Hallo hier mal die Ausgaben:
1. findmnt
christian@christian-ThinkPad-T540p:~$ findmnt
TARGET SOURCE FSTYPE OPTIONS
/ /dev/sda6 ext4 rw,relatime,errors=rem
├─/sys sysfs sysfs rw,nosuid,nodev,noexec
│ ├─/sys/kernel/security securityfs securit rw,nosuid,nodev,noexec
│ ├─/sys/fs/cgroup tmpfs tmpfs ro,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/unified cgroup cgroup2 rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/systemd cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/cpu,cpuacct cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/freezer cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/cpuset cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/blkio cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/net_cls,net_prio cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/memory cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/pids cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/perf_event cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/rdma cgroup cgroup rw,nosuid,nodev,noexec
│ │ ├─/sys/fs/cgroup/hugetlb cgroup cgroup rw,nosuid,nodev,noexec
│ │ └─/sys/fs/cgroup/devices cgroup cgroup rw,nosuid,nodev,noexec
│ ├─/sys/fs/pstore pstore pstore rw,nosuid,nodev,noexec
│ ├─/sys/firmware/efi/efivars efivarfs efivarf rw,nosuid,nodev,noexec
│ ├─/sys/kernel/debug debugfs debugfs rw,relatime
│ ├─/sys/fs/fuse/connections fusectl fusectl rw,relatime
│ └─/sys/kernel/config configfs configf rw,relatime
├─/proc proc proc rw,nosuid,nodev,noexec
│ └─/proc/sys/fs/binfmt_misc systemd-1 autofs rw,relatime,fd=31,pgrp
│ └─/proc/sys/fs/binfmt_misc binfmt_misc binfmt_ rw,relatime
├─/dev udev devtmpf rw,nosuid,relatime,siz
│ ├─/dev/pts devpts devpts rw,nosuid,noexec,relat
│ ├─/dev/shm tmpfs tmpfs rw,nosuid,nodev
│ ├─/dev/mqueue mqueue mqueue rw,relatime
│ └─/dev/hugepages hugetlbfs hugetlb rw,relatime,pagesize=2
├─/run tmpfs tmpfs rw,nosuid,noexec,relat
│ ├─/run/lock tmpfs tmpfs rw,nosuid,nodev,noexec
│ ├─/run/user/121 tmpfs tmpfs rw,nosuid,nodev,relati
│ └─/run/user/1000 tmpfs tmpfs rw,nosuid,nodev,relati
│ └─/run/user/1000/gvfs gvfsd-fuse fuse.gv rw,nosuid,nodev,relati
├─/snap/core/10577 /dev/loop2 squashf ro,nodev,relatime
├─/home /dev/sda7 ext4 rw,relatime
├─/snap/core/10583 /dev/loop3 squashf ro,nodev,relatime
├─/snap/libreoffice/203 /dev/loop4 squashf ro,nodev,relatime
├─/snap/gnome-characters/550 /dev/loop0 squashf ro,nodev,relatime
├─/snap/gnome-logs/100 /dev/loop1 squashf ro,nodev,relatime
├─/snap/gnome-3-28-1804/128 /dev/loop5 squashf ro,nodev,relatime
├─/snap/gnome-3-34-1804/66 /dev/loop6 squashf ro,nodev,relatime
├─/snap/gtk-common-themes/1506 /dev/loop7 squashf ro,nodev,relatime
├─/snap/gnome-3-26-1604/98 /dev/loop8 squashf ro,nodev,relatime
├─/snap/gnome-characters/570 /dev/loop9 squashf ro,nodev,relatime
├─/snap/gnome-3-26-1604/100 /dev/loop10 squashf ro,nodev,relatime
├─/snap/gnome-3-34-1804/60 /dev/loop11 squashf ro,nodev,relatime
├─/snap/gnome-calculator/826 /dev/loop12 squashf ro,nodev,relatime
├─/snap/gtk-common-themes/1514 /dev/loop13 squashf ro,nodev,relatime
├─/snap/gnome-calculator/748 /dev/loop14 squashf ro,nodev,relatime
├─/snap/core18/1932 /dev/loop15 squashf ro,nodev,relatime
├─/snap/gnome-system-monitor/148 /dev/loop16 squashf ro,nodev,relatime
├─/snap/gnome-3-28-1804/145 /dev/loop17 squashf ro,nodev,relatime
├─/snap/gnome-logs/93 /dev/loop18 squashf ro,nodev,relatime
├─/snap/core18/1944 /dev/loop19 squashf ro,nodev,relatime
├─/snap/libreoffice/196 /dev/loop20 squashf ro,nodev,relatime
└─/snap/gnome-system-monitor/145 /dev/loop21 squashf ro,nodev,relatime
2. cat /etc/fstab
christian@christian-ThinkPad-T540p:~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda6 during installation
UUID=09e57727-1253-4794-90cf-11c66bfe11ee / ext4 errors=remount-ro 0 1
# /home was on /dev/sda7 during installation
UUID=40620af8-36b7-4e4b-a3c3-11029b0368f0 /home ext4 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=3afca66b-46f4-4923-8ac0-1b116f0a5f98 none swap sw 0 0
//192.168.178.250/home /media/DS_Home cifs vers=1.0,uid=1000,gid=1000,credentials=/home/christian/.smbcredentials,iocharset=utf8,sec=ntlm 0 0
//192.168.178.250/photo /media/DS_Photo cifs vers=1.0,uid=1000,gid=1000,credentials=/home/christian/.smbcredentials,iocharset=utf8,sec=ntlm 0 0
//192.168.178.250/video /media/DS_Video cifs vers=1.0,uid=1000,gid=1000,credentials=/home/christian/.smbcredentials,iocharset=utf8,sec=ntlm 0 0
//192.168.178.250/music /media/DS_Music cifs vers=1.0,uid=1000,gid=1000,credentials=/home/christian/.smbcredentials,iocharset=utf8,sec=ntlm 0 0
3. [ -d /sys/firmware/efi ] && echo UEFI || echo BIOS
christian@christian-ThinkPad-T540p:~$ [ -d /sys/firmware/efi ] && echo UEFI || echo BIOS
UEFI
4. dpkg -l | grep grub
christian@christian-ThinkPad-T540p:~$ dpkg -l | grep grub
ii grub-common 2.02-2ubuntu8.21 amd64 GRand Unified Bootloader (common files)
ii grub-efi-amd64-bin 2.02-2ubuntu8.21 amd64 GRand Unified Bootloader, version 2 (EFI-AMD64 binaries)
ii grub-efi-amd64-signed 1.93.24+2.02-2ubuntu8.21 amd64 GRand Unified Bootloader, version 2 (EFI-AMD64 version, signed)
ii grub-gfxpayload-lists 0.7 amd64 GRUB gfxpayload blacklist
ii grub-pc 2.02-2ubuntu8.21 amd64 GRand Unified Bootloader, version 2 (PC/BIOS version)
ii grub-pc-bin 2.02-2ubuntu8.21 amd64 GRand Unified Bootloader, version 2 (PC/BIOS binaries)
ii grub2-common 2.02-2ubuntu8.21 amd64 GRand Unified Bootloader (common files for version 2)
Vielen Dank Taomon das Sie sich dem Thema annehmen.
VG
Christian