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7fcf82451c
It turns out that there are two versions of Busybox, at least on Ubuntu 18.04. If you have the busybox-static package installed, you get a busybox that supports `ps a` and `head`. If you only have busybox-initramfs, you don't. Either way, you have `awk`. This change should also make this compatible with GNU ps, if you somehow end up with that in the initramfs environment. Reviewed-by: Tom Caputi <tcaputi@datto.com> Reviewed-by: Andrey Prokopenko <job@terem.fr> Signed-off-by: Richard Laager <rlaager@wiktel.com> Closes #10307
43 lines
1.3 KiB
Bash
Executable File
43 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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if [ ! -e /run/zfs_fs_name ]; then
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echo "Wait for the root pool to be imported or press Ctrl-C to exit."
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fi
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while [ ! -e /run/zfs_fs_name ]; do
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if [ -e /run/zfs_unlock_complete ]; then
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exit 0
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fi
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sleep 0.5
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done
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echo
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echo "Unlocking encrypted ZFS filesystems..."
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echo "Enter the password or press Ctrl-C to exit."
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echo
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zfs_fs_name=""
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if [ ! -e /run/zfs_unlock_complete_notify ]; then
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mkfifo /run/zfs_unlock_complete_notify
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fi
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while [ ! -e /run/zfs_unlock_complete ]; do
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zfs_fs_name=$(cat /run/zfs_fs_name)
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zfs_console_askpwd_cmd=$(cat /run/zfs_console_askpwd_cmd)
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systemd-ask-password "Encrypted ZFS password for ${zfs_fs_name}:" | \
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/sbin/zfs load-key "$zfs_fs_name" || true
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if [ "$(/sbin/zfs get -H -ovalue keystatus "$zfs_fs_name" 2> /dev/null)" = "available" ]; then
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echo "Password for $zfs_fs_name accepted."
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zfs_console_askpwd_pid=$(ps | awk '!'"/awk/ && /$zfs_console_askpwd_cmd/ { print \$1; exit }")
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if [ -n "$zfs_console_askpwd_pid" ]; then
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kill "$zfs_console_askpwd_pid"
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fi
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# Wait for another filesystem to unlock.
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while [ "$(cat /run/zfs_fs_name)" = "$zfs_fs_name" ] && [ ! -e /run/zfs_unlock_complete ]; do
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sleep 0.5
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done
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else
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echo "Wrong password. Try again."
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fi
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done
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echo "Unlocking complete. Resuming boot sequence..."
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echo "Please reconnect in a while."
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echo "ok" > /run/zfs_unlock_complete_notify
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