#!/usr/bin/python # # Copyright (c) 2003 Intel Corporation # All rights reserved. # # Copyright (c) 2004-2006 The Trustees of Princeton University # All rights reserved. import os from Exceptions import * import utils import systeminfo # 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, log): 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 , log ) utils.sysexec_noerr('chmod 755 %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path, log ) except: pass def Run( vars, log ): """ Rebuilds the system initrd, on first install or in case the hardware changed. """ log.write( "\n\nStep: Rebuilding initrd\n" ) # make sure we have the variables we need try: SYSIMG_PATH= vars["SYSIMG_PATH"] if SYSIMG_PATH == "": raise ValueError, "SYSIMG_PATH" PARTITIONS= vars["PARTITIONS"] if PARTITIONS == None: raise ValueError, "PARTITIONS" except KeyError, var: raise BootManagerException, "Missing variable in vars: %s\n" % var except ValueError, var: raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var # mkinitrd needs /dev and /proc to do the right thing. # /proc is already mounted, so bind-mount /dev here # xxx tmp - trying to work around the f14 case: # check that /dev/ is mounted with devtmpfs # tmp - sysexec_noerr not returning what one would expect # if utils.sysexec_noerr ("grep devtmpfs /proc/mounts") != 0: utils.sysexec_noerr("mount -t devtmpfs none /dev") utils.sysexec("mount -o bind /dev %s/dev" % SYSIMG_PATH) utils.sysexec("mount -t sysfs none %s/sys" % SYSIMG_PATH) initrd, kernel_version= systeminfo.getKernelVersion(vars,log) try: utils.removefile( "%s/boot/%s" % (SYSIMG_PATH, initrd) ) except: print "%s/boot/%s is already removed" % (SYSIMG_PATH, initrd) # hack for CentOS 5.3 bypassRaidIfNeeded(SYSIMG_PATH , log ) utils.sysexec_chroot( SYSIMG_PATH, "mkinitrd -v --allow-missing /boot/initrd-%s.img %s" % \ (kernel_version, kernel_version), log ) utils.sysexec_noerr("umount %s/sys" % SYSIMG_PATH , log ) utils.sysexec_noerr("umount %s/dev" % SYSIMG_PATH , log)