zram-config has a missing dependency on linux-modules-extra-xxxx-generic

[Martin Wolf]

I am running a virtual sever at Hetzner who provides a very slim preconfigured installation.

zram-config was not installed so I ran

```
apt install zram-config
```
which installed it without any dependencies.

after I started the service with
```
systemctl start zram-config.service
```
I got the following error message in journal:

```
Sep 07 10:53:00 Valheim-Server systemd[1]: Starting Initializes zram swaping...
Sep 07 10:53:00 Valheim-Server init-zram-swapping[747]: modprobe: FATAL: Module zram not found in directory /lib/modules/5.15.0-83-generic
Sep 07 10:53:00 Valheim-Server init-zram-swapping[745]: /usr/bin/init-zram-swapping: 10: cannot create /sys/block/zram0/disksize: Directory nonexistent
Sep 07 10:53:00 Valheim-Server init-zram-swapping[756]: mkswap: cannot open /dev/zram0: No such file or directory
Sep 07 10:53:00 Valheim-Server init-zram-swapping[758]: swapon: cannot open /dev/zram0: No such file or directory
```

I tried to locate zram.ko, but it was missing, so I tried to find out with
```
dkpg -S zram.ko
```
which package contained it: linux-modules-extra-5.15.0-83-generic

After I manually installed that specific package, zram started working with
```
systemctl restart zram-config.service
```

I know, this might be a corner-case, but I found at least two other posts with the same problem in a very short time.

Now my question. Would it be possible to add linux-modules-extra-xxxx-generic as a dependency zo zram-config, since it is not useable without it?

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-83-generic 5.15.0-83.92
ProcVersionSignature: Ubuntu 5.15.0-83.92-generic 5.15.116
Uname: Linux 5.15.0-83-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Sep 7 10:52 seq
 crw-rw---- 1 root audio 116, 33 Sep 7 10:52 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
CasperMD5CheckResult: unknown
CloudArchitecture: x86_64
CloudID: hetzner
CloudName: hetzner
CloudPlatform: hetzner
CloudSubPlatform: metadata (http://169.254.169.254/hetzner/v1/metadata)
Date: Thu Sep 7 11:15:24 2023
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
     |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 480M
MachineType: Hetzner vServer
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 virtio_gpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-83-generic root=UUID=35547664-ba55-4fc4-8762-754c30e132f0 ro consoleblank=0 systemd.show_status=true console=tty1 console=ttyS0
RelatedPackageVersions:
 linux-restricted-modules-5.15.0-83-generic N/A
 linux-backports-modules-5.15.0-83-generic N/A
 linux-firmware 20220329.git681281e4-0ubuntu3.18
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/11/2017
dmi.bios.release: 1.0
dmi.bios.vendor: Hetzner
dmi.bios.version: 20171111
dmi.board.name: Standard PC (Q35 + ICH9, 2009)
dmi.board.vendor: KVM
dmi.board.version: pc-q35-6.2
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: NotSpecified
dmi.modalias: dmi:bvnHetzner:bvr20171111:bd11/11/2017:br1.0:svnHetzner:pnvServer:pvr20171111:rvnKVM:rnStandardPC(Q35+ICH9,2009):rvrpc-q35-6.2:cvnQEMU:ct1:cvrNotSpecified:skuTM:
dmi.product.family: Hetzner_vServer
dmi.product.name: vServer
dmi.product.sku: TM
dmi.product.version: 20171111
dmi.sys.vendor: Hetzner

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.