Posted Nov 22, 2012 12:36 UTC (Thu) by dps (subscriber, #5725)
Parent article: Gentoo's udev fork
I have separate /usr and definitely want to keep it---anything that breaks that is a huge step in the wrong direction. While I can't mount / read only and I *can*, and do, mount /usr read only. /usr is actually on a different physical device too, so just merging with / would require a lot of work.
It would be nice to move further so that /var, /tmp, /home and very few other places are not read only but I appreciate that may be difficult. That said I currently do use systemd.
There are enough tools on / to mount /usr very early in the boot process, so there is no excuse for any init replacement not to cope with that configuration.