Questions tagged [squashfs]

Squashfs is a read only file system in which all inodes, files, and directories are compressed. It is thus most suitable for archival use or other specialist purposes such as its use in Ubuntu Live Cds.

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Error message “Failed Unmounting /cdrom” after rebooting customizing ubuntu liveCD

I'm working on custom debian/ubuntu liveCD following this guide , and when i rebooting or shutdown system (with or without installing system), i got this message "Failed Unmounting /cdrom", ...
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809 views

20.04 snapd issue: “system does not fully support snapd: cannot mount squashfs image…”

I'm running Ubuntu 20.04 on a VPS. I want to install certbot, but I'm having issues with squashfs - here's what I get when I sudo systemctl status snapd (obviously, I was lead to this error when ...
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266 views

Snap gives wrong fs type, bad option, bad superblock on /dev/loop23 eror

$ sudo snap remove audacity error: system does not fully support snapd: cannot mount squashfs image using "squashfs": mount: /tmp/sanity-mountpoint-881202120: wrong fs type, bad ...
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What does Ubuntu Live CD use to merge multiple *.squashfs files, from the casper directory, to single unified filesystem, UnionFS or AUFS? Or else?

Answer to this would really help me out with the master thesis. I created custom Ubuntu 18.04 Live CD .iso image that comes preinstalled with certain packages (NodeJS, Chrome, Java, MongoDB). However ...
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Ubuntu disk checking stuck at 33%

I used Oracle VirtualBox to install Ubuntu 20.04.1, and it is stuck at 33% when checking disks (it says "Checking ./pool/restricted/l/l Checking ./casper/filesystem.squashfs". Ctrl+C doesn't ...
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Why am I seeing loop and squashfs in “blkid” output? [duplicate]

executing $blkid on 20.4 I am seeing a output as below. I don't understand what loop and squashfs are here? Could someone explain? Does this have anything to do with snap installed applications? /dev/...
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3k views

“SquashFS error: unable to read data cache entry”. When installing latest 20.04 ISO from Ubuntu on VMWare Player, during EasyInstall

I downloaded the latest 20.4 ISO (ubuntu-20.04-desktop-amd64.iso) from Ubuntu.com and tried to use it to create a new VM in VMWare Player using EasyInstall, on Windows 10 Home 64bit, using default ...
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750 views

squashfs error with ubuntu 20.04 amd64 installation [duplicate]

i heard that ubuntu is less ram hungry than windows, so downloaded the ubuntu iso file from here i followed every instruction such as using rufus for creating the boot usb. but when i try to install ...
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205 views

Snapd won't install on Ubuntu 16.04 VPS

I can't get snap to work on an Ubuntu 16.04 vps. I get this output when trying to install: The following NEW packages will be installed: snapd 0 upgraded, 1 newly installed, 0 to remove and 0 ...
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423 views

Prevent du command report inflated info about /snap directories

I have an Ubuntu 20.04 server installed on a single 8GB drive. The default installation has some "snap"s installed also. So, there are some "squashfs" file systems also reported by the df command: # ...
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Squashfs error post installation of ubuntu 18.04 L

I have windows on my laptop, jist now i downloaded ubuntu 18.04 L version from official site and installed it. Bit when i clicked restart and removed my flash drive my screen is all filled with a huge ...
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343 views

Compilation error when building squashfs tools

I tried to compile unsquashfs tool from GPL source, the sources are in the 'squashfs-tools' directory. Executing make gives error: Makefile:2: *** Sqlzma is not defined. Stop. As I see, the sqlzma ...
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2k views

Multiple Instances of /dev/loop0: TYPE=“squashfs” [duplicate]

I am having real troubles sorting this out! Why is the blkid output flooded with so many instances of /dev/loopx: TYPE="squashfs"? No significant information is available on the internet! Any help ...
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1answer
847 views

Hide loop partitions / snaps in Krusader

I have installed Ubuntu for my dad instead of Windows recently and he really wanted an alternative to his favourite file manager Total Commander, so I went with Krusader which I myself have been using ...
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1answer
617 views

Restore root from SquashFS or TAR

I'm running a dual-boot Ubuntu & Windows 10 Pro configuration. Before re-installing Windows I made 2 full backups with TAR and SquashFS of / with the following commands: SquashFs: sudo ...
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1answer
4k views

Ubuntu 18.10 failed installation

I just tried switching from windows 10 to linux and had decided to go with Ubuntu. I went through the installation steps on ubuntus website (using Rufus and such to format the usb) and completed the ...
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1answer
2k views

Booting encrypted SquashFS from Live CD

Can we boot encrypted squashfs from livecd. If it possible please suggest me to decrypt and boot the OS. here i'm using luks encryption technique for securing the Squashfs file but i'm fail to ...
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Cannot modify files installed by `snap`

I have installed a package using snap and I need to modify one of the files but when I try to change its ownership or permissions, I always get the following message: sudo chmod +x ./my_file.js chmod:...
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1k views

Bootable USB from casper / PinguyBuilder backup

I am trying to make a bootable LiveUSB backup of my system. After getting into trouble with Systemback, I am trying PinguyBuilder. It seems nice, since it is a simple script that can be adapted. ...
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3k views

'SQUASHFS error: Unable to read fragment cache entry' when trying to install 17.10

Running Ubuntu 17.10 from the boot USB I'm unable to run applications such as settings, the actual installer or Firefox. Starting from desktop nothing happens. Starting from the applications I get an ...
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1answer
44k views

system mounts /dev/loop0 on /snap/core/3604 and it's 100% full, where is it coming from? [duplicate]

looking at df -h, I realized I have this /dev/loop0 mounted on /snap/core/3604 and it's always 100% full : root@maxipc:~# df -h Filesystem Size Used Avail Use% Mounted on udev 7.8G ...
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566 views

SQUASHFS ERROR after installing ubuntu on Hyper-V

I am trying to install Ubuntu on Hyper-V, After installation while restarting the machine I am getting SQUASHFS error, looks like file system related, but I am not sure how to resolve it. I have tried ...
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i cant install right package squashfs for ubuntu 14.04 [duplicate]

I am using ubuntu server 14.04.1 and i want edit filesystem.squashfs after installed squashfs-tools and unsquashfs and edit filesystem and mksquashfs and build iso i get this error base-installer: ...
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1answer
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squashfs: Operation not supported

I am using ubuntu server 14.04.1 and i want edit filesystem.squashfs after installed squashfs-tools and unsquashfs and edit filesystem and mksquashfs and build iso i get this error base-installer: ...
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234 views

I accidentally formatted my USB flash drive to “squashfs” and I need to be able to access it's files from a windows system

Basically the title, I have no idea how it was formatted to squashfs, and when I run disks, the format button is greyed out. Thanks for your help!
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Squashfs to backup? Or tar.gz? (I have all kinds of junk I have saved in my old PC with duplicates probably… is squashfs worth it?

So I have a old folder with lots of stuff. I think there are duplicate files here and there. Is it worth it to do a squashfs backup first? Or should I just 7zip it? Here is my backup trick method: ...
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1answer
4k views

Unknown filesystem 'squashfs' when trying to mount snap packages

$ snap install hello-world error: cannot perform the following tasks: - Mount snap "core" (1689) ([start snap-core-1689.mount] failed with exit status 1: Job for snap-core-1689.mount failed. See "...
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1answer
2k views

Unit snap-core-716.mount has failed on Ubuntu 16.04 lts (rootfs) armhf

I have Ubuntu 16.04 lts (rootfs) running on an armhf kernel. I have an issue when I try to install snaps with errors Unit snap-core-716.mount has failed as per hereunder: An example of a snap ...
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1answer
2k views

Cant install Ubuntu 16.10 I/O error Squashfs error

I was trying to install Ubuntu 16.10 on my pc. I have already Windows 7 in dual boot installed. I have all hard disk used by Windows. I had some freed space anyaway (more then 100 gb). I thought that ...
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1answer
888 views

Unable to boot (or reinstall) Kubuntu 16.04 after upgrade

After doing some updates/upgrades (unfortunately I don't remember names of the packages) I am not able to boot into Kubuntu. It freezes on the "Breathing kubuntu logo". When I hit escape, I can see ...
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4answers
41k views

SquashFS Errors Post-Install

Recently, my computer has developed a rather puzzling problem. After I finish an Ubuntu installation, Ubuntu spits out a number of errors seemingly related to bad blocks. These errors cover my screen ...
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2answers
21k views

How to convert a iso9660 ISO to a USB ISO

I have an ISO of customized GCompris based on Ubuntu. It is intended to be burned on a CD (iso 9660 FS Type). When I try to burn it to a USB, the pendrive "becomes" a CD and it won't boot... The guy ...
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1answer
1k views

Installing Ubuntu on laptop via USB gives squashf errors

Hey guys my laptop is acer aspire. I've tried installing Ubuntu on my lap top using USB. I've finished the process and rebooted. Upon reaching my boot up screen I get lots of errors Squashfs error ...
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1answer
1k views

Ubuntu 15.10 on Windows Host VirtualBox Problem

I install Ubuntu 15.10 on Windows 10 host on VirtualBox, on first reboot after installation complete(the one Ubuntu wants) there is an error like this: SQUASHFS error: Unable to read fragment cache ...
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476 views

Trying to modify a modem firmware squashfs

Good Day, I'm trying to modify a greenpacket modem firmware. The firmware is a .tar.gz I was able to extract it and the files are format.txt, initrd, md5.txt, umac, zImage I extracted the initrd ...
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208 views

Squash tools don't make correct image for use

I want to modify few files on Xubuntu 14.04 LTS Live CD, because I'd like to use it for netboot. I need to change a file that starts some service and that's all. I already looked on internet for ...
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766 views

Install CD Customization; filesystem.squashfs - unsquashfs & mksquashfs

I am creating customized install cd. As part of process I need to unsquashfs existing filesystem.squashfs, add few files and then recreate filesystem (mksquashfs). Seems that everything is working, ...
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1answer
5k views

Ubuntu 15.04 on Windows 10 Hyper-V, hangs on 1st reboot

My Ubuntu 15.04 Hyper-V VM hangs on the first reboot after installation. FYI, I'm a complete Ubuntu beginner. This is the error line I get: [791.989782] blk_update_request: I/O error, dev sr0, sector ...
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1answer
16k views

Install ubuntu with the command line

I want to install Ubuntu without using Ubiquity. I want to install it through the command line only. Not looking for Ubuntu Server install. Just help on how I can install it through the command line. ...
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2answers
1k views

mksquashfs not excluding file

I am having issues excluding a specific file from a squashfs. I want to be able to exclude all file types ending with *.db but have had no luck. Whenever I run the mksquashfs command with the ...
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1answer
659 views

No Audio on Ubuntu-Mini-Remix

I'm using ubuntu-mini-remix to build a network-booting live OS which loads a remote desktop client and logs users into their virtual desktop environments. I've gotten everything to work except the ...
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111 views

unsquashing a liveUSB, I found that the filesystem is not identical to the one loaded from liveUSB

so I have ubuntu studio 64 in a live USB and I wanted to change the way it boots. Namely, the liveUSB boots directly to a live user session bypassing lightDM. I want to change that and as I figured ...
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1answer
853 views

`squashfs-tools` creates incorrectly compressed file

I have a 6.3G filesystem dump that I've been trying to compress using squashfs, but after using unsquashfs, the generated file is different from the original dump. I generated a difference between ...
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1answer
941 views

Ubuntu ISO Structure

I am working on an ubuntu iso personalization script based on the buggy uck .. The uck team seemed to know what they were doing, they used the structure of the ubuntu iso image a lot .. The problem ...
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0answers
681 views

Problem cause when install/try ubuntu from USB; got squashfs errors on Dell Inspiron 11

It looks like Squashfs errors were prevalent in the past but I haven't seen much recently. I'm using a Dell Inspiron 11 3000 with Windows 8.1 pre-installed. I turned off fastboot, secure boot, still ...
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2answers
67k views

Extract A Squashfs To An Existing Directory

I have an Ubuntu installation backed up as a .squashfs file. I would like to extract it to the root of a partition, but when I try gives me an error saying the directory exists. I can extract just ...
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1answer
3k views

How to make a .sqfs file

I've created an Ubuntu 13.10 Server 64-bit installation using a live CD. I want to backup the installation as a .sqfs file. I'm confused about how to do so. I looked at: http://manpages.ubuntu.com/...
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1answer
3k views

Why is full compression not used during squash?

Was interested to know why, with space/bandwidth at such a premium, is full compression not used during squash. For example, calling mksquashfs with the -comp xz -b 1M options at compression time ...
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1answer
4k views

How to access my saved files on a persistent LiveUSB?

I have been using a persistent mode USB when the hard disk of my laptop crashed. I like to mount the USB files on another computer running Ubuntu 12.10. From what I found after internet search, the ...
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2answers
7k views

What is the relationship between initrd and squashfs?

If we are using initrd for, say in live usb, why would we also need squashfs?