Oh, I can also execute:
> /opt/local/bin/rsync --numeric-ids --perms --owner --group -D -- 
> links --hard-links --times --block-size=2048 --recursive --ignore- 
> times -e /opt/local/bin/ssh [email protected]:/Users/

Which I'm pretty sure is effectively the same command, using ssh.  
Except no process is spawned on the client and without sudo, there's  
no privilege escalation.

So, it would appear that everything I can think of works as expected  
*except* backuppc's call with sender/receiver.

-james
On Aug 11, 2009, at 10:26 AM, James Kyle wrote:

> Further debugging:
>
> On the server I can execute the following command as the backuppc  
> user and it completes without error:
>> /opt/local/bin/rsync --numeric-ids --perms --owner --group -D -- 
>> links --hard-links --times --block-size=2048 --recursive --ignore- 
>> times [email protected]:/Users/backuppc .
>
>
> On the client, I looked in my system logs and for each rsync attempt  
> by BackupPC I get an entry that says:
>
>> Aug 11 00:59:26 17369-baker sudo[442]: backuppc : TTY=unknown ;  
>> PWD=/Users/backuppc ; USER=root ; COMMAND=/Network/macports/ppc/bin/ 
>> rsync --server --sender --numeric-ids --perms --owner --group -D -- 
>> links --hard-links --times --block-size=2048 --recursive --ignore- 
>> times . /Users/
>
> This, too, is in line with what I'd expect.
>
> The only thing I can think of is that it may do with differing  
> versions of ssh being used by client/server. I've installed a custom  
> openssh on the client, but it's not in the PATH. I'm investigating  
> how to set the path for non-interactive ssh sessions. The usual  
> suspects do not work, e.g. .bashrc, .bash_profile, /etc/bashrc, /etc/ 
> profile, even ssh [email protected] "export PATH=/usr/local/bin:$PATH;  
> echo $PATH" does not work.
>
> I'm unsure if this is the issue though.
>
> -james
> On Aug 10, 2009, at 3:10 PM, James Kyle wrote:
>
>> I can't figure out why rsync is failing, any tips/hints on how to  
>> debug is very much appreciated.
>>
>> I'm using ssh with pub/private keys.
>>
>> I can execute any arbitrary command using ssh from server to client  
>> (ssh -l backuppc ls / ), I can also manually execute rsync commands  
>> from user to client including that generated by backuppc itself.
>>> /usr/bin/ssh -x -n -l backuppc foo.local /usr/bin/sudo /Network/ 
>>> macports/ppc/bin/rsync  --numeric-ids --perms --owner --group -D -- 
>>> links --hard-links --times --block-size=2048 --recursive --ignore- 
>>> times . /Users/
>>
>> With server/sender removed. Of course, without the --sender/-- 
>> server opts it syncs the local directories of the client.
>> I'm unclear on exactly how to "emulate" the backuppc commands  
>> manually for testing or where to go form here.
>> Below is the sparse log output (cranked all the way up in debug  
>> level)
>>
>>> Contents of file /Volumes/backups/pc/foo.local/XferLOG.bad.z,  
>>> modified 2009-08-10 15:05:12 (Extracting only Errors)
>>>
>>> full backup started for directory /Users Running: /usr/bin/ssh -x - 
>>> n -l backuppc foo.local /usr/bin/sudo /Network/macports/ppc/bin/ 
>>> rsync -vv --server --sender --numeric-ids --perms --owner --group - 
>>> D --links --hard-links --times --block-size=2048 --recursive -- 
>>> ignore-times . /Users/ Xfer PIDs are now 79669
>>> Rsync command pid is 79669
>>> Fetching remote protocol
>>> Got remote protocol 30 Negotiated protocol version 28
>>> Checksum seed is 1853453170
>>> Got checksumSeed 0x6e797372
>>> Sent exclude: *Trash* Sent exclude: /proc/* Sent exclude: /dev/*  
>>> Sent exclude: *tmp/* Sent exclude: *.ogg Sent exclude: *.tmp Sent  
>>> exclude: *temp* Sent exclude: *Music* Sent exclude: *Movies* Sent  
>>> exclude: *.avi Sent exclude: *.mov Sent exclude: *.mpg Sent  
>>> exclude: *.mpeg Sent exclude: *.qt Sent exclude: *.wma Sent  
>>> exclude: .ra Sent exclude: *.au Sent exclude: *.Spotlight-* Sent  
>>> exclude: *.DS_Store Sent exclude: *hotfiles.btree Sent exclude: / 
>>> var Sent exclude: *.log Sent exclude: *.cpan Sent exclude: */var  
>>> Sent exclude: *Caches Sent exclude: *.cache Sent exclude:  
>>> *Parallels Sent exclude: /Volumes/* Sent exclude: *sparseimage  
>>> Sent exclude: *Downloads* Sent exclude: *VirtualBox/* Sent  
>>> exclude: *Support/VMware* Sent exclude: /Network/* Sent exclude: / 
>>> mach
>>> Read EOF:
>>> Tried again: got 0 bytes
>>> fileListReceive() failed
>>> Done: 0 files, 0 bytes Got fatal error during xfer  
>>> (fileListReceive failed) Backup aborted (fileListReceive failed)
>>> Not saving this as a partial backup since it has fewer files than  
>>> the prior one (got 0 and 0 files versus 0)
>>
>> Cheers,
>>
>> -jkyl
>>
>


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