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Martin Hope
kstn
Asked: 2024-07-09 14:04:19 +0800 CST
  • 5

I have installed kvm using

> sudo apt install qemu-kvm

However, it selects other package instead

Note, selecting 'qemu-system-x86' instead of 'qemu-kvm'

After installing, I check if /dev/kvm exists by

> sudo kvm-ok
INFO: /dev/kvm does not exist
HINT:   sudo modprobe kvm_intel
INFO: Your CPU supports KVM extensions
KVM acceleration can be used

What could go wrong? The system is ubuntu 22.04.

22.04
Martin Hope
kstn
Asked: 2022-07-02 02:06:51 +0800 CST
  • 0

I suddenly accessed and saw almost subfolders in my /opt folder changes to systemd-coredump for ownership and group. Why is it so and is it safe to change back everything to my username?

drwxr-xr-x  9 systemd-coredump systemd-coredump 4096 Jun 24  2021 pdfstudioviewer2021
drwxr-xr-x  7 systemd-coredump systemd-coredump 4096 Jun 27  2021 petsc-3.15.1_ompi-3.0.1
drwxr-xr-x  6 systemd-coredump systemd-coredump 4096 Jun 28  2021 proj-6.3.2
drwxr-xr-x  4 systemd-coredump systemd-coredump 4096 Okt 29  2021 pybind11-2.6.2
drwxr-xr-x  4 systemd-coredump systemd-coredump 4096 Jun 28  2021 qhull
systemd-coredump
Martin Hope
kstn
Asked: 2021-06-28 02:54:51 +0800 CST
  • 1

I'm stuck mounting an SSD, which is pre-formatted as ext4, via SATA to USB cable. However it gives the error:

mount: wrong fs type, bad option, bad superblock on /dev/sdc,
   missing codepage or helper program, or other error
   In some cases useful info is found in syslog - try
   dmesg | tail  or so

This problem does not happen when plugging the SSD directly to the drive bay of the laptop. The problem is also not the cable, because it can mount a HDD formatted as FAT32.

mount