[linux-lvm] vgscan can not find active volume group when i add a cdrom

Christophe Nowicki cscm at meuh.dyndns.org
Sat Jul 17 20:33:52 UTC 2004


On Thu, Jul 15, 2004 at 02:27:01PM -0700, bowmailtmp-lvm at yahoo.com wrote:
Hi,

Thanks for the answer dave, but is still does not work.
> Have you tried using the "filter" directive in the
> /etc/lvm/lvm.cnf  to force vgscan to ignore the
> /dev/hdd device?  
I don't have a /etc/lvm directory on my system.
I've only a /etc/lvmconf directory with binary configuration 
files.
> In my config it ignores /dev/cdrom
> which does not actually point to my real cdrom on
> /dev/hdc and it still has no issues, but it may be
> worth a shot anyway.
> 
> Also, it might be worth strace-ing the vgscan to see
> what happens when it tries to fstat the /dev/hdd
> device:
> strace vgscan >& output.log
vgscan stat and open /dev/hdd without a problem :

$ grep hdd strace_output.log
stat64("/dev/hdd", {st_mode=S_IFBLK|0660, st_rdev=makedev(22, 64), ...}) = 0
open("/dev/hdd", O_RDONLY)              = 5
stat64("/dev/hdd", {st_mode=S_IFBLK|0660, st_rdev=makedev(22, 64), ...}) = 0
open("/dev/hdd", O_RDONLY)              = 4

the full strace log is attached to this mail.

thanks 

-- 
Nowicki Christophe                                  
EPITECH Promo 2006                                 
http://etudiant.epita.fr/~nowick_c/                 
-------------- next part --------------
execve("/sbin/vgscan", ["/sbin/vgscan"], [/* 14 vars */]) = 0
uname({sys="Linux", node="rescue", ...}) = 0
brk(0)                                  = 0x8049e6c
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40017000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=11349, ...}) = 0
old_mmap(NULL, 11349, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40018000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200^\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1243856, ...}) = 0
old_mmap(NULL, 1254020, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4001b000
old_mmap(0x40143000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x127000) = 0x40143000
old_mmap(0x4014b000, 8836, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4014b000
close(3)                                = 0
munmap(0x40018000, 11349)               = 0
brk(0)                                  = 0x8049e6c
brk(0x806ae6c)                          = 0x806ae6c
brk(0)                                  = 0x806ae6c
brk(0x806b000)                          = 0x806b000
open("/proc/misc", O_RDONLY)            = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40018000
read(3, " 63 device-mapper\n134 apm_bios\n1"..., 4096) = 49
close(3)                                = 0
munmap(0x40018000, 4096)                = 0
brk(0)                                  = 0x806b000
brk(0)                                  = 0x806b000
brk(0x806a000)                          = 0x806a000
brk(0)                                  = 0x806a000
open("/dev/null", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = -1 ENOTDIR (Not a directory)
open("/proc/lvm/VGs", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3
fstat64(3, {st_mode=S_IFDIR|0555, st_size=0, ...}) = 0
fcntl64(3, F_SETFD, FD_CLOEXEC)         = 0
getdents64(3, /* 2 entries */, 4096)    = 48
getdents64(3, /* 0 entries */, 4096)    = 0
close(3)                                = 0
stat64("/lib/lvm-200/vgscan", 0xbffffb3c) = -1 ENOENT (No such file or directory)
open("/dev/lvm", O_RDONLY)              = 3
ioctl(3, LVM_GET_IOP_VERSION, 0xbffffbde) = 0
close(3)                                = 0
stat64("/lib/lvm-10/vgscan", {st_mode=S_IFREG|0755, st_size=12828, ...}) = 0
execve("/lib/lvm-10/vgscan", ["/sbin/vgscan"], [/* 14 vars */]) = 0
uname({sys="Linux", node="rescue", ...}) = 0
brk(0)                                  = 0x804bdc4
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40017000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=11349, ...}) = 0
old_mmap(NULL, 11349, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40018000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/liblvm-10.so.1", O_RDONLY)   = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0PQ\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=140328, ...}) = 0
old_mmap(NULL, 156308, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4001b000
old_mmap(0x4003d000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x21000) = 0x4003d000
old_mmap(0x4003e000, 12948, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4003e000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200^\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1243856, ...}) = 0
old_mmap(NULL, 1254020, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40042000
old_mmap(0x4016a000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x127000) = 0x4016a000
old_mmap(0x40172000, 8836, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40172000
close(3)                                = 0
munmap(0x40018000, 11349)               = 0
stat64("/dev/lvm", {st_mode=S_IFCHR|0640, st_rdev=makedev(109, 0), ...}) = 0
open("/dev/lvm", O_RDONLY)              = 3
ioctl(3, LVM_GET_IOP_VERSION, 0xbffffc1a) = 0
close(3)                                = 0
stat64("/dev/lvm", {st_mode=S_IFCHR|0640, st_rdev=makedev(109, 0), ...}) = 0
open("/dev/lvm", O_RDONLY)              = 3
ioctl(3, 0xff00, 0x4003dc7c)            = 0
rt_sigprocmask(SIG_SETMASK, ~[], [], 8) = 0
unlink("/etc/lvmtab")                   = 0
lstat64("/etc/lvmtab.d", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/dev/null", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = -1 ENOTDIR (Not a directory)
open("/etc/lvmtab.d", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 4
fstat64(4, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
brk(0)                                  = 0x804bdc4
brk(0x806cdc4)                          = 0x806cdc4
brk(0)                                  = 0x806cdc4
brk(0x806d000)                          = 0x806d000
getdents64(4, /* 2 entries */, 4096)    = 48
getdents64(4, /* 0 entries */, 4096)    = 0
brk(0)                                  = 0x806d000
brk(0)                                  = 0x806d000
brk(0x806c000)                          = 0x806c000
brk(0)                                  = 0x806c000
close(4)                                = 0
rmdir("/etc/lvmtab.d")                  = 0
open("/etc/lvmtab", O_WRONLY|O_CREAT|O_TRUNC, 0640) = 4
write(4, "\0", 1)                       = 1
fchmod(4, 0640)                         = 0
fsync(4)                                = 0
close(4)                                = 0
mkdir("/etc/lvmtab.d", 0755)            = 0
fstat64(1, {st_mode=S_IFREG|0644, st_size=6209, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40018000
open("/proc/partitions", O_RDONLY)      = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "major minor  #blocks  name     r"..., 4096) = 840
stat64("/dev/hdd", {st_mode=S_IFBLK|0660, st_rdev=makedev(22, 64), ...}) = 0
open("/proc/devices", O_RDONLY)         = 5
fstat64(5, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
read(5, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(5)                                = 0
munmap(0x4001a000, 4096)                = 0
open("/dev/hdd", O_RDONLY)              = 5
close(5)                                = 0
stat64("/dev/ide/host0/bus0/target0/lun0/disc", 0xbffff75c) = -1 ENOENT (No such file or directory)
stat64("/dev/ide/host0/bus0/target0/lun0/part1", 0xbffff75c) = -1 ENOENT (No such file or directory)
stat64("/dev/ide/host0/bus0/target0/lun0/part2", 0xbffff75c) = -1 ENOENT (No such file or directory)
stat64("/dev/ide/host0/bus0/target0/lun0/part5", 0xbffff75c) = -1 ENOENT (No such file or directory)
stat64("/dev/ide/host0/bus0/target0/lun0/part6", 0xbffff75c) = -1 ENOENT (No such file or directory)
stat64("/dev/ide/host0/bus0/target1/lun0/disc", 0xbffff75c) = -1 ENOENT (No such file or directory)
stat64("/dev/ide/host0/bus0/target1/lun0/part1", 0xbffff75c) = -1 ENOENT (No such file or directory)
read(4, "", 4096)                       = 0
stat64("/dev/ide/host0/bus0/target1/lun0/part1", 0xbffff75c) = -1 ENOENT (No such file or directory)
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOENT (No such file or directory)
open("/dev/", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 4
fstat64(4, {st_mode=S_IFDIR|0755, st_size=24576, ...}) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
getdents64(4, /* 139 entries */, 4096)  = 4088
getdents64(4, /* 150 entries */, 4096)  = 4080
getdents64(4, /* 132 entries */, 4096)  = 4072
getdents64(4, /* 128 entries */, 4096)  = 4096
getdents64(4, /* 1 entries */, 4096)    = 24
getdents64(4, /* 128 entries */, 4096)  = 4096
getdents64(4, /* 128 entries */, 4096)  = 4096
getdents64(4, /* 133 entries */, 4096)  = 4088
getdents64(4, /* 131 entries */, 4096)  = 4072
getdents64(4, /* 140 entries */, 4096)  = 4072
getdents64(4, /* 141 entries */, 4096)  = 3928
getdents64(4, /* 50 entries */, 4096)   = 1424
getdents64(4, /* 0 entries */, 4096)    = 0
open("/etc/mtab", O_RDONLY)             = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=141, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(5, "/dev/hda1 / unknown rw,errors=re"..., 4096) = 141
close(5)                                = 0
munmap(0x40019000, 4096)                = 0
open("/proc/meminfo", O_RDONLY)         = 5
fstat64(5, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(5, "        total:    used:    free:"..., 4096) = 524
close(5)                                = 0
munmap(0x40019000, 4096)                = 0
close(4)                                = 0
stat64("/dev/loop0", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop0", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop1", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 1), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop1", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop2", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 2), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop2", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop3", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 3), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop3", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop4", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 4), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop4", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop5", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 5), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop5", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop6", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 6), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop6", O_RDONLY)            = 4
close(4)                                = 0
stat64("/dev/loop7", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 7), ...}) = 0
open("/proc/devices", O_RDONLY)         = 4
fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(4, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(4)                                = 0
munmap(0x40019000, 4096)                = 0
open("/dev/loop7", O_RDONLY)            = 4
close(4)                                = 0
open("/dev/nb", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOENT (No such file or directory)
open("/dev/", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 4
fstat64(4, {st_mode=S_IFDIR|0755, st_size=24576, ...}) = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
getdents64(4, /* 139 entries */, 4096)  = 4088
getdents64(4, /* 150 entries */, 4096)  = 4080
getdents64(4, /* 132 entries */, 4096)  = 4072
getdents64(4, /* 128 entries */, 4096)  = 4096
getdents64(4, /* 1 entries */, 4096)    = 24
getdents64(4, /* 128 entries */, 4096)  = 4096
getdents64(4, /* 128 entries */, 4096)  = 4096
getdents64(4, /* 133 entries */, 4096)  = 4088
getdents64(4, /* 131 entries */, 4096)  = 4072
getdents64(4, /* 140 entries */, 4096)  = 4072
getdents64(4, /* 141 entries */, 4096)  = 3928
getdents64(4, /* 50 entries */, 4096)   = 1424
getdents64(4, /* 0 entries */, 4096)    = 0
close(4)                                = 0
stat64("/dev/hdd", {st_mode=S_IFBLK|0660, st_rdev=makedev(22, 64), ...}) = 0
open("/dev/hdd", O_RDONLY)              = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(22, 64), ...}) = 0
read(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 468) = 468
open("/proc/devices", O_RDONLY)         = 5
fstat64(5, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(5, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(5)                                = 0
munmap(0x40019000, 4096)                = 0
open("/proc/devices", O_RDONLY)         = 5
fstat64(5, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40019000
read(5, "Character devices:\n  1 mem\n  2 p"..., 4096) = 202
close(5)                                = 0
munmap(0x40019000, 4096)                = 0
close(4)                                = 0
stat64("/dev/loop0", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0), ...}) = 0
open("/dev/loop0", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop1", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 1), ...}) = 0
open("/dev/loop1", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 1), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop2", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 2), ...}) = 0
open("/dev/loop2", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 2), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop3", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 3), ...}) = 0
open("/dev/loop3", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 3), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop4", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 4), ...}) = 0
open("/dev/loop4", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 4), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop5", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 5), ...}) = 0
open("/dev/loop5", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 5), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop6", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 6), ...}) = 0
open("/dev/loop6", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 6), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
stat64("/dev/loop7", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 7), ...}) = 0
open("/dev/loop7", O_RDONLY)            = 4
fstat64(4, {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 7), ...}) = 0
read(4, "", 468)                        = 0
close(4)                                = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
close(3)                                = 0
write(1, "vgscan -- reading all physical v"..., 211vgscan -- reading all physical volumes (this may take a while...)
vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
vgscan -- WARNING: This program does not do a VGDA backup of your volume group

) = 211
munmap(0x40018000, 4096)                = 0
exit_group(0)                           = ?
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