Hi,
I'm trying to use rdiff-backup to save some directories from a virtual
machine to the host. (both guest and host run linux)
The idea is to run rdiff-backup within the virtual machine itself. I access
the host filesystem by using chirp. The host run a chirp server to share a
target backup directory. Then I mounted the host shared directory using
chirp_fuse inside the virtual machine.
So the final situation is that the virtual machine has a remote directory
mounted in /tmp which refers to the target backup directory inside the host.
Now I want to backup my vm's directory to the directory in the host.
The mounted directory works well in both ways. All the permissions are set
and I'm able to copy files and directories by using the cp command for
instance.
When I want to launch my backup I type a simple rdiff-backup command which
looks like that:
rdiff-backup -v5 /home/poffet/ /tmp/bck/131.243.51.142/
and I got the following error:
[EMAIL PROTECTED] bck]$ rdiff-backup -v5 /home/poffet/ /tmp/bck/
131.243.51.142/
Using rdiff-backup version 1.2.2
Cannot change permissions on target directory.
Unable to import module xattr.
Extended attributes not supported on filesystem at /home/poffet
Unable to import module posix1e from pylibacl package.
POSIX ACLs not supported on filesystem at /home/poffet
Unable to import win32security module. Windows ACLs
not supported by filesystem at /home/poffet
escape_dos_devices not required by filesystem at /home/poffet
-----------------------------------------------------------------
Detected abilities for source (read only) file system:
Access control lists Off
Extended attributes Off
Windows access control lists Off
Case sensitivity On
Escape DOS devices Off
Mac OS X style resource forks Off
Mac OS X Finder information Off
-----------------------------------------------------------------
Warning: hard linking not supported by filesystem at /tmp/bck/
131.243.51.142/rdiff-backup-data
Unable to import module xattr.
Extended attributes not supported on filesystem at /tmp/bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0
Unable to import module posix1e from pylibacl package.
POSIX ACLs not supported on filesystem at /tmp/bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0
Unable to import win32security module. Windows ACLs
not supported by filesystem at /tmp/bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0
escape_dos_devices not required by filesystem at /tmp/bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0
Exception '[Errno 13] Permission denied: '/tmp/bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0/symlinked_file2'' raised
of class 'exceptions.OSError':
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 304, in
error_check_Main
try: Main(arglist)
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 324, in
Main
take_action(rps)
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 280, in
take_action
elif action == "backup": Backup(rps[0], rps[1])
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 334, in
Backup
rpout.conn.fs_abilities.backup_set_globals(rpin, force)
File "/usr/lib/python2.4/site-packages/rdiff_backup/fs_abilities.py", line
830, in backup_set_globals
dest_fsa = FSAbilities('destination').init_readwrite(Globals.rbdir)
File "/usr/lib/python2.4/site-packages/rdiff_backup/fs_abilities.py", line
165, in init_readwrite
subdir.delete()
File "/usr/lib/python2.4/site-packages/rdiff_backup/rpath.py", line 1054,
in delete
self.conn.shutil.rmtree(self.path)
File "/usr/lib/python2.4/shutil.py", line 164, in rmtree
onerror(os.remove, fullname, sys.exc_info())
File "/usr/lib/python2.4/shutil.py", line 162, in rmtree
os.remove(fullname)
Traceback (most recent call last):
File "/usr/bin/rdiff-backup", line 30, in ?
rdiff_backup.Main.error_check_Main(sys.argv[1:])
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 304, in
error_check_Main
try: Main(arglist)
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 324, in
Main
take_action(rps)
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 280, in
take_action
elif action == "backup": Backup(rps[0], rps[1])
File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 334, in
Backup
rpout.conn.fs_abilities.backup_set_globals(rpin, force)
File "/usr/lib/python2.4/site-packages/rdiff_backup/fs_abilities.py", line
830, in backup_set_globals
dest_fsa = FSAbilities('destination').init_readwrite(Globals.rbdir)
File "/usr/lib/python2.4/site-packages/rdiff_backup/fs_abilities.py", line
165, in init_readwrite
subdir.delete()
File "/usr/lib/python2.4/site-packages/rdiff_backup/rpath.py", line 1054,
in delete
self.conn.shutil.rmtree(self.path)
File "/usr/lib/python2.4/shutil.py", line 164, in rmtree
onerror(os.remove, fullname, sys.exc_info())
File "/usr/lib/python2.4/shutil.py", line 162, in rmtree
os.remove(fullname)
OSError: [Errno 13] Permission denied: '/tmp/bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0/symlinked_file2'
However if I list the content of the target backup directory in the host I
have the following result:
[EMAIL PROTECTED]:~/vml/backup$ ls -l rdiff-backup-data/rdiff-backup.tmp.0/
total 8
-rw------- 2 popei popei 0 2008-12-02 17:12 hardlinked_file1
drwx------ 2 popei popei 4096 2008-12-02 17:12 hl
lrwxrwxrwx 1 popei popei 72 2008-12-02 17:12 symlinked_file2 -> /bck/
131.243.51.142/rdiff-backup-data/rdiff-backup.tmp.0/symlinked_file1
It seems that the symlinked_file2 is set to a wrong directory path. It
should be /tmp/bck/131... and so on.
I have absolutely no clues on how to solve this issue and any help is more
than welcome!
(I'm using rdiff-backup 1.2.2 and chirp 2.4.3 from cctools)
Julien
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