New: Boot process stuck at "GRUB loading.." since 2021.02.1
https://bugs.busybox.net/show_bug.cgi?id=14281
Bug ID: 14281
Summary: Boot process stuck at "GRUB loading.." since 2021.02.1
Product: buildroot
Version: 2021.02.5
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]Target Milestone: ---
The following used to work until including Buildroot 2021.02, i.e. the resulting image used to boot normally. Ever since Buildroot 2021.02.1, the resulting image does not boot any more - the boot process either gets stuck right after displaying "GRUB loading..", or it reboots at that point, leading to an infinite boot loop. More specifically, this problem exists since the following commit:
e840f2d469 boot/grub2: Backport 2021/03/02 securify fixes
Here's what I'm doing:
1. Run Buildroot to create a root partition image (my_defconfig attached).
2. Create a GRUB image like this (grub_early.cfg attached):
/path/to/buildroot-sdk/host/bin/grub-mkimage --config=grub_early.cfg --directory=/path/to/buildroot-sdk/host/lib/grub/i386-pc -o ./genimage_input_tmp/grub_core.img --format=i386-pc --prefix==/boot/grub biosdisk part_msdos ext2 normal linux configfile
3. Create a home partition image like this:
MKE2FS_CONFIG=/path/to/buildroot-sdk/host/etc/mke2fs.conf /path/to/buildroot-sdk/host/sbin/mke2fs -d home_partition_prep/home -j -L home -t ext3 -U random -b 4096 ./genimage_input_tmp/home.ext3 25M
4. Create a disk image like this (genimage.cfg attached):
/path/to/buildroot-sdk/host/bin/genimage --loglevel=1 --config=genimage.cfg --inputpath=./genimage_input_tmp --outputpath=images --rootpath=home_partition_prep --tmppath=./genimage_tmp --tune2fs=/path/to/buildroot-sdk/host/usr/sbin/tune2fs --e2fsck=/path/to/buildroot-sdk/host/usr/sbin/e2fsck
(Note that I had also previously raised this issue on the Buildroot mailing list - see
http://lists.busybox.net/pipermail/buildroot/2021-October/625323.html.)
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #1 from Stefan Walter <[email protected]> --- Created attachment 9121
--> https://bugs.busybox.net/attachment.cgi?id=9121&action=edit
Buildroot configuration
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #2 from Stefan Walter <[email protected]> --- Created attachment 9126
--> https://bugs.busybox.net/attachment.cgi?id=9126&action=edit
GRUB configuration
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #3 from Stefan Walter <[email protected]> --- Created attachment 9131
--> https://bugs.busybox.net/attachment.cgi?id=9131&action=edit
genimage configuration
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #4 from Thomas Petazzoni <[email protected]> --- When you say "The following used to work until including Buildroot 2021.02", could you clarify which version of Buildroot works for you ? 2020.11 is working ?
If so, could you take 2021.02, and try to downgrade the version of gcc and/or binutils ? Buildroot offers the choice of 3 versions for gcc and binutils: X-1, X and X+1, where X is the default. Could you try to use X-1 for gcc, and X-1 for binutils, and see if it improves the situation ?
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #5 from Stefan Walter <[email protected]> --- No problem:
- Version 2020.02.11 works
- Version 2021.02 works
- Version 2021.02.1 does not work
I could try using other GCC versions, and had actually already started doing that, but the hint given at
http://lists.busybox.net/pipermail/buildroot/2021-October/626296.html revealed that using the GRUB image in build/grub2-2.04/grub-core instead of the one in host/lib/grub/i386-pc helps. I can confirm that I get a booting image with that.
So, as mentioned by Peter in that e-mail, it looks like a problem with host-grub2...?
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #6 from Stefan Walter <[email protected]> --- I'll attach the patch that Peter sent in
http://lists.busybox.net/pipermail/buildroot/2021-October/626342.html to this issue for the sake of completeness. I can confirm that, with the patch applied to the head of the 2021.02.x branch (241a7c6fe7 in my case), I get a booting image again. It would be great to have this in 2021.02.7.
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
--- Comment #7 from Stefan Walter <[email protected]> --- Created attachment 9136
--> https://bugs.busybox.net/attachment.cgi?id=9136&action=edit
host-grub2.patch
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[Buildroot] [Bug 14281] Boot process stuck at "GRUB loading.." since 2021.02.1
In reply to [email protected]https://bugs.busybox.net/show_bug.cgi?id=14281
Yann E. MORIN <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |[email protected]
Resolution|--- |MOVED--- Comment #8 from Yann E. MORIN <[email protected]> --- Thank you for your report.
The issue tracker for the Buildroot project has been moved to the Gitlab.com issue tracker:
https://gitlab.com/buildroot.org/buildroot/-/issues
We are taking this opportunity to close old issues in this old tracker. If you believe your issue is still relevant, please open one in the new issue tracker.
Thank you!
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