Forum archive
Turnkey Server Error Being Reported - Grub
Not sure what this error is, but its being reported on all my Turnkey - Wordpress servers.
Any ideas?
Thanks,
Brian
CRON-APT RUN [/etc/cron-apt/config]: Tue May 18 15:56:01 UTC 2021 CRON-APT SLEEP: 2555, Tue May 18 16:38:36 UTC 2021 CRON-APT ACTION: 5-install CRON-APT LINE: /usr/bin/apt-get -o quiet=1 dist-upgrade -q -y -o APT::Get::Show-Upgraded=true -o Dir::Etc::sourcelist=/etc/apt/sources.list.d/security.sources.list -o Dir::Etc::sourceparts=nonexistent -o DPkg::Options::=--force-confdef -o DPkg::Options::=--force-confold Setting up grub-pc (2.02+dfsg1-20+deb10u4) ...
You must correct your GRUB install devices before proceeding:
DEBIAN_FRONTEND=dialog dpkg --configure grub-pc
dpkg --configure -a
dpkg: error processing package grub-pc (--configure):
installed grub-pc package post-installation script subprocess returned error exit status 1 Errors were encountered while processing:
grub-pc
E: Sub-process /usr/bin/dpkg returned an error code (1)
Replies (4)
It's a known issue - please see the blog post
Reply 1Did you install grub to /dev/sda?
Reply 2It's weird that you are still experiencing this issue after following the fix instructions?! All I can recommend is re-running this command:
dpkg-reconfigure grub-pc
Just select OK for any/all questions until you get to the "GRUB install locations" screen (as per below).
Be sure to select "/dev/sda" (use tab key to switch focus, up/down arrows to select the /dev/sda line and spacebar to allow grub to be installed to it).
Hmm, that's a different message to any I saw when testing?
Reply 3Hmm, that's a different message to any I saw when testing?
Having said that, /dev/sda1 is a partition and it really only needs to be installed to the boot disk (not partitions). IIRC you are running a VM, right? So unless you've added a disk, you should only have one disk and it should be /dev/sda. As the only disk, it has to be your boot disk! :)
Assuming above, it should be fine, so long as it's installed to /dev/sda (i.e. the disk /dev/sda, not the partition /dev/sda1). You should be safe to just jump to the 'grub-install' line below, but if you want to be sure, then double check that /dev/sda is your only disk:
fdisk -l | grep '^Disk /dev/sd'
On a machine I have handy that has a 20 GB root volume and no other disks I get:
Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors
Assuming you only get one line that looks somewhat similar to that, then you are all good.
Now (re)install grub to /dev/sda:
grub-install /dev/sda
That should output this (it will use the i386-pc module even on an amd64 machine):
Installing for i386-pc platform. Installation finished. No error reported.
You shouldn't need to update it as well, but just to be sure, feel free to also run:
update-grub
This will list any/all kernels that are installed, so something like this (my example is v16.x with just the latest kernel, your list may be longer):
Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.19.0-16-amd64 Found initrd image: /boot/initrd.img-4.19.0-16-amd64 done
Doesn't seem to work
Reply 4I tried what was in the other Post, but it reported this:
GRUB failed to install to the following devices:
/dev/sda1
Do you want to continue anyway? If you do, your computer may not start
up properly.
Writing GRUB to boot device failed — continue?
It's a known issue - please see the blog post for more info and how to resolve.
If you have any problems with that or anything is unclear, please post back and I'll clarify.