xfsrestore over ssh?

xfsrestore over ssh?

[Richard Hartmann]

Hi all,

I am unable to find the correct command to restore a xfs dump
over ssh. I don't care on which of the two boxes I need to run
the command, if anyone could tell me either way, that would
be hugely appreciated!


Thanks in advance,
Richard

Re: xfsrestore over ssh?

[Bill Kendall]

On 07/21/2008 03:17 PM, Richard Hartmann wrote:
> Hi all,
> 
> I am unable to find the correct command to restore a xfs dump
> over ssh. I don't care on which of the two boxes I need to run
> the command, if anyone could tell me either way, that would
> be hugely appreciated!
> 
> 
> Thanks in advance,
> Richard
> 

Something like this should work. Run it from the host that
has the dump file and ssh to the box that needs to have restore.

% cat dumpfile | ssh root@host xfsrestore - /restore/here

Bill

Re: xfsrestore over ssh?

[Richard Hartmann]

On Mon, Jul 21, 2008 at 22:33, Bill Kendall <wkendall@sgi.com> wrote:


> % cat dumpfile | ssh root@host xfsrestore - /restore/here

I did try

  cat root.xfs | ssh root@192.168.1.213 xfsrestore - /mnt/sda3

which resulted in

The authenticity of host '192.168.1.213 (192.168.1.213)' can't be established.
RSA key fingerprint is 3c:a9:a3:84:0f:8e:e2:84:c9:c6:85:af:5f:8d:52:5f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.213' (RSA) to the list of known hosts.
Password:
xfsrestore: using file dump (drive_simple) strategy
xfsrestore: version 2.2.45 (dump format 3.0) - Running single-threaded
xfsrestore: unable to construct a file system handle for /mnt/sda3:
Das Argument ist ung�ltig
xfsrestore: Restore Status: ERROR

'The argument is invalid' -- needless to say, this is a valid xfs partition of
appropriate size..


Richard

Re: xfsrestore over ssh?

[Timothy Shimmin]

Richard Hartmann wrote:
> On Mon, Jul 21, 2008 at 22:33, Bill Kendall <wkendall@sgi.com> wrote:
> 
> 
>> % cat dumpfile | ssh root@host xfsrestore - /restore/here
> 
> I did try
> 
>   cat root.xfs | ssh root@192.168.1.213 xfsrestore - /mnt/sda3
> 
> which resulted in
> 
> The authenticity of host '192.168.1.213 (192.168.1.213)' can't be established.
> RSA key fingerprint is 3c:a9:a3:84:0f:8e:e2:84:c9:c6:85:af:5f:8d:52:5f.
> Are you sure you want to continue connecting (yes/no)? yes
> Warning: Permanently added '192.168.1.213' (RSA) to the list of known hosts.
> Password:
> xfsrestore: using file dump (drive_simple) strategy
> xfsrestore: version 2.2.45 (dump format 3.0) - Running single-threaded
> xfsrestore: unable to construct a file system handle for /mnt/sda3:
> Das Argument ist ung�ltig
> xfsrestore: Restore Status: ERROR
> 
> 'The argument is invalid' -- needless to say, this is a valid xfs partition of
> appropriate size..
> 
> 
The final argument to restore should be a destination directory not a device
(as Donald sitting nearby mentioned to me :).

xfsrestore just uses standard posix calls for the most part to
restore the files (seeks, writes, etc...) to a mounted filesystem -
and in many circumstances can restore on a non-xfs mounted filesystem.
It is _NOT_ a low level file system restorer to an unmounted filesystem
like some other restorers.

--Tim

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 05:59, Timothy Shimmin <tes@sgi.com> wrote:


> xfsrestore just uses standard posix calls for the most part to
> restore the files (seeks, writes, etc...) to a mounted filesystem -
> and in many circumstances can restore on a non-xfs mounted filesystem.
> It is _NOT_ a low level file system restorer to an unmounted filesystem
> like some other restorers.

True, this is why I told it to use /mnt/sda3, not a raw device :)


Richard

Re: xfsrestore over ssh?

[Donald Douwsma]

Richard Hartmann wrote:
> On Tue, Jul 22, 2008 at 05:59, Timothy Shimmin <tes@sgi.com> wrote:
> 
> 
>> xfsrestore just uses standard posix calls for the most part to
>> restore the files (seeks, writes, etc...) to a mounted filesystem -
>> and in many circumstances can restore on a non-xfs mounted filesystem.
>> It is _NOT_ a low level file system restorer to an unmounted filesystem
>> like some other restorers.
> 
> True, this is why I told it to use /mnt/sda3, not a raw device :)

:), looks like we both misread that.

Should be working then. If you hexdump the start of the dump does it look
reasonable? It should be something like:

molten:/home/donaldd # hexdump -C dump | head
00000000  78 46 53 64 75 6d 70 30  00 00 00 02 02 05 e8 49  |xFSdump0.......I|
00000010  48 85 7c cc 00 00 00 00  00 00 00 00 0e 86 21 36  |H.|...........!6|
00000020  86 06 e5 1d 17 32 49 a0  ad ea 5d 1d a2 7c d9 a3  |.....2I...]..|..|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000100  6d 6f 6c 74 65 6e 00 00  00 00 00 00 00 00 00 00  |molten..........|
00000110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000200  73 6f 6d 65 6c 61 62 65  6c 00 00 00 00 00 00 00  |somelabel.......|
00000210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 08:20, Donald Douwsma <donaldd@sgi.com> wrote:

> Should be working then. If you hexdump the start of the dump does it look
> reasonable? It should be something like:

00000000  78 46 53 64 75 6d 70 30  00 00 00 02 7c 88 36 7e  |xFSdump0....|.6~|
00000010  48 80 68 62 00 00 00 00  00 00 00 00 00 7f 01 01  |H.hb............|
00000020  4d 5b 06 14 c5 68 40 99  9d 23 9d ef 10 23 5d 4a  |M[...h@..#...#]J|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000100  69 6c 6f 6e 61 2d 6c 61  70 74 6f 70 00 00 00 00  |ilona-laptop....|
00000110  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000400  00 00 00 01 00 00 00 00  00 00 00 01 00 00 00 00  |................|
00000410  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

An interactive xfsrestore on the local computer does work like a charm, as
well.


Richard

Re: xfsrestore over ssh?

[Nathan Scott]

On Tue, 2008-07-22 at 13:59 +1000, Timothy Shimmin wrote:
> Richard Hartmann wrote:
> > On Mon, Jul 21, 2008 at 22:33, Bill Kendall <wkendall@sgi.com wrote:
> xfsrestore: unable to construct a file system handle for /mnt/sda3:
> > Das Argument ist ung�ltig
> > xfsrestore: Restore Status: ERROR

"unable to construct a file system handle" - theres only one place
in the restore code that can come from - the path_to_fshandle call.
Is there a 32 bit userspace and 64 bit kernel on the machine where
xfsrestore is running?

Its not clear to me what that code in xfsrestore is trying to do,
you may be able to just comment it out...?!?

cheers.

--
Nathan

Re: xfsrestore over ssh?

[Timothy Shimmin]

Nathan Scott wrote:
> On Tue, 2008-07-22 at 13:59 +1000, Timothy Shimmin wrote:
>> Richard Hartmann wrote:
>>> On Mon, Jul 21, 2008 at 22:33, Bill Kendall <wkendall@sgi.com wrote:
>> xfsrestore: unable to construct a file system handle for /mnt/sda3:
>>> Das Argument ist ung�ltig
>>> xfsrestore: Restore Status: ERROR
> 
> "unable to construct a file system handle" - theres only one place
> in the restore code that can come from - the path_to_fshandle call.
> Is there a 32 bit userspace and 64 bit kernel on the machine where
> xfsrestore is running?
> 
> Its not clear to me what that code in xfsrestore is trying to do,
> you may be able to just comment it out...?!?
> 
> cheers.
> 
> --
> Nathan
> 

Oh yeah from this code:
>         /* effectively initialize libhandle on this filesystem by
>          * allocating a file system handle. this needs to be done
>          * before any open_by_handle() calls (and possibly other
>          * libhandle calls).
>          */
>         if ( persp->a.dstdirisxfspr ) {
>                 void    *fshanp;
>                 size_t  fshlen=0;
> 
>                 if(path_to_fshandle(persp->a.dstdir, &fshanp, &fshlen)) {
>                         mlog( MLOG_NORMAL,
>                                 _("unable to construct a file "
>                                   "system handle for %s: %s\n"),
>                                 persp->a.dstdir,
>                                 strerror( errno ));

IIRC, I think it wants an fd to use for the filesystem in
handle ioctl calls. It caches it against the fsid in the handle.

I don't think commenting out will work as it will stop the handle
calls from working.

If you could strace it then we could see what call was failing
in path_to_fshandle().

path_to_fshandle...
>         fd = open(path, O_RDONLY);
>         if (fd < 0)
>                 return -1;
>         
>         obj.path = path;
>         result = obj_to_handle(path, fd, XFS_IOC_PATH_TO_FSHANDLE,
>                                 obj, fshanp, fshlen);
>         if (result < 0) {
>                 close(fd);
>                 return result;

So I guess either open failed or obj_to_handle failed.

obj_to_handle...
>                 hreq.path    = obj.path;
>         }
> 
>         hreq.oflags   = O_LARGEFILE;
>         hreq.ihandle  = NULL;
>         hreq.ihandlen = 0;
>         hreq.ohandle  = hbuf;
>         hreq.ohandlen = &handlen;
> 
>         ret = xfsctl(fspath, fsfd, opcode, &hreq);
>         if (ret)
>                 return ret;

--Tim

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 09:04, Timothy Shimmin <tes@sgi.com> wrote:

> If you could strace it then we could see what call was failing
> in path_to_fshandle().

First with -ttt to get rid of a tty allocation error, then without:

% cat root.xfs | ssh -ttt root@192.168.1.213 strace xfsrestore - /mnt/sda3
Password:
tcgetattr: Invalid argument
execve("/sbin/xfsrestore", ["xfsrestore", "-", "/mnt/sda3"], [/* 15
vars */]) = 0
brk(0)                                  = 0x808c000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f84000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=187135, ...}) = 0
mmap2(NULL, 187135, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f56000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libuuid.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\0
\20\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=12656, ...}) = 0
mmap2(NULL, 15440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7f52000
mmap2(0xb7f55000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7f55000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libhandle.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\0@\n\0\000"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=7144, ...}) = 0
mmap2(NULL, 10164, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7f4f000
mmap2(0xb7f51000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7f51000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libattr.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\0p\f\0\000"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=12820, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f4e000
mmap2(NULL, 15680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7f4a000
mmap2(0xb7f4d000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7f4d000
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\260e\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1356012, ...}) = 0
mmap2(NULL, 1361520, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0) = 0xb7dfd000
mmap2(0xb7f44000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x147) = 0xb7f44000
mmap2(0xb7f47000, 9840, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f47000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7dfc000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7dfc6f0,
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7f44000, 4096, PROT_READ)   = 0
munmap(0xb7f56000, 187135)              = 0
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=16969248, ...}) = 0
mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7bfc000
mmap2(NULL, 4096, PROT_READ, MAP_PRIVATE, 3, 0x321) = 0xb7f83000
brk(0)                                  = 0x808c000
brk(0x80ad000)                          = 0x80ad000
close(3)                                = 0
getpid()                                = 5078
getrlimit(RLIMIT_AS, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_STACK, {rlim_cur=32768*1024, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=32768*1024, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_DATA, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getcwd("/UNIONFS/root", 4096)           = 14
stat64("/var/lib/xfsdump", 0xbf9e4d70)  = -1 ENOENT (No such file or directory)
stat64("/var/xfsdump", 0xbf9e4d10)      = -1 ENOENT (No such file or directory)
open("/dev/tty", O_RDWR|O_LARGEFILE)    = 3
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 4), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f82000
write(1, "xfsrestore: using file dump (dri"..., 52xfsrestore: using
file dump (drive_simple) strategy
) = 52
mmap2(NULL, 270336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0xb7bba000
ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
write(1, "xfsrestore: version 2.2.45 (dump"..., 44xfsrestore: version
2.2.45 (dump format 3.0)) = 44
write(1, " - Running single-threaded\n", 27 - Running single-threaded
) = 27
time(NULL)                              = 1216723667
stat64("/mnt/sda3", {st_mode=S_IFDIR|0755, st_size=38, ...}) = 0
mkdir("/mnt/sda3/xfsrestorehousekeepingdir", 0700) = -1 EEXIST (File exists)
open("/mnt/sda3/xfsrestorehousekeepingdir/state",
O_RDWR|O_CREAT|O_LARGEFILE, 0600) = 4
fstat64(4, {st_mode=S_IFREG|0600, st_size=20480, ...}) = 0
mmap2(NULL, 20480, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0) = 0xb7f7d000
geteuid32()                             = 0
munmap(0xb7f7d000, 20480)               = 0
ftruncate64(4, 20480)                   = 0
fstat64(4, {st_mode=S_IFREG|0600, st_size=20480, ...}) = 0
mmap2(NULL, 20480, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0) = 0xb7f7d000
statfs64("/mnt/sda3", 84, {f_type=0x58465342, f_bsize=4096,
f_blocks=2201496, f_bfree=2200427, f_bavail=2200427, f_files=8816192,
f_ffree=8816187, f_fsid={2051, 0}, f_namelen=255, f_frsize=4096}) = 0
open("/mnt/sda3", O_RDONLY|O_LARGEFILE) = 5
ioctl(5, 0xc01c5868, 0xbf9e4c1c)        = -1 EINVAL (Invalid argument)
close(5)                                = 0
open("/usr/share/locale/locale.alias", O_RDONLY) = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=2586, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f7c000
read(5, "# Locale name alias data base.\n#"..., 2048) = 2048
read(5, "rean.euc \tko_KR.eucKR\nko_KR\t\tko_"..., 2048) = 538
read(5, "", 2048)                       = 0
close(5)                                = 0
munmap(0xb7f7c000, 4096)                = 0
open("/usr/share/locale/de/LC_MESSAGES/libc.mo", O_RDONLY) = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=123187, ...}) = 0
mmap2(NULL, 123187, PROT_READ, MAP_PRIVATE, 5, 0) = 0xb7f5e000
close(5)                                = 0
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = 5
fstat64(5, {st_mode=S_IFREG|0644, st_size=25700, ...}) = 0
mmap2(NULL, 25700, PROT_READ, MAP_SHARED, 5, 0) = 0xb7f57000
close(5)                                = 0
open("/usr/lib/gconv/ISO8859-15.so", O_RDONLY) = 5
read(5, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0p\3\0\000"...,
512) = 512
fstat64(5, {st_mode=S_IFREG|0644, st_size=9480, ...}) = 0
mmap2(NULL, 12316, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 5,
0) = 0xb7bb6000
mmap2(0xb7bb8000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 5, 0x1) = 0xb7bb8000
close(5)                                = 0
write(1, "xfsrestore: unable to construct "..., 94xfsrestore: unable
to construct a file system handle for /mnt/sda3: Das Argument ist
ung�ltig
) = 94
rt_sigaction(SIGCHLD, {SIG_IGN}, {SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {SIG_IGN}, {SIG_IGN}, 8) = 0
write(1, "xfsrestore: Restore Status: ERRO"..., 34xfsrestore: Restore
Status: ERROR
) = 34
exit_group(1)                           = ?
Process 5078 detached
Connection to 192.168.1.213 closed.


#########################################
#########################################
#########################################


% cat root.xfs | ssh root@192.168.1.213 strace xfsrestore - /mnt/sda3
Password:
execve("/sbin/xfsrestore", ["xfsrestore", "-", "/mnt/sda3"], [/* 13
vars */]) = 0
brk(0)                                  = 0x808c000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f5f000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=187135, ...}) = 0
mmap2(NULL, 187135, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f31000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libuuid.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\0
\20\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=12656, ...}) = 0
mmap2(NULL, 15440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7f2d000
mmap2(0xb7f30000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7f30000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libhandle.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\0@\n\0\000"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=7144, ...}) = 0
mmap2(NULL, 10164, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7f2a000
mmap2(0xb7f2c000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7f2c000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libattr.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\0p\f\0\000"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=12820, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f29000
mmap2(NULL, 15680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0xb7f25000
mmap2(0xb7f28000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7f28000
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\260e\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1356012, ...}) = 0
mmap2(NULL, 1361520, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0) = 0xb7dd8000
mmap2(0xb7f1f000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x147) = 0xb7f1f000
mmap2(0xb7f22000, 9840, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f22000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7dd7000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7dd76f0,
limit:1048575, seg_32bit:1, contents:0, read_exec_only:0,
limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7f1f000, 4096, PROT_READ)   = 0
munmap(0xb7f31000, 187135)              = 0
open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=16969248, ...}) = 0
mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7bd7000
mmap2(NULL, 4096, PROT_READ, MAP_PRIVATE, 3, 0x321) = 0xb7f5e000
brk(0)                                  = 0x808c000
brk(0x80ad000)                          = 0x80ad000
close(3)                                = 0
getpid()                                = 5083
getrlimit(RLIMIT_AS, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_STACK, {rlim_cur=32768*1024, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=32768*1024, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_DATA, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
setrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY}) = 0
getcwd("/UNIONFS/root", 4096)           = 14
stat64("/var/lib/xfsdump", 0xbfd418e0)  = -1 ENOENT (No such file or directory)
stat64("/var/xfsdump", 0xbfd41880)      = -1 ENOENT (No such file or directory)
open("/dev/tty", O_RDWR|O_LARGEFILE)    = -1 ENXIO (No such device or address)
dup(2)                                  = 3
fcntl64(3, F_GETFL)                     = 0x2 (flags O_RDWR)
fstat64(3, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f5d000
_llseek(3, 0, 0xbfd413a8, SEEK_CUR)     = -1 ESPIPE (Illegal seek)
open("/usr/share/locale/locale.alias", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=2586, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f5c000
read(4, "# Locale name alias data base.\n#"..., 2048) = 2048
read(4, "rean.euc \tko_KR.eucKR\nko_KR\t\tko_"..., 2048) = 538
read(4, "", 2048)                       = 0
close(4)                                = 0
munmap(0xb7f5c000, 4096)                = 0
open("/usr/share/locale/de/LC_MESSAGES/libc.mo", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=123187, ...}) = 0
mmap2(NULL, 123187, PROT_READ, MAP_PRIVATE, 4, 0) = 0xb7f3e000
close(4)                                = 0
open("/usr/lib/gconv/gconv-modules.cache", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=25700, ...}) = 0
mmap2(NULL, 25700, PROT_READ, MAP_SHARED, 4, 0) = 0xb7f37000
close(4)                                = 0
open("/usr/lib/gconv/ISO8859-15.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0p\3\0\000"...,
512) = 512
fstat64(4, {st_mode=S_IFREG|0644, st_size=9480, ...}) = 0
mmap2(NULL, 12316, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4,
0) = 0xb7f33000
mmap2(0xb7f35000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1) = 0xb7f35000
close(4)                                = 0
write(3, "/dev/tty: Kein passendes Ger\344t b"..., 68/dev/tty: Kein
passendes Ger�t bzw. keine passende Adresse gefunden
) = 68
close(3)                                = 0
munmap(0xb7f5d000, 4096)                = 0
fstat64(1, {st_mode=S_IFSOCK|0777, st_size=0, ...}) = 0
xfsrestore: using file dump (drive_simple) strategy
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7f5d000
write(1, "xfsrestore: using file dump (dri"..., 52) = 52
mmap2(NULL, 270336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0xb7b95000
xfsrestore: version 2.2.45 (dump format 3.0)write(1, "xfsrestore:
version 2.2.45 (dump"..., 44) = 44
 - Running single-threaded
write(1, " - Running single-threaded\n", 27) = 27
time(NULL)                              = 1216723678
stat64("/mnt/sda3", {st_mode=S_IFDIR|0755, st_size=38, ...}) = 0
mkdir("/mnt/sda3/xfsrestorehousekeepingdir", 0700) = -1 EEXIST (File exists)
open("/mnt/sda3/xfsrestorehousekeepingdir/state",
O_RDWR|O_CREAT|O_LARGEFILE, 0600) = 3
fstat64(3, {st_mode=S_IFREG|0600, st_size=20480, ...}) = 0
mmap2(NULL, 20480, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0xb7b90000
geteuid32()                             = 0
munmap(0xb7b90000, 20480)               = 0
ftruncate64(3, 20480)                   = 0
fstat64(3, {st_mode=S_IFREG|0600, st_size=20480, ...}) = 0
mmap2(NULL, 20480, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0xb7b90000
statfs64("/mnt/sda3", 84, {f_type=0x58465342, f_bsize=4096,
f_blocks=2201496, f_bfree=2200427, f_bavail=2200427, f_files=8816192,
f_ffree=8816187, f_fsid={2051, 0}, f_namelen=255, f_frsize=4096}) = 0
open("/mnt/sda3", O_RDONLY|O_LARGEFILE) = 4
ioctl(4, 0xc01c5868, 0xbfd4178c)        = -1 EINVAL (Invalid argument)
close(4)                                = 0
xfsrestore: unable to construct a file system handle for /mnt/sda3:
Das Argument ist ung�ltig
write(1, "xfsrestore: unable to construct "..., 94) = 94
rt_sigaction(SIGCHLD, {SIG_IGN}, xfsrestore: Restore Status: ERROR
{SIG_DFL}, 8) = 0
rt_sigaction(SIGCHLD, {SIG_IGN}, {SIG_IGN}, 8) = 0
write(1, "xfsrestore: Restore Status: ERRO"..., 34) = 34
exit_group(1)                           = ?
Process 5083 detached



Again, the German error message means 'argument invalid'


Thanks,
RIchard

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 12:51, Richard Hartmann
<richih.mailinglist@gmail.com> wrote:

> write(3, "/dev/tty: Kein passendes Ger\344t b"..., 68/dev/tty: Kein
> passendes Ger�t bzw. keine passende Adresse gefunden
> ) = 68

'No suitable device found or address found.'

Re: xfsrestore over ssh?

[Timothy Shimmin]

Richard Hartmann wrote:
> On Tue, Jul 22, 2008 at 09:04, Timothy Shimmin <tes@sgi.com> wrote:
>> If you could strace it then we could see what call was failing> in path_to_fshandle().
> First with -ttt to get rid of a tty allocation error, then without:
> % cat root.xfs | ssh -ttt root@192.168.1.213 strace xfsrestore - /mnt/sda3

>From your output:
> open("/mnt/sda3", O_RDONLY|O_LARGEFILE) = 4
> ioctl(4, 0xc01c5868, 0xbfd4178c)        = -1 EINVAL (Invalid argument)
> close(4) 

(I probably should have just asked for:
 # strace -o output -e trace=open,ioctl xfsrestore ...)


> On Tue, Jul 22, 2008 at 12:49, Richard Hartmann
> <richih.mailinglist@gmail.com> wrote:
> 
>> > The Knoppix boot CD is am using to restore has 2.2.24-1, btw.
> 
> Grml to the rescue.. I downloaded a grml iso, which has 2.2.45-1,
> and was able to restore the image.
> 
> Extremely annoying, as I spent quite some time poking various
> options, thinking I had been doing something very basic very
> wrong. I assume the issue has been fixed between .24 and .45.
> 
> 
> Thanks again,
> Richard


Okay, my best guess is that you are trying to restore to a non-xfs
filesystem. This was fixed again in 2.2.26 so that it would work
on a non-xfs filesystem.
Otherwise the xfs ioctl will be being called and get back an EINVAL
as we saw in the strace.

Personally, I can't remember why we are bothering with handle code
in restore (in dump, yes, because of bulkstat but restore....
I vaguely remember a comment about optimitisation).



Looking at the code (annotated version) in restore:

wkendall  |1.34 |master-melb:xfs-cmds:187436a|  /* effectively initialize libhandle on this filesystem by
wkendall  |1.34 |master-melb:xfs-cmds:187436a|   * allocating a file system handle. this needs to be done
wkendall  |1.34 |master-melb:xfs-cmds:187436a|   * before any open_by_handle() calls (and possibly other
wkendall  |1.34 |master-melb:xfs-cmds:187436a|   * libhandle calls).
wkendall  |1.34 |master-melb:xfs-cmds:187436a|   */
wkendall  |1.34 |master-melb:xfs-cmds:187436a|  if ( persp->a.dstdirisxfspr ) {
wkendall  |1.34 |master-melb:xfs-cmds:187436a|          void    *fshanp;
wkendall  |1.34 |master-melb:xfs-cmds:187436a|          size_t  fshlen=0;
wkendall  |1.34 |master-melb:xfs-cmds:187436a|
wkendall  |1.34 |master-melb:xfs-cmds:187436a|          if(path_to_fshandle(persp->a.dstdir, &fshanp, &fshlen)) {
wkendall  |1.34 |master-melb:xfs-cmds:187436a|                  mlog( MLOG_NORMAL,
wkendall  |1.34 |master-melb:xfs-cmds:187436a|                          _("unable to construct a file "
wkendall  |1.34 |master-melb:xfs-cmds:187436a|                            "system handle for %s: %s\n"),
wkendall  |1.34 |master-melb:xfs-cmds:187436a|                          persp->a.dstdir,
wkendall  |1.34 |master-melb:xfs-cmds:187436a|                          strerror( errno ));
wkendall  |1.34 |master-melb:xfs-cmds:187436a|                  return BOOL_FALSE;
wkendall  |1.34 |master-melb:xfs-cmds:187436a|          }
wkendall  |1.34 |master-melb:xfs-cmds:187436a|          /* libhandle has it cached, release this copy */
wkendall  |1.34 |master-melb:xfs-cmds:187436a|          free_handle(fshanp, fshlen);
wkendall  |1.34 |master-melb:xfs-cmds:187436a|  }
wkendall  |1.34 |master-melb:xfs-cmds:187436a|

----------------------------
revision 1.34
date: 2005/02/10 02:14:17;  author: wkendall.bonnie.engr.sgi.com;  state: Exp;  lines: +34 -26
modid: master-melb:xfs-cmds:187436a
Fix a couple of spots in xfsrestore where XFS-specific calls were
being made without first checking to see if the filesystem being
restored is XFS.
Merge of master:xfs-cmds:187436a by kenmcd.
----------------------------

xfsdump-2.2.26 (09 February 2005)
        - Fix xfsrestore so that it can restore to non-XFS filesystems again.


--Tim

Re: xfsrestore over ssh?

[Richard Hartmann]

On Wed, Jul 23, 2008 at 02:19, Timothy Shimmin <tes@sgi.com> wrote:


> Okay, my best guess is that you are trying to restore to a non-xfs
> filesystem. This was fixed again in 2.2.26 so that it would work
> on a non-xfs filesystem.
> Otherwise the xfs ioctl will be being called and get back an EINVAL
> as we saw in the strace.

As I cancelled the first working xfsrestore (kept the strace in the
command), re-mkfs-ed and then restored, there is no way to verify,
but I am _sure_ it was a xfs partition. I did not even know you could
restore to non-xfs so I would never try to do that (not that I would use
anything else, anyway ;)


Thanks for looking into this,
Richard

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 08:33, Nathan Scott <nscott@aconex.com> wrote:

> "unable to construct a file system handle" - theres only one place
> in the restore code that can come from - the path_to_fshandle call.
> Is there a 32 bit userspace and 64 bit kernel on the machine where
> xfsrestore is running?

The dump was created on a 32 bit system, is stored on a 32 bit
system and I am trying to restore on (the first) 32 bit system, again.

Both the backed-up & the storage system have Debian's 2.2.48-1
version of xfsdump.


> Its not clear to me what that code in xfsrestore is trying to do,
> you may be able to just comment it out...?!?

I would like to avoid hacks like this if possible at all. That is asking
for trouble, especially when the root file system is concerned :/



Richard

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 12:45, Richard Hartmann
<richih.mailinglist@gmail.com> wrote:

> Both the backed-up & the storage system have Debian's 2.2.48-1
> version of xfsdump.

The Knoppix boot CD is am using to restore has 2.2.24-1, btw.


Richard

Re: xfsrestore over ssh?

[Richard Hartmann]

On Tue, Jul 22, 2008 at 12:49, Richard Hartmann
<richih.mailinglist@gmail.com> wrote:

> The Knoppix boot CD is am using to restore has 2.2.24-1, btw.

Grml to the rescue.. I downloaded a grml iso, which has 2.2.45-1,
and was able to restore the image.

Extremely annoying, as I spent quite some time poking various
options, thinking I had been doing something very basic very
wrong. I assume the issue has been fixed between .24 and .45.


Thanks again,
Richard