When I try to install gentoo amd64 in a subvolume of a btrfs volume alongside with my Archlinux i686 already on another subvolume using minimal installation CD-20120517 on an usb flash disk, after I mount the volume on /mnt, the live system seems to fail: I can't run any command(ls for example). It says /bin/***:command not found. When I then try to cd into /bin, bash reports: /bin:No such file or directory. And even reboot command is missing, I have to cut the power off. I tried many times, checksum, changed the usb interface, re-dd the usb flash disk and get the same result. Finally I used the x86-64 live CD of Archlinux and finished the installation :) . Reproducible: Always Steps to Reproduce: 1.# mount /dev/sda10 /mnt (It doesn't matter if I use -o subvol=*** or just the root volume) 2.the system fails Actual Results: Can't use any command and many directories are missing like /bin . Expected Results: Nothing should happen...... It should just mount the volume. The btrfs filesystem is lzo compressed, but first the kernel in the liveCD should support it(3.2.*, Arch's 3.0 is doing fine), then only the data stored is compressed, I am not forcing gentoo to read and write any compressed data, fianlly it shouldn't corrupt the whole live system. The filesystem itself is not corrupted though.
The minimal CD does not have explicit support for brtfs yet. When it becomes (more?) stable, we'll reconsider it. If you want to try brtfs support, please test the admin-cd - bug 352152
