Sometimes you just want to start from scratch. Here are a few pointers.
Changes to your NSLU2 environment happen in a few places:
The two items with * apply for unslung but are not modified when running the default Linksys firmware.
Let's see how those changes can be reset to default condition within those areas.
The ramdisk is a matter of flashing. Best advice is here: RecoverFromABadFlash
The SysConf area can be reset following this advice: ResetSysConf
With regards to the harddisk it is save to say that removing the partitions on some other PC and then reconnecting it to the slug and doing a format from the webinterface will wipe all former modifications. If you know how to reset the conf partition without doing a format, please let us know on this page. Thanks!