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Factor out the grub error loop, apply it to decrypt-on-boot

Browse Source 
OK, we now need to work around this goddamn grub bug in *three*
places, so let's stop copying the loop around and factor it out
instead. The third place is encrypted installs, as they wait
for the decryption prompt on boot.

Signed-off-by: Adam Williamson <awilliam@redhat.com>
This commit is contained in:
Adam Williamson 2018-08-19 10:29:23 -04:00
parent bdd26a09ee
commit 5d99d56f8d
1 changed files with 40 additions and 37 deletions
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77
lib/utils.pm
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@ -46,6 +46,40 @@ sub desktop_vt {
send_key "ctrl-alt-f${tty}";
}
sub _grub_error_loop {
# this is a loop used in a few different places to work around
# RHBZ#1618928, a bug where grub displays some error or debug
# messages in a pager on boot. We match on *either* the tag
# we're really looking for ('good') *or* the tag for this pager,
# then if we matched the pager, we loop (a maximum 10 times)
# pressing 'space' as long as we still match on the pager. As
# soon as we match the needle we were actually looking for, we
# escape. timeout is the time we should wait for the *first*
# match, timeoutcap is a cap on timeout for the *subsequent*
# matches; several of the users need this behaviour.
my %args = (
good => "someneedle",
timeout => 300,
timeoutcap => 60,
@_
);
my $timeout = $args{timeout};
assert_screen [$args{good}, "grub_error_page"], $timeout;
my $loopcount = 10;
while (match_has_tag "grub_error_page") {
$timeout = $args{timeoutcap} if ($timeout > $args{timeoutcap});
send_key "spc";
$loopcount -= 1;
if ($loopcount == 0) {
# let's not loop forever...
assert_screen $args{good}, $timeout;
}
else {
assert_screen [$args{good}, "grub_error_page"], $timeout;
}
}
}
# Wait for login screen to appear. Handle the annoying GPU buffer
# problem where we see a stale copy of the login screen from the
# previous boot. Will suffer a ~30 second delay if there's a chance
@ -61,27 +95,10 @@ sub boot_to_login_screen {
sleep 5;
$count -= 1;
}
assert_screen ["login_screen", "grub_error_page"], $args{timeout};
# FIXME grub_error_page is a workaround for #1618928, can probably
# be removed when that bug is fixed.
my $loopcount = 10;
while (match_has_tag "grub_error_page") {
my $timeout = $args{timeout};
$timeout = 300 if ($timeout > 300);
# we cap 300 as the timeouts inside this loop at 300 as it
# should always be the right number - if this is a
# post-upgrade case or the kickstart install case, that
# already finished by now
send_key "spc";
$loopcount -= 1;
if ($loopcount == 0) {
# let's not loop forever...
assert_screen "login_screen", $timeout;
}
else {
assert_screen ["login_screen", "grub_error_page"], $timeout;
}
}
# we cap the timeouts inside this loop at 300 as it should always
# be the right number - if this is a post-upgrade case or the
# kickstart install case, that already finished by now
_grub_error_loop(good=>"login_screen", timeout=>$args{timeout}, timeoutcap=>300);
if (match_has_tag "graphical_login") {
wait_still_screen 10, 30;
assert_screen "login_screen";
@ -234,21 +251,7 @@ sub do_bootloader {
# sure we actually did a UEFI boot
my $boottag = "bootloader_bios";
$boottag = "bootloader_uefi" if ($args{uefi});
# FIXME grub_error_page is a workaround for #1618928, can probably
# be removed when that bug is fixed
assert_screen [$boottag, "grub_error_page"], $args{timeout};
my $loopcount = 10;
while (match_has_tag "grub_error_page") {
send_key "spc";
$loopcount -= 1;
if ($loopcount == 0) {
# let's not loop forever
assert_screen $boottag;
}
else {
assert_screen [$boottag, "grub_error_page"];
}
}
_grub_error_loop(good=>$boottag, timeout=>$args{timeout}, timeoutcap=>30);
if ($args{mutex}) {
# cancel countdown
send_key "left";
@ -307,7 +310,7 @@ sub get_milestone {
sub boot_decrypt {
# decrypt storage during boot; arg is timeout (in seconds)
my $timeout = shift || 60;
assert_screen "boot_enter_passphrase", $timeout; #
_grub_error_loop(good=>"boot_enter_passphrase", timeout=>$timeout, timeoutcap=>60);
type_string get_var("ENCRYPT_PASSWORD");
send_key "ret";
}