def input(self, args, key):
"""Override any input so we can launch rescue mode."""
try:
keyid = int(key) - 1
except ValueError:
pass
if keyid == 3:
# quit/reboot
d = YesNoDialog(self.app, _(self.app.quit_message))
self.app.switch_screen_modal(d)
if d.answer:
iutil.execWithRedirect("systemctl", ["--no-wall", "reboot"])
elif keyid == 2:
# skip to/run shell
run_shell()
elif (keyid == 1 or keyid == 0):
# user chose 0 (continue/rw-mount) or 1 (ro-mount)
# decrypt any luks devices
self._unlock_devices()
# this sleep may look pointless, but it seems necessary, in
# order for some task to complete; otherwise no existing
# installations are discovered. IOW, this is a hack.
time.sleep(2)
# attempt to find previous installations
roots = findExistingInstallations(self.storage.devicetree)
if len(roots) == 1:
self._root = roots[0]
elif len(roots) > 1:
# have to prompt user for which root to mount
rootspoke = RootSpoke(self.app, self.data, self.storage,
self.payload, self.instclass, roots)
self.app.switch_screen_modal(rootspoke)
self._root = rootspoke.root
# if only one root detected, or user has chosen which root
# to mount, go ahead and do that
newspoke = RescueMountSpoke(self.app, self.data,
self.storage, self.payload, self.instclass, keyid, self._root)
self.app.switch_screen_modal(newspoke)
self.close()
else:
# user entered some invalid number choice
return key
return INPUT_PROCESSED
def input(self, args, key):
"""Override any input so we can launch rescue mode."""
try:
keyid = int(key) - 1
except ValueError:
pass
if keyid == 3:
# quit/reboot
d = YesNoDialog(self.app, _(self.app.quit_message))
self.app.switch_screen_modal(d)
if d.answer:
iutil.execWithRedirect("systemctl", ["--no-wall", "reboot"])
elif keyid == 2:
# skip to/run shell
run_shell()
elif (keyid == 1 or keyid == 0):
# user chose 0 (continue/rw-mount) or 1 (ro-mount)
# decrypt any luks devices
self._unlock_devices()
# this sleep may look pointless, but it seems necessary, in
# order for some task to complete; otherwise no existing
# installations are discovered. IOW, this is a hack.
time.sleep(2)
# attempt to find previous installations
roots = findExistingInstallations(self.storage.devicetree)
if len(roots) == 1:
self._root = roots[0]
elif len(roots) > 1:
# have to prompt user for which root to mount
rootspoke = RootSpoke(self.app, self.data, self.storage,
self.payload, self.instclass, roots)
self.app.switch_screen_modal(rootspoke)
self._root = rootspoke.root
# if only one root detected, or user has chosen which root
# to mount, go ahead and do that
newspoke = RescueMountSpoke(self.app, self.data, self.storage,
self.payload, self.instclass, keyid,
self._root)
self.app.switch_screen_modal(newspoke)
self.close()
else:
# user entered some invalid number choice
return key
return INPUT_PROCESSED
def doRescue(intf, rescue_mount, ksdata):
import blivet
# XXX: hook the exception handler wrapper that turns off snack first
orig_hook = sys.excepthook
sys.excepthook = lambda ty, val, tb: _exception_handler_wrapper(orig_hook,
intf.screen,
ty, val, tb)
for f in ["services", "protocols", "group", "joe", "man.config",
"nsswitch.conf", "selinux", "mke2fs.conf"]:
try:
os.symlink('/mnt/runtime/etc/' + f, '/etc/' + f)
except OSError:
pass
# Early shell access with no disk access attempts
if not rescue_mount:
# the %post should be responsible for mounting all needed file systems
# NOTE: 1st script must be bash or simple python as nothing else might be available in the rescue image
if flags.automatedInstall and ksdata.scripts:
runPostScripts(ksdata.scripts)
else:
runShell()
sys.exit(0)
if flags.automatedInstall:
readOnly = ksdata.rescue.romount
else:
# prompt to see if we should try and find root filesystem and mount
# everything in /etc/fstab on that root
while True:
rc = ButtonChoiceWindow(intf.screen, _("Rescue"),
_("The rescue environment will now attempt to find your "
"Linux installation and mount it under the directory "
"%s. You can then make any changes required to your "
"system. If you want to proceed with this step choose "
"'Continue'. You can also choose to mount your file systems "
"read-only instead of read-write by choosing 'Read-Only'. "
"\n\n"
"If for some reason this process fails you can choose 'Skip' "
"and this step will be skipped and you will go directly to a "
"command shell.\n\n") % (iutil.getSysroot(),),
[_("Continue"), _("Read-Only"), _("Skip")])
if rc == _("Skip").lower():
runShell(intf.screen)
sys.exit(0)
else:
readOnly = rc == _("Read-Only").lower()
break
sto = blivet.Blivet(ksdata=ksdata)
storageInitialize(sto, ksdata, [])
_unlock_devices(intf, sto)
roots = osinstall.findExistingInstallations(sto.devicetree)
if not roots:
root = None
elif len(roots) == 1:
root = roots[0]
else:
height = min(len(roots), 12)
if height == 12:
scroll = 1
else:
scroll = 0
lst = []
for root in roots:
lst.append("%s" % root.name)
(button, choice) = \
ListboxChoiceWindow(intf.screen, _("System to Rescue"),
_("Which device holds the root partition "
"of your installation?"), lst,
[_("OK"), _("Exit")], width=30,
scroll=scroll, height=height,
help="multipleroot")
if button == _("Exit").lower():
root = None
else:
root = roots[choice]
rootmounted = False
if root:
try:
if not flags.imageInstall:
msg = _("The system will reboot automatically when you exit "
"from the shell.")
else:
msg = _("Run %s to unmount the system "
"when you are finished.") % ANACONDA_CLEANUP
mountExistingSystem(sto.fsset, root.device, readOnly=readOnly)
if flags.automatedInstall:
log.info("System has been mounted under: %s", iutil.getSysroot())
else:
ButtonChoiceWindow(intf.screen, _("Rescue"),
_("Your system has been mounted under %(rootPath)s.\n\n"
"Press <return> to get a shell. If you would like to "
"make your system the root environment, run the command:\n\n"
"\tchroot %(rootPath)s\n\n%(msg)s") %
{'rootPath': iutil.getSysroot(),
'msg': msg},
[_("OK")])
rootmounted = True
# now turn on swap
if not readOnly:
try:
sto.turnOnSwap()
except StorageError:
log.error("Error enabling swap")
# and selinux too
if flags.selinux:
# we have to catch the possible exception
# because we support read-only mounting
try:
fd = open("%s/.autorelabel" % iutil.getSysroot(), "w+")
fd.close()
except IOError:
log.warning("cannot touch /.autorelabel")
# set a library path to use mounted fs
libdirs = os.environ.get("LD_LIBRARY_PATH", "").split(":")
mounted = ["/mnt/sysimage%s" % mdir for mdir in libdirs]
iutil.setenv("LD_LIBRARY_PATH", ":".join(libdirs + mounted))
# find groff data dir
gversion = None
try:
glst = os.listdir("/mnt/sysimage/usr/share/groff")
except OSError:
pass
else:
# find a directory which is a numeral, its where
# data files are
for gdir in glst:
if re.match(r'\d[.\d]+\d$', gdir):
gversion = gdir
break
if gversion is not None:
gpath = "/mnt/sysimage/usr/share/groff/"+gversion
iutil.setenv("GROFF_FONT_PATH", gpath + '/font')
iutil.setenv("GROFF_TMAC_PATH", "%s:/mnt/sysimage/usr/share/groff/site-tmac" % (gpath + '/tmac',))
# do we have bash?
try:
if os.access("/usr/bin/bash", os.R_OK):
os.symlink("/usr/bin/bash", "/bin/bash")
except OSError:
pass
except (ValueError, LookupError, SyntaxError, NameError):
raise
except Exception as e: # pylint: disable=broad-except
log.error("doRescue caught exception: %s", e)
if flags.automatedInstall:
log.error("An error occurred trying to mount some or all of your system")
else:
if not flags.imageInstall:
msg = _("The system will reboot automatically when you "
"exit from the shell.")
else:
msg = _("Run %s to unmount the system "
"when you are finished.") % ANACONDA_CLEANUP
ButtonChoiceWindow(intf.screen, _("Rescue"),
_("An error occurred trying to mount some or all of your "
"system. Some of it may be mounted under %s.\n\n"
"Press <return> to get a shell.") % iutil.getSysroot() + msg,
[_("OK")])
else:
if flags.automatedInstall and ksdata.reboot.action in [KS_REBOOT, KS_SHUTDOWN]:
log.info("No Linux partitions found")
intf.screen.finish()
print(_("You don't have any Linux partitions. Rebooting.\n"))
sys.exit(0)
else:
if not flags.imageInstall:
msg = _(" The system will reboot automatically when you exit "
"from the shell.")
else:
msg = ""
ButtonChoiceWindow(intf.screen, _("Rescue Mode"),
_("You don't have any Linux partitions. Press "
"return to get a shell.%s") % msg,
[_("OK")], width=50)
msgStr = ""
if rootmounted and not readOnly:
sto.makeMtab()
try:
makeResolvConf(iutil.getSysroot())
except (OSError, IOError) as e:
log.error("error making a resolv.conf: %s", e)
msgStr = _("Your system is mounted under the %s directory.") % (iutil.getSysroot(),)
ButtonChoiceWindow(intf.screen, _("Rescue"), msgStr, [_("OK")])
# we do not need ncurses anymore, shut them down
intf.shutdown()
#create /etc/fstab in ramdisk, so it is easier to work with RO mounted filesystems
makeFStab()
# run %post if we've mounted everything
if rootmounted and not readOnly and flags.automatedInstall:
runPostScripts(ksdata.scripts)
# start shell if reboot wasn't requested
if not flags.automatedInstall or not ksdata.reboot.action in [KS_REBOOT, KS_SHUTDOWN]:
runShell(msg=msgStr)
sys.exit(0)
def doRescue(intf, rescue_mount, ksdata):
import blivet
# XXX: hook the exception handler wrapper that turns off snack first
orig_hook = sys.excepthook
sys.excepthook = lambda ty, val, tb: _exception_handler_wrapper(orig_hook,
intf.screen,
ty, val, tb)
for f in ["services", "protocols", "group", "joe", "man.config",
"nsswitch.conf", "selinux", "mke2fs.conf"]:
try:
os.symlink('/mnt/runtime/etc/' + f, '/etc/' + f)
except OSError:
pass
# Early shell access with no disk access attempts
if not rescue_mount:
# the %post should be responsible for mounting all needed file systems
# NOTE: 1st script must be bash or simple python as nothing else might be available in the rescue image
if flags.automatedInstall and ksdata.scripts:
runPostScripts(ksdata.scripts)
else:
runShell()
sys.exit(0)
if flags.automatedInstall:
readOnly = ksdata.rescue.romount
else:
# prompt to see if we should try and find root filesystem and mount
# everything in /etc/fstab on that root
while True:
rc = ButtonChoiceWindow(intf.screen, _("Rescue"),
_("The rescue environment will now attempt to find your "
"Linux installation and mount it under the directory "
"%s. You can then make any changes required to your "
"system. If you want to proceed with this step choose "
"'Continue'. You can also choose to mount your file systems "
"read-only instead of read-write by choosing 'Read-Only'. "
"\n\n"
"If for some reason this process fails you can choose 'Skip' "
"and this step will be skipped and you will go directly to a "
"command shell.\n\n") % (iutil.getSysroot(),),
[_("Continue"), _("Read-Only"), _("Skip")])
if rc == _("Skip").lower():
runShell(intf.screen)
sys.exit(0)
else:
readOnly = rc == _("Read-Only").lower()
break
sto = blivet.Blivet(ksdata=ksdata)
storageInitialize(sto, ksdata, [])
_unlock_devices(intf, sto)
roots = osinstall.findExistingInstallations(sto.devicetree)
if not roots:
root = None
elif len(roots) == 1:
root = roots[0]
else:
height = min(len(roots), 12)
if height == 12:
scroll = 1
else:
scroll = 0
lst = []
for root in roots:
lst.append("%s" % root.name)
(button, choice) = \
ListboxChoiceWindow(intf.screen, _("System to Rescue"),
_("Which device holds the root partition "
"of your installation?"), lst,
[_("OK"), _("Exit")], width=30,
scroll=scroll, height=height,
help="multipleroot")
if button == _("Exit").lower():
root = None
else:
root = roots[choice]
rootmounted = False
if root:
try:
if not flags.imageInstall:
msg = _("The system will reboot automatically when you exit "
"from the shell.")
else:
msg = _("Run %s to unmount the system "
"when you are finished.") % ANACONDA_CLEANUP
mountExistingSystem(sto.fsset, root.device, readOnly=readOnly)
if flags.automatedInstall:
log.info("System has been mounted under: %s", iutil.getSysroot())
else:
ButtonChoiceWindow(intf.screen, _("Rescue"),
_("Your system has been mounted under %(rootPath)s.\n\n"
"Press <return> to get a shell. If you would like to "
"make your system the root environment, run the command:\n\n"
"\tchroot %(rootPath)s\n\n%(msg)s") %
{'rootPath': iutil.getSysroot(),
'msg': msg},
[_("OK")])
rootmounted = True
# now turn on swap
if not readOnly:
try:
sto.turnOnSwap()
except StorageError:
log.error("Error enabling swap")
# and selinux too
if flags.selinux:
# we have to catch the possible exception
# because we support read-only mounting
try:
fd = open("%s/.autorelabel" % iutil.getSysroot(), "w+")
fd.close()
except IOError:
log.warning("cannot touch /.autorelabel")
# set a library path to use mounted fs
libdirs = os.environ.get("LD_LIBRARY_PATH", "").split(":")
mounted = ["/mnt/sysimage%s" % mdir for mdir in libdirs]
iutil.setenv("LD_LIBRARY_PATH", ":".join(libdirs + mounted))
# find groff data dir
gversion = None
try:
glst = os.listdir("/mnt/sysimage/usr/share/groff")
except OSError:
pass
else:
# find a directory which is a numeral, its where
# data files are
for gdir in glst:
if re.match(r'\d[.\d]+\d$', gdir):
gversion = gdir
break
if gversion is not None:
gpath = "/mnt/sysimage/usr/share/groff/"+gversion
iutil.setenv("GROFF_FONT_PATH", gpath + '/font')
iutil.setenv("GROFF_TMAC_PATH", "%s:/mnt/sysimage/usr/share/groff/site-tmac" % (gpath + '/tmac',))
# do we have bash?
try:
if os.access("/usr/bin/bash", os.R_OK):
os.symlink("/usr/bin/bash", "/bin/bash")
except OSError:
pass
except (ValueError, LookupError, SyntaxError, NameError):
raise
except Exception as e: # pylint: disable=broad-except
log.error("doRescue caught exception: %s", e)
if flags.automatedInstall:
log.error("An error occurred trying to mount some or all of your system")
else:
if not flags.imageInstall:
msg = _("The system will reboot automatically when you "
"exit from the shell.")
else:
msg = _("Run %s to unmount the system "
"when you are finished.") % ANACONDA_CLEANUP
ButtonChoiceWindow(intf.screen, _("Rescue"),
_("An error occurred trying to mount some or all of your "
"system. Some of it may be mounted under %s.\n\n"
"Press <return> to get a shell.") % iutil.getSysroot() + msg,
[_("OK")])
else:
if flags.automatedInstall and ksdata.reboot.action in [KS_REBOOT, KS_SHUTDOWN]:
log.info("No Linux partitions found")
intf.screen.finish()
print(_("You don't have any Linux partitions. Rebooting.\n"))
sys.exit(0)
else:
if not flags.imageInstall:
msg = _(" The system will reboot automatically when you exit "
"from the shell.")
else:
msg = ""
ButtonChoiceWindow(intf.screen, _("Rescue Mode"),
_("You don't have any Linux partitions. Press "
"return to get a shell.%s") % msg,
[_("OK")], width=50)
msgStr = ""
if rootmounted and not readOnly:
sto.makeMtab()
try:
makeResolvConf(iutil.getSysroot())
except (OSError, IOError) as e:
log.error("error making a resolv.conf: %s", e)
msgStr = _("Your system is mounted under the %s directory.") % (iutil.getSysroot(),)
ButtonChoiceWindow(intf.screen, _("Rescue"), msgStr, [_("OK")])
# we do not need ncurses anymore, shut them down
intf.shutdown()
#create /etc/fstab in ramdisk, so it is easier to work with RO mounted filesystems
makeFStab()
# run %post if we've mounted everything
if rootmounted and not readOnly and flags.automatedInstall:
runPostScripts(ksdata.scripts)
# start shell if reboot wasn't requested
if not flags.automatedInstall or not ksdata.reboot.action in [KS_REBOOT, KS_SHUTDOWN]:
runShell(msg=msgStr)
sys.exit(0)
