adding split-architecture source tarball support... untested and probably not done yet, so not tagging a release

bdisk/bGPG.py

@@ -13,7 +13,11 @@ def genGPG(conf):
     bdisk = conf['bdisk']
     gpghome = conf['gpg']['mygpghome']
     distkey = build['gpgkey']
-    gpgkeyserver = build['gpgkeyserver']
+    gpgkeyserver = []
+    for a in conf['build']['arch']:
+        keysrv = conf['src'][a]['gpgkeyserver']
+        if keysrv and (keysrv not in gpgkeyserver):
+            gpgkeyserver.append(keysrv)
     templates_dir = '{0}/extra/templates'.format(build['basedir'])
     mykey = False
     pkeys = []
@@ -31,16 +35,17 @@ def genGPG(conf):
     os.environ['GNUPGHOME'] = gpghome
     gpg = gpgme.Context()
     # do we need to add a keyserver?
-    if gpgkeyserver != '':
+    if len(gpgkeyserver) != 0:
         dirmgr = '{0}/dirmngr.conf'.format(gpghome)
-        if os.path.isfile(dirmgr):
+        for s in gpgkeyserver:
-            with open(dirmgr, 'r+') as f:
+            if os.path.isfile(dirmgr):
-                findme = any(gpgkeyserver in line for line in f)
+                with open(dirmgr, 'r+') as f:
-                if not findme:
+                    findme = any(s in line for line in f)
-                    f.seek(0, os.SEEK_END)
+                    if not findme:
-                    f.write("\n# Added by {0}.\nkeyserver {1}\n".format(
+                        f.seek(0, os.SEEK_END)
-                                                        bdisk['pname'],
+                        f.write("\n# Added by {0}.\nkeyserver {1}\n".format(
-                                                        gpgkeyserver))
+                                                            bdisk['pname'],
+                                                            s))
     if mykey:
         try:
             privkey = gpg.get_key(mykey, True)
@@ -62,15 +67,16 @@ def genGPG(conf):
             privkey = gpg.get_key(gpg.genkey(tpl_out).fpr, True)
             pkeys.append(privkey)
             # do we need to add a keyserver? this is for the freshly-generated GNUPGHOME
-            if build['gpgkeyserver'] != '':
+            if len(gpgkeyserver) != 0:
                 dirmgr = '{0}/dirmngr.conf'.format(gpghome)
-                with open(dirmgr, 'r+') as f:
+                for s in gpgkeyserver:
-                    findme = any(gpgkeyserver in line for line in f)
+                    with open(dirmgr, 'r+') as f:
-                    if not findme:
+                        findme = any(s in line for line in f)
-                        f.seek(0, os.SEEK_END)
+                        if not findme:
-                        f.write("\n# Added by {0}.\nkeyserver {1}\n".format(
+                            f.seek(0, os.SEEK_END)
-                                                            bdisk['pname'],
+                            f.write("\n# Added by {0}.\nkeyserver {1}\n".format(
-                                                            build['gpgkeyserver']))
+                                                                bdisk['pname'],
+                                                                s))
     gpg.signers = pkeys
     # Now we try to find and add the key for the base image.
     gpg.keylist_mode = gpgme.KEYLIST_MODE_EXTERN  # remote (keyserver)
@@ -125,7 +131,7 @@ def killStaleAgent(conf):
             psutil.Process(p).terminate()
 
 def signIMG(path, conf):
-    if conf['build']['gpg']:
+    if conf['build']['sign']:
         # Do we want to kill off any stale gpg-agents? (So we spawn a new one)
         # Requires further testing.
         #killStaleAgent()

bdisk/host.py

@@ -68,9 +68,9 @@ def parseConfig(confs):
     config_dict = {s:dict(config.items(s)) for s in config.sections()}
     # Convert the booleans to pythonic booleans in the dict...
     config_dict['bdisk']['user'] = config['bdisk'].getboolean('user')
-    config_dict['build']['gpg'] = config['build'].getboolean('gpg')
     config_dict['build']['i_am_a_racecar'] = config['build'].getboolean('i_am_a_racecar')
     config_dict['build']['ipxe'] = config['build'].getboolean('ipxe')
+    config_dict['build']['sign'] = config['build'].getboolean('sign')
     config_dict['build']['multiarch'] = (config_dict['build']['multiarch']).lower()
     config_dict['ipxe']['iso'] = config['ipxe'].getboolean('iso')
     config_dict['ipxe']['usb'] = config['ipxe'].getboolean('usb')
@@ -126,16 +126,21 @@ def parseConfig(confs):
                                         config_dict['build']['multiarch']))
     ## VALIDATORS ##
     # Validate bootstrap mirror
-    if (validators.domain(config_dict['build']['mirror']) or validators.ipv4(
+    config_dict['src'] = {}
-                                config_dict['build']['mirror']) or validatords.ipv6(
+    for a in config_dict['build']['arch']:
-                                config_dict['build']['mirror'])):
+        config_dict['src'][a] = config_dict['source_' + a]
-        try:
+        if config_dict['src'][a]['enabled']:
-            getaddrinfo(config_dict['build']['mirror'], None)
+            if (validators.domain(config_dict['src'][a]['mirror']) or validators.ipv4(
-        except:
+                                        config_dict['src'][a]['mirror']) or validatords.ipv6(
-            exit(('{0}: ERROR: {1} does not resolve and cannot be used as a ' + 
+                                        config_dict['src'][a]['mirror'])):
-                'mirror for the bootstrap tarballs. Check your configuration.').format(
+                try:
-                                        datetime.datetime.now(),
+                    getaddrinfo(config_dict['src'][a]['mirror'], None)
-                                        config_dict['build']['host']))
+                except:
+                    exit(('{0}: ERROR: {1} does not resolve and cannot be used as a ' + 
+                        'mirror for the bootstrap tarballs. Check your configuration.').format(
+                                                datetime.datetime.now(),
+                                                config_dict['src'][a]['host']))
+        config_dict['src'][a]['gpg'] = config['source_' + a].getboolean('gpg')
     # Are we rsyncing? If so, validate the rsync host.
     # Works for IP address too. It does NOT check to see if we can
     # actually *rsync* to it; that'll come later.

bdisk/prep.py

@@ -25,27 +25,36 @@ def dirChk(conf):
 def downloadTarball(conf):
     build = conf['build']
     dlpath = build['dlpath']
+    src = conf['src']
     arch = build['arch']
-    #mirror = 'http://mirrors.kernel.org/archlinux'
-    mirror = build['mirrorproto'] + '://' + build['mirror']
-    rlsdir = mirror + build['mirrorpath']
-    sha_in = urlopen(mirror + build['mirrorchksum'])
-    # returns path/filename e.g. /some/path/to/file.tar.gz
-    # we use .gnupg since we'll need it later.
-    os.makedirs(dlpath + '/.gnupg', exist_ok = True)
     tarball_path = {}
-    for x in arch:
-        tarball_path[x] = dlpath + '/.latest.' + x + '.tar'
-    sha1sums = sha_in.read()
-    sha_in.close()
-    sha_raw = sha1sums.decode("utf-8")
-    sha_list = list(filter(None, sha_raw.split('\n')))
-    sha_dict = {x.split()[1]: x.split()[0] for x in sha_list}
-    # all that lousy work just to get a sha1 sum. okay. so.
     for a in arch:
+        locsrc = conf['source_' + a]
+        mirror = locsrc['mirrorproto'] + '://' + locsrc['mirror']
+        rlsdir = mirror + locsrc['mirrorpath']
+        if locsrc['mirrorchksum'] != '':
+            if not locsrc['chksumtype']:
+                exit(("{0}: source_{1}:chksumtype is unset!".format(
+                                                        datetime.datetime.now(),
+                                                        a))
+            hash_type = locsrc['chksumtype']
+            hash_in = urlopen(mirror + locsrc['mirrorchksum'])
+            hashsums = hash_in.read()
+            hash_in.close()
+            hash_raw = hashsums.decode("utf-8")
+            hash_list = list(filter(None, hash_raw.split('\n')))
+            hash_dict = {x.split()[1]: x.split()[0] for x in hash_list}
+        # returns path/filename e.g. /some/path/to/file.tar.gz
+        # we use .gnupg since we'll need it later.
+        os.makedirs(dlpath + '/.gnupg', exist_ok = True)
+        tarball_path[a] = dlpath + '/.latest.' + a + '.tar'
         pattern = re.compile('^.*' + a + '\.tar(\.(gz|bz2|xz))?$')
-        tarball = [filename.group(0) for l in list(sha_dict.keys()) for filename in [pattern.search(l)] if filename][0]
+        if locsrc['mirrorfile'] != '':
-        sha1 = sha_dict[tarball]
+            tarball = locsrc['mirrorfile']
+        else:
+            tarball = [filename.group(0) for l in list(hash_dict.keys()) for filename in [pattern.search(l)] if filename][0]
+        if locsrc['mirrorchksum'] != '':
+            hashsum = hash_dict[tarball]
         if os.path.isfile(tarball_path[a]):
             pass
         else:
@@ -53,7 +62,6 @@ def downloadTarball(conf):
             print("{0}: [PREP] Fetching tarball ({1} architecture)...".format(
                                                             datetime.datetime.now(),
                                                             a))
-            #dl_file = urllib.URLopener()
             tarball_dl = urlopen(rlsdir + tarball)
             with open(tarball_path[a], 'wb') as f:
                 f.write(tarball_dl.read())
@@ -63,20 +71,32 @@ def downloadTarball(conf):
                                                     tarball_path[a],
                                                     humanize.naturalsize(
                                                         os.path.getsize(tarball_path[a]))))
-        print("{0}: [PREP] Checking hash checksum {1} against {2}...".format(
+        if locsrc['mirrorchksum'] != '':
-                                                    datetime.datetime.now(),
+            print("{0}: [PREP] Checking hash checksum {1} against {2}...".format(
-                                                    sha1,
+                                                        datetime.datetime.now(),
-                                                    tarball_path[a]))
+                                                        hashsum,
-        tarball_hash = hashlib.sha1(open(tarball_path[a], 'rb').read()).hexdigest()
+                                                        tarball_path[a]))
-        if tarball_hash != sha1:
+            # Calculate the checksum according to type specified.
-            exit(("{0}: {1} either did not download correctly\n\t\t\t    or a wrong (probably old) version exists on the filesystem.\n\t\t\t    " +
+            tarball_hash = False
-                                "Please delete it and try again.").format(datetime.datetime.now(), tarball))
+            for i in hashlib.algorithms_available:
-        elif build['mirrorgpgsig'] != '':
+                if hash_type == i:
-            # okay, so the sha1 matches. let's verify the signature.
+                    hashfunc = getattr(hashlib, i)
-            if build['mirrorgpgsig'] == '.sig':
+                    tarball_hash = hashfunc(open(tarball_path[a], 'rb').read()).hexdigest()
+                    break
+            if not tarball_hash:
+                exit(("{0}: source_{1}:chksumtype '{2}' is not supported on this machine!".format(
+                                                            datetime.datetime.now(),
+                                                            a,
+                                                            hash_type))
+            if tarball_hash != hashsum:
+                exit(("{0}: {1} either did not download correctly\n\t\t\t    or a wrong (probably old) version exists on the filesystem.\n\t\t\t    " +
+                                    "Please delete it and try again.").format(datetime.datetime.now(), tarball))
+        if locsrc['mirrorgpgsig'] != '':
+            # let's verify the signature.
+            if locsrc['mirrorgpgsig'] == '.sig':
                 gpgsig_remote = rlsdir + tarball + '.sig'
             else:
-                gpgsig_remote = build['mirrorgpgsig']
+                gpgsig_remote = locsrc['mirrorgpgsig']
             sig_dl = urlopen(gpgsig_remote)
             sig = tarball_path[a] + '.sig'
             with open(sig, 'wb+') as f:

docs/TODO

@@ -9,15 +9,15 @@
 -- https://code.google.com/p/byte-unixbench/
 -- https://github.com/akopytov/sysbench
 -- (http://blog.due.io/2014/linode-digitalocean-and-vultr-comparison/ etc.)
--implement pyalpm to decreate dependency on chroot pacman-ing?
+-There *has* to be a better way of handling package installation in the chroots.
+--implement pyalpm to decreate dependency on chroot pacman-ing?
 --or even maybe https://wiki.archlinux.org/index.php/offline_installation_of_packages in pure python!
 -set up automatic exporting to PDF of the user manual server-side. https://pypi.python.org/pypi/unoconv/0.6
--There *has* to be a better way of handling package installation in the chroots.
 -maybe remove lxde, firefox, chrome and replace with enlightenment/midori?
 -custom repo? https://brainwreckedtech.wordpress.com/2013/01/27/making-your-own-arch-linux-repository/
---https://wiki.archlinux.org/index.php/Building_32-bit_packages_on_a_64-bit_system
+--https://wiki.archlinux.org/index.php/Building_32-bit_packages_on_a_64-bit_system # NOTE: arch has dropped i686, now continued as archlinux32
 -implement better "additional" packages list. specify for path in build.ini- these should be more easily changed by end users. DON'T TOUCH iso.pkgs.lst since those are necessary for booting.
--shorewall/some other firewall?
+-automatic shorewall/some other firewall?
 -autodetection/configuration of network. DHCP is currently running by default, but does it need to support IPv6? if so, how would the user configure their network?
 -DISABLE NETWORKMANAGER AND "fi.w1.wpa_supplicant1"??? keeps spawning wpa_supplicant (and thusly killing networking proper)
 -for netboot, custom user agent (should be defined by build.ini)
@@ -27,7 +27,7 @@
 -WISH: signing for secureboot releases (PreLoader and loader.efi handle this okay, but require manual intervention)
 -does loader.efi support splash backgrounds? can i implement that differently somehow?
 --yes, see e.g. https://www.reddit.com/r/archlinux/comments/3bwgf0/where_put_the_splasharchbmp_to_splash_screen_boot/
--strip out/remove unnecessary and orphan packages (e.g. gcc, make, automake, etc.)
+-strip out/remove unnecessary and orphan packages (e.g. gcc, make, automake, etc.) before building ISO
 -incorporate iPXE tweaks:
 --http://ipxe.org/crypto 
 --http://ipxe.org/cmd/imgtrust
@@ -39,6 +39,7 @@
 ---#imgverify initrd path/to/initrd.sig
 ---DONE, partially. need to incorporate codesign certs/keys. routines, conf variables
 -enable mirror= kernel commandline.
+-NOTE: Following should be implemented via AIF-NG (https://git.square-r00t.net/AIF-NG, work pending for fix to BDisk for i686/x86_64 split) 
 --if mirror_(NAME) is present, use that as repo name.
 --if it starts with /, treat as mirrorlist (Include); otherwise use Server = 
 --if it has mirror_SIG-X, set signature options e.g. _SIG-N would be "SigLevel = Never"
@@ -47,5 +48,3 @@
 -include WinMTR, build Mac OS X MTR for dist/tools on CD
 -include pre-compiled LibreCrypt for opening LUKS parts on Windows (https://github.com/t-d-k/LibreCrypt)
 --curl -s https://raw.githubusercontent.com/t-d-k/LibreCrypt/master/README.md | egrep 'InstallLibreCrypt_v[A-Za-z0-9\.]*.exe' | cut -f2 -d'"'
-
-

docs/manual/HEAD.adoc

@@ -1,6 +1,6 @@
 = BDisk User and Developer Manual
 Brent Saner <bts@square-r00t.net>
-v1.0, 2016-12
+v1.1, 2017-03-06
 :doctype: book
 :data-uri:
 :imagesdir: images

docs/manual/user/BUILDINI.adoc

@@ -35,16 +35,27 @@ We'll go into more detail for each section below.
  username = ${bdisk:uxname}
  name = Default user
  password = $$6$$t92Uvm1ETLocDb1D$$BvI0Sa6CSXxzIKBinIaJHb1gLJWheoXp7WzdideAJN46aChFu3hKg07QaIJNk4dfIJ2ry3tEfo3FRvstKWasg/
- [build]
+ [source_x86_64]
+ mirror = mirror.us.leaseweb.net
+ mirrorproto = https
+ mirrorpath = /archlinux/iso/latest/
+ mirrorfile = .sig
+ mirrorchksum = ${mirrorpath}sha1sums.txt
+ chksumtype = sha1
+ mirrorgpgsig =
+ gpgkey = 7F2D434B9741E8AC
+ gpgkeyserver =
+ [source_i686]
  mirror = mirror.us.leaseweb.net
  mirrorproto = https
  mirrorpath = /archlinux/iso/latest/
  mirrorfile = 
  mirrorchksum = ${mirrorpath}sha1sums.txt
+ chksumtype = sha1
  mirrorgpgsig =
- gpgkey = 7F2D434B9741E8AC
+ gpgkey =
  gpgkeyserver =
- gpg = no
+ [build]
  dlpath = /var/tmp/${bdisk:uxname}
  chrootdir = /var/tmp/chroots
  basedir = /opt/dev/bdisk
@@ -54,6 +65,7 @@ We'll go into more detail for each section below.
  archboot = ${prepdir}/${bdisk:name}
  mountpt = /mnt/${bdisk:uxname}
  multiarch = yes
+ sign = yes
  ipxe = no
  i_am_a_racecar = no
  [gpg]
@@ -184,15 +196,23 @@ The escaped, salted, hashed string to use for the non-root user.
 
 Please see <<passwords,the section on passwords>> for information on this value. In the <<example,example above>>, the string `$$6$$t92Uvm1ETLocDb1D$$BvI0Sa6CSXxzIKBinIaJHb1gLJWheoXp7WzdideAJN46aChFu3hKg07QaIJNk4dfIJ2ry3tEfo3FRvstKWasg/` is created from the password `test`. I cannot stress this enough, do not use a plaintext password here nor just use a regular `/etc/shadow` file/`crypt(3)` hash here. Read the section. I promise it's short.
 
-=== `[build]`
+=== `[source_<arch>]`
-This section controls some aspects about the host and things like filesystem paths, etc.
+This section controls where to fetch the "base" tarballs.
+
+NOTE: Previously, these settings were *not* architecture-specific, and included in the <<code_build_code,`build`>> section.
+
+It was necessary to create this section per architecture, because https://www.archlinux.org/news/phasing-out-i686-support/[Arch Linux has dropped i686 support^]. However, plenty of other distros also have removed support and other third-party projects have ported. (You can find the Arch Linux 32-bit/i686 port project http://archlinux32.org/[here^].)
+
+The directives here are only covered once, however, since both sections are identical- they just allow you to specify different mirrors. Note that the two settings are `[source_i686]` (for 32-bit) and `[source_x86_64]` (for 64-bit/multilib).
+
+Which section is used (or both) depends on what <<code_multiarch_code, architectures you have enabled>> for the build.
 
 ==== `mirror`
 A mirror that hosts the bootstrap tarball. It is *highly* recommended you use an Arch Linux https://wiki.archlinux.org/index.php/Install_from_existing_Linux#Method_A:_Using_the_bootstrap_image_.28recommended.29[bootstrap tarball^] as the build process is highly specialized to this (but <<bug_reports_feature_requests,patches/feature requests>> are welcome for other built distros). You can find a list of mirrors at the bottom of Arch's https://www.archlinux.org/download/[download page^].
 
 . No whitespace
 . Must be accessible remotely/via a WAN-recognized address
-. Must be a domain/FQDN only; no paths (those come later!)
+. Must be a domain/FQDN (or IP address) only; no paths (those come later!)
 
 ==== `mirrorproto`
 What protocol should we use for the <<code_mirror_code,`mirror`>>?
@@ -208,14 +228,42 @@ What is the path to the tarball directory on the <<code_mirror_code,`mirror`>>?
 . No whitespace
 
 ==== `mirrorfile`
-What is the filename for the tarball found in the path specified in <<code_mirrorpath_code,`mirrorpath`>> ? If left blank, we will use the sha1 <<code_mirrorchksum_code,checksum>> file to try to guess the most recent file.
+What is the filename for the tarball found in the path specified in <<code_mirrorpath_code,`mirrorpath`>> ? If left blank, we will use the hash <<code_mirrorchksum_code,checksum>> file to try to guess the most recent file.
 
 ==== `mirrorchksum`
-The path to a sha1 checksum file of the bootstrap tarball.
+*[optional]* +
+*default: (no hash checking done)* +
+*requires: <<code_chksumtype_code,`chksumtype`>>*
+
+The path to a checksum file of the bootstrap tarball.
 
 . No whitespace
 . Must be the full path
-. Don't include the mirror domain or protocol
+. Don't include the <<code_mirror_code,mirror domain>> or <<code_mirrorproto_code,protocol>>
+
+==== `chksumtype`
+The algorithm that <<code_mirrorchksum_code,`mirrorchksum`>>'s hashes are in.
+
+[options="header"]
+|======================
+7+^|Accepts one of:
+^m|blake2b
+^m|blake2s
+^m|md5
+^m|sha1
+^m|sha224
+^m|sha256
+^m|sha384
+^m|sha512
+^m|sha3_224
+^m|sha3_256
+^m|sha3_384
+^m|sha3_512
+^m|shake_128
+^m|shake_256
+|======================
+
+TIP: You may have support for additional hashing algorithms, but these are the ones gauranteed to be supported by Python's https://docs.python.org/3/library/hashlib.html[hashlib module^]. To get a full list of algorithms the computer you're building on supports, you can run `python3 -c 'import hashlib;print(hashlib.algorithms_available)'`. Most likely, however, <<code_mirrorchksum_code,`mirrorchksum`>> is going to be hashes of one of the above.
 
 ==== `mirrorgpgsig`
 *[optional]* +
@@ -225,7 +273,7 @@ The path to a sha1 checksum file of the bootstrap tarball.
 
 If the bootstrap tarball file has a GPG signature, we can use it for extra checking. If it's blank, GPG checking will be disabled.
 
-If you specify just `.sig` (or use the default and don't specify a <<code_mirrorfile_code,`mirrorfile`>>), BDisk will try to guess based on the file from the sha1 <<code_mirrorchksum_code,checksum>> file. Note that this must evaluate to a full URL. (e.g. `${mirrorproto}://${mirror}${mirrorpath}somefile.sig`)
+If you specify just `.sig` (or use the default and don't specify a <<code_mirrorfile_code,`mirrorfile`>>), BDisk will try to guess based on the file from the hash <<code_mirrorchksum_code,checksum>> file. Note that unless you're using the `.sig` "autodetection", this must evaluate to a full URL. (e.g. `${mirrorproto}://${mirror}${mirrorpath}somefile.sig`)
 
 ==== `gpgkey`
 *requires: <<optional,_gpg/gnupg_>>*
@@ -245,6 +293,18 @@ What is a valid keyserver we should use to fetch <<code_gpgkey_code,`gpgkey`>>?
 . The default (blank) is probably fine. If you don't specify a personal GPG config, then you'll most likely want to leave this blank.
 . If set, make sure it is a valid keyserver URI (e.g. `hkp://keys.gnupg.net`)
 
+[options="header"]
+|======================
+2+^|Accepts (case-insensitive) one of:
+^m|yes ^m|no
+^m|true ^m|false
+^m|1 ^m|0
+|======================
+
+=== `[build]`
+This section controls some aspects about the host and things like filesystem paths, etc.
+
+
 ==== `gpg`
 Should we sign our release files? See the <<code_gpg_code_2,`[gpg]`>> section.
 

extra/dist.build.ini

@@ -28,15 +28,29 @@ username = ${bdisk:uxname}
 name = Default user
 password =
 
-[build]
+[source_x86_64]
 mirror = mirror.us.leaseweb.net
 mirrorproto = https
 mirrorpath = /archlinux/iso/latest/
 mirrorfile = 
 mirrorchksum = ${mirrorpath}sha1sums.txt
+chksumtype = sha1
 mirrorgpgsig =
 gpgkey = 7F2D434B9741E8AC
 gpgkeyserver =
+
+[source_i686]
+mirror = mirror.us.leaseweb.net
+mirrorproto = https
+mirrorpath = /archlinux/iso/latest/
+mirrorfile = 
+mirrorchksum = ${mirrorpath}sha1sums.txt
+chksumtype = sha1
+mirrorgpgsig =
+gpgkey = 7F2D434B9741E8AC
+gpgkeyserver =
+
+[build]
 gpg = no
 dlpath = /var/tmp/${bdisk:uxname}
 chrootdir = /var/tmp/chroots
@@ -47,6 +61,7 @@ prepdir = ${dlpath}/temp
 archboot = ${prepdir}/${bdisk:name}
 mountpt = /mnt/${bdisk:uxname}
 multiarch = yes
+sign = yes
 ipxe =
 i_am_a_racecar = yes
 

extra/pkg.build.ini

@@ -28,15 +28,29 @@ username = ${bdisk:uxname}
 name = Default user
 password =
 
-[build]
+[source_x86_64]
 mirror = mirror.us.leaseweb.net
 mirrorproto = https
 mirrorpath = /archlinux/iso/latest/
 mirrorfile = 
 mirrorchksum = ${mirrorpath}sha1sums.txt
+chksumtype = sha1
 mirrorgpgsig =
 gpgkey = 7F2D434B9741E8AC
 gpgkeyserver =
+
+[source_i686]
+mirror = mirror.us.leaseweb.net
+mirrorproto = https
+mirrorpath = /archlinux/iso/latest/
+mirrorfile = 
+mirrorchksum = ${mirrorpath}sha1sums.txt
+chksumtype = sha1
+mirrorgpgsig =
+gpgkey = 7F2D434B9741E8AC
+gpgkeyserver =
+
+[build]
 gpg = no
 dlpath = /var/tmp/${bdisk:uxname}
 chrootdir = /var/tmp/chroots