bugfix (would not find kernel at all)

[bootmanager.git] / source / steps / ChainBootNode.py

diff --git a/source/steps/ChainBootNode.py b/source/steps/ChainBootNode.py
index d298dea..98c4969 100644 (file)
--- a/source/steps/ChainBootNode.py
+++ b/source/steps/ChainBootNode.py
@@ -168,29 +168,39 @@ def Run(vars, log):
             major_version = int(kversion[0]) # Check if the string looks like a kernel version
         except:
             # Try a different method for non-rpm-based distributions
-            kversion = os.popen("ls -lrt {}/lib/modules | tail -1 | awk '{print $9;}'"\
+            kversion = os.popen("ls -lrt {}/lib/modules | tail -1 | awk '{{print $9;}}'"\
                                 .format(SYSIMG_PATH)).read().rstrip()
 
-        utils.sysexec("cp {}/boot/vmlinuz-{} /tmp/kernel".format(SYSIMG_PATH, kversion), log)
-        candidates = []
+        # kernel and initrd come in various locations depending on the distro
+
+        kernel_candidates = []
+        kernel_candidates.append("/boot/vmlinuz-{}*".format(kversion))
+        # on f23 starting dec. 2015 - what a twisted naming scheme
+        kernel_candidates.append("/boot/*/{}*/linux".format(kversion))
+
+        initrd_candidates = []
         # f16/18: expect initramfs image here
-        candidates.append ("/boot/initramfs-{}.img".format(kversion))
+        initrd_candidates.append ("/boot/initramfs-{}.img".format(kversion))
         # f20: uses a uid of some kind, e.g. /boot/543f88c129de443baaa65800cf3927ce/<kversion>/initrd
-        candidates.append ("/boot/*/{}/initrd".format(kversion))
+        initrd_candidates.append ("/boot/*/{}/initrd".format(kversion))
         # Ubuntu:
-        candidates.append ("/boot/initrd.img-{}".format(kversion))
-        def find_file_in_sysimg (candidates):
+        initrd_candidates.append ("/boot/initrd.img-{}".format(kversion))
+
+        def install_from_sysimg_to_tmp (candidates, name):
             import glob
+            found = None
             for pattern in candidates:
                 matches = glob.glob(SYSIMG_PATH+pattern)
-                log.write("locating initrd: found {} matches in {}\n".format(len(matches), pattern))
+                log.write("locating {}: found {} matches in {}\n".format(name, len(matches), pattern))
                 if matches:
-                    return matches[0]
-        initrd = find_file_in_sysimg(candidates)
-        if initrd:
-            utils.sysexec("cp {} /tmp/initrd".format(initrd), log)
-        else:
-            raise Exception("Unable to locate initrd - bailing out")
+                    found = matches[0]
+                    break
+            if not found:
+                raise Exception("Unable to locate {} for kexec'ing".format(name))
+            utils.sysexec("cp {} /tmp/{}".format(found, name))
+
+        install_from_sysimg_to_tmp(kernel_candidates, 'kernel')
+        install_from_sysimg_to_tmp(initrd_candidates, 'initrd')
 
     BootAPI.save(vars)