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I recently installed a ubuntu-core snap package. And this is the output of lsblk

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    1  14.9G  0 disk 
├─sda1   8:1    1   1.9G  0 part [SWAP]
└─sda2   8:2    1    13G  0 part /
sdb      8:16   0 149.1G  0 disk 
├─sdb1   8:17   0   100M  0 part 
├─sdb2   8:18   0  59.9G  0 part 
└─sdb3   8:19   0    62G  0 part 
sr0     11:0    1  1024M  0 rom  
loop0    7:0    0  64.7M  0 loop /snap/ubuntu-core/109

Is this shown because each snap is sandboxed??

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2 Answers 2

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Each snap (in 16, not in 15.04) is a squashfs file which, when installed, is mounted.

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  • How do I find out if the snap if being currently used
    – Mohit Rajan
    May 16, 2016 at 15:10
  • the one you listed is ubuntu-core; if you don't have any others, then no, nothing is using it.
    – Chipaca
    May 17, 2016 at 13:20
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lsblk shows volume information for all mounted file systems. Because that one particular volume is still mounted it shows up in the lsblk output.

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  • Why is it mounted?? Is it okay if i try to unmount it?
    – Mohit Rajan
    May 1, 2016 at 13:35
  • You could remove snapd which would remove ubuntu-core, but then you'd lose the ability to install applications which are packaged as snaps.
    – popey
    Jan 31, 2017 at 8:57

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