Recently Written · git

commit 78a0a92586d65c30657c36ab215f359cd625d61d
Spenser Truex <spensertruexonline@gmail.com>
2019-04-02 15:17:47 -0700

Added installation and readme.

 README.md | 32 ++++++++++++++++++++++++++++++++
 backup    | 29 ++---------------------------
 backup.pl | 27 +++++++++++++++++++++++++++
 install   |  4 ++++
 4 files changed, 65 insertions(+), 27 deletions(-)

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d474f9b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,32 @@
+# Automatic encrypted /home backups
+
+# Install
+Encrypt and install filesystems on the backup disk.
+
+``` shell
+# lsblk
+# parted /dev/sdb
+> mktable
+> mkpart
+# cryptsetup luksFormat /dev/sdb1
+# cryptsetup luksOpen /dev/sdb1 sdb1
+# mkdir /mnt/sdb1
+# mount /dev/mapper/sdb1 /mnt/sdb1
+# mkfs.ext4 /mnt/sdb1
+# umount /dev/mapper/sdb1
+```
+
+Modify the user-data bash file (`backup`) to fit your keyfile, UUID, username,
+and mount folder.
+
+Keyfile should just be a plaintext file with the password for the disk.
+
+Get the uuid with `# blkid` on the partition.
+
+Username is for the folder to backup under `/home`.
+
+Mount folder cannot be in the `/home`.
+
+Execute it as root with the device plugged in.
+
+`# ./backup`
diff --git a/backup b/backup
index cd2cb89..7bbda6c 100755
--- a/backup
+++ b/backup
@@ -1,27 +1,2 @@
-#!/usr/bin/perl
-use strict;
-use warnings;
-my $uuid = $ARGV[0];
-my $keyfile = $ARGV[1];
-print "Press any key when the device is plugged in.\n";
-getc();
-# Put auto-dev-detect code here
-my $last_half;
-my $blkid = `blkid`;
-print "$blkid\n$uuid\n$keyfile";
-if($blkid =~ /(.*)$uuid.*/) {
-    print $1;
-    my $tmp = $1;
-    $tmp =~ m#/dev/(.*?):#;
-    $last_half = $1;
-} else {
-    die "Could not get a device ID from that UUID."
-}
-my $mount = "/mnt/dev/$last_half";
-my $mapper = "/dev/mapper/$last_half";
-`cryptsetup --key-file $keyfile luksOpen /dev/$last_half $last_half`;
-`mkdir -p $mount`;
-`mount /dev/mapper/$last_half $mount`;
-# Do a home-only backup
-my $bname = `date`;
-`tar -cjf '$mount/backup-$bname.tar.bz2' /home/jose`;
+#!/bin/bash
+backup.pl '64f91d6e-90e2-41d7-8494-bcb1d01b7b40' '/home/jose/bin/keyfile' 'jose' '/mnt'
diff --git a/backup.pl b/backup.pl
new file mode 100755
index 0000000..d7cda2b
--- /dev/null
+++ b/backup.pl
@@ -0,0 +1,27 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+my $uuid = $ARGV[0];
+my $keyfile = $ARGV[1];
+my $user = $ARGV[2];
+my $mountfolder = $ARGV[3];
+# Put auto-dev-detect code here
+my $last_half;
+my $blkid = `blkid`;
+print "$blkid\n$uuid\n$keyfile";
+if($blkid =~ /(.*)$uuid.*/) {
+    print $1;
+    my $tmp = $1;
+    $tmp =~ m#/dev/(.*?):#;
+    $last_half = $1;
+} else {
+    die "Could not get a device ID from that UUID."
+}
+my $mount = "$mountfolder/dev/$last_half";
+my $mapper = "/dev/mapper/$last_half";
+`cryptsetup --key-file $keyfile luksOpen /dev/$last_half $last_half`;
+`mkdir -p $mount`;
+`mount /dev/mapper/$last_half $mount`;
+# Do a home-only backup
+my $bname = `date`;
+`tar -cjf '$mount/backup-$bname.tar.bz2' /home/$user`;
diff --git a/install b/install
new file mode 100755
index 0000000..3f64eb1
--- /dev/null
+++ b/install
@@ -0,0 +1,4 @@
+#!/bin/bash
+chown root backup
+cp backup /usr/bin
+cp backup.pl /usr/bin