Tips for rsyncing MP3s from Linux to FAT32 USB external hard-drive
Posted by Larry Karnowski Mon, 21 Jul 2008 00:22:00 GMT
Here are some important lessons I learned about accurately copying MP3s (or really any kind of file) from a Linux ext3 filesystem to an external USB hard-drive using FAT32.
When mounting the USB hard drive, be sure to use iocharset=utf8 in your mount options. (To be safest, I put this in my /etc/fstab so I won't forget it.) Otherwise you will have problems creating directories or files that have European or Asian characters in their names. I had some real problems with all the Mexican, Celtic, and Yako Kanno albums I own. Rsync will just flat out refuse to create them without this option. (And forget the Icelandic heavy metal. It's right out.)
Similarly, when mounting, you might want to include the "shortname=mixed" mount option too. Although I personally didn't have a big problem with this, several posts I read online mentioned that rsync might try to upload a file multiple times. The issue is that since FAT32 stores both a short-name (remember the 8.3 names?) and a long-name, the filesystem can get confused occasionally. Again, I didn't see this myself. I used the option, though, with no trouble.
Lastly, don't use the standard "rsync -a" (archive) flag. It tries to maintain user and group ownership, and FAT32 doesn't support either so you get a lot of "chown NO PERMISSION" errors, etc. Basically, you're making rsync do more work than it has to. Similarly, the "-a" option also tries to preserve symlinks which FAT32 doesn't support. I'm not really sure what would happen in that case, probably more warnings. Instead use "rsync -rt" to recurse through each subdirectory and to maintain the file's last modified time. That's about all FAT32 will let you do!
Hope this helps! Keep rockin'!
Hey I appreciated these tips. I'm using Ubuntu exclusively, and have a FAT32 external HDD for backup... I use fat so I can recover files from Windows or Mac machines, because I don't know anyone else who uses Linux.
I'm a little worried that the utf8 option in fstab will make files unreadable in other operating systems -- is this true? Have you tried accessing those files on other OS's? I know MS-DOS doesn't allow a good number of funky characters (*, !, etc.), will utf8 interfere?
Thanks, Elliott.
To follow up...
When I mount the file system as utf-8 my dmesg is showing this message:
FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
Is this not a little worrisome?
I also use linux but i am a beginner,thank you for the article.
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Thanks for sharing the information.It is definitely going to help me some time.
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To follow up...
When I mount the file system as utf-8 my dmesg is showing this message:
FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
Is this not a little worrisome?
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