Sharp Zaurus SL-C3000 Instruction Manual page 63

my Zaurus SL-C3000 and SL-C3100
# ln -s /home/expansion/usr/local /home/root/usr/local
Once you have tested that everything still works, you can remove /home/root/usr/local.bak
Make sure you install the automounter package [automounter-c3000_0.5.0_arm.ipk] or else your
loopback filesystem might not get automatically mounted after a reboot.
Alternatively, instead of moving files manually after they have been installed, you can also just
install files to the loopback filesystem directly. The default installer won't let you do it, but my xipk
install script (which is part of my ipktools package) does allow it.
By default xipk installs to /hdd3/programs, so you should mount your loopback filesystem as
/hdd3/programs or change /etc/xipk.conf to contain the mount point of your loopback filesystem.
Then you can do the following to install applications to hdd3:
# xipk ipkfile
Enable large SD cards
The default SD/MMC driver only supports SD and MMC cards of sizes up to 1GB. Using the updated
driver which is taken from the C3200, it is possible to use larger SD cards. 2GB and 4GB SD cards
are recognised and can be used once this updated driver is installed.
However, some applications have 1GB or 2GB (upper limit for FAT16 partitions and maximum
filesize on FAT16) hardcoded as the upper limit and thus will miscalculate the amount of free space
on the larger SD card. Also, this driver is not loaded during emergency boot or the NAND loader so
you cannot use the larger SD card to flash your Zaurus or do NAND backup/restore.
Also, for 4GB SD cards, be very careful when ejecting the card. If you eject it while it is still
mounted or while it is being written to, then you might corrupt the integrity of the device and might
not be able to use it anymore. Since it is larger, it needs more time to flush the buffers and thus
this problem occurs less on smaller SD cards. If this occurs, however, even a fdisk or reformatting
of the SD card won't work (the smaller SD cards can be reformatted in some digital cameras but
not many cameras can recognise the larger SD cards either so you cannot use them to reformat a
broken SD card). To prevent this from happening in which case you need to claim a warranty
replacement so make sure you got proper warranty when you purchase large SD cards, you can
change the SD mount options to mount the SD card with the sync option and also increase the wait
delay from 1 second to 3 or 5 seconds during the SD unmount process.
To make the SD card mount with the sync option, modify /etc/sdcard/sd_mem_ctrl change the
following from
FATOPTS="-o noatime,umask=000,iocharset=utf8"
OPTS="-o noatime"
to the following
FATOPTS="-o noatime,umask=000,iocharset=utf8,sync"
OPTS="-o noatime,sync"
To increase the wait delay during the SD unmount, modify /etc/sdcontrol and change the following
from
sleep 1
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http://www.users.on.net/~hluc/myzaurus/
16/09/2007 12:23