[OpenWrt Wiki] OpenWrt on VirtualBox HowTo
openwrt.org › docs › guide-userJul 23, 2021 · combined-squashfs.img.gz This disk image uses the traditional OpenWrt layout, a squashfs read-only root filesystem and a read-write partition where settings and packages you install are stored. Due to how this image is assembled, you will have only 230-ish MB of space to store additional packages and configuration, and Extroot does not work.
OpenWrt x86 官方squashfs固件安装时扩容方法
https://www.izilzty.com/?post=5Command (m for help): p Disk openwrt-21.02.0-x86-64-generic-squashfs-combined.img: 2 GiB, 2164785152 bytes, 4228096 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xd0f061a8 Device Boot Start End Sectors Size Id Type …
[OpenWrt Wiki] SD card
openwrt.org › docs › guide-userDec 19, 2021 · To resize the squashfs-image one has to know the offset of the hidden f2fs filesystem. In this example, the squashfs partiton is /dev/sde2 . You can find the offset, by running losetup on your openwrt device.
[OpenWrt Wiki] Filesystems
https://openwrt.org/docs/techref/filesystemsImplementation in OpenWrt. The flash.layout article documents how OpenWrt uses both SquashFS and JFFS2 filesystems combined into one filesystem by overlayfs. The kernel is also stored separately from these partitions in raw flash. When the kernel is built, it is also compressed with LZMA and gzip, as documented in imagebuilder .
Expanding the squashfs file system - OpenWrt Forum
forum.openwrt.org › t › expanding-the-squashfs-fileMay 20, 2021 · I'm using openwrt-19.07.7-x86-64-combined-squashfs.img.gz on an APU4 with a 4GB sdcard I've been trying to follow the instructions here , to resize the squashfs image and use the rest of my sdcard. I've successfully found the offset using losetup: NAME SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE DIO LOG-SEC /dev/loop0 0 3014656 0 0 /mmcblk0p2 0 512 And successfully resized the squashfs partion ...