rebuild_dkms_packages.sh script fails

[tony37]

I see a problem: there are different packages called 'linux-image-amd64', so when someone has the Debian Backports repo enabled (like me, though I rarely install something from it), then

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apt-cache show linux-image-amd64 |grep -m1 Depends

will result in "linux-image-5.8.0-0.bpo.2-amd64 (= 5.8.10-1~bpo10+1)". For some reason the appended "(= 5.8.10-1~bpo10+1)" doesn't cause problems, but anyway: when I install the 4.19 meta-package I get this:

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update dkms modules for kernel:  5.8.0-0.bpo.2-amd64
see log at /var/log/rebuild-dkms.log
dkms: running auto installation service for kernel 5.8.0-0.bpo.2-amd64:Error! echo
Your kernel headers for kernel 5.8.0-0.bpo.2-amd64 cannot be found at
/lib/modules/5.8.0-0.bpo.2-amd64/build or /lib/modules/5.8.0-0.bpo.2-amd64/source.
Error! echo
Your kernel headers for kernel 5.8.0-0.bpo.2-amd64 cannot be found at
.
/lib/modules/5.8.0-0.bpo.2-amd64/build or /lib/modules/5.8.0-0.bpo.2-amd64/source.

Maybe for the 4.19 kernel you could use

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apt-cache show linux-image-amd64=4.19* |grep -m1 Depends

[dolphin_oracle]

ugh.

this is why I used the dpkg-reconfigure commands in the first place.

got the debian kernels updated...thanks for the help with that case

[tony37]

A more general command would be:

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file=$(apt-cache show linux-image-amd64=$(dpkg-query -W linux-image-amd64 |awk '{print $2}') |grep -m1 Depends) 

It will find the version of the installed meta-package. Maybe I can find something better still.

[dolphin_oracle]

A more general command would be:

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file=$(apt-cache show linux-image-amd64=$(dpkg-query -W linux-image-amd64 |awk '{print $2}') |grep -m1 Depends) 

It will find the version of the installed meta-package. Maybe I can find something better still.

I don't understand why the dpkg-query test is past for a kernel that isn't installed. it should have exited without doing anything in that case. still wrong, but less wrong.

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[[ $(dpkg-query --show $1 2>/dev/null && echo $?) ]] || exit 0

[tony37]

A more general command would be:

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file=$(apt-cache show linux-image-amd64=$(dpkg-query -W linux-image-amd64 |awk '{print $2}') |grep -m1 Depends) 

It will find the version of the installed meta-package. Maybe I can find something better still.

I don't understand why the dpkg-query test is past for a kernel that isn't installed.

remaining configuration files?

[dolphin_oracle]

I think its because I'm stupid.

the echo succeeds, so the statement is true no matter if the dpkg-query works or not. that should be easy to fix.

[dolphin_oracle]

I think its because I'm stupid.

the echo succeeds, so the statement is true no matter if the dpkg-query works or not. that should be easy to fix.

nope that's not it.

did you have the debian backports kernel installed at some point?

[dolphin_oracle]

dpkg-query --status

is the command we want. the "--show" will pass if a package has been installed but later removed.

[dolphin_oracle]

haven't packaged yet, but here's the code.

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#!/bin/bash

#force rebuild of dkms packages (virtualbox, nvidia, fglrx, broadcom, ndiswrapper)
#part of mx-packageinstaller

kernel="$1"

# if parameter passed, then check to see if package is installed, exit if not
if [ -n "$kernel" ]; then
	[[ $(dpkg-query --status $1 2>/dev/null ) ]] || exit 0
fi	

#if no kernel parameter given, assume current kernel
if [ -z "$kernel" ]; then
	kernel="$(uname -r)"
fi

kernel=${kernel#"linux-image-"}
kernel=${kernel%-unsigned}

echo "update dkms modules for kernel: " $kernel |tee /var/log/rebuild-dkms.log
echo "see log at /var/log/rebuild-dkms.log"

/usr/lib/dkms/dkms_autoinstaller start $kernel |tee -a /var/log/rebuild-dkms.log

exit 0

[tony37]

"dpkg-query --status" also gives output for packages with remaining configuration files:

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Status: deinstall ok config-files