grub_calloc issue

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grub_calloc issue

Postby freespirit » 2020-07-30 14:56

Hi, i'm suffering this issue
https://askubuntu.com/questions/1263125 ... -not-found
i'm not a technical guy, but i've tryed to boot a live cd and perform a boot-repair but doesn't work, fortunatly i have a system image, and i restore it, do you think this issue will be solved? How can i track it, because i will not do system update till that day
There is any noob friendly solution i can do it?

edit: running debian stable
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Re: grub_calloc issue

Postby shep » 2020-07-30 18:09

This update also broke my Debian10/OpenBSD uefi dual boot setup. There seems to be a number of issues with the update and I would like to roll it back. Unfortunately, I'm not having much luck with searches on how to roll back.

May look into grub 2.04 in backports.

Edit: Debian 10 backports does not have a grub update.
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Re: grub_calloc issue

Postby Head_on_a_Stick » 2020-07-30 18:22

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Re: grub_calloc issue

Postby freespirit » 2020-07-30 19:07

I got this error

grub-install: warning: File system `ext2' doesn't support embedding.
grub-install: warning: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and their use is discouraged..
grub-install: error: will not proceed with blocklists.
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Re: grub_calloc issue

Postby Head_on_a_Stick » 2020-07-30 19:12

Install to the device, not the partition.
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Re: grub_calloc issue

Postby freespirit » 2020-07-30 19:26

Thank you very much it worked
I have other 2 debian system i need to fix but they are in a different state

the first one is rolled back so it's running with an older version, there is a way to fix it before fail into the issue and have to fix it with a live cd?

the second one is a small headless server that already updated with the latest grub, but still running because i did not rebooted, any way to fix this too before the reboot?

Thank you again for the help it's the whole day i'm trying to solve this
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Re: grub_calloc issue

Postby freespirit » 2020-07-31 09:04

My main system where i was thinkibg to disabled the auto updated, it updated, so i have done the live fix bit when reboot it goes in a normal grub bash. What can i do?
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Re: grub_calloc issue

Postby p.H » 2020-07-31 09:25

"symbol not found" may be caused by a version mismatch between GRUB core image and GRUB modules installed in /boot/grub/.
It may happen when GRUB modules were updated but the GRUB core image which is loaded at boot was not updated, either because the update process failed or it updated the core image in a different location.

The report generated by bootinfoscript (from the package boot-info-script) may help finding where GRUB is installed.
Code: Select all
debconf-show grub-pc | grep install

shows where the boot and core image are to be installed on GRUB package update. If the location is wrong, you should reconfigure the package with
Code: Select all
dpkg-reconfigure grub-pc
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Re: grub_calloc issue

Postby freespirit » 2020-07-31 09:52

On one pc the solution providwd by head on a stick worked like a charm, now on my main workstation doesnt work, instead to have the calloc issue i just boot in a grub shell.
My main pc is encrypted with luks, but the boot partition is not i dont know if this matter, i hope you can help me because i'm stuck
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Re: grub_calloc issue

Postby freespirit » 2020-07-31 10:17

Now on my workstation seem boot repair fixed it. I hope debian devs will fix this issue because it's really a severe bug, and manage it in a headless server it's even worse
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Re: grub_calloc issue

Postby shep » 2020-07-31 14:12

July 31, 2020 there was a second grub 2.02 update, 2.02+dfsg1-20+deb10u2, that fixed my dual boot issue.
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Re: grub_calloc issue

Postby freespirit » 2020-08-01 16:22

shep wrote:July 31, 2020 there was a second grub 2.02 update, 2.02+dfsg1-20+deb10u2, that fixed my dual boot issue.


I just updated another machine and the latest grub didn't fixed this issue, i had to fix it with boot repair

pretty scared now to reboot my server, i don't know if for debian devs this is an issue they are working on, or not. Any way to know it?
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Re: grub_calloc issue

Postby Head_on_a_Stick » 2020-08-01 17:17

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Re: grub_calloc issue

Postby cuckooflew » 2020-08-01 17:23

i don't know if for debian devs this is an issue they are working on, or not. Any way to know it?

Yes there are several ways to stay informed about which bugs the developers are working on, Check recent bug reports, Ask on the mail list, some developers do use that. Some search foo, or just browse the Debian.org website, you will see links to the mail lists, also , where developers discuss bugs, etc. There are several threads on this forum where me or someone else posted detailed instructions and links to the bug report process, etc.
https://wiki.debian.org/FAQsFromDebianUser
--partial quote-- Why should I post to this list? I want to ask the developer/post to debian-devel/file a bug.

Of course, you are free to do this. Almost all debian lists (including debian-devel) are open for anyone to post and Debian encourages users to file bugs in the Debian Bug Tracking System (BTS). BUT, please consider the following points first:

Make 100% sure your problem needs direct attention of developers.

Remember, Debian is created by volunteers in their spare time. Distracting them with other problems will leave less time to do actual work, like solving known bugs, package new versions of software we are all waiting for, packaging software not yet present in Debian and improving or creating Debian specific software. Even if you know you have a really difficult problem, debian-user is read by some very knowledgeable people (including some Debian developers), and they might have a solution for your problem.

Some problems are caused just by misconfiguration.

Sometimes even the most experienced people can do stupid things. Having other people look over your problem may help.

Make sure your problem is not known.

That means you should search the archives of debian-user (or other relevant lists) and especially the BTS. Chances are somebody else has experienced the same (or similar) problem and workarounds may be known. Even if you searched thoroughly, you should post to debian-user first (stating what you already tried/researched).


H_O_A_S posted a link while I am writing, be sure to read that, before doing anything else.
Please Read What we expect you have already Done
Search Engines know a lot, and
"If God had wanted computers to work all the time, He wouldn't have invented RESET buttons"
and
Just say NO to help vampires!
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Re: grub_calloc issue

Postby quixote » 2020-08-02 01:27

This is not an RTFM situation. A massive bug has been introduced trying to fix a vulnerability, and what we need right now is a fix.

Something along these lines: https://wiki.ubuntu.com/SecurityTeam/Kn ... r_recovery

or possibly these: https://arstechnica.com/gadgets/2020/07 ... e-patches/

but for debian. Somehow, I'm betting I can't just copy and paste :P

I saw the warnings go by saying the system was likely to be unbootable, so I haven't rebooted and I'm luckier than some in that I'm not dead in the water. But it would be nice not to have to live in fear of a system crash.

I realize any fix means the grub vulnerability is still there. I can live with that for now. I can't live without access to my computer since I have some legal issues going on and the world will end if I can't access relevant files.

Fix? Pleeeeeeeeeeease?

Edit: I know there's a fix here: https://bugs.debian.org/cgi-bin/bugrepo ... bug=966554 however it's not straightforward for those of us who need step-by-steps. Judging from that thread, at some point a fix is due to appear in our regular updates, but it's not there yet. Until it is, a step-by-step from the smart ones here that tells us how to apply it would really help!
Last edited by quixote on 2020-08-02 01:52, edited 1 time in total.
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