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Restoring and Updating the EVM Hard Disk Drive
A-8
A.5 Restoring and Updating the EVM Hard Disk Drive
This section describes how to restore and update all the files on the EVM
hard disk drive (HDD), including the Linux file system and the demos.
Using these restore procedures, you can return your board to a known
state if anything happens to the data on the EVM board’s HDD.
This section assumes that you have configured a host Linux workstation
with the software necessary to perform an NFS root mount with the EVM
as described in Section 4.3.7 and Section 4.3.8.
For further information about upgrading and flashing, see the TI DaVinci
Technology Developers Wiki at http://wiki.davincidsp.com.
For information about restoring the kernel and bootloaders, see the LSP
2.0 DaVinci Linux EVM Installation User’s Guide (SPRUG94).
For instructions on how to have the EVM boot Linux from flash using an
NFS file system, see Section A.3.3.
The EVM hard disk drive (HDD) can be restored from a target EVM HDD
partition or from the host Linux workstation file system. Either method will
achieve the same result.
Restoring the EVM HDD takes 10 to 15 minutes. The restore script must
uncompress 600 MB of compressed data and load it to the /dev/hda1
partition.
After the hard drive restore process has completed, make sure to restart
the EVM and configure U-Boot to root mount via the local HDD. The steps
for this type of boot are provided in Section A.3.1,
Booting from Flash
Using the EVM’s Hard Drive File System .
A.5.1 Restoring From Target EVM HDD Partition
Follow these steps to restore the HDD from the restore partition on the
HDD itself:
1) Make a directory for mounting the HDD restore partition:
EVM # mkdir /mnt/restore
2) Mount the HDD restore partition:
EVM # mount -t ext3 /dev/hda2 /mnt/restore
3) Set the Linux date variable to today's date. If the date is too far off,
the target file system installation generates a bunch of warnings.
EVM # date MMDDHHMMCCYY
For example, for 9:00 am on April 18th, 2006, enter 041809002006.