machine: hetzner: Refine installation with bind mount in rescue.

This reverts commit 3e1befe1d8e ("machine: hetzner: Fix deployment."),
adopting a simpler/correct alternative.

* gnu/machine/hetzner.scm (hetzner-machine-rescue-install-os): Bind mount
/gnu, not /gnu/store.

Change-Id: I09ffb4db8a39b4bcd5e7645aee63427c6bc969a0
Suggested-by: Rutherther <rutherther@ditigal.xyz>

1 files changed, 3 insertions, 11 deletions

diff --git a/gnu/machine/hetzner.scm b/gnu/machine/hetzner.scm
index 4640e2c6193..8795ff8e5ea 100644
--- a/gnu/machine/hetzner.scm
+++ b/gnu/machine/hetzner.scm
@@ -585,19 +585,11 @@ chmod 600 /mnt/root/.ssh/authorized_keys
 
 # Small instance don't have much disk space.  Bind mount the store of the
 # rescue system to the tmp directory of the new Guix system.
-mkdir -p /mnt/tmp/gnu/store
-mkdir -p /gnu/store
-mount --bind /mnt/tmp/gnu/store /gnu/store
+mkdir -p /mnt/tmp/gnu
+mkdir -p /gnu
+mount --bind /mnt/tmp/gnu /gnu
 
 wget -O /tmp/guix-install.sh https://guix.gnu.org/guix-install.sh
-
-# Modify the install script to point the systemd unit of the /gnu/store
-# mountpoint to the same /mnt/tmp/gnu/store which was introduced above.
-store_fix=\"sed -i 's#Where=/gnu/store#Where=/mnt/tmp/gnu/store#'
- ~~root/.config/guix/current/lib/systemd/system/gnu-store.mount\"
-sed -i \"s@install_unit gnu-store.mount\"\\
-\"@$(printf \"%q \" $store_fix)\\ninstall_unit gnu-store.mount@\" /tmp/guix-install.sh
-
 chmod +x /tmp/guix-install.sh
 set +o pipefail # avoid hangup on 'yes' killing this script
 yes '' | /tmp/guix-install.sh