Arch Linux

Skilowi

Member

Registered: 2025-08-03

Posts: 8

Website

[SOLVED] Missing Kernel modules

Hello. I have an old Floppy Drive on USB. I want to format floppy trough it and copy files on it.
When I try to access it trough Thunar I get an error:

Error mounting /dev/sdb at /run/media/skilowi/disk: can't read superblock on /dev/sdb.

So I went to read manual: https://wiki.archlinux.org/title/Floppy_disks

while using ufiformat I get error:

/dev/sg* family: No such file or directory

I am stuck on modprobing the "sg" module. Cant find it in my /lib/modules directory.
After I bit googling I assume its "SCSI Generic driver". I installed "sg3_utils" with pacman but still module is not found. Cant see any related packages to this. What must I do to get this module? Is it fault of kernel?

My Kernel:
6.15.8-zen1-2-zen

Last edited by Skilowi (2025-08-03 22:28:28)

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Moron from Poland necromancing old ThinkPads and Computers.
I also learn Mechatronics.

dimich

Member

From: Kharkiv, Ukraine

Registered: 2009-11-03

Posts: 428

Re: [SOLVED] Missing Kernel modules

Is your running kernel the same as installed?

$ uname -r
$ ls -ld /usr/lib/modules/*
$ modinfo sg

?

Skilowi

Member

Registered: 2025-08-03

Posts: 8

Website

Re: [SOLVED] Missing Kernel modules

I rebooted, uname -r returned:

6.15.9-zen1-1-zen

ls returned:

drwxr-xr-x 6 root root 4096 08-03 20:43 /usr/lib/modules/6.15.9-zen1-1-zen

modinfo sg:

filename:       /lib/modules/6.15.9-zen1-1-zen/kernel/drivers/scsi/sg.ko.zst
alias:          char-major-21-*
version:        3.5.36
license:        GPL
description:    SCSI generic (sg) driver
author:         Douglas Gilbert
srcversion:     6A866213DA46B09988D819F
depends:        
intree:         Y
name:           sg
retpoline:      Y
vermagic:       6.15.9-zen1-1-zen SMP preempt mod_unload 
sig_id:         PKCS#7
signer:         Build time autogenerated kernel key
sig_key:        0F:AD:C5:D7:8C:CF:C4:3E:F8:E7:C8:9C:43:E0:DF:E0:2E:CC:DF:AC
sig_hashalgo:   sha512
signature:      30:64:02:30:47:16:CE:FA:96:63:F5:13:6C:07:10:50:2A:E2:54:03:
		71:EF:C4:52:73:35:90:14:EF:F8:FF:40:BE:55:80:37:28:34:38:C0:
		D5:85:B0:6D:F7:6B:B5:DA:44:1B:0E:08:02:30:4E:5D:41:5E:88:CA:
		46:E4:37:63:50:7D:C0:C1:0A:F5:97:39:08:CB:88:FB:51:32:C7:22:
		3A:14:21:AD:6E:85:77:75:E6:31:D6:E9:CD:DD:DC:C6:3B:7C:F9:AA:
		D7:9B
parm:           scatter_elem_sz:scatter gather element size (default: max(SG_SCATTER_SZ, PAGE_SIZE)) (int)
parm:           def_reserved_size:size of buffer reserved for each fd (int)
parm:           allow_dio:allow direct I/O (default: 0 (disallow)) (int)

I tried modprobing sg this time, it loaded. Sometimes rebooting fixes everything ;-D

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Moron from Poland necromancing old ThinkPads and Computers.
I also learn Mechatronics.

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 70,225

Re: [SOLVED] Missing Kernel modules

Sometimes rebooting fixes everything ;-D

Especially out-of-sync kernels

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

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