z
make zImage: Use this command in Linux (the commands in
this section was executed in Linux, except downloading
commands) to compile the kernel that would consequently
generate ‘kernel.img’ in the /$KernelPath/arch/arm/boot path.
Maintaining the root file system – Ramdisk
z The ADVANTECH had provided an existing ramdisk, named by
ramdisk.gz, therefore, the existing ramdisk only need to maintain
not create it.
z
gunzip ramdisk.gz: Use gunzip to uncompress it. The file
ramdisk would be then generated.
z
mount -o loop ramdisk /mnt/ramdisk: The contexts of the
file, ramdisk, would be mounted in /mnt/ramdisk directory.
z Maintain the files in /mnt/ramdisk, copy or delete the files in the
/mnt/ramdisk directory.
z
gunzip -9 ramdisk.gz: Compress the file ramdisk again. The
new ramdisk is generated by this command.
Downloading the kernel and ramdisk to PCM-7130
z Use blob bootloader to download the kernel and ramdisk to
PCM-7130.
z Connect the PCM-7130 com1 with PC, and then start a RS232
terminal program in PC, and power up the PCM-7130. The blob
message would show on RS232 terminal, then input the following
commands in RS232 terminal:
z
xdownload kernel: Use Xmodem protocol to send the
kernel.img into the RAM.
z
flash kernel: Write the RAM data into flash ROM.
z
xdownload ramdisk: Use Xmodem protocol to send the
ramsidk.gz into the RAM.
z
flash ramdisk: Write the RAM data into flash ROM.
z
boot: Finally, use boot command to booting the Linux kernel
following the above commands.
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