":
debug = False
not_really = False
output_format = "sxp"
- output_directory = "/var/run/xen/pygrub/"
+ output_directory = "/var/run/xen"
uid = None
# what was passed in