install: fix addVolume perm issue for some users

As reported in #5198, volume creation can fail with a permission error
for some macOS users (probably secondary user accounts?) Sudo appears
to be sufficient to avoid this.

While I'm here, I also updated the sudo invocation added in 079bde2ae
to use the _sudo explanation wrapper.
This commit is contained in:
Travis A. Everett 2021-08-31 22:33:52 -05:00
parent 50a35860ee
commit bf2ee3c565

View file

@ -715,7 +715,8 @@ create_volume() {
# 6) getting special w/ awk may be fragile, but doing it to:
# - save time over running slow diskutil commands
# - skirt risk we grab wrong volume if multiple match
/usr/sbin/diskutil apfs addVolume "$NIX_VOLUME_USE_DISK" "$NIX_VOLUME_FS" "$NIX_VOLUME_LABEL" -nomount | /usr/bin/awk '/Created new APFS Volume/ {print $5}'
_sudo "to create a new APFS volume '$NIX_VOLUME_LABEL' on $NIX_VOLUME_USE_DISK" \
/usr/sbin/diskutil apfs addVolume "$NIX_VOLUME_USE_DISK" "$NIX_VOLUME_FS" "$NIX_VOLUME_LABEL" -nomount | /usr/bin/awk '/Created new APFS Volume/ {print $5}'
}
volume_uuid_from_special() {
@ -738,7 +739,6 @@ await_volume() {
setup_volume() {
local use_special use_uuid profile_packages
task "Creating a Nix volume" >&2
# DOING: I'm tempted to wrap this call in a grep to get the new disk special without doing anything too complex, but this sudo wrapper *is* a little complex, so it'll be a PITA unless maybe we can skip sudo on this. Let's just try it without.
use_special="${NIX_VOLUME_USE_SPECIAL:-$(create_volume)}"
@ -760,7 +760,8 @@ setup_volume() {
await_volume
if [ "$(/usr/sbin/diskutil info -plist "$NIX_ROOT" | xmllint --xpath "(/plist/dict/key[text()='GlobalPermissionsEnabled'])/following-sibling::*[1]" -)" = "<false/>" ]; then
sudo /usr/sbin/diskutil enableOwnership "$NIX_ROOT"
_sudo "to set enableOwnership (enabling users to own files)" \
/usr/sbin/diskutil enableOwnership "$NIX_ROOT"
fi
# TODO: below is a vague kludge for now; I just don't know