3 # Copyright (c) 2003 Intel Corporation
6 # Copyright (c) 2004-2006 The Trustees of Princeton University
11 from Exceptions import *
15 def kernelHasMkinitrd():
16 # Older bootcds only support LinuxThreads. This hack is to get mkinitrd
17 # to run without segfaulting by using /lib/obsolete/linuxthreads
18 kver = os.popen("/bin/uname -r", "r").readlines()[0].rstrip().split(".")
21 elif int(kver[1]) <=4:
26 # 14:42:27(UTC) No module dm-mem-cache found for kernel 2.6.22.19-vs2.3.0.34.33.onelab, aborting.
27 # http://kbase.redhat.com/faq/docs/DOC-16528;jsessionid=7E984A99DE8DB094D9FB08181C71717C.ab46478d
28 def bypassRaidIfNeeded(sysimg_path):
30 [ a,b,c,d]=file('%s/etc/redhat-release'%sysimg_path).readlines()[0].strip().split()
31 if a !='CentOS': return
32 [major,minor]=[int(x) for x in c.split('.')]
34 utils.sysexec_noerr('echo "DMRAID=no" >> %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
35 utils.sysexec_noerr('chmod 755 %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
42 Rebuilds the system initrd, on first install or in case the
46 log.write( "\n\nStep: Rebuilding initrd\n" )
48 # make sure we have the variables we need
50 SYSIMG_PATH= vars["SYSIMG_PATH"]
52 raise ValueError, "SYSIMG_PATH"
54 PARTITIONS= vars["PARTITIONS"]
55 if PARTITIONS == None:
56 raise ValueError, "PARTITIONS"
59 raise BootManagerException, "Missing variable in vars: %s\n" % var
60 except ValueError, var:
61 raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
63 # mkinitrd needs /dev and /proc to do the right thing.
64 # /proc is already mounted, so bind-mount /dev here
65 # xxx tmp - trying to work around the f14 case:
66 # check that /dev/ is mounted with devtmpfs
67 # tmp - sysexec_noerr not returning what one would expect
68 # if utils.sysexec_noerr ("grep devtmpfs /proc/mounts") != 0:
69 utils.sysexec_noerr("mount -t devtmpfs none /dev")
70 utils.sysexec("mount -o bind /dev %s/dev" % SYSIMG_PATH)
71 utils.sysexec("mount -t sysfs none %s/sys" % SYSIMG_PATH)
73 initrd, kernel_version= systeminfo.getKernelVersion(vars,log)
75 utils.removefile( "%s/boot/%s" % (SYSIMG_PATH, initrd) )
77 print "%s/boot/%s is already removed" % (SYSIMG_PATH, initrd)
80 bypassRaidIfNeeded(SYSIMG_PATH)
81 if kernelHasMkinitrd() == True:
82 # specify ext3 for fedora14 and above as their default fs is ext4
83 utils.sysexec_chroot( SYSIMG_PATH, "mkinitrd -v --with=ext3 --allow-missing /boot/initrd-%s.img %s" % \
84 (kernel_version, kernel_version), log )
86 shutil.copy("./mkinitrd.sh","%s/tmp/mkinitrd.sh" % SYSIMG_PATH)
87 os.chmod("%s/tmp/mkinitrd.sh" % SYSIMG_PATH, 755)
88 utils.sysexec_chroot( SYSIMG_PATH, "/tmp/mkinitrd.sh %s" % (kernel_version))
90 utils.sysexec_noerr("umount %s/sys" % SYSIMG_PATH)
91 utils.sysexec_noerr("umount %s/dev" % SYSIMG_PATH)