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#
# harddrive.py - Install method for hard drive installs
#
# Copyright 1999-2006 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# General Public License.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
from installmethod import InstallMethod, FileCopyException
from image import findIsoImages, ImageInstallMethod
import shutil
import os
import sys
import isys
import iutil
import string
from rhpl.translate import _, cat, N_
from constants import *
import logging
log = logging.getLogger("anaconda")
# Install from one or more iso images
class HardDriveInstallMethod(ImageInstallMethod):
def getMethodUri(self):
return "file://%s" % self.tree
def copyFileToTemp(self, filename):
wasmounted = self.mediaIsMounted
self.switchMedia(1, filename)
path = ImageInstallMethod.copyFileToTemp(self, filename)
self.switchMedia(wasmounted)
return path
def badPackageError(self, pkgname):
return _("The file %s cannot be opened. This is due to a missing "
"file or perhaps a corrupt package. Please verify your "
"installation images and that you have all the required "
"media.\n\n"
"If you reboot, your system will be left in an inconsistent "
"state that will likely require reinstallation.\n\n") % pkgname
# mounts disc image cdNum under self.tree
def mountMedia(self, cdNum):
if self.mediaIsMounted:
raise SystemError, "trying to mount already-mounted iso image!"
self.mountDirectory()
retry = True
while retry:
try:
isoImage = self.isoDir + '/' + self.path + '/' + self.discImages[cdNum]
isys.makeDevInode("loop3", "/tmp/loop3")
isys.losetup("/tmp/loop3", isoImage, readOnly = 1)
isys.mount("loop3", self.tree, fstype = 'iso9660', readOnly = 1);
self.mediaIsMounted = cdNum
retry = False
except:
ans = self.messageWindow( _("Missing ISO 9660 Image"),
_("The installer has tried to mount "
"image #%s, but cannot find it on "
"the hard drive.\n\n"
"Please copy this image to the "
"drive and click Retry. Click Reboot "
" to abort the installation.")
% (cdNum,), type="custom",
custom_icon="warning",
custom_buttons=[_("_Reboot"),
_("Re_try")])
if ans == 0:
sys.exit(0)
elif ans == 1:
self.discImages = findIsoImages(self.isoPath, self.messageWindow)
def umountMedia(self):
if self.mediaIsMounted:
isys.umount(self.tree)
isys.makeDevInode("loop3", "/tmp/loop3")
isys.unlosetup("/tmp/loop3")
self.umountDirectory()
self.mediaIsMounted = 0
# This mounts the directory containing the iso images, and places the
# mount point in self.isoDir. It's only used directly by __init__;
# everything else goes through switchMedia
def mountDirectory(self):
if (self.isoDirIsMounted):
raise SystemError, "trying to mount already-mounted image!"
f = open("/proc/mounts", "r")
l = f.readlines()
f.close()
for line in l:
s = string.split(line)
if s[0] == "/dev/" + self.device:
self.isoDir = s[1] + "/"
return
isys.mount(self.device, "/tmp/isodir", fstype = self.fstype,
readOnly = 1);
self.isoDir = "/tmp/isodir/"
self.isoDirIsMounted = 1
def umountDirectory(self):
if self.isoDirIsMounted:
isys.umount(self.isoDir)
self.isoDirIsMounted = 0
# return reference to file specified on ISO #1
# mounts ISO #1, copies file to destdir, umounts ISO #1
# will probably do bad things if called during package installation
# returns None if file doesn't exist
def getFilename(self, filename, callback=None, destdir=None, retry=1):
if destdir is None:
destdir = self.getTempPath()
fn = destdir + '/' + os.path.basename(filename)
self.switchMedia(1, filename)
try:
shutil.copy(self.tree + '/' + filename, fn)
except:
fn = None
return fn
def switchMedia(self, mediano, filename=""):
if mediano != self.mediaIsMounted:
log.info("switching from iso %s to %s for %s" % (self.mediaIsMounted, mediano, filename))
self.umountMedia()
self.mountMedia(mediano)
def systemMounted(self, fsset, mntPoint):
self.switchMedia(1)
def systemUnmounted(self):
self.umountMedia()
def filesDone(self):
# we're trying to unmount the source image at the end. if it
# fails, we'll reboot soon enough anyway
try:
self.umountMedia()
except:
log.warning("unable to unmount media")
# we cannot remove the partition we are hosting hard drive install from
def protectedPartitions(self):
return [self.device]
def __init__(self, method, rootPath, intf):
"""@param method hd://device:fstype:/path"""
method = method[5:]
device = method[0:method.index(":")]
tmpmethod = method[method.index(":") + 1:]
fstype = tmpmethod[0:tmpmethod.index("/")]
path = tmpmethod[tmpmethod.index("/") + 1:]
ImageInstallMethod.__init__(self, method, rootPath, intf)
self.device = device
self.path = path
self.fstype = fstype
self.isoDirIsMounted = 0
self.mediaIsMounted = 0
self.messageWindow = intf.messageWindow
self.currentMedia = []
self.tree = "/tmp/isomedia/"
# Mount the partition containing the ISO images just long enough for
# us to build up a list of all the path names.
self.mountDirectory()
self.discImages = findIsoImages(self.isoDir + '/' + self.path, self.messageWindow)
self.umountDirectory()
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