Bug 190357

Summary:	app-backup/flexbackup fails on very large files with afio back end
Product:	Gentoo Linux	Reporter:	John R. Graham <john_r_graham>
Component:	Current packages	Assignee:	No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it <maintainer-needed>
Status:	RESOLVED FIXED
Severity:	normal	CC:	fauli
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Patch applies afio large file fix.

Description John R. Graham gentoo-dev

2007-08-27 01:50:09 UTC

The problem occurs when using flexbackup with the afio back end.  afio tries very hard to produce archives that are cpio compatible.  However, if a file being backed up exceeds the size that cpio can handle (2GiB), afio warns of the potential issue, uses an extended (but non-cpio-compatible) file header that can handle the larger size, completes the backup successfully, and returns a non-zero result code.  flexbackup currently treats this result code as a hard error and marks the backup as failed.

There's an afio command line option to suppress this warning (and the resultant non-zero result code).  Since flexbackup can also use cpio as a back end, it seems reasonable to assume that those who want cpio-compatible archives should use cpio as the back end.

Patch coming.

- John

Comment 1 John R. Graham gentoo-dev

2007-08-27 01:54:48 UTC

Created attachment 129271 [details, diff]
Patch applies afio large file fix.

This patch adds a command line option to the invocation of afio that allows it to silently produce afio extended format archives if the incoming file size warrants.

- John

Comment 2 Christian Faulhammer (RETIRED) gentoo-dev

2007-09-01 19:49:40 UTC

Took your fix from Sunrise...thanks a lot.