CoreExpress Carrierboard Manual v1.0
3 Installation of Linux on SD card
3.1 Installation
Create a bootable Live USB drive that contains the
installation files. We recommend using
UNetbootin
(
http://unetbootin.sourceforge.net
).
We highly recommend to install Linux on the target
SD card inserted into a USB cardreader.
This is
because standard installation routines might not
recognize the SD card properly which might cause
errors during installation. Also, to succesfully boot
from SD card, some extra steps will be necessary that
can be performed the easiest way when the OS was
booted from the SD card in the card reader.
Connect the cardreader as well as the bootable USB
stick, switch on your CoreExpress computer and
press .
ESC
during startup. In the boot-menu, select
Hard Disk
and then your USB stick.
Follow the instructions of the installation routine of
your Linux distribution. Select the SD card in the
cardreader as target device. You should choose man-
ual partitioning. Create an ext3 partition for the oper-
ating system and do not create a swap partition. Pro-
ceed with the installation.
3.2 Enable Boot from SD card
After having installed Linux succesfully, leave
the SD card in the cardreader and boot your
new installation from the cardreader for the first
time.
In order to enable booting from SD
card, some modules have to be built into the
initramfs-image:
Add the following modules to
/etc/initramfs-tools/modules
(each in
one line):
•
sdhci
•
sdhci-pci
•
mmc_block
Save the file and run
update-initramfs -u
with root priveledges.
Make
sure
that
the
root-partition
in
/boot/grub/menu.lst
is set correctly.
The
SD card should appear either as
/dev/mmcblk0p1
or with its UUID.
3.3 Further Notes
In case you installed from a USB stick and auto-
mounting devices throws errors, comment out a line
in
/etc/fstab
, that looks like this:
/dev/sdb1 /media/cdrom0 udf,iso9660
user,noauto,exec 0 0
Ascending Technologies GmbH
- 8 -
www.asctec.de
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