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

[dino99]

Hi Colin,
i'm happy you take this issue in consideration. Things are going worst on that desktop mixing 2 pata & 1 sata on which quantal i386 ubuntu & quantal i386 Lubuntu are installed, but also 2 Precise with their different grub version.

Anyway now i cant boot at all:
- wonder why grub install is saying that i absolutly need to set the sdc hdd only to boot from the bios, even each hdd have grub installed on their mbr.
- no matter wich hdd i select to boot on, i only get "alloc magic is broken at ..." , so i'v'e used several time an updated boot-repair script to try fixing it, but no luck.
- so i wonder if the vbeinfo filled on the GRUB_GFXMODE are correctly filled (reading the wiki its ok to set more than one value if separated by a comma). I've chrooted to test other values: only 1024x768 but also 1024x768x32 (valide vbeinfo values)

Will post tomorrow the grub.d tarball when i will use a liveusb quantal.

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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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