diff options
| -rw-r--r-- | perl-install/partition_table/dos.pm | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/perl-install/partition_table/dos.pm b/perl-install/partition_table/dos.pm index a97fcf89d..92b28beee 100644 --- a/perl-install/partition_table/dos.pm +++ b/perl-install/partition_table/dos.pm @@ -6,9 +6,11 @@ use vars qw(@ISA); @ISA = qw(partition_table::raw); +use Time::HiRes qw(usleep); use common; use partition_table::raw; use partition_table; +use fs::proc_partitions; use fs::type; use c; @@ -291,7 +293,24 @@ sub need_to_tell_kernel { # diskdrake will not let the user delete an individual partition that is mounted, but will let the # user clear all partitions. So initialize() records if any partitions were mounted and we take note # of that here. - return ! -e '/usr/lib/udev/rules.d/60-block.rules' || delete $hd->{hadMountedPartitions} || any { $_->{isMounted} } partition_table::get_normal_parts($hd); + return 1 if ! -e '/usr/lib/udev/rules.d/60-block.rules' || delete $hd->{hadMountedPartitions} || any { $_->{isMounted} } partition_table::get_normal_parts($hd); + + # No further actions must be performed until the kernel has been informed of the changes. There is + # no easy way to check that udevd has received the uevent and called the BLKRRPART ioctl, so do it + # the hard way. + my $tries = 0; + do { + usleep(100000); + log::l("checking that udevd has informed the kernel of partition table changes"); + eval { fs::proc_partitions::compare($hd) }; + return 0 if !$@; + $tries++; + } while $tries < 5; + + # We don't expect to get here, but fail safe if so. + log::l("udevd failed to inform kernel of partition table changes"); + $hd->{rebootNeeded} = 1; + 1; } sub empty_raw { { raw => [ ({}) x $nb_primary ] } } |