Plz try next way:
download u-boot zip archive again (i updated it),
prepare card with FAT16 partition, and formated with FAT 16 (mkfs.msdos -F 16 /dev/xxx )
Insert card in zaurus (only one must be inserted, if SD - no CF, if CF - no SD).
Run diagnostic menu (D+M),
Earse flash :
SERVICE 3/3 7. EXTRA MENU
[img]http://mail.pdaxrom.org/download/1.1.0beta4/Zaurus-7x0-860/07-06-06_1451.jpg\" border=\"0\" class=\"linked-image\" /]
EXTRA MENU 1.Zaurus Test
[img]http://mail.pdaxrom.org/download/1.1.0beta4/Zaurus-7x0-860/07-06-06_1452.jpg\" border=\"0\" class=\"linked-image\" /]
Extra MENU 2/4 10.NAND Flash Full Erase (press OK for erase)
[img]http://mail.pdaxrom.org/download/1.1.0beta4/Zaurus-7x0-860/07-06-06_1453.jpg\" border=\"0\" class=\"linked-image\" /]
As it finish, press Cancel until mail menu (SERVICE 1/3)
Select CF Update
[img]http://mail.pdaxrom.org/download/1.1.0beta4/Zaurus-7x0-860/07-06-06_1447.jpg\" border=\"0\" class=\"linked-image\" /]
you must see:
[img]http://mail.pdaxrom.org/download/1.1.0beta4/Zaurus-7x0-860/07-06-06_1439.jpg\" border=\"0\" class=\"linked-image\" /]
press OK for update flash:
[img]http://mail.pdaxrom.org/download/1.1.0beta4/Zaurus-7x0-860/07-06-06_1445.jpg\" border=\"0\" class=\"linked-image\" /]
as it finish, reboot it with OK pressed and install new system