diff options
author | Artturin <Artturin@artturin.com> | 2021-09-13 20:56:03 +0300 |
---|---|---|
committer | Artturin <Artturin@artturin.com> | 2021-10-30 18:46:14 +0300 |
commit | 9145f833cc4050876fd8d0b93a37ca5114ea381c (patch) | |
tree | cab627d53d416202fc28cb0a6ec3ee44a6951eb2 /nixos/modules/installer | |
parent | 23f71e9427c7cd2a6f87a167b4f6dc170b4431df (diff) | |
download | nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.tar nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.tar.gz nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.tar.bz2 nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.tar.lz nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.tar.xz nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.tar.zst nixpkgs-9145f833cc4050876fd8d0b93a37ca5114ea381c.zip |
nixos/nixos-enter: bind mount /etc/resolv.conf to chroot
Diffstat (limited to 'nixos/modules/installer')
-rw-r--r-- | nixos/modules/installer/tools/nixos-enter.sh | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/nixos/modules/installer/tools/nixos-enter.sh b/nixos/modules/installer/tools/nixos-enter.sh index e57296b38e4..00883205e8b 100644 --- a/nixos/modules/installer/tools/nixos-enter.sh +++ b/nixos/modules/installer/tools/nixos-enter.sh @@ -60,6 +60,35 @@ chmod 0755 "$mountPoint/dev" "$mountPoint/sys" mount --rbind /dev "$mountPoint/dev" mount --rbind /sys "$mountPoint/sys" +# modified from https://github.com/archlinux/arch-install-scripts/blob/bb04ab435a5a89cd5e5ee821783477bc80db797f/arch-chroot.in#L26-L52 +chroot_add_resolv_conf() { + local chrootdir=$1 resolv_conf=$1/etc/resolv.conf + + [[ -e /etc/resolv.conf ]] || return 0 + + # Handle resolv.conf as a symlink to somewhere else. + if [[ -L $chrootdir/etc/resolv.conf ]]; then + # readlink(1) should always give us *something* since we know at this point + # it's a symlink. For simplicity, ignore the case of nested symlinks. + # We also ignore the possibility if `../`s escaping the root. + resolv_conf=$(readlink "$chrootdir/etc/resolv.conf") + if [[ $resolv_conf = /* ]]; then + resolv_conf=$chrootdir$resolv_conf + else + resolv_conf=$chrootdir/etc/$resolv_conf + fi + fi + + # ensure file exists to bind mount over + if [[ ! -f $resolv_conf ]]; then + install -Dm644 /dev/null "$resolv_conf" || return 1 + fi + + mount --bind /etc/resolv.conf "$resolv_conf" +} + +chroot_add_resolv_conf "$mountPoint" || print "ERROR: failed to set up resolv.conf" + ( # If silent, write both stdout and stderr of activation script to /dev/null # otherwise, write both streams to stderr of this process |