135 lines
3.1 KiB
Bash
135 lines
3.1 KiB
Bash
#! @shell@
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export PATH=/empty
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for i in @path@; do PATH=$PATH:$i/bin:$i/sbin; done
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# Needed by some programs.
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ln -sfn /proc/self/fd /dev/fd
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# Set up the statically computed bits of /etc.
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staticEtc=/etc/static
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rm -f $staticEtc
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ln -s @etc@/etc $staticEtc
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for i in $(cd $staticEtc && find * -type l); do
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mkdir -p /etc/$(dirname $i)
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rm -f /etc/$i
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ln -s $staticEtc/$i /etc/$i
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done
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# Remove dangling symlinks that point to /etc/static. These are
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# configuration files that existed in a previous configuration but not
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# in the current one.
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for i in $(find /etc/ -type l); do
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target=$(readlink "$i")
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if test "${target:0:${#staticEtc}}" = "$staticEtc" -a ! -e "$i"; then
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rm -f "$i"
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fi
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done
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# Various log directories.
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mkdir -m 0755 -p /var/run
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echo -n > /var/run/utmp # must exist
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chmod 664 /var/run/utmp
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mkdir -m 0755 -p /var/log
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# If there is no password file yet, create a root account with an
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# empty password.
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if ! test -e /etc/passwd; then
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rootHome=/root
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touch /etc/passwd; chmod 0644 /etc/passwd
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touch /etc/group; chmod 0644 /etc/group
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touch /etc/shadow; chmod 0600 /etc/shadow
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# Can't use useradd, since it complain that it doesn't know us
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# (bootstrap problem!).
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echo "root:x:0:0:System administrator:$rootHome:@shell@" >> /etc/passwd
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echo "root::::::::" >> /etc/shadow
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groupadd -g 0 root
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echo | passwd --stdin root
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fi
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# Some more required accounts/groups.
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if ! getent group nogroup > /dev/null; then
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groupadd -g 65534 nogroup
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fi
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# Set up Nix accounts.
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if test -z "@readOnlyRoot@"; then
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if ! getent group nixbld > /dev/null; then
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groupadd -g 30000 nixbld
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fi
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for i in $(seq 1 10); do
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account=nixbld$i
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if ! getent passwd $account > /dev/null; then
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useradd -u $((i + 30000)) -g nogroup -G nixbld \
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-d /var/empty -s /noshell \
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-c "Nix build user $i" $account
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fi
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done
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mkdir -p /nix/etc/nix
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cat > /nix/etc/nix/nix.conf <<EOF
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build-users-group = nixbld
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EOF
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chown root.nixbld /nix/store
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chmod 1775 /nix/store
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fi
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# Additional path for the interactive shell.
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PATH=@wrapperDir@:@fullPath@/bin:@fullPath@/sbin
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cat > /etc/profile <<EOF
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export PATH=$PATH
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export MODULE_DIR=@kernel@/lib/modules
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export NIX_CONF_DIR=/nix/etc/nix
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export PAGER=less
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if test "\$USER" != root; then
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export NIX_REMOTE=daemon
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fi
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source $(dirname $(readlink -f $(type -tp nix-env)))/../etc/profile.d/nix.sh
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alias ll="ls -l"
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if test -f /etc/profile.local; then
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source /etc/profile.local
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fi
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EOF
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# Nix initialisation.
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mkdir -m 0755 -p /nix/var/nix/db
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mkdir -m 0755 -p /nix/var/nix/gcroots
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mkdir -m 0755 -p /nix/var/nix/temproots
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ln -sf /nix/var/nix/profiles /nix/var/nix/gcroots/
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# Make a few setuid programs work.
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wrapperDir=@wrapperDir@
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if test -d $wrapperDir; then rm -f $wrapperDir/*; fi
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mkdir -p $wrapperDir
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for i in passwd su; do
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program=$(type -tp $i)
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cp $(type -tp setuid-wrapper) $wrapperDir/$i
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echo -n $program > $wrapperDir/$i.real
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chown root.root $wrapperDir/$i
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chmod 4755 $wrapperDir/$i
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done
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# Set the host name.
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hostname @hostName@
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