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I'm not entirely sure what you're asking here. Yes, top shows CPU usage as a percentage of a single CPU by default. That's why you can have percentages that are >100. On a system with 4 cores, you can see up to 400% CPU usage. You can change this behavior by pressing I (that's Shift + i and toggles "Irix mode") while top is running. That will cause it to ...


For Debian 7 and earlier, the easiest option is to put your code in /etc/rc.local. This runs at the very end of the boot sequence, just before the login screen is displayed when you boot into console mode, or just before X is started otherwise. Until this script exits, nothing else happens, so if you reboot the system at the end, you may not see a login ...


I didn't find the cause of the slow booting with GRUB 2. I ended up using EXTLINUX instead, which is compact and fast, and better-suited if you don't need all the fancy GRUB 2 things. http://www.syslinux.org/wiki/index.php/EXTLINUX


As "wmill' rightly commented in his answer that most tftp servers will write to file only if it exists. In my case also it was the same problem. tftpput from u-boot works fine. I installed tftpd-hpa and configured it as follows to create a file. edit /etc/default/tftpd-hpa as follows, # /etc/default/tftpd-hpa TFTP_USERNAME="root" ...


You can refer to the official page: https://www.kernel.org/pub/linux/libs/uclibc/Glibc_vs_uClibc_Differences.txt


Edit: I just noticed that your save address and size are 0. I have not tried tftpput on u-boot. From the command help it appears address and size must be supplied by the command line. I would try that. I don't know where RAM is on your platform so I can't give a valid example command line but it should look something like: tftpput 80000000 10 ---- Old ...


Yes, the reg<0xxxx 0xxxx> stands for reg<offset length>. offset is the base address of the device and length will determine the range of address of the given device.

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