Re: ACLs

[Mike Kallies <mike.kallies@gmail.com>]

Hello Tim,

I used the -p option.

e.g., below:

mike@vm-mktest:~/tarsnap$ getfacl acltest/dir1/file3
# file: acltest/dir1/file3
# owner: mike
# group: mike
user::rw-
user:root:r--
group::rw-
mask::rw-
other::r--

mike@vm-mktest:~/tarsnap$ tarsnap --keyfile ./acltest.key -c
--cachedir ./tarsnapcache/ -f aclbackup ./acltest
mike@vm-mktest:~/tarsnap$ mv acltest acltest.old
mike@vm-mktest:~/tarsnap$ tarsnap --keyfile ./acltest.key -p -x
--cachedir ./tarsnapcache/ -f aclbackup acltest
mike@vm-mktest:~/tarsnap$ getfacl acltest/dir1/file3
# file: acltest/dir1/file3
# owner: mike
# group: mike
user::rw-
group::rw-
other::r--


I've also tried:
  - backing up and restoring using sudo.
  - compiling and installing on an Ubuntu 12.04 LTS

Tarsnap 1.0.35 in my tests.

Thanks for any input,

-Mike


On Tue, Dec 10, 2013 at 12:10 PM, Tim Bishop <tim-lists@bishnet.net> wrote:
> On Mon, Dec 09, 2013 at 02:41:11PM +0100, Mike Kallies wrote:
>> Not sure if this is just an issue for me, but ACLs on tarsnap are
>> giving me some trouble.
>>
>> I cross-compiled Tarsnap to run on an ARM box for a QNAP appliance, it
>> seems to work great.  The only problem is that ACLs are giving me
>> trouble.
>>
>> This is the original which was backed up then 'mv'ed to testfolder.orig:
>>
>> [/share/MD0_DATA] # getfacl testfolder.orig/test.txt
>> # file: testfolder.orig/test.txt
>> # owner: mike
>> # group: everyone
>> user::rwx
>> user:guest:---
>> group::rwx
>> group:dev:rwx
>> group:bots:r-x
>> mask::rwx
>> other::rwx
>>
>> This is the restore whcih was brought back to testfolder/test.txt
>> (along with the whole directory)
>>
>> [/share/MD0_DATA] # getfacl testfolder/test.txt
>> # file: testfolder/test.txt
>> # owner: mike
>> # group: everyone
>> user::rwx
>> group::rwx
>> other::rwx
>>
>>
>> As you can see the ACLs seem to be stripped, this applies to all the
>> other files and folders which were brought back.
>>
>> Anyone have any suggestions as to what I might try to troubleshoot?
>> Does anyone else have a problem with ACLs?  Did I break something
>> cross-compiling?
>
> What flags did you use when doing the restore? Did you use -p?
>
>      -p      (x mode only) Preserve file permissions.  Attempt to restore the
>              full permissions, including owner, file modes, file flags and
>              ACLs, if available, for each item extracted from the archive.  By
>              default, newly-created files are owned by the user running
>              tarsnap, the file mode is restored for newly-created regular
>              files, and all other types of entries receive default permis-
>              sions.  If tarsnap is being run by root, the default is to
>              restore the owner unless the -o option is also specified.
>
> Tim.
>
> --
> Tim Bishop
> http://www.bishnet.net/tim/
> PGP Key: 0x6C226B37FDF38D55
>