On 02/09/2013 01:02 PM, Jim Klimov wrote: > On 2013-02-09 12:44, Sašo Kiselkov wrote: >> On 02/09/2013 02:52 AM, Jim Klimov wrote: >>> 1) created dedicated dataset, i.e. rpool/export/home/root >>> and transferred all contents of /root into it >>> >>> 2) created /root/.profile with this text: >>> >>> # === /root/.profile >>> if [ x"$_SLASH_PROFILE" = x ]; then >>> _SLASH_PROFILE=Y >>> export _SLASH_PROFILE >>> if [ -d /export/home/root ]; then >>> HOME=/export/home/root >>> cd $HOME >>> export HOME >>> /bin/test -s ./.profile && . ./.profile >>> fi >>> unset _SLASH_PROFILE >>> fi >>> # === /root/.profile > >>> Thanks, and hope this trick helps others, >> >> What's with all the black magic? >> >> Why couldn't you simply do: >> >> # mv /root /root-old >> # zfs create -o mountpoint=/root rpool/export/home/root >> # chmod 700 /root >> # /usr/gnu/bin/cp -ar /root2/* /root/ > > In fact, no I could not (and you're inconsistent with root2 > and root-old :) ).
Meh. > Here's why: there are cases where the OS > does use the nominal home for actual work - such as repairs > and other single-user works, as well as cases where the home > is on another pool and can't be mounted. Worst thing is you won't get your precious home directory. > As a result, the OS > will work with /root and place some files there, rendering > it an unviable mountpoint for ZFS auto-mounter for the actual > relocated home - at least as long as there is no analog for > "mount -O" enforcement via dataset properties to do overlay > mounts over non-empty directories. And failure of dataset > automounter leads to single-user mode and lack of service. # umount /root # chmod 500 /root # zfs mount rpool/export/home/root > Workarounds are still possible, such as setting rootfs's /root > directory immutable, Bingo. > but I am not sure it would work under > Solaris - (almost certainly) not in sol10u8. Couldn't be bothered to test (my S10 boxes are running in production). > Also, you might > indeed want some files to be in the "repair-time" root home, > such as some SSH keys Why exactly would I want ssh keys in single user? > or your bash aliases and history of repair commands, etc. # mkdir /tmp/whatever # zfs set mountpoint=/tmp/whatever rpool/export/home/root # zfs mount rpool/export/home/root If filesystems on your rpool are unmountable (and yet the system booted), then you have a whole different heap of problems than "I want my bash history". And locating /root on anything other than rpool is a "Bad Idea(tm)". Cheers, -- Saso _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
