mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-25 03:17:13 +00:00
8bc970bbc7
Uboot is copied into `/boot` in the installation process. The boot entries are created by calling the `generic-extlinux-compatible` builder.
127 lines
3.5 KiB
Bash
127 lines
3.5 KiB
Bash
#! @bash@/bin/sh -e
|
|
|
|
shopt -s nullglob
|
|
|
|
export PATH=/empty
|
|
for i in @path@; do PATH=$PATH:$i/bin; done
|
|
|
|
default=$1
|
|
if test -z "$1"; then
|
|
echo "Syntax: builder.sh <DEFAULT-CONFIG>"
|
|
exit 1
|
|
fi
|
|
|
|
echo "updating the boot generations directory..."
|
|
|
|
mkdir -p /boot/old
|
|
|
|
# Convert a path to a file in the Nix store such as
|
|
# /nix/store/<hash>-<name>/file to <hash>-<name>-<file>.
|
|
cleanName() {
|
|
local path="$1"
|
|
echo "$path" | sed 's|^/nix/store/||' | sed 's|/|-|g'
|
|
}
|
|
|
|
# Copy a file from the Nix store to /boot/kernels.
|
|
declare -A filesCopied
|
|
|
|
copyToKernelsDir() {
|
|
local src="$1"
|
|
local dst="/boot/old/$(cleanName $src)"
|
|
# Don't copy the file if $dst already exists. This means that we
|
|
# have to create $dst atomically to prevent partially copied
|
|
# kernels or initrd if this script is ever interrupted.
|
|
if ! test -e $dst; then
|
|
local dstTmp=$dst.tmp.$$
|
|
cp $src $dstTmp
|
|
mv $dstTmp $dst
|
|
fi
|
|
filesCopied[$dst]=1
|
|
result=$dst
|
|
}
|
|
|
|
copyForced() {
|
|
local src="$1"
|
|
local dst="$2"
|
|
cp $src $dst.tmp
|
|
mv $dst.tmp $dst
|
|
}
|
|
|
|
outdir=/boot/old
|
|
mkdir -p $outdir || true
|
|
|
|
# Copy its kernel and initrd to /boot/kernels.
|
|
addEntry() {
|
|
local path="$1"
|
|
local generation="$2"
|
|
|
|
if ! test -e $path/kernel -a -e $path/initrd; then
|
|
return
|
|
fi
|
|
|
|
local kernel=$(readlink -f $path/kernel)
|
|
local initrd=$(readlink -f $path/initrd)
|
|
local dtb_path=$(readlink -f $path/kernel-modules/dtbs)
|
|
|
|
if test -n "@copyKernels@"; then
|
|
copyToKernelsDir $kernel; kernel=$result
|
|
copyToKernelsDir $initrd; initrd=$result
|
|
fi
|
|
|
|
echo $(readlink -f $path) > $outdir/$generation-system
|
|
echo $(readlink -f $path/init) > $outdir/$generation-init
|
|
cp $path/kernel-params $outdir/$generation-cmdline.txt
|
|
echo $initrd > $outdir/$generation-initrd
|
|
echo $kernel > $outdir/$generation-kernel
|
|
|
|
if test $(readlink -f "$path") = "$default"; then
|
|
if [ @version@ -eq 1 ]; then
|
|
copyForced $kernel /boot/kernel.img
|
|
else
|
|
copyForced $kernel /boot/kernel7.img
|
|
fi
|
|
copyForced $initrd /boot/initrd
|
|
for dtb in $dtb_path/bcm*.dtb; do
|
|
dst="/boot/$(basename $dtb)"
|
|
copyForced $dtb "$dst"
|
|
filesCopied[$dst]=1
|
|
done
|
|
cp "$(readlink -f "$path/init")" /boot/nixos-init
|
|
echo "`cat $path/kernel-params` init=$path/init" >/boot/cmdline.txt
|
|
|
|
echo "$2" > /boot/defaultgeneration
|
|
fi
|
|
}
|
|
|
|
# Add all generations of the system profile to the menu, in reverse
|
|
# (most recent to least recent) order.
|
|
for generation in $(
|
|
(cd /nix/var/nix/profiles && ls -d system-*-link) \
|
|
| sed 's/system-\([0-9]\+\)-link/\1/' \
|
|
| sort -n -r); do
|
|
link=/nix/var/nix/profiles/system-$generation-link
|
|
addEntry $link $generation
|
|
done
|
|
|
|
# Add the firmware files
|
|
fwdir=@firmware@/share/raspberrypi/boot/
|
|
copyForced $fwdir/bootcode.bin /boot/bootcode.bin
|
|
copyForced $fwdir/fixup.dat /boot/fixup.dat
|
|
copyForced $fwdir/fixup_cd.dat /boot/fixup_cd.dat
|
|
copyForced $fwdir/fixup_db.dat /boot/fixup_db.dat
|
|
copyForced $fwdir/fixup_x.dat /boot/fixup_x.dat
|
|
copyForced $fwdir/start.elf /boot/start.elf
|
|
copyForced $fwdir/start_cd.elf /boot/start_cd.elf
|
|
copyForced $fwdir/start_db.elf /boot/start_db.elf
|
|
copyForced $fwdir/start_x.elf /boot/start_x.elf
|
|
|
|
# Add the config.txt
|
|
copyForced @configTxt@ /boot/config.txt
|
|
|
|
# Remove obsolete files from /boot and /boot/old.
|
|
for fn in /boot/old/*linux* /boot/old/*initrd-initrd* /boot/bcm*.dtb; do
|
|
if ! test "${filesCopied[$fn]}" = 1; then
|
|
rm -vf -- "$fn"
|
|
fi
|
|
done
|