This is on Ubuntu Server 20.04 - headless.
Checked dmesg this morning and this is the output:
This goes back more than 24 hours. Basically, the dmesg buffer is filled with the above. None of the above partitions are mounted, although 2 of them are in fstab (but noauto).
The drives and partitions:
I don't think it matters, but here's the file system info of the drive in question:
As a test I mounted sdc3 and sdc4 and the messages stopped. So it seems to be something scanning the system for drives but only if none of the partitions are mounted. Oddly, sdb is not mounted and it is not listed. However it is also not partitioned so it appears to be a partition table scan.
This doesn't seem harmful except that it wipes out meaningful info in dmesg and it's totally useless.
Anyone have an idea what is doing this and how to turn it off?
Checked dmesg this morning and this is the output:
[Tue Jan 17 08:02:07 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:07:09 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:12:10 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:17:12 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:22:14 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:07:09 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:12:10 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:17:12 2023] sdc: sdc1 sdc2 sdc3 sdc4
[Tue Jan 17 08:22:14 2023] sdc: sdc1 sdc2 sdc3 sdc4
The drives and partitions:
/dev/sdb btrfs backup2 (not mounted)
/dev/sda btrfs pool (in use)
/dev/sdc1 (not mounted)
/dev/sdc2 swap (not mounted)
/dev/sdc3 install1 (not mounted)
/dev/sdc4 backup (not mounted)
/dev/sdd1 (not mounted)
/dev/sdd2 btrfs install (in use)
/dev/sdd3 swap [SWAP]
/dev/sda btrfs pool (in use)
/dev/sdc1 (not mounted)
/dev/sdc2 swap (not mounted)
/dev/sdc3 install1 (not mounted)
/dev/sdc4 backup (not mounted)
/dev/sdd1 (not mounted)
/dev/sdd2 btrfs install (in use)
/dev/sdd3 swap [SWAP]
/dev/sdc1 BIOS boot
/dev/sdc2 swap
/dev/sdc3 btrfs
/dev/sdc4 btrfs
/dev/sdc2 swap
/dev/sdc3 btrfs
/dev/sdc4 btrfs
This doesn't seem harmful except that it wipes out meaningful info in dmesg and it's totally useless.
Anyone have an idea what is doing this and how to turn it off?
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