USB Flash Drive Enablement and Support

ewhisper

Overview
Support added in releases 61D and 53Q and following
to allow reads/writes to USB generic storage devices.
Primarily this is intended for USB flash drives, to add
capability for data backup.
Boot support to be added in spring 2009 release of
firmware. Typical usage is diagnostics boot for CE's.
Software packages required
devices.common.IBM.usb provides USB system
driver.
devices.usbif.08025002 provides mass storage
driver.
Enablement
After insertion of flash drive into USB port, run
cfgmgr -l usb0.
Device shows up in lsdev as flashdrive0 (or 1 or
2, etc.)
Also creates device special files /dev/flashdrive0
and /dev/rflashdrive0
Usage
Can be read/written with backup/restore, tar, cpio, dd
– Destroys formatting if any existed (FAT32, etc.)
ISO file system can be mounted
– Use “mount -rv cdrfs /dev/flashdrive0 /mnt”
– ISO file system (created by mkisofs) is written to flashdrive with dd command,
“dd if=myimage.iso of=/dev/flashdrive0”
Note on supported devices
Have tested:
Lenovo 2GB Essential Memory Key
Kingston 4GB Data Traveller
SanDisk 4GB Cruzer
Have found some problems with Kingston 1GB
model, but others have reported general success
with use of various models (including USB hard
drives).

[ 本帖最后由 ewhisper 于 2009-2-4 10:00 编辑 ]