---
name: "logredo"
section: "8"
platform: "linux"
package: "jfsutils"
version: "1.0.14-1"
release: "Debian 3.0 (Woody)"
platforms: ["linux"]
url: "https://new.carta.tech/logredo"
---

# logredo(8)

"replay" a JFS formatted device's journal log

## NAME

**logredo** - "replay" a JFS formatted device's journal log

## SYNOPSIS

**logredo** *device*

## DESCRIPTION

**logredo** applies all committed transactions recorded in the JFS journal log since the most recent synch point.  Its goal is to put the JFS  file system in the state it would have been in if all transactions had  been applied, in order, by the JFS file system itself.

*device* is the special file name corresponding to the actual device on which the journal log will be replayed (e.g.  **/dev/hdb1** ).

**logredo** must be run as root.

## WARNING

**logredo** is called from within  **fsck.jfs**, and is not recommended to be run as a stand-alone utility unless completely necessary, and only by advanced users with a clear understanding of  journaling in a file system.

## BUGS

If you find a bug in  **JFS** or  **logredo**, please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site:

```
http://oss.software.ibm.com/jfs
```

Please send as much pertinent information as possible, including any  **logredo** error messages and the complete output of running  **fsck.jfs** with the  **-v** option on the JFS device.

## SEE ALSO

[**xchklog**(8)](/xchklog/8.md), [**xchkdmp**(8)](/xchkdmp/8.md), [**mkfs.jfs**(8)](/mkfs.jfs/8.md), [**fsck.jfs**(8)](/fsck.jfs/8.md), [**logdump**(8)](/logdump/8.md), [**xpeek**(8)](/xpeek/8.md)

## AUTHORS

```
Barry Arndt  (barndt@us.ibm.com)
William Braswell, Jr.
```

**logredo** is maintained by IBM.

```
See the JFS project web site for more details:
http://oss.software.ibm.com/jfs
```