--- /dev/null
+diff -Nurp yum-2.9.6.orig/cli.py yum-2.9.6/cli.py
+--- yum-2.9.6.orig/cli.py 2006-09-06 06:15:49.000000000 +0200
++++ yum-2.9.6/cli.py 2006-09-25 09:08:06.000000000 +0200
+@@ -123,7 +123,7 @@ yum [options] < update | install | info
+ action="store_true", default=False,
+ help="run entirely from cache, don't update cache")
+ self.optparser.add_option("-c", "", dest="conffile", action="store",
+- default='/etc/yum.conf', help="config file location",
++ default=None, help="config file location",
+ metavar=' [config file]')
+ self.optparser.add_option("-R", "", dest="sleeptime", action="store",
+ type='int', default=None, help="maximum command wait time",
+@@ -175,9 +175,12 @@ yum [options] < update | install | info
+
+ # If the conf file is inside the installroot - use that.
+ # otherwise look for it in the normal root
+- if opts.installroot:
+- if os.access(opts.installroot+'/'+opts.conffile, os.R_OK):
++ if opts.conffile==None:
++ opts.conffile = '/etc/yum.conf'
++ if opts.installroot and os.access(opts.installroot+'/'+opts.conffile, os.R_OK):
+ opts.conffile = opts.installroot+'/'+opts.conffile
++
++ if opts.installroot:
+ root=opts.installroot
+ else:
+ root = '/'
+diff -Nurp yum-2.9.6.orig/docs/yum.conf.5 yum-2.9.6/docs/yum.conf.5
+--- yum-2.9.6.orig/docs/yum.conf.5 2006-06-19 03:28:22.000000000 +0200
++++ yum-2.9.6/docs/yum.conf.5 2006-09-25 09:02:50.000000000 +0200
+@@ -23,8 +23,10 @@ The [main] section must exist for yum to
+ following options:
+
+ .IP \fBcachedir\fR
+-Directory where yum should store its cache and db files. The default is
+-`/var/cache/yum'.
++Directory where yum should store its cache and db files. The default
++is `/var/cache/yum'. Unless the prefixes `hostfs://' or `chrootfs://'
++are used, some magic will be applied to determine the real path in
++combination with `--installroot'.
+
+ .IP \fBkeepcache\fR
+ Either `1' or `0'. Determines whether or not yum keeps the cache
+@@ -40,6 +42,10 @@ documented in \fB[repository] options\fR
+ repositories defined in /etc/yum.conf to form the complete set of repositories
+ that yum will use.
+
++Unless the prefixes `hostfs://' or `chrootfs://' are used, some magic
++will be applied to determine the real path in combination with
++`--installroot'.
++
+ .IP \fBdebuglevel\fR
+ Debug message output level. Practical range is 0\-10. Default is `2'.
+
+@@ -47,7 +53,10 @@ Debug message output level. Practical ra
+ Error message output level. Practical range is 0\-10. Default is `2'.
+
+ .IP \fBlogfile\fR
+-Full directory and file name for where yum should write its log file.
++Full directory and file name for where yum should write its log
++file. Unless the prefixes `hostfs://' or `chrootfs://' are used,
++some magic will be applied to determine the real path in combination
++with `--installroot'.
+
+ .IP \fBgpgcheck\fR
+ Either `1' or `0'. This tells yum whether or not it should perform a GPG
+diff -Nurp yum-2.9.6.orig/yum/config.py yum-2.9.6/yum/config.py
+--- yum-2.9.6.orig/yum/config.py 2006-06-19 03:28:22.000000000 +0200
++++ yum-2.9.6/yum/config.py 2006-09-25 09:12:36.000000000 +0200
+@@ -481,6 +481,26 @@ class StartupConf(BaseConfig):
+ pluginpath = ListOption(['/usr/lib/yum-plugins'])
+ pluginconfpath = ListOption(['/etc/yum/pluginconf.d'])
+
++ def getRootedPath(self, path, enforce_default=False, defaults_to_host=False):
++ instroot = getattr(self, 'installroot', None)
++ if instroot==None:
++ return path
++
++ if path.startswith('hostfs://'): res = path[9:]
++ elif path.startswith('chrootfs://'): res = instroot + '/' + path[11:]
++ else:
++ tmp = instroot + '/' + path
++
++ if enforce_default:
++ if defaults_to_host: res = path
++ else: res = tmp
++ else:
++ if os.path.exists(tmp): res = tmp
++ elif defaults_to_host: res = path
++ else: res = tmp
++
++ return res
++
+ class YumConf(StartupConf):
+ '''
+ Configuration option definitions for yum.conf\'s [main] section.
+@@ -493,6 +513,7 @@ class YumConf(StartupConf):
+ cachedir = Option('/var/cache/yum')
+ keepcache = BoolOption(True)
+ logfile = Option('/var/log/yum.log')
++ lockfile = Option('/var/run/yum.pid')
+ reposdir = ListOption(['/etc/yum/repos.d', '/etc/yum.repos.d'])
+ syslog_ident = Option()
+ syslog_facility = Option('LOG_DAEMON')
+@@ -616,9 +637,9 @@ def readMainConfig(startupconf):
+ yumconf.populate(startupconf._parser, 'main')
+
+ # Apply the installroot to directory options
+- for option in ('cachedir', 'logfile'):
++ for option in ('cachedir', 'logfile', 'lockfile'):
+ path = getattr(yumconf, option)
+- setattr(yumconf, option, yumconf.installroot + path)
++ setattr(yumconf, option, yumconf.getRootedPath(path))
+
+ # Add in some extra attributes which aren't actually configuration values
+ yumconf.yumvar = vars
+diff -Nurp yum-2.9.6.orig/yum/__init__.py yum-2.9.6/yum/__init__.py
+--- yum-2.9.6.orig/yum/__init__.py 2006-09-06 06:18:20.000000000 +0200
++++ yum-2.9.6/yum/__init__.py 2006-09-25 09:02:50.000000000 +0200
+@@ -171,8 +171,7 @@ class YumBase(depsolve.Depsolve):
+ # (typically /etc/yum.repos.d and /etc/yum/repos.d)
+ parser = config.IncludedDirConfigParser(vars=self.yumvar)
+ for reposdir in self.conf.reposdir:
+- if os.path.exists(self.conf.installroot+'/'+reposdir):
+- reposdir = self.conf.installroot + '/' + reposdir
++ reposdir = self.conf.getRootedPath(reposdir)
+
+ if os.path.isdir(reposdir):
+ #XXX: why can't we just pass the list of files?
+@@ -502,16 +501,20 @@ class YumBase(depsolve.Depsolve):
+
+ self.verbose_logger.log(logginglevels.INFO_2, 'Finished')
+
+- def doLock(self, lockfile):
++ def __getLockfileName(self):
++ lockfile = self.conf.lockfile
++ return self.conf.getRootedPath(lockfile,
++ enforce_default = True,
++ defaults_to_host = False)
++
++ def doLock(self):
+ """perform the yum locking, raise yum-based exceptions, not OSErrors"""
+
+ # if we're not root then we don't lock - just return nicely
+ if self.conf.uid != 0:
+ return
+
+- root = self.conf.installroot
+- lockfile = root + '/' + lockfile # lock in the chroot
+- lockfile = os.path.normpath(lockfile) # get rid of silly preceding extra /
++ lockfile = self.__getLockfileName()
+
+ mypid=str(os.getpid())
+ while not self._lock(lockfile, mypid, 0644):
+@@ -537,15 +540,14 @@ class YumBase(depsolve.Depsolve):
+ msg = 'Existing lock %s: another copy is running. Aborting.' % lockfile
+ raise Errors.LockError(0, msg)
+
+- def doUnlock(self, lockfile):
++ def doUnlock(self):
+ """do the unlock for yum"""
+
+ # if we're not root then we don't lock - just return nicely
+ if self.conf.uid != 0:
+ return
+
+- root = self.conf.installroot
+- lockfile = root + '/' + lockfile # lock in the chroot
++ lockfile=self.__getLockfileName()
+
+ self._unlock(lockfile)
+
+diff -Nurp yum-2.9.6.orig/yummain.py yum-2.9.6/yummain.py
+--- yum-2.9.6.orig/yummain.py 2006-08-19 22:04:33.000000000 +0200
++++ yum-2.9.6/yummain.py 2006-09-25 09:02:50.000000000 +0200
+@@ -62,7 +62,7 @@ def main(args):
+ def unlock():
+ try:
+ base.closeRpmDB()
+- base.doUnlock(YUM_PID_FILE)
++ base.doUnlock()
+ except Errors.LockError, e:
+ sys.exit(200)
+
+@@ -88,7 +88,7 @@ def main(args):
+ except Errors.YumBaseError, e:
+ exFatal(e)
+ try:
+- base.doLock(YUM_PID_FILE)
++ base.doLock()
+ except Errors.LockError, e:
+ logger.critical('%s', e.msg)
+ sys.exit(200)