You'll need the BootBlaster and bootldr files that came with your Linux distribution. First you'll transfer them onto the iPAQ using one of several methods, then you'll save a copy of wince, then you'll reflash your machine with the CRL bootldr.

• using ActiveSync -- if you have a machine running Windows with ActiveSync installed
• using Synce -- if you have Synce (Linux clone of ActiveSync) installed
• using a CF/MMC/SD card -- if you have a card and matching socket
• using a FTP daemon -- if you have Internet connectivity to your iPAQ (preferred)
• using Pocket IE -- if you have internet connectivity to your iPAQ