commit 9145f833cc4050876fd8d0b93a37ca5114ea381c · pyrox.dev/nixpkgs

+29
nixos/modules/installer/tools/nixos-enter.sh
···

       60
       60
        
       mount --rbind /dev "$mountPoint/dev"

     

       61
       61
        
       mount --rbind /sys "$mountPoint/sys"

     

       62
       62
        
       

     

       63
       63
       +
       # modified from https://github.com/archlinux/arch-install-scripts/blob/bb04ab435a5a89cd5e5ee821783477bc80db797f/arch-chroot.in#L26-L52

     

       64
       64
       +
       chroot_add_resolv_conf() {

     

       65
       65
       +
           local chrootdir=$1 resolv_conf=$1/etc/resolv.conf

     

       66
       66
       +
       

     

       67
       67
       +
           [[ -e /etc/resolv.conf ]] || return 0

     

       68
       68
       +
       

     

       69
       69
       +
           # Handle resolv.conf as a symlink to somewhere else.

     

       70
       70
       +
           if [[ -L $chrootdir/etc/resolv.conf ]]; then

     

       71
       71
       +
             # readlink(1) should always give us *something* since we know at this point

     

       72
       72
       +
             # it's a symlink. For simplicity, ignore the case of nested symlinks.

     

       73
       73
       +
             # We also ignore the possibility if `../`s escaping the root.

     

       74
       74
       +
             resolv_conf=$(readlink "$chrootdir/etc/resolv.conf")

     

       75
       75
       +
             if [[ $resolv_conf = /* ]]; then

     

       76
       76
       +
               resolv_conf=$chrootdir$resolv_conf

     

       77
       77
       +
             else

     

       78
       78
       +
               resolv_conf=$chrootdir/etc/$resolv_conf

     

       79
       79
       +
             fi

     

       80
       80
       +
           fi

     

       81
       81
       +
       

     

       82
       82
       +
           # ensure file exists to bind mount over

     

       83
       83
       +
           if [[ ! -f $resolv_conf ]]; then

     

       84
       84
       +
             install -Dm644 /dev/null "$resolv_conf" || return 1

     

       85
       85
       +
           fi

     

       86
       86
       +
       

     

       87
       87
       +
           mount --bind /etc/resolv.conf "$resolv_conf"

     

       88
       88
       +
       }

     

       89
       89
       +
       

     

       90
       90
       +
       chroot_add_resolv_conf "$mountPoint" || print "ERROR: failed to set up resolv.conf"

     

       91
       91
       +
       

     

       63
       92
        
       (

     

       64
       93
        
           # If silent, write both stdout and stderr of activation script to /dev/null

     

       65
       94
        
           # otherwise, write both streams to stderr of this process