The live cd should ideally include 'mt' and the ide-tape module for system restores. CONFIG_BLK_DEV_IDETAPE =y also the install cd should have /dev/ht0 and /dev/nht0 entries as appropriate for udev.
We'll have IDE tape support on the LiveCD images (but not Minimal InstallCD)...
*** Bug 143910 has been marked as a duplicate of this bug. ***
The LiveCD images for 2006.1 include mt-st and CONFIG_BLK_DEV_IDETAPE=m