I had the same problem installing Debian 8 'Jessie' on a SheevaPlug.
I solved it temporarily by doing the following:
- In u-boot:
setenv machid 00000692
saveenv
- Then install normally. The 'make the system bootable' phase will fail because flash-kernel fails:
---- /var/log/installer/syslog:
May 16 13:47:28 in-target: Setting up u-boot-tools (2014.10+dfsg1-5) ...^M
4-kirkwood
May 16 13:47:46 in-target: Unsupported platform.
May 16 13:47:46 flash-kernel-installer: error: flash-kernel failed
May 16 13:47:46 main-menu[170]: WARNING **: Configuring 'flash-kernel-installer' failed with error code 1
May 16 13:47:46 main-menu[170]: WARNING **: Menu item 'flash-kernel-installer' failed.
----
- Then select 'execute a shell' and write: