Re: [rdiff-backup-users] rdiff-backup Input/output error

[Martin Pool]

On 17 Aug 2004, "Thomas S. Dixon" <address@hidden> wrote:
> Greetings all,
> I have 2 questions, but first some background. We've been using 
> rdiff-backup for about 6 months and it's been fantastic. Unfortunately, 
> we lost some disks in our storage enclosure (which held the rdiffs) and 
> had to start from scratch. I have now restored the rdiffs back to the 
> enclosure from tape. Rdiff-backup lists all the increments fine. 
> However, now I'm trying to run a subsequent backup to the restored 
> rdiff-backup location and it errors immediately. I believe that the 
> pertinent error is this:
> 
> OSError: [Errno 5] Input/output error: 
> '/backup/yellowstone/rdiff-backup-data/rdiff-backup.tmp.0'
> 
> So I have 2 questions. First, what is the function of this 
> rdiff-backup.tmp.0 file? I'm guessing it's a temp file used only by 
> rdiff-backup during a backup. My first thought were permissions, maybe 
> rdiff-backup couldn't create this file, but I was able to create it 
> manually. Second question is: What kinds of things might cause this 
> OSError? I've already looked at permissions and they seem fine.

Hi,

Errno 5 is EIO = "input/output error". (At least it is on Linux, and
many others, and that'd be consistent with this message.)  This
usually indicates an actual IO error, i.e. a problem with the
filesystem or device rather than a permissions problem.  Seeing it
often spoils your day. :-/

So I would carefully check if there are any problems with the device
you're trying to send to: run an fsck; do similar checks; check the
kernel logs; etc.

-- 
Martin

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