I have no bootable Mac CDs, except my Tiger one. I don't even know what a bootable HFS CD consists of. My IIci barely handles CDs in common/ISO format - it's very flakey, and needs the third-party CD toolkit to work half-well.
I installed Sys 7(.5.x) on the IIci from floppy IMG via FTP.

Are there Iomega tools to make a Mac-bootable 100MB disk? I do have an original SCSI external Zip drive (the one that switches between ID 5/6, the real SCSI one) and a Bernoulli 150.

Click to expand...

If the ZIP disk is inserted at bootup, the Mac should 'see' it without and special drivers. So plug in ZIP drive, insert disk, then boot up from a floppy - once booted up you can either copy the system from the floppy to the ZIP, or do a full install if ou have the complete set of install floppies. Once a system is on the ZIP disk, in the absense of any other suitable SCSI boot disks, you should be able to boot up the Mac

note: you don't need iomega disk tools or drivers until such time as you have a working internal boot disk. All it does is enable you to boot up without a disk inserted in the ZIP drive, as i said - if the disk is inserted before boot then it *should* mount with no problems at all.