[Bug 1889509] Re: grub boot error : "symbol 'grub_calloc' not found

[Marin Nedea]

Same bug on Ubuntu 20.04 pro in Azure.
Actions before issue happened:

2020-07-30 00:11:20 status installed grub-common:amd64 2.04-1ubuntu26.1
2020-07-30 00:11:20 status installed grub-efi-amd64-bin:amd64 2.04-1ubuntu26.1
2020-07-30 00:11:20 status installed grub2-common:amd64 2.04-1ubuntu26.1
2020-07-30 00:11:20 status installed grub-pc-bin:amd64 2.04-1ubuntu26.1
2020-07-30 00:11:29 status installed grub-pc:amd64 2.04-1ubuntu26.1
2020-07-30 00:11:32 status installed grub-efi-amd64-signed:amd64 1.142.3+2.04-1ubuntu26.1
2020-07-30 00:11:32 status installed man-db:amd64 2.9.1-1
2020-07-30 00:11:33 status installed install-info:amd64 6.7.0.dfsg.2-5
2020-07-30 00:11:33 status installed systemd:amd64 245.4-4ubuntu3.2

Rebooted machine post update.
Hope this helps narrowing down the issue.


** Attachment added: "picture of issue"
   https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509/+attachment/5397135/+files/Image%20013.png

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https://bugs.launchpad.net/bugs/1889509

Title:
  grub boot error : "symbol 'grub_calloc' not found

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  After updating grub2 (to 2.02~beta2-36ubuntu3.26) and rebooting, my
  server does not boot:

  Booting from Hard Disk 0...
  error: symbol `grub_callow' not found.
  Entering rescue mode...
  grub rescue> _

  I rebooted 3 servers in this way (all running Ubuntu 16.04.6 LTS) and
  all hung.

  A lot of other people are reporting the same problem at:

  https://askubuntu.com/questions/1263125/how-to-fix-a-grub-boot-error-symbol-grub-calloc-not-
  found.

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