9root file system boot from s-ata, Drive – Kontron KTAM3874-pITX User Manual

Page 35

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KTD-S0057-I

Page 31

Root File System Boot from S-ATA® Drive


KTAM3874/pITX Software Guide


Thereafter type the following line

# sudo dd if=/boot/uImage of=/dev/mtdblock4

4626+1

records

in

4626+1

records

out

... bytes (... MB) copied, ... s, 46.0 kB/s

9

Root File System Boot from S-ATA

®

Drive

The S-ATA

®

part (mSATA

®

or standard S-ATA

®

connector) offers the fastest board interface. This is the only

way of achieving transfer rates about 150 MB/s, normally only with SSD drives. The kernel does not
automatically mount the drive therefore you have to modify the configuration file

etc/fstab

(per default

this file is empty). The example uses a freely chosen drive identifier (sda1) and target directory.

# UNCONFIGURED FSTAB FOR BASE SYSTEM

/dev/sda1 /media/sata ext4 defaults 0 1

After update you should create the new directory

/media/sata

. But this method has a serious disadvantage:

if you remove the drive the kernel stops with an error message.
Furthermore the U-Boot environment needs an additional modification:

spiboot =setenv root_bootargs

root=/dev/sda1

rw rootwait;run setbootarg;sf probe 0 && sf read ${loadaddr}

0xE2000 0x31E000 && bootm ${loadaddr}


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