구차니의 잡동사니 모음

 The problem with YAFFS, T'so explained in his blog entry, is that it is single-threaded and would likely "have been a bottleneck on dual-core systems." Concurrency will be important on next-generation Android devices that use multi-core ARM processors.

Because your old disc was partitioned with a old utility, such as the Linux fdisk, that uselessly implemented track-alignment using the entirely fake disc geometry that you see reported, and your new disc has been or is being partitioned by a newer utility that (by default) aligns to 1MiB boundaries instead. 

In other words, the LBA sector number 63 corresponds to cylinder 0, head 1, sector 1 in the CHS format, which is the first sector you can use in the MBR format. However, the number 63 is not divisible by 8, which causes a problem with 4K drives, so some modern tools starts the first partition at 2048 which also provides future GPT compatibility. – billc.cn Oct 31 '11 at 23:48 

$ hostname -i

127.0.0.1

$ hostname -I

192.168.10.11 

-i, --ip-address

Display the IP address(es) of the host. Note that this works only if the host name can be resolved. Avoid using this option; use hostname --all-ip-addresses instead. 

-I, --all-ip-addresses

Display all network addresses of the host. This option enumerates all configured addresses on all network interfaces. The loopback interface and IPv6 link-local addresses are omitted. Contrary to option -i, this option does not depend on name resolution. Do not make any assumptions about the order of the output.

$ sudo vi /etc/X11/xorg.conf

Section "ServerFlags"

    Option "DontVTSwitch" "true"

EndSection