Mounting the necessary filesystems - dpopchev/howto-quick-setup-gentoo GitHub Wiki

Handbook

/proc

• Gentoo Live CD

  mount --types proc /proc /mnt/gentoo/proc 
  

• non Gentoo medium

  mount -o bind /proc /mnt/gentoo/proc
  

/sys

mount --rbind /sys /mnt/gentoo/sys 
mount --make-rslave /mnt/gentoo/sys 

/dev

mount --rbind /dev /mnt/gentoo/dev 
mount --make-rslave /mnt/gentoo/dev 

/dev/shm for non Gentoo Live CD

test -L /dev/shm && rm /dev/shm && mkdir /dev/shm 
mount --types tmpfs --options nosuid,nodev,noexec shm /dev/shm 
chmod 1777 /dev/shm

/dev/shm for Ubuntu live cd note here regarding Python bug for broken sem_open()

mount --rbind /run/shm /mnt/gentoo/run/shm