Catalyst 1.1.2 fails to create /etc/mtab when making a livecd Reproducible: Always Steps to Reproduce:
I'm sorry, but I was under the impression that /etc/mtab is generated by the system as things were mounted. Could you be more specific on what you think the problem is?
/etc/mtab doesn't exist in livecd iso
Alright... there's no package that owns /etc/mtab. http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#book_part1_chap10 Under 10.b. there's an entry that tells you to copy /proc/mounts to /etc/mtab. The reason for this is because there is no mtab in the stage, it is created by the system at boot time. Most likely, this is just a symptom of another problem. Is it still occurring with newer catalyst versions? Sorry that I have been so unresponsive on this, but we've been working on a release and I've been doing a lot of development towards that end.
Problem is present in catalyst-1.1.8. /etc/mtab is never created during boot. We get "can't open /etc/mtab: no such file or directory" errors. Adding a catalyst fsscript with 'touch /etc/mtab' works. Also see bug #88281.
catalyst 1.1.10 is out as well as genkernel 3.2.0. This should be fixed with the new version of genkernel as it uses an initramfs instead of an initrd. Reopen if this is still an issue with catalyst 1.1.10 or new with genkernel- 3.2.0 or newer.