[Bug 556167] Re: vmbuilder uses parted to create disk images, which leads to broken sector counts (cannot use grub2 on disk images created by vmbuilder/parted)

Kees Cook kees at ubuntu.com
Wed Nov 16 18:41:34 UTC 2011


Hm, I don't agree. I think the problem is in libparted/arch/linux.c
init_file():

        dev->bios_geom.sectors = 32;

vs _device_probe_geometry() which defaults to what the LBA reports or:

        dev->bios_geom.sectors = 63;

So, when vmbuilder uses parted to build the disk, parted treats the disk
file differently than it would a real LBA mode drive. Fixing this is the
core cause of the problem, as far as I see it.

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https://bugs.launchpad.net/bugs/556167

Title:
  vmbuilder uses parted to create disk images, which leads to broken
  sector counts (cannot use grub2 on disk images created by
  vmbuilder/parted)

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