1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
import isys
import _balkan
import os
from translate import _
import raid
import iutil
import fstab
from log import log
import os.path
def findExistingRoots (intf, theFstab):
rootparts = []
win = intf.waitWindow (_("Searching"),
_("Searching for Red Hat Linux installations..."))
drives = theFstab.driveList()
mdList = raid.startAllRaid(drives)
for dev in mdList:
if fstab.isValidExt2 (dev):
try:
isys.mount(dev, '/mnt/sysimage', readOnly = 1)
except SystemError, (errno, msg):
intf.messageWindow(_("Error"),
_("Error mounting ext2 filesystem on %s: %s") % (dev, msg))
continue
if os.access ('/mnt/sysimage/etc/fstab', os.R_OK):
rootparts.append ((dev, "ext2"))
isys.umount('/mnt/sysimage')
raid.stopAllRaid(mdList)
for drive in drives:
isys.makeDevInode(drive, '/tmp/' + drive)
try:
table = _balkan.readTable ('/tmp/' + drive)
except SystemError:
pass
else:
for i in range (len (table)):
(type, sector, size) = table[i]
if size and type == _balkan.EXT2:
# for RAID arrays of format c0d0p1
if drive [:3] == "rd/" or drive [:4] == "ida/" or drive [:6] == "cciss/":
dev = drive + 'p' + str (i + 1)
else:
dev = drive + str (i + 1)
try:
isys.mount(dev, '/mnt/sysimage')
except SystemError, (errno, msg):
intf.messageWindow(_("Error"),
_("Error mounting ext2 filesystem on %s: %s") % (dev, msg))
continue
if os.access ('/mnt/sysimage/etc/fstab', os.R_OK):
rootparts.append ((dev, "ext2"))
isys.umount('/mnt/sysimage')
elif size and type == _balkan.DOS:
dev = drive + str (i + 1)
try:
isys.mount(dev, '/mnt/sysimage', fstype = "vfat",
readOnly = 1)
except SystemError, (errno, msg):
log("failed to mount vfat filesystem on %s\n"
% dev)
continue
if os.access('/mnt/sysimage/redhat.img', os.R_OK):
rootparts.append((dev, "vfat"))
isys.umount('/mnt/sysimage')
os.remove ('/tmp/' + drive)
win.pop ()
return rootparts
def mountRootPartition(intf, rootInfo, theFstab, instPath, allowDirty = 0,
raiseErrors = 0):
(root, rootFs) = rootInfo
mdList = raid.startAllRaid(theFstab.driveList())
if rootFs == "vfat":
fstab.mountLoopbackRoot(root)
else:
isys.mount(root, '/mnt/sysimage')
fstab.readFstab(instPath + '/etc/fstab', theFstab)
if rootFs == "vfat":
fstab.unmountLoopbackRoot()
else:
isys.umount('/mnt/sysimage')
raid.stopAllRaid(mdList)
if not allowDirty and theFstab.hasDirtyFilesystems():
import sys
intf.messageWindow(_("Dirty Filesystems"),
_("One or more of the filesystems for your Linux system "
"was not unmounted cleanly. Please boot your Linux "
"installation, let the filesystems be checked, and "
"shut down cleanly to upgrade."))
sys.exit(0)
theFstab.mountFilesystems (instPath, raiseErrors = raiseErrors)
# returns None if no more swap is needed
def swapSuggestion(instPath, fstab):
# mem is in kb -- round it up to the nearest 4Mb
mem = iutil.memInstalled(corrected = 0)
rem = mem % 16384
if (rem):
mem = mem + (16384 - rem)
mem = mem / 1024
# don't do this if we have more then 512 MB
if mem > 510: return None
swap = iutil.swapAmount() / 1024
# if we have twice as much swap as ram, we're safe
if swap >= (mem * 2):
return None
fsList = []
if fstab.rootOnLoop():
space = isys.pathSpaceAvailable("/mnt/loophost")
for info in fstab.mountList():
(mntpoint, partition) = info[0:2]
if mntpoint != '/': continue
info = (mntpoint, partition, space)
fsList.append(info)
else:
for info in fstab.mountList():
(mntpoint, partition, fsystem) = info[0:3]
if fsystem == "ext2":
space = isys.pathSpaceAvailable(instPath + mntpoint)
info = (mntpoint, partition, space)
fsList.append(info)
suggestion = mem * 2 - swap
suggSize = 0
suggMnt = None
for (mnt, part, size) in fsList:
if (size > suggSize) and (size > (suggestion + 100)):
suggMnt = mnt
return (fsList, suggestion, suggMnt)
def swapfileExists(swapname):
try:
rc = os.lstat(swapname)
return 1
except:
return 0
def createSwapFile(instPath, theFstab, mntPoint, size, progressWindow):
fstabPath = instPath + "/etc/fstab"
prefix = ""
if theFstab.rootOnLoop():
instPath = "/mnt/loophost"
prefix = "/initrd/loopfs"
if mntPoint != "/":
file = mntPoint + "/SWAP"
else:
file = "/SWAP"
existingSwaps = theFstab.swapList(files = 1)
swapFileDict = {}
for n in existingSwaps:
dev = n[0]
swapFileDict[dev] = 1
count = 0
while (swapfileExists(instPath + file) or
swapFileDict.has_key(file)):
count = count + 1
tmpFile = "/SWAP-%d" % (count)
if mntPoint != "/":
file = mntPoint + tmpFile
else:
file = tmpFile
theFstab.addMount(file, size, "swap")
theFstab.turnOnSwap(instPath, progressWindow)
f = open(fstabPath, "a")
f.write(fstab.fstabFormatString % (prefix + file, "swap", "swap", "defaults",
0, 0))
f.close()
|
