Need tips on emulation of MIPS-BE system using QEMU with the help of squashfs image file and uBoot Kernel image file extracted from the firmware file. Long Version: What I have: A cheap unpopular GPON (Fiber ONU) device, which I have root shell access to. A decent computer Beginner skills (binwalk, gdb, basic buffer overflow etc.) Make a "squashfs" image that contains the full uncompressed image. sudo apt-get install squashfs-tools mksquashfs image squash.img Streaming Compression. To avoid making a separate temporary file the full size of the disk, you can stream into a squashfs image. In SquashFS 4.0 filesystems, the compression method is stored on the 21 st and 22 nd bytes of the superblock as a data type short. dd bs=1 count=2 skip=20 will retrieve the short, od -An -tdI will turn the short into a human-readable number, and xargs is just to get rid of the leading spaces. Before SquashFS 4.0, there was only the gzip method.

What is an SQUASHFS file? A SQUASHFS file is a compressed file used by Squashfs, a read-only file system software for Linux. It stores file system data in a highly compressed read-only format. The SQUASHFS format supports files, inodes, and directories. SQUASHFS files are optimized for archiving and read-only file system use.

qemu-img convert: raw, qcow2, qed, vdi, vmdk, vhd ¶. The qemu-img convert command can do conversion between multiple formats, including qcow2, qed , raw, vdi, vhd, and vmdk. This example will convert a raw image file named image.img to a qcow2 image file. Run the following command to convert a vmdk image file to a raw image file.
You could mount them with fuse-zip or archivemount and then create the squashfs file from the mount point. For example, this would work for a zip file: $ mkdir /tmp/zmnt $ fuse-zip -r /path/to/file1.zip /tmp/zmnt $ mksquashfs /tmp/zmnt /path/to/file1.squashfs $ fusermount -u /tmp/zmnt
Click “Browse” and select your OpenWrt image file (openwrt-ar71xx-dir-825-b1-squashfs-factory.bin, this binary image is available in the Backfire 10.03.1rc1 download directory and above) Click “Update” and let router flash the image (don't worry if it reboots before it reaches 100%). error: cannot perform the following tasks: - Mount snap "core" (10126) (cannot run unsquashfs: ----- Filesystem uses xz compression, this is unsupported by this version Decompressors available: gzip -----) So I went to the squashfs LZMA website, downloaded the tarball and extracted it. cc -O2 -I. -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
4. Copy openwrt-ramips-mt76x8-xiaomi_miwifi-3c-squashfs-sysupgrade.bin to /tmp in router using ftp. 5. İnstall Openwrt to OS1 and free OS2. mtd erase OS1 mtd erase OS2 mtd -r write /tmp/openwrt-ramips-mt76x8-xiaomi_miwifi-3c-squashfs-sysupgrade.bin OS1. Limitations: For the first install the image size needs to be less than 7733248 bits.
In most cases the dumped files are fine for e.g. loadiine or Cemu, but when you try to repack them into encrypted NUS Files, they won't work on console. The .xml's are incomplete (for example the complete permission section in the cos.xml is missing) and unloaded rpl's are NOT dumped at all (the preload.txt isn't dumped either). A NUS
Someone has disabled the squashfs module by setting up an "install squashfs /bin/true" in a file in /etc/modprobe.d. Thank you so much. Was an entry by Security Requirement from the setup I think. Go to the installation folder and replace the 7z.dll there with the one from 7zip. After that you can mount squashfs files as well. The extension remains unknown to WinArchiver, but you can still select them by browsing all files (*.*). Now I can mount PS3 games from my Batocera collection and use them with the Windows version of RPCS3. Very nice. Container is at: ./centos.simg # singularity exec -w centos.simg ls ERROR : Unable to open squashfs image in read-write mode: Read-only file system ABORT : Retval = 255 # singularity shell -w centos.simg ERROR : Unable to open squashfs image in read-write mode: Read-only file system ABORT : Retval = 255 # singularity shell centos.simg
\n\n \n\n\n how to open squashfs file
In majority of cases following instruction in step 1 and 2 should be enough to open files with SQUASHFS extension. Before attempting the next steps, test all the programs listed below. Before attempting the next steps, test all the programs listed below.
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    • how to open squashfs file