Leo Famulari <l...@famulari.name> skribis: > On Tue, Jan 12, 2016 at 01:39:02PM -0800, carl hansen wrote: >> Rather than trying the following, I thought, "Why not ask first?" >> >> Due to the sizes of various hard disks in my machine, I want to move /gnu >> to /directoryondifferentdisk/gnu >> and then do >> mount --bind /directoryondifferentdisk/gnu /gnu >> >> (I have already formed a superstition that >> ln -s /directoryondifferentdisk/gnu /gnu >> won't work) >> >> I see a vast collection of hard links in /gnu/store/.links... >> >> I forsee problems when copying /gnu, not reproducing hard links >> but reproducing the data. > > You could try moving the data with `rsync --hard-links`.
In fact you can also omit /gnu/store/.links when copying. Nothing is lost by doing so. This directory simply contains a hash-to-file mapping used by the deduplication mechanism. However, make sure do copy /var/guix in addition to /gnu/store! /var/guix/db/db.sqlite is the database containing meta-data for /gnu/store, so things will break badly if it’s missing or out-of-sync. HTH, Ludo’.
