+#!/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
-from systeminfo import systeminfo
-import compatibility
+import systeminfo
import ModelOptions
-def Run( vars, log ):
+def Run(vars, log):
"""
See if a node installation is valid. More checks should certainly be
done in the future, but for now, make sure that the sym links kernel-boot
- and initrd-boot exist in /boot
+ exist in /boot
Expect the following variables to be set:
SYSIMG_PATH the path where the system image will be mounted
(always starts with TEMP_PATH)
- BOOT_CD_VERSION A tuple of the current bootcd version
ROOT_MOUNTED the node root file system is mounted
NODE_ID The db node_id for this machine
PLCONF_DIR The directory to store the configuration file in
ROOT_MOUNTED the node root file system is mounted
"""
- log.write( "\n\nStep: Validating node installation.\n" )
+ log.write("\n\nStep: Validating node installation.\n")
# make sure we have the variables we need
try:
- BOOT_CD_VERSION= vars["BOOT_CD_VERSION"]
- if BOOT_CD_VERSION == "":
- raise ValueError, "BOOT_CD_VERSION"
-
- SYSIMG_PATH= vars["SYSIMG_PATH"]
+ SYSIMG_PATH = vars["SYSIMG_PATH"]
if SYSIMG_PATH == "":
- raise ValueError, "SYSIMG_PATH"
+ raise ValueError("SYSIMG_PATH")
- NODE_ID= vars["NODE_ID"]
+ NODE_ID = vars["NODE_ID"]
if NODE_ID == "":
- raise ValueError, "NODE_ID"
+ raise ValueError("NODE_ID")
- PLCONF_DIR= vars["PLCONF_DIR"]
+ PLCONF_DIR = vars["PLCONF_DIR"]
if PLCONF_DIR == "":
- raise ValueError, "PLCONF_DIR"
+ raise ValueError("PLCONF_DIR")
- NODE_MODEL_OPTIONS= vars["NODE_MODEL_OPTIONS"]
+ NODE_MODEL_OPTIONS = vars["NODE_MODEL_OPTIONS"]
- 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
+ PARTITIONS = vars["PARTITIONS"]
+ if PARTITIONS == None:
+ raise ValueError("PARTITIONS")
+ except KeyError as var:
+ raise BootManagerException("Missing variable in vars: {}\n".format(var))
+ except ValueError as var:
+ raise BootManagerException("Variable in vars, shouldn't be: {}\n".format(var))
- ROOT_MOUNTED= 0
- if 'ROOT_MOUNTED' in vars.keys():
- ROOT_MOUNTED= vars['ROOT_MOUNTED']
+
+ ROOT_MOUNTED = 0
+ if vars.has_key('ROOT_MOUNTED'):
+ ROOT_MOUNTED = vars['ROOT_MOUNTED']
# mount the root system image if we haven't already.
# capture BootManagerExceptions during the vgscan/change and mount
# calls, so we can return 0 instead
if ROOT_MOUNTED == 0:
- # old cds need extra utilities to run lvm
- if BOOT_CD_VERSION[0] == 2:
- compatibility.setup_lvm_2x_cd( vars, log )
# simply creating an instance of this class and listing the system
# block devices will make them show up so vgscan can find the planetlab
# volume group
- systeminfo().get_block_device_list()
+ systeminfo.get_block_device_list(vars, log)
try:
- utils.sysexec( "vgscan", log )
- utils.sysexec( "vgchange -ay planetlab", log )
- except BootManagerException, e:
- log.write( "BootManagerException during vgscan/vgchange: %s\n" %
- str(e) )
+ utils.sysexec("vgscan", log)
+ utils.sysexec("vgchange -ay planetlab", log)
+ except BootManagerException as e:
+ log.write("BootManagerException during vgscan/vgchange: {}\n"\
+ .format(str(e)))
return 0
- utils.makedirs( SYSIMG_PATH )
+ utils.makedirs(SYSIMG_PATH)
+
+ # xxx - TODO - need to fsck the btrfs partition
+ if vars['virt'] == 'vs':
+ filesystems_tocheck = ['root', 'vservers']
+ else:
+ filesystems_tocheck = ['root']
+
+ for filesystem in filesystems_tocheck:
+ try:
+ # first run fsck to prevent fs corruption from hanging mount...
+ log.write("fsck {} file system\n".format(filesystem))
+ utils.sysexec("e2fsck -v -p {}".format(PARTITIONS[filesystem]), log, fsck=True)
+ except BootManagerException as e:
+ log.write("BootManagerException during fsck of {} ({}) filesystem : {}\n"\
+ .format(filesystem, PARTITIONS[filesystem], str(e)))
+ try:
+ log.write("Trying to recover filesystem errors on {}\n".format(filesystem))
+ utils.sysexec("e2fsck -v -y {}".format(PARTITIONS[filesystem]), log, fsck=True)
+ except BootManagerException as e:
+ log.write("BootManagerException while trying to recover"
+ "filesystem errors on {} ({}) filesystem : {}\n"
+ .format(filesystem, PARTITIONS[filesystem], str(e)))
+ return -1
+ else:
+ # disable time/count based filesystems checks
+ utils.sysexec_noerr("tune2fs -c -1 -i 0 {}".format(PARTITIONS[filesystem]), log)
try:
- utils.sysexec( "mount /dev/planetlab/root %s" % SYSIMG_PATH, log )
- utils.sysexec( "mount /dev/planetlab/vservers %s/vservers" %
- SYSIMG_PATH, log )
- utils.sysexec( "mount -t proc none %s/proc" % SYSIMG_PATH, log )
- except BootManagerException, e:
- log.write( "BootManagerException during vgscan/vgchange: %s\n" %
- str(e) )
- return 0
-
- ROOT_MOUNTED= 1
- vars['ROOT_MOUNTED']= 1
+ # then attempt to mount them
+ log.write("mounting root file system\n")
+ utils.sysexec("mount -t ext3 {} {}".format(PARTITIONS["root"], SYSIMG_PATH),log)
+ except BootManagerException as e:
+ log.write("BootManagerException during mount of /root: {}\n".format(str(e)))
+ return -2
+
+ try:
+ PROC_PATH = "{}/proc".format(SYSIMG_PATH)
+ utils.makedirs(PROC_PATH)
+ log.write("mounting /proc\n")
+ utils.sysexec("mount -t proc none {}".format(PROC_PATH), log)
+ except BootManagerException as e:
+ log.write("BootManagerException during mount of /proc: {}\n".format(str(e)))
+ return -2
+
+
+ one_partition = vars['ONE_PARTITION']=='1'
+
+ if (not one_partition):
+ try:
+ VSERVERS_PATH = "{}/vservers".format(SYSIMG_PATH)
+ utils.makedirs(VSERVERS_PATH)
+ log.write("mounting vservers partition in root file system\n")
+ if vars['virt'] == 'vs':
+ utils.sysexec("mount -t ext3 {} {}".format(PARTITIONS["vservers"], VSERVERS_PATH), log)
+ else:
+ utils.sysexec("mount -t btrfs {} {}".format(PARTITIONS["vservers"], VSERVERS_PATH), log)
+ except BootManagerException as e:
+ log.write("BootManagerException while mounting /vservers: {}\n".format(str(e)))
+ return -2
+
+ ROOT_MOUNTED = 1
+ vars['ROOT_MOUNTED'] = 1
-
- # get the kernel version
+ # check if the base kernel is installed
+ # these 2 links are created by our kernel's post-install scriplet
+ log.write("Checking for a custom kernel\n")
+ try:
+ if vars['virt'] == 'vs':
+ os.stat("{}/boot/kernel-boot".format(SYSIMG_PATH))
+ else:
+ try:
+ kversion = os.popen("chroot {} rpm -qa kernel | tail -1 | cut -c 8-"\
+ .format(SYSIMG_PATH)).read().rstrip()
+ os.stat("{}/boot/vmlinuz-{}".format(SYSIMG_PATH, kversion))
+ major_version = int(kversion[0]) # Check if the string looks like a kernel version
+ except:
+ kversion = os.popen("ls -lrt {}/lib/modules | tail -1 | awk '{print $9;}'"\
+ .format(SYSIMG_PATH)).read().rstrip()
+ except OSError as e:
+ log.write("Couldn't locate base kernel (you might be using the stock kernel).\n")
+ return -3
+
+ # check if the model specified kernel is installed
option = ''
if NODE_MODEL_OPTIONS & ModelOptions.SMP:
option = 'smp'
-
- files = ("kernel-boot%s" % option, "initrd-boot%s" % option)
- valid= 1
- for filepath in files:
- if not os.access("%s/boot/%s"%(SYSIMG_PATH,filepath),os.F_OK|os.R_OK):
- log.write( "Node not properly installed:\n")
- log.write( "\tmissing file /boot/%s\n" % filepath )
- valid= 0
-
- if not valid:
- return 0
-
+ try:
+ os.stat("{}/boot/kernel-boot{}".format(SYSIMG_PATH, option))
+ except OSError as e:
+ # smp kernel is not there; remove option from modeloptions
+ # such that the rest of the code base thinks we are just
+ # using the base kernel.
+ NODE_MODEL_OPTIONS = NODE_MODEL_OPTIONS & ~ModelOptions.SMP
+ vars["NODE_MODEL_OPTIONS"] = NODE_MODEL_OPTIONS
+ log.write("WARNING: Couldn't locate smp kernel.\n")
+
# write out the node id to /etc/planetlab/node_id. if this fails, return
# 0, indicating the node isn't a valid install.
try:
- node_id_file_path= "%s/%s/node_id" % (SYSIMG_PATH,PLCONF_DIR)
- node_id_file= file( node_id_file_path, "w" )
- node_id_file.write( str(NODE_ID) )
+ node_id_file_path = "{}/{}/node_id".format(SYSIMG_PATH, PLCONF_DIR)
+ node_id_file = file(node_id_file_path, "w")
+ node_id_file.write(str(NODE_ID))
node_id_file.close()
- node_id_file= None
- log.write( "Updated /etc/planetlab/node_id" )
- except IOError, e:
- log.write( "Unable to write out /etc/planetlab/node_id" )
+ node_id_file = None
+ log.write("Updated /etc/planetlab/node_id\n")
+ except IOError as e:
+ log.write("Unable to write out /etc/planetlab/node_id\n")
return 0
- log.write( "Everything appears to be ok\n" )
+ log.write("Node installation appears to be ok\n")
return 1