Debian Userland on top of existing Linux build?

[dieselnutjob]

I am looking at this https://wiki.debian.org/Arm64Port

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downloading arm64 debootstrap onto a debian box, unpacking and sending the files over to the quartz64 and running it there seems to be working.
Lets see if it completes....

Code:

root@quartz64:# debootstrap --arch=arm64 testing /root/debian-bookworm http://deb.debian.org/debian/ W: Cannot check Release signature; keyring file not available /usr/share/keyrings/debian-archive-keyring.gpg I: Retrieving InRelease I: Retrieving Packages I: Validating Packages I: Resolving dependencies of required packages... I: Resolving dependencies of base packages... I: Checking component main on http://deb.debian.org/debian... I: Retrieving libacl1 2.3.1-1 I: Validating libacl1 2.3.1-1 I: Retrieving adduser 3.118 I: Validating adduser 3.118 I: Retrieving libapparmor1 3.0.3-6 I: Validating libapparmor1 3.0.3-6 I: Retrieving apt 2.3.14 I: Validating apt 2.3.14 I: Retrieving apt-utils 2.3.14 W: Couldn't download package apt-utils (ver 2.3.14 arch arm64) at http://deb.debian.org/debian/pool/main/a/apt/apt-utils_2.3.14_arm64.deb I: Retrieving libapt-pkg6.0 2.3.14 I: Validating libapt-pkg6.0 2.3.14 I: Retrieving libargon2-1 0~20171227-0.2 W: Couldn't download package libargon2-1 (ver 0~20171227-0.2 arch arm64) at http://deb.debian.org/debian/pool/main/a/argon2/libargon2-1_0~20171227-0.2_arm64.deb I: Retrieving libattr1 1:2.5.1-1 I: Validating libattr1 1:2.5.1-1 I: Retrieving libaudit-common 1:3.0.6-1

I can't get it to work.
After all the downloads it fails to actually extract anything:-

Code:

I: Validating util-linux 2.36.1-8 I: Validating libxxhash0 0.8.0-2 I: Validating liblzma5 5.2.5-2 I: Validating xz-utils 5.2.5-2 I: Validating zlib1g 1:1.2.11.dfsg-2 I: Chosen extractor for .deb packages: ar I: Extracting libacl1...

does the partition have to be empty or something?