gentoo stages #    export LOOP_IMAGE="/media/WDGR/live64_xfce.img"
gentoo stages #    export BUILDROOT="/mnt/gentoo"
gentoo stages #    mount $LOOP_IMAGE $BUILDROOT
gentoo stages #     mount -t proc none $BUILDROOT/proc
gentoo stages #     mount --rbind /sys $BUILDROOT/sys
gentoo stages #     mount --rbind /dev $BUILDROOT/dev
gentoo stages #     chroot $BUILDROOT /bin/bash
gentoo / # env-update
>>> Regenerating /etc/ld.so.cache...
gentoo / # exit
exit
gentoo stages # umount $BUILDROOT/proc
gentoo stages # umount $BUILDROOT/sys
umount: /mnt/gentoo/sys: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
gentoo stages # mount | grep sys
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=23,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/debug type cgroup (rw,nosuid,nodev,noexec,relatime,debug)
sysfs on /mnt/gentoo/sys type sysfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /mnt/gentoo/sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /mnt/gentoo/sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /mnt/gentoo/sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /mnt/gentoo/sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /mnt/gentoo/sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /mnt/gentoo/sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /mnt/gentoo/sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /mnt/gentoo/sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /mnt/gentoo/sys/fs/cgroup/debug type cgroup (rw,nosuid,nodev,noexec,relatime,debug)
gentoo stages # umount -l $BUILDROOT/sys
gentoo stages # umount $BUILDROOT/dev
umount: /mnt/gentoo/dev: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
gentoo stages # mount | grep dev
udev on /dev type devtmpfs (rw,nosuid,relatime,size=10240k,nr_inodes=505901,mode=755)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
/dev/sda5 on / type ext4 (rw,noatime,data=ordered)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
/dev/sdb1 on /media/ST4 type ext4 (rw,noatime,data=ordered)
/dev/sda6 on /home type ext4 (rw,noatime,data=ordered)
/dev/sdc1 on /media/WDGR type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
tmpfs on /run/user/1003 type tmpfs (rw,nosuid,nodev,relatime,size=405200k,mode=700,uid=1003,gid=100)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620)
udev on /mnt/gentoo/dev type devtmpfs (rw,nosuid,relatime,size=10240k,nr_inodes=505901,mode=755)
tmpfs on /mnt/gentoo/dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /mnt/gentoo/dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620)
gentoo stages # umount -l $BUILDROOT/dev
gentoo stages # umount $LOOP_IMAGE $BUILDROOT
umount: /mnt/gentoo: not mounted
gentoo stages # cat /proc/self/mountinfo
13 17 0:3 / /proc rw,relatime shared:8 - proc proc rw
14 17 0:5 / /dev rw,nosuid,relatime shared:2 - devtmpfs udev rw,size=10240k,nr_inodes=505901,mode=755
16 17 0:13 / /sys rw,nosuid,nodev,noexec,relatime shared:5 - sysfs sysfs rw
17 0 8:5 / / rw,noatime shared:1 - ext4 /dev/sda5 rw,data=ordered
19 17 0:15 / /run rw,nosuid,nodev shared:9 - tmpfs tmpfs rw,mode=755
29 13 0:25 / /proc/sys/fs/binfmt_misc rw,relatime shared:17 - autofs systemd-1 rw,fd=23,pgrp=1,timeout=300,minproto=5,maxproto=5,direct
31 17 0:26 / /tmp rw shared:19 - tmpfs tmpfs rw
57 17 0:29 / /root/.thumbnails rw,noatime shared:22 - tmpfs tmpfs rw
59 17 8:17 / /media/ST4 rw,noatime shared:23 - ext4 /dev/sdb1 rw,data=ordered
61 17 8:6 / /home rw,noatime shared:24 - ext4 /dev/sda6 rw,data=ordered
63 61 0:30 / /home/galym/.thumbnails rw,noatime shared:25 - tmpfs tmpfs rw
65 17 8:33 / /media/WDGR rw,nosuid,nodev,relatime shared:26 - fuseblk /dev/sdc1 rw,user_id=0,group_id=0,allow_other,blksize=4096
103 19 0:32 / /run/user/1003 rw,nosuid,nodev,relatime shared:62 - tmpfs tmpfs rw,size=405200k,mode=700,uid=1003,gid=100