Thanks Jim for answering this. Its good to know that it is a known problem and has been solved.
However, looking at the solution it looks that we consider such a disk as a non match and don't print any partition information. Also, we don't try to write the secondary table at the end. Is that right ? Why is it so? Why don't we try to read the partition table based on primary gpt table. Also, we should set write_back to 1 and try to write the secondary header at the end of disk (in case we have a free space at the end). thanks, rahul --- On Wed, 26/1/11, Jim Meyering <[email protected]> wrote: > From: Jim Meyering <[email protected]> > Subject: Re: [parted-devel] ped_assert after a gpt disk is shrunk > To: "rahul dev" <[email protected]> > Cc: [email protected] > Date: Wednesday, 26 January, 2011, 2:02 PM > rahul dev wrote: > > I am using libparted version of > 1.8.1. > > The latest is parted-2.3. > Thanks for the report, but... > > > I created a gpt partition table on a disk (which is > made out of a RAID-0 array). After that I shrink the disk > size and again try to read the partition table. > > > > I hit the following asserts in function gpt_read(). > > > > PED_ASSERT ((PedSector) > PED_LE64_TO_CPU (gpt->AlternateLBA) > > > <= disk->dev->length - 1, goto > error_free_gpt); > > > > This is due to the reason that after disk is shrunk in > size, the secondary has gone and primary table still points > to the old location which is beyond the current disk size. > > > > I believe that these asserts should be removed and we > should try to read the table from the information available > from the primary table and also try to create secondary gpt > table at the end of disk if we have sufficient free space > available at the end of disk which doesn't overlpa with the > last partition boundary. > > That bug was fixed nearly two years ago: > > http://git.debian.org/?p=parted/parted.git;a=commitdiff;h=554087b39ee0f > _______________________________________________ parted-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/parted-devel
