[lbackup-discussion] Sample configuration for snapshot-backup on external TC harddisk

Matt Rosales reply to this message via the mailing list
Mon Mar 1 10:05:29 NZDT 2010


> The LBackup website is a wiki and content is a community effort.
I misunderstood, I will add content once I figure this issue out

> Is there any reason in particular you are opting to use TrueCrypt for the backup
I chose to use TrueCrypt because it is cross-platform; I can mount the
drive under other operating systems (if necessary) and have access to
the files, whereas I was unsure if this was possible with hdiutils.

> Finally, I would recommend against using spaces in the paths for your backups. LBackup will work fine with spaces in the path names. However, do not place a space in the name of the backup directory destination.
Noted; I have re-named the volume.

> If you are still having problems please provide the a compressed copy of your configuration directory and the output from the following command :
> vsdbutil -c "/Volumes/Athens Backup"

I think the problem is hinging around TrueCrypt and the way that
vsdbutil is handling the decrypted disk image. The command returns:
$ sudo /usr/sbin/vsdbutil -c "/Volumes/Athens_Backup/"
No entry found for '/Volumes/Athens_Backup/'.

It appears that no on-disk ownership database is being created by the vsdbutil.
Any ideas? Otherwise I am tempted to make a quick backup ignoring
permissions until I get the issue resolved, as I'm in a backup-less
limbo right now.

Thanks,
Matt


On Sun, Feb 28, 2010 at 8:26 PM, henri <shustak at connect.homeunix.com> wrote:
>> I'm trying to get my lbackup set up functionally, but have hit some
>> road blocks and find the documentation to be less than helpful. Its
>> too bad there is no wiki or forum on the lbackup.org website?
>
> The LBackup website is a wiki and content is a community effort.
>
> For further details please refer to the following link :
> http://www.lbackup.org/about#about_this_documentation
>
> If you are interested in improving the content of the LBackup site then please visit :
> http://www.lbackup.org/contribute
>
>
>> I am setting up lbackup on OS X 10.6 soley because I want a fully
>> encrypted snapshot backup of my system:
>
> If you want to have a solid bootable back I would suggest that you shut your system down and then use a tools such as Carbon Copy Cloner to make a backup to an encrypted disk image. Further details are available from : http://www.lbackup.org/full_system_backup
>
>
>> Time-machine will only make backups when logged out if the home folder is encrypted.
> Yes with the current TimeMachine this is the case.
>
> The recommended approach when using LBackup to backup your FileVault enabled home directory while you are logged into the system is to perform a file level backup of the mounted encrypted file-system.
>
> There are other approaches which LBackup will accommodate. However, provided you are logged into the system, this approach is reliable and as such is recommended.
>
>
>> I have formatted a 750gb external hard drive with TrueCrypt
>
> Is there any reason in particular you are opting to use TrueCrypt for the backup. It will work. However, there are bundled scripts which support the use of hdiutil. If you decide to use TrueCrypt and put together a set of scripts for mounting and un-mounting the encrypted file system then please consider releasing them to the LBackup project.
>
>
>> The documentation on lbackup.org only has a simplistic configuration listed, and so I am not sure if the default function of lbackup is to call rsync for snapshots... Does
>
> A more comprehensive LBackup configuration example is available once you install LBackup. Have a look at the "example_backup_config" configuration directory on your system : "/lbackup/example_backup_config/"
>
>
>> I made a test configuration file, however on execution I get this error:
>>
>> WARNING! : Permissions are disabled on backup destination volume.
>>            It is recommended that permissions on the destination
>>            volume are enabled.
>>            Failure to enable permissions will most likely result in
>>            the hard link system failing.
>>            Permissions may be enabled by issuing the following command as root :
>>            /usr/sbin/vsdbutil -a /Volumes/Athens Backup
>
> Because your volume name has a space in the name you will need to run the following command : /usr/sbin/vsdbutil -a "/Volumes/Athens Backup"
>
> Ensure you are running the command as root on the system.
>
> The following URL has information regarding the setup of permission on OS X volumes for Mac OS X systems : http://www.lbackup.org/permissions
>
> I would suggest that you run the following command to check that permissions have been enabled for your encrypted backup volume : vsdbutil -c "/Volumes/Athens Backup"
>
>
>> Is it OK to modify the config file to suppress this error?
> I would suggest that you do not modify the configuration to suppress this error. Doing so will mean that hard linking the backup snapshots together will fail.
>
>
>> Since lbackup.org recommends using truecrypt as a way to encrypt backups.
> Yes, TureCyrpt works well with LBackup. However, keep in mind that there are bundled support scripts for use with hdiutil.
>
> Finally, I would recommend against using spaces in the paths for your backups. LBackup will work fine with spaces in the path names. However, do not place a space in the name of the backup directory destination.
>
> If you are still having problems please provide the a compressed copy of your configuration directory and the output from the following command :
> vsdbutil -c "/Volumes/Athens Backup"
>
> Once you have this working, please consider generating some specific documentation relating to LBackup and TrueCrypt integration or submitting a screen cast on setting up LBackup and TrueCrypt integration.
>
> If you have further questions then let me know.
>
> ---------------------------------------------------------------------
> This email is protected by LBackup, an open source backup solution.
> http://www.lbackup.org
>
>
>
> _______________________________________________
> http://www.lbackup.org
> lbackup-discussion mailing list
> lbackup-discussion at lists.connect.homeunix.com
> http://lists.connect.homeunix.com/listinfo/lbackup-discussion
>


More information about the lbackup-discussion mailing list