About: How to replace microdrive with compactflash in Palm LifeDrive

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The Palm LifeDrive uses an internal 4GB microdrive, which is partitioned into a 64MB storage heap, a 22MB "ROM" image, and a 3.73GB user volume. To the user, the 64MB appears as program & data memory and the 3.73GB as the "LifeDrive" volume. The 22MB "ROM" image is hidden. Older Palms like the Palm V used SDRAM as program & data RAM, which required power to maintain storage. If the batteries ran down, all user data & software would be lost. More recent Palms like the Palm TX use non-volatile flash memory for program & data memory, thus safeguarding against data loss if the batteries run down.

Attributes	Values
rdfs:label	How to replace microdrive with compactflash in Palm LifeDrive
rdfs:comment	The Palm LifeDrive uses an internal 4GB microdrive, which is partitioned into a 64MB storage heap, a 22MB "ROM" image, and a 3.73GB user volume. To the user, the 64MB appears as program & data memory and the 3.73GB as the "LifeDrive" volume. The 22MB "ROM" image is hidden. Older Palms like the Palm V used SDRAM as program & data RAM, which required power to maintain storage. If the batteries ran down, all user data & software would be lost. More recent Palms like the Palm TX use non-volatile flash memory for program & data memory, thus safeguarding against data loss if the batteries run down.
dcterms:subject	Howto
dbkwik:how-to/prop...iPageUsesTemplate	dbkwik:resource/tqC59GJtTxyv4cqub48fRA== dbkwik:resource/rERhq3I7SUYOdeRTTsu5_g==
Age	18(xsd:integer)
Difficulty	med
Cost	60(xsd:integer)
Time	10800.0
abstract	The Palm LifeDrive uses an internal 4GB microdrive, which is partitioned into a 64MB storage heap, a 22MB "ROM" image, and a 3.73GB user volume. To the user, the 64MB appears as program & data memory and the 3.73GB as the "LifeDrive" volume. The 22MB "ROM" image is hidden. Older Palms like the Palm V used SDRAM as program & data RAM, which required power to maintain storage. If the batteries ran down, all user data & software would be lost. More recent Palms like the Palm TX use non-volatile flash memory for program & data memory, thus safeguarding against data loss if the batteries run down. The LifeDrive design utilizes a Hitachi 4GB microdrive instead of any flash memory. Namely, a 64MB partition of the microdrive is used as the program and data storage space. While this retains the advantage of non-volatile program & data storage, this introduces a slight lag occasionally during normal use, as the microdrive is spun up & down frequently to conserve power. As well, the need to spin the microdrive platter limits the battery life of the LifeDrive. Lastly, microdrives are sensitive to external shocks, and aren't as robust as flash memory. As a possible hack to improve battery life, performance and reliability, some users have attempted to replace the internal 4GB microdrive with compact flash cards. Initially, many such efforts weren't successful, as these modified LD units wouldn't boot off of a CF, even after a byte-for-byte image of the original MD was written to the CF. However, LD users at a discussion at 1src.com found a successful combination of hardware and software steps that led to success. This document will describe the successful methods used in replacing the LD microdrive with a compact flash card, as well as some unsuccessful methods. Hopefully, other LD users can learn and contribute to the general body of knowledge.

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