3 # Copyright (c) 2003 Intel Corporation
6 # Copyright (c) 2004-2006 The Trustees of Princeton University
11 from Exceptions import *
16 def kernelHasMkinitrd():
17 # Older bootcds only support LinuxThreads. This hack is to get mkinitrd
18 # to run without segfaulting by using /lib/obsolete/linuxthreads
19 kver = os.popen("/bin/uname -r", "r").readlines()[0].rstrip().split(".")
22 elif int(kver[1]) <=4:
27 # 14:42:27(UTC) No module dm-mem-cache found for kernel 2.6.22.19-vs2.3.0.34.33.onelab, aborting.
28 # http://kbase.redhat.com/faq/docs/DOC-16528;jsessionid=7E984A99DE8DB094D9FB08181C71717C.ab46478d
29 def bypassRaidIfNeeded(sysimg_path):
31 [ a,b,c,d]=file('%s/etc/redhat-release'%sysimg_path).readlines()[0].strip().split()
32 if a !='CentOS': return
33 [major,minor]=[int(x) for x in c.split('.')]
35 utils.sysexec_noerr('echo "DMRAID=no" >> %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
36 utils.sysexec_noerr('chmod 755 %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
43 Rebuilds the system initrd, on first install or in case the
47 log.write( "\n\nStep: Rebuilding initrd\n" )
49 # make sure we have the variables we need
51 SYSIMG_PATH= vars["SYSIMG_PATH"]
53 raise ValueError, "SYSIMG_PATH"
55 PARTITIONS= vars["PARTITIONS"]
56 if PARTITIONS == None:
57 raise ValueError, "PARTITIONS"
60 raise BootManagerException, "Missing variable in vars: %s\n" % var
61 except ValueError, var:
62 raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
64 # mkinitrd needs /dev and /proc to do the right thing.
65 # /proc is already mounted, so bind-mount /dev here
66 utils.sysexec("mount -o bind /dev %s/dev" % SYSIMG_PATH)
67 utils.sysexec("mount -t sysfs none %s/sys" % SYSIMG_PATH)
69 initrd, kernel_version= systeminfo.getKernelVersion(vars,log)
71 utils.removefile( "%s/boot/%s" % (SYSIMG_PATH, initrd) )
73 print "%s/boot/%s is already removed" % (SYSIMG_PATH, initrd)
76 bypassRaidIfNeeded(SYSIMG_PATH)
77 if kernelHasMkinitrd() == True:
78 utils.sysexec_chroot( SYSIMG_PATH, "mkinitrd -v /boot/initrd-%s.img %s" % \
79 (kernel_version, kernel_version), log )
81 shutil.copy("./mkinitrd.sh","%s/tmp/mkinitrd.sh" % SYSIMG_PATH)
82 os.chmod("%s/tmp/mkinitrd.sh" % SYSIMG_PATH, 755)
83 utils.sysexec_chroot( SYSIMG_PATH, "/tmp/mkinitrd.sh %s" % (kernel_version))
85 utils.sysexec_noerr("umount %s/sys" % SYSIMG_PATH)
86 utils.sysexec_noerr("umount %s/dev" % SYSIMG_PATH)