In my case i see:
~$ sudo lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 367,3M 1 loop /snap/clion/69 loop1 7:1 0 44M 1 loop /snap/ffmpeg/206 loop2 7:2 0 14,8M 1 loop /snap/gnome-characters/258 loop3 7:3 0 141,8M 1 loop /snap/skype/60 loop4 7:4 0 14,8M 1 loop /snap/gnome-characters/206 loop5 7:5 0 518M 1 loop /snap/libreoffice/117 loop6 7:6 0 45,4M 1 loop /snap/ffmpeg/403 loop7 7:7 0 134,3M 1 loop /snap/icq-im/21 loop8 7:8 0 53,7M 1 loop /snap/core18/941 loop9 7:9 0 169,4M 1 loop /snap/gimp/113 loop10 7:10 0 154,6M 1 loop /snap/chromium/705 loop11 7:11 0 225,1M 1 loop /snap/webstorm/90 loop12 7:12 0 3,7M 1 loop /snap/gnome-system-monitor/77 loop13 7:13 0 372M 1 loop /snap/pycharm-professional/125 loop14 7:14 0 150,2M 1 loop /snap/opera/35 loop15 7:15 0 91,1M 1 loop /snap/core/6531 loop16 7:16 0 127M 1 loop /snap/code/6 loop17 7:17 0 222,2M 1 loop /snap/webstorm/86 loop18 7:18 0 456,4M 1 loop /snap/wine-platform/128 loop19 7:19 0 218,1M 1 loop /snap/gimp/130 loop20 7:20 0 300,4M 1 loop /snap/datagrip/45 loop21 7:21 0 151M 1 loop /snap/gnome- ... loop84 7:84 0 53,7M 1 loop /snap/core18/731 loop85 7:85 0 140,7M 1 loop /snap/gnome-3-26-1604/74 loop86 7:86 0 150,2M 1 loop /snap/opera/36 loop87 7:87 0 368M 1 loop /snap/clion/70 sda 8:0 0 931,5G 0 disk ├─sda1 8:1 0 80G 0 part ├─sda2 8:2 0 68G 0 part └─sda4 8:4 0 783,5G 0 part ... nvme0n1 259:0 0 238,5G 0 disk ├─nvme0n1p1 259:1 0 512M 0 part /boot/efi ├─nvme0n1p2 259:2 0 732M 0 part /boot └─nvme0n1p3 259:3 0 237,3G 0 part └─nvme0n1p3_crypt 253:0 0 237,3G 0 crypt ├─ubuntu--vg-root 253:1 0 236,3G 0 lvm / └─ubuntu--vg-swap_1 253:2 0 976M 0 lvm [SWAP] But useful for me is physical disks like sda*, nvme*..
Is it possible with some params temporary hide loop* virtual devices? Or recommend me please another command for watch my devices.
2 Answers
Since the major node type of a loop block device is 7 (as shown in /proc/devices), you can use the -e or --exclude command line switch to exclude them by major type:
-e, --exclude list Exclude the devices specified by the comma-separated list of major device numbers. Note that RAM disks (major=1) are excluded by default. The filter is applied to the top-level devices only.
Ex.
$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop1 7:1 0 17.9M 1 loop /snap/pdftk/1 loop2 7:2 0 89.3M 1 loop /snap/core/6673 loop3 7:3 0 91.1M 1 loop /snap/core/6531 loop4 7:4 0 20K 1 loop /snap/hello-world/27 loop5 7:5 0 50.7M 1 loop /snap/p7zip-desktop/163 loop6 7:6 0 20K 1 loop /snap/hello-world/29 loop7 7:7 0 17.9M 1 loop /snap/pdftk/9 loop8 7:8 0 89.4M 1 loop /snap/core/6818 sda 8:0 0 238.5G 0 disk ├─sda1 8:1 0 9.8G 0 part ├─sda2 8:2 0 164.7G 0 part ├─sda3 8:3 0 31.1G 0 part / ├─sda4 8:4 0 1K 0 part ├─sda5 8:5 0 15.3G 0 part /usr/local └─sda6 8:6 0 17.7G 0 part /home sr0 11:0 1 1024M 0 rom but
$ lsblk -e7 NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 238.5G 0 disk ├─sda1 8:1 0 9.8G 0 part ├─sda2 8:2 0 164.7G 0 part ├─sda3 8:3 0 31.1G 0 part / ├─sda4 8:4 0 1K 0 part ├─sda5 8:5 0 15.3G 0 part /usr/local └─sda6 8:6 0 17.7G 0 part /home sr0 11:0 1 1024M 0 rom You could use grep to filter the output:
lsblk | grep -v '^loop' This will remove lines that start with loop.
