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Re: [Bug-xorriso] PMBR sizing with appended_part_as=gpt


From: Thomas Schmitt
Subject: Re: [Bug-xorriso] PMBR sizing with appended_part_as=gpt
Date: Thu, 10 Jan 2019 09:49:57 +0100

Hi,

i now commited the preliminary bug fix as final one.
  
https://dev.lovelyhq.com/libburnia/libisofs/commit/96261585f19894de8514a7ed81b3fede570f5d86

The cause of the situation covers valid use cases and thus will not be
changed. So subsequent adjustment of the protective partition's size
appears to be the right thing to do.


I am still pondering about your enhancement wishes.

- The user defined positioning of appended partitions still needs a more
  tangible description how it shall work.
  (What information does the user provide when ?
   Shall further information be read from the older version of the ISO ?)

- More than 4 GPT partitions and user-defined type GUID is quite
  straightforward. (Mainly increase of ISO_MAX_PARTITIONS, adjustment
  of input tests for higher partition numbers, and a new API call to
  hand over the GUID.)

  I will start to work on it when i have fixed another bug which popped
  up yesterday: The defaults of xorriso's native command set prevent
  production of GPT by
    "Program error: GPT partitions 2 and 3 overlap by 64 blocks"
  (Workaround is to use command: -compliance no_emul_toc.
   which is default in mkisofs emulation.)


Have a nice day :)

Thomas




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