Forum archive
Fixing GRUB install
Hi All
I wonder if anyone can help fix a GRUB install on a Wordpress install. I'm not sure if the issue was first made as a result of the original install? Here is the error message:
CRON-APT RUN [/etc/cron-apt/config]: Thu Dec 1 14:30:01 UTC 2022
CRON-APT SLEEP: 1617, Thu Dec 1 14:56:58 UTC 2022
CRON-APT ACTION: 5-install
CRON-APT LINE: /usr/bin/apt-get -o quiet=1 autoclean -y
Reading package lists...
Building dependency tree...
Reading state information...
CRON-APT LINE: /usr/bin/apt-get -o quiet=1 dist-upgrade -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
Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...
The following package was automatically installed and is no longer required:
linux-image-4.19.0-14-amd64
Use 'apt autoremove' to remove it.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up grub-pc (2.06-3~deb10u2) ...
Installing for i386-pc platform.
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13289: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13289: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13289: grub-install
grub-install: error: unable to identify a filesystem in hostdisk//dev/sda; safety check can't be performed.
Installing for i386-pc platform.
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13307: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13307: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13307: grub-install
Installation finished. No error reported.
Installing for i386-pc platform.
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13323: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13323: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13323: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13323: grub-install
File descriptor 3 (pipe:[9529405]) leaked on vgs invocation. Parent PID 13323: grub-install
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: diskfilter writes are not supported.
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)
Thanks all for the great work!
Donald
Replies (3)
Hi Donald, try manually installing it
Reply 1Sounds like a good outcome in the end.
Reply 2Please do not hesitate to share further details in future if you have a similar issue. I'm sure we could have worked through them if you share them next time something similar happens.
Regardless, if there aren't any technical reasons and you aren't already in production, using a newer appliance version will almost always be the best option. Glad to hear that it's working for you so far.
Good luck with it all and please do not hesitate to ask if you have further questions and/or hit more issues.
Hi Jeremy - no joy
Reply 3Hi Jeremy
Thanks for the reply and suggestion but unfortunately I encountered more errors (which I never copied down properly).
As the site hadn't gone fully live we took the decision to move to the latest V17.1 build which worked out the better option anyway.
Thanks for your help and keep up the good work.
Best Regards
Donald
It seems that there is something not quite right with your grub config so the system can't automatically configure it. So it's trying to force an interactive install. But the auto security updates don't allow that, so the install fails.
Please try manually installing grub:
It will ask where you want to install grub. Assuming that it's a fairly standard install - with only one single "physical" disk (virtualized or otherwise), then you'll want to install grub to '/dev/sda' (note devices with trailing digits are partitions - whilst it won't do any harm, there is no value installing grub there). It should give you options to install to, so just select the appropriate device. Note that under some virtualisation platforms, the device naming may be slightly different (e.g. under Xen the first drive is usually '/dev/xvda' - I think '/dev/vda' is another possibly).
If you want to be 100% sure, please run this command:
On an AWS server, it returns: