block devices, memory, and other hardware on the system
"""
-PROC_MEMINFO_PATH= "/proc/meminfo"
-PROC_PARTITIONS_PATH= "/proc/partitions"
+PROC_MEMINFO_PATH = "/proc/meminfo"
+PROC_PARTITIONS_PATH = "/proc/partitions"
# set when the sfdisk -l <dev> trick has been done to make
# all devices show up
-DEVICES_SCANNED_FLAG= "/tmp/devices_scanned"
+DEVICES_SCANNED_FLAG = "/tmp/devices_scanned"
# a /proc/partitions block is 1024 bytes
# a GB to a HDD manufacturer is 10^9 bytes
BLOCKS_PER_GB = pow(10, 9) / 1024.0;
-MODULE_CLASS_NETWORK= "network"
-MODULE_CLASS_SCSI= "scsi"
+MODULE_CLASS_NETWORK = "network"
+MODULE_CLASS_SCSI = "scsi"
#PCI_* is now defined in the pypci modules
-#PCI_BASE_CLASS_NETWORK=0x02L
-#PCI_BASE_CLASS_STORAGE=0x01L
+#PCI_BASE_CLASS_NETWORK = 0x02L
+#PCI_BASE_CLASS_STORAGE = 0x01L
def get_total_phsyical_mem(vars = {}, log = sys.stderr):
"""
"""
try:
- meminfo_file= file(PROC_MEMINFO_PATH,"r")
+ meminfo_file = file(PROC_MEMINFO_PATH,"r")
except IOError, e:
return
- total_memory= None
+ total_memory = None
for line in meminfo_file:
try:
- (fieldname,value)= string.split(line,":")
+ (fieldname,value) = string.split(line,":")
except ValueError, e:
# this will happen for lines that don't have two values
# (like the first line on 2.4 kernels)
continue
- fieldname= string.strip(fieldname)
- value= string.strip(value)
+ fieldname = string.strip(fieldname)
+ value = string.strip(value)
if fieldname == "MemTotal":
try:
- (total_memory,units)= string.split(value)
+ total_memory, units = string.split(value)
except ValueError, e:
return
return
try:
- total_memory= int(total_memory)
+ total_memory = int(total_memory)
except ValueError, e:
return
# add in valid sd and hd block device names
# also check for vd (virtio devices used with kvm)
for blk_prefix in ('sd','hd','vd'):
- for blk_num in map ( \
- lambda x: chr(x), range(ord('a'),ord('z')+1)):
- devicename="%s%c" % (blk_prefix, blk_num)
- valid_blk_names[devicename]=None
+ for blk_num in string.ascii_lowercase:
+ devicename = "{}{}".format(blk_prefix, blk_num)
+ valid_blk_names[devicename] = None
# add in valid scsi raid block device names
for M in range(0,1+1):
for N in range(0,7+1):
devicename = "cciss/c%dd%d" % (M,N)
- valid_blk_names[devicename]=None
+ valid_blk_names[devicename] = None
for devicename in valid_blk_names.keys():
# devfs under 2.4 (old boot cds) used to list partitions
# in a format such as scsi/host0/bus0/target0/lun0/disc
# and /dev/sda, etc. were just symlinks
try:
- devfsname= os.readlink( "/dev/%s" % devicename )
- valid_blk_names[devfsname]=None
+ devfsname = os.readlink( "/dev/%s" % devicename )
+ valid_blk_names[devfsname] = None
except OSError:
pass
fb = open(DEVICES_SCANNED_FLAG,"w")
fb.close()
- devicelist= {}
+ devicelist = {}
- partitions_file= file(PROC_PARTITIONS_PATH,"r")
- line_count= 0
+ partitions_file = file(PROC_PARTITIONS_PATH,"r")
+ line_count = 0
for line in partitions_file:
- line_count= line_count + 1
+ line_count = line_count + 1
# skip the first two lines always
if line_count < 2:
continue
- parts= string.split(line)
+ parts = string.split(line)
if len(parts) < 4:
continue
- device= parts[3]
+ device = parts[3]
# skip and ignore any partitions
if not valid_blk_names.has_key(device):
continue
try:
- major= int(parts[0])
- minor= int(parts[1])
- blocks= int(parts[2])
+ major = int(parts[0])
+ minor = int(parts[1])
+ blocks = int(parts[2])
except ValueError, err:
continue
- gb_size= blocks/BLOCKS_PER_GB
+ gb_size = blocks/BLOCKS_PER_GB
# check to see if the blk device is readonly
try:
# can we write to it?
- dev_name= "/dev/%s" % device
+ dev_name = "/dev/%s" % device
fb = open(dev_name,"w")
fb.close()
- readonly=False
+ readonly = False
except IOError, e:
# check if EROFS errno
if errno.errorcode.get(e.errno,None) == 'EROFS':
- readonly=True
+ readonly = True
else:
# got some other errno, pretend device is readonly
- readonly=True
+ readonly = True
- devicelist[dev_name]= (major,minor,blocks,gb_size,readonly)
+ devicelist[dev_name] = (major,minor,blocks,gb_size,readonly)
return devicelist
"""
if not vars.has_key("SYSIMG_PATH"):
- vars["SYSIMG_PATH"]="/"
- SYSIMG_PATH=vars["SYSIMG_PATH"]
+ vars["SYSIMG_PATH"] = "/"
+ SYSIMG_PATH = vars["SYSIMG_PATH"]
if not vars.has_key("NODE_MODEL_OPTIONS"):
vars["NODE_MODEL_OPTIONS"] = 0;
# get the kernel version we are assuming
if kernel_version is None:
try:
- kernel_version= os.listdir( "%s/lib/modules/" % SYSIMG_PATH )
+ kernel_version = os.listdir( "%s/lib/modules/" % SYSIMG_PATH )
except OSError, e:
return
if len(kernel_version) > 1:
print( "WARNING: We may be returning modules for the wrong kernel." )
- kernel_version= kernel_version[0]
+ kernel_version = kernel_version[0]
print( "Using kernel version %s" % kernel_version )
pcimap = pypcimap.PCIMap(modules_pcimap_path)
# this is the actual data structure we return
- system_mods= {}
+ system_mods = {}
# these are the lists that will be in system_mods
- network_mods= []
- scsi_mods= []
+ network_mods = []
+ scsi_mods = []
# XXX: this is really similar to what BootCD/conf_files/pl_hwinit does. merge?
pcidevs = get_devices()
- devlist=pcidevs.keys()
+ devlist =pcidevs.keys()
devlist.sort()
for slot in devlist:
dev = pcidevs[slot]
# claims to be a Bridge, even though it is clearly a
# network device
if "forcedeth" in modules:
- base=PCI_BASE_CLASS_NETWORK
+ base = PCI_BASE_CLASS_NETWORK
else:
continue
elif base == PCI_BASE_CLASS_STORAGE:
scsi_mods += modules
- system_mods[MODULE_CLASS_SCSI]= scsi_mods
- system_mods[MODULE_CLASS_NETWORK]= network_mods
+ system_mods[MODULE_CLASS_SCSI] = scsi_mods
+ system_mods[MODULE_CLASS_NETWORK] = network_mods
return system_mods
def getKernelVersion( vars = {} , log = sys.stderr):
# make sure we have the variables we need
try:
- SYSIMG_PATH= vars["SYSIMG_PATH"]
+ SYSIMG_PATH = vars["SYSIMG_PATH"]
if SYSIMG_PATH == "":
raise ValueError, "SYSIMG_PATH"
- 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:
log.write( "WARNING: Couldn't locate smp kernel.\n")
option = ''
try:
- initrd= os.readlink( "%s/boot/initrd-boot%s" % (SYSIMG_PATH,option) )
- kernel_version= initrd.replace("initrd-", "").replace(".img", "")
+ initrd = os.readlink( "%s/boot/initrd-boot%s" % (SYSIMG_PATH,option) )
+ kernel_version = initrd.replace("initrd-", "").replace(".img", "")
except OSError, e:
initrd = None
kernel_version = None
if __name__ == "__main__":
- devices= get_block_device_list()
+ devices = get_block_device_list()
print "block devices detected:"
if not devices:
print "no devices found!"
print ""
- memory= get_total_phsyical_mem()
+ memory = get_total_phsyical_mem()
if not memory:
print "unable to read /proc/meminfo for memory"
else:
if len(sys.argv) > 2:
kernel_version = sys.argv[1]
- modules= get_system_modules()
+ modules = get_system_modules()
if not modules:
print "unable to list system modules"
else:
git://git.onelab.eu / bootmanager.git / blobdiff