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1  General Category / General Discussion / Installing on Ubuntu on: April 15, 2008, 01:58:45 PM
This was very easy on Ubuntu Feisty, and all the Ruby gurus will not need this, but I thought I'd just mention this for mere mortals:

- to install pre-requisites (dependencies) - sudo aptitude install ca-certificates ruby libopenssl-ruby
- then just un-tar the s3sync file and use 'ruby s3sync.rb' etc as per README.txt

This will probably also work on Debian.
2  General Category / Questions / Verifying files were transferred correctly on: April 15, 2008, 01:40:50 PM
How can I check that files made it to S3 without corruption?  Is there some checksumming going on within s3sync, and if so how can I get s3sync/cmd to display this, and then compare to a local MD5 or SHA-1 checksum? 

Also, is there some way to simply show the size of files (to the exact no. of bytes) on S3?  I tried s3fox as well but it just shows KB.

I know S3 is very reliable but I'm just trying to make sure any errors can be caught when sending backup files, particularly during initial testing.

3  General Category / Feature Requests / Re: Preserve modification times? on: April 15, 2008, 01:28:41 PM
I'd also recommend looking at DAR, an open source tool that is included in some distros including Ubuntu - it's a bit like tar but more powerful, e.g. it can compress and encrypt block-by-block, meaning that if you hit a bad disk block you would only lose one file (may not be a problem with Amazon S3 but you could hit this on a local server).  It's also got some nice features for differential and incremental backups, so you could run a single DAR base backup on installing a new system (or maybe every month) and then just do differentials (relative to base) or incrementals (relative to last incremental).

DAR also stores extended attributes in case those are important to you, and can run on almost any Linux box as it has few dependencies.
4  General Category / General Discussion / Thank you! on: April 15, 2008, 01:03:31 PM
Thanks for writing a really, really useful tool!  It didn't take long to set up on Ubuntu Feisty and worked straight away.  Far simpler to get working than configuring JungleDisk, which unfortunately doesn't yet seem reliable for rsync of larger files (CD-ROM sized), and whose GUI still doesn't work for me...  Now I can write scripts that either rsync to a local server or s3sync to Amazon - very nice!

One thing that would be great is a simple way to configure the path for all the files in the s3sync directory that are 'require'd in the source code - I ended up hacking in an absolute path but I'm sure Ruby has a more elegant way.  I wanted to just do a symlink to ~/bin/s3cmd and s3sync, so I can just do 's3cmd list' etc. 
5  General Category / Report Bugs / Re: prefix may contain leading slash, but s3fox doesn't play nice on: April 15, 2008, 12:59:49 PM
I had this issue as well, but wanted to clarify that it's very easily avoided by using paths of the form bucket:path/to/file i.e. without a / before the 'path' here.
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