mkimage-profiles/features.in/e2k/lib/50-e2k-write.sh
Michael Shigorin 5e0e2e4e3d e2k: add url to write script
...so that further reading is at least referred to
(the script gets into current ISO images).
2020-09-26 17:39:23 +03:00

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#!/bin/sh -efu
# ALT: write Elbrus boot media
# public domain 2020 Michael Shigorin <mike@altlinux.org>
# http://altlinux.org/elbrus
error() { echo "$@" >&2; exit 1; }
usage() { error "Usage: $0 /path/to/alt-e2k.iso /dev/sdX1_or_/dev/sr0"; }
[ $# = 2 ] || usage
[ -s "$1" ] || usage
[ -b "$2" ] || usage
checkuid() { [ "$(id -u)" = 0 ] || error "$0: need to run as root"; }
format() { mkfs.ext2 -E packed_meta_blocks=1,num_backup_sb=1 -L altinst "$1"; }
case "$2" in
/dev/sr[0-9]*|dvd*|cd*)
grep -qw "^$2" /proc/mounts && checkuid && umount -v "$2"
echo "Writing DVD image..."
growisofs -dvd-compat -Z "$2"="$1"
;;
/dev/sd*)
grep -q "^$1" /proc/mounts && error "$1 mounted already"
checkuid
[ "$(blkid -o value -s LABEL "$2")" = "altinst" ] || format "$2"
src="$(mktemp -d)"
dst="$(mktemp -d)"
echo -n "mounting image... "
mount -o loop,ro "$1" "$src"; echo "done"
echo -n "mounting drive... "
mount -o noatime "$2" "$dst"; echo "done"
echo "copying contents..."
rsync -Pavc --inplace --delete --numeric-ids "$src/" "$dst/" ||
cp -avt "$dst" -- "$src"/{.disk,*}
grep -q "^default=.*_flash$" "$dst/boot.conf" || {
echo -n "updating default boot target... "
sed -i 's,default=.*$,&_flash,' "$dst/boot.conf"
echo "done"
}
echo -n "unmounting media... "
umount "$src" "$dst"
echo "done."
;;
*)
usage
;;
esac