= Useful commands =The following useful commands are not installed by default:* which* man* scp* ssh* make To install issue the command: yum -y install which man openssh-clients make = Advanced === Using the onboard NAND flash as a swap drive ==Note that many devices are configured to fallback to booting from NAND flash if no USB/SD card is found. This makes it almost impossible to brick your device. ''If you use the NAND flash as swap you will lose this ability.''  cfdisk /dev/mtdblock2* Create a "Linux swap / Solaris" partition that takes all the space: # remove any existing partitions, if any# create a new primary partition# select Type option, enter "82"# select Write option# select Quit option mkswap /dev/mtdblock2 echo "/dev/mtdblock2 swap swap defaults 0 0" >> /etc/fstab swapon -a == Copy a root filesystem from one disk to another ==

{{Code| # /dev/sda1 is the target filesystem; must have an empty filesystem on it mount /dev/sda1 /mnt mkdir /mnt2 # /dev/sdb2 is the source filesystem mount /dev/sdb1 /mnt2 cd /mnt2 cp -ar * /mnt}}