+def kernelHasMkinitrd():
+ # Older bootcds only support LinuxThreads. This hack is to get mkinitrd
+ # to run without segfaulting by using /lib/obsolete/linuxthreads
+ kver = os.popen("/bin/uname -r", "r").readlines()[0].rstrip().split(".")
+ if int(kver[1]) > 4:
+ return True
+ elif int(kver[1]) <=4:
+ return False
+
+
+# for centos5.3
+# 14:42:27(UTC) No module dm-mem-cache found for kernel 2.6.22.19-vs2.3.0.34.33.onelab, aborting.
+# http://kbase.redhat.com/faq/docs/DOC-16528;jsessionid=7E984A99DE8DB094D9FB08181C71717C.ab46478d
+def bypassRaidIfNeeded(sysimg_path):
+ try:
+ [ a,b,c,d]=file('%s/etc/redhat-release'%sysimg_path).readlines()[0].strip().split()
+ if a !='CentOS': return
+ [major,minor]=[int(x) for x in c.split('.')]
+ if minor >= 3:
+ utils.sysexec_noerr('echo "DMRAID=no" >> %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
+ utils.sysexec_noerr('chmod 755 %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
+ except:
+ pass
+
+