zjhui

1、在openwrt上安装block-mount，挂载硬盘时需要它
opkg update
opkg install block-mount

2、挂载硬盘
mount /dev/sda2 /mnt

3、把/目录下的文件迁移到U盘,pivot-root方式，适用于Barrier Breaker（trunk）版本
mkdir -p /tmp/cproot
mount --bind / /tmp/cproot

zjhui

>>> Installing (1 of 1) sys-apps/portage-2.2.01.20837
 * checking 490 files for package collisions
 * This package will overwrite one or more files that may belong to other
 * packages (see list below). You can use a command such as `portageq
 * owners / <filename>` to identify the installed package that owns a
 * file. If portageq reports that only one package owns a file then do
 * NOT file a bug report. A bug report is only useful if it identifies at
 * least two or more packages that are known to install the same file(s).
 * If a collision occurs and you can not explain where the file came from
 * then you should simply ignore the collision since there is not enough

zjhui

make[6]: *** [plugin-container] Error 1
make[6]: Leaving directory `/var/tmp/portage/www-client/firefox-10.0.5/work/mozilla-esr10/obj-i686-pc-linux-gnu/ipc/app'
make[5]: *** [tools] Error 2
make[5]: Leaving directory `/var/tmp/portage/www-client/firefox-10.0.5/work/mozilla-esr10/obj-i686-pc-linux-gnu/ipc'
make[4]: *** [tools_tier_platform] Error 2
make[4]: Leaving directory `/var/tmp/portage/www-client/firefox-10.0.5/work/mozilla-esr10/obj-i686-pc-linux-gnu'
make[3]: *** [tier_platform] Error 2
make[3]: Leaving directory `/var/tmp/portage/www-client/firefox-10.0.5/work/mozilla-esr10/obj-i686-pc-linux-gnu'
make[2]: *** [default] Error 2
make[2]: Leaving directory `/var/tmp/portage/www-client/firefox-10.0.5/work/mozilla-esr10/obj-i686-pc-linux-gnu'

zjhui

gentoo package.accept_keywords # emerge -av sys-boot/grub:2

 * IMPORTANT: 3 news items need reading for repository 'gentoo'.
 * Use eselect news to read news items.


 * IMPORTANT: config file '/etc/portage/package.accept_keywords/package.keywords.xen-sources' needs updating.
 * See the CONFIGURATION FILES section of the emerge
 * man page to learn how to update config files.