FC3000
解決"Release signed by unknown key (key id 6FB2A1C265FFB764)"問題
參考資訊：
1. debootstrap-release-signed-by-unknown-key
問題：
$ sudo debootstrap --arch armel --foreign wheezy wheezy http://archive.debian.org/debian/
I: Retrieving InRelease
I: Retrieving Release
I: Retrieving Release.gpg
I: Checking Release signature
E: Release signed by unknown key (key id 6FB2A1C265FFB764)
The specified keyring /usr/share/keyrings/debian-archive-keyring.gpg may be incorrect or out of date.
You can find the latest Debian release key at https://ftp-master.debian.org/keys.html
解法：
$ wget https://ftp-master.debian.org/keys/release-7.asc -qO- | gpg --import --no-default-keyring --keyring ./debian-release-7.gpg $ sudo debootstrap --keyring=./debian-release-7.gpg --arch armel --foreign wheezy wheezy http://archive.debian.org/debian/