[Bug 1050774] Re: grub-script-check assert failure: *** glibc detected *** /usr/bin/grub-script-check: double free or corruption (!prev): 0x08210b38 ***

[dino99]

I'm back for more comments:

to get around that issue i've have found more new issues than solutions
sadly. Specially a broken video process ( see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1019415/comments/5)
not existing previously, so might be a regression introduce by some
upgrades (all genuine).

But now i get an issue i never seen or heard before. Following the howto
chroot (https://help.ubuntu.com/community/Grub2/Installing#ChRoot), and
then wanted to reinstall grub as indicated, i've got a huge surprise:

grub installer print the error:

/usr/sbin/grub-bios-setup: warning: file system 'ext2' doesn't support
embedding. .....

I cant believe than an ext4 partition is recognised now as ext2; but
that explain all the errors posted into the duplicated reports.

So now we have to find which upgrade have been broken the partition(s)
(i still need to check the other partitions but i suppose i will get the
same reason).

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https://bugs.launchpad.net/bugs/1050774

Title:
  grub-script-check assert failure: *** glibc detected *** /usr/bin
  /grub-script-check: double free or corruption (!prev): 0x08210b38 ***

Status in “grub2” package in Ubuntu:
  Triaged

Bug description:
  Lubuntu Quantal i386

  Yesterday i've tested grub 2.0 fromm the cjwatson ppa without issue.
  Then i've ran vbeinfo on next boot to fill custom values :
  GRUB_GFXMODE=1024x768,800x600

   Today the new 2.00-3ubuntu1 is upgraded and get that problem. Note
  that ubuntu quantal i386 have been previously upgraded with this
  latest grub 2.0 without that issue.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: grub-common 2.00-3ubuntu1
  Uname: Linux 3.6.0-030600rc5-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.5.1-0ubuntu7
  Architecture: i386
  AssertionMessage: *** glibc detected *** /usr/bin/grub-script-check: double free or corruption (!prev): 0x08210b38 ***
  Date: Fri Sep 14 09:06:51 2012
  ExecutablePath: /usr/bin/grub-script-check
  ProcCmdline: /usr/bin/grub-script-check /boot/grub/grub.cfg.new
  Signal: 6
  SourcePackage: grub2
  StacktraceTop:
   __libc_message (do_abort=2, fmt=0xb77271dc "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
   malloc_printerr (action=<optimized out>, str=<optimized out>, ptr=0x8210b38) at malloc.c:5007
   ?? ()
   ?? ()
   ?? ()
  Title: grub-script-check assert failure: *** glibc detected *** /usr/bin/grub-script-check: double free or corruption (!prev): 0x08210b38 ***
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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