Ошибка при установке Arch Linux со старого ISO образа

root@archiso ~ # pacstrap /mnt base                                                                                  :(
==> Creating install root at /mnt
==> Installing packages to /mnt
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
:: There are 50 members in group base:
:: Repository core
  1) bash  2) bzip2  3) coreutils  4) cryptsetup  5) device-mapper  6) dhcpcd  7) diffutils  8) e2fsprogs  9) file
  10) filesystem  11) findutils  12) gawk  13) gcc-libs  14) gettext  15) glibc  16) grep  17) gzip  18) inetutils
  19) iproute2  20) iputils  21) jfsutils  22) less  23) licenses  24) linux  25) logrotate  26) lvm2  27) man-db
  28) man-pages  29) mdadm  30) nano  31) netctl  32) pacman  33) pciutils  34) pcmciautils  35) perl  36) procps-ng
  37) psmisc  38) reiserfsprogs  39) s-nail  40) sed  41) shadow  42) sysfsutils  43) systemd-sysvcompat  44) tar
  45) texinfo  46) usbutils  47) util-linux  48) vi  49) which  50) xfsprogs

Enter a selection (default=all):  
resolving dependencies...
looking for conflicting packages...

Packages (131) acl-2.2.52-3  archlinux-keyring-20170611-1  attr-2.4.47-2  ca-certificates-20170307-1
              ca-certificates-cacert-20140824-4  ca-certificates-mozilla-3.31-3  ca-certificates-utils-20170307-1
              cracklib-2.9.6-1  curl-7.54.1-2  db-5.3.28-3  dbus-1.10.18-1  expat-2.2.2-1  gdbm-1.13-1  glib2-2.52.3-1
              gmp-6.1.2-1  gnupg-2.1.21-3  gnutls-3.5.14-1  gpgme-1.9.0-3  groff-1.22.3-7  hwids-20170328-1
              iana-etc-20170512-1  icu-59.1-1  iptables-1.6.1-1  kbd-2.0.4-1  keyutils-1.5.10-1  kmod-24-1
              krb5-1.15.1-1  libaio-0.3.110-1  libarchive-3.3.2-1  libassuan-2.4.3-1  libcap-2.25-1  libcap-ng-0.7.8-1
              libelf-0.169-2  libffi-3.2.1-2  libgcrypt-1.8.0-1  libgpg-error-1.27-1  libidn-1.33-1  libksba-1.3.4-2
              libldap-2.4.44-5  libmnl-1.0.4-1  libnftnl-1.0.7-1  libnghttp2-1.23.1-1  libnl-3.3.0-1  libpcap-1.8.1-2
              libpipeline-1.4.2-1  libpsl-0.17.0-2  libsasl-2.1.26-11  libseccomp-2.3.2-1
              libsecret-0.18.5+14+g9980655-1  libssh2-1.8.0-2  libsystemd-234.11-3  libtasn1-4.12-1  libtirpc-1.0.2-1
              libunistring-0.9.7-1  libusb-1.0.21-2  libutil-linux-2.30.1-2  linux-api-headers-4.10.1-1
              linux-firmware-20170622.7d2c913-1  lz4-1:1.7.5-1  mkinitcpio-23-1  mkinitcpio-busybox-1.26.1-1
              mpfr-3.1.5.p2-1  ncurses-6.0+20170527-1  nettle-3.3-1  npth-1.5-1  openresolv-3.9.0-1  openssl-1.1.0.f-2
              p11-kit-0.23.7-1  pacman-mirrorlist-20170729-1  pam-1.3.0-1  pambase-20130928-1  pcre-8.41-1
              pinentry-1.0.0-1  popt-1.16-9  readline-7.0.003-1  sqlite-3.19.3-1  systemd-234.11-3
              thin-provisioning-tools-0.7.0-1  tzdata-2017b-1  xz-5.2.3-1  zlib-1:1.2.11-2  bash-4.4.012-2
              bzip2-1.0.6-6  coreutils-8.27-1  cryptsetup-1.7.5-1  device-mapper-2.02.173-1  dhcpcd-6.11.5-1
              diffutils-3.6-1  e2fsprogs-1.43.4-1  file-5.31-1  filesystem-2017.03-2  findutils-4.6.0-2  gawk-4.1.4-2
              gcc-libs-7.1.1-4  gettext-0.19.8.1-2  glibc-2.25-7  grep-3.1-1  gzip-1.8-2  inetutils-1.9.4-5
              iproute2-4.12.0-2  iputils-20161105.1f2bb12-2  jfsutils-1.1.15-4  less-487-1  licenses-20140629-2
              linux-4.12.3-1  logrotate-3.12.3-1  lvm2-2.02.173-1  man-db-2.7.6.1-2  man-pages-4.12-1  mdadm-4.0-1
              nano-2.8.6-1  netctl-1.13-2  pacman-5.0.2-2  pciutils-3.5.4-1  pcmciautils-018-7  perl-5.26.0-1
              procps-ng-3.3.12-1  psmisc-23.1-1  reiserfsprogs-3.6.25-1  s-nail-14.9.0-1  sed-4.4-1  shadow-4.4-3
              sysfsutils-2.1.0-9  systemd-sysvcompat-234.11-3  tar-1.29-2  texinfo-6.4-1  usbutils-008-1
              util-linux-2.30.1-2  vi-1:070224-2  which-2.21-2  xfsprogs-4.11.0-1

Total Installed Size:  757.90 MiB

:: Proceed with installation? [Y/n]  
(131/131) checking keys in keyring                                        [#########################################] 100%
downloading required keys...
error: key "3C1C876030B65FE2" could not be looked up remotely
error: key "FC1B547C8D8172C8" could not be looked up remotely
error: required key missing from keyring
error: failed to commit transaction (unexpected error)
Errors occurred, no packages were upgraded.
==> ERROR: Failed to install packages to new root

pacman-key --init
pacman-key --populate
pacman-key --refresh-keys