Searching for Squashfs Nand Flash Support information? Find all needed info by using official links provided below.
https://elinux.org/Squashfs_support_for_MTD_subsystem
Squashfs is already widely used on MTD devices (NAND flash etc.) in embedded systems, however, because Squashfs lacks native MTD support, this is currently performed via MTD's block device emulation (or via UBI or stored inside another MTD aware filesystem, i.e. YAFFS2/JFFS2).
https://sourceforge.net/p/squashfs/mailman/message/20972350/
Given this, with the introduction of UBIFS, it is now unnecessary to implement NAND support in Squashfs, because UBIFS does bad block remapping itself. The simple strategy of using UBIFS and then placing a Squashfs filesystem inside that gives you bad block remapping for free.
http://www.infradead.org/pipermail/linux-mtd/2006-April/015386.html
Providing native NAND support in Squashfs represents too much work for absolutely no gain. It is unlikely this is going to change in the near future.
https://www.analog10.com/posts/squashfs_on_ubifs.html
SquashFS is a performant read-only compressed file systems that makes shipping Linux on small flash chips possible. NOR flash is a less storage dense but "easy" flash technology to use in industrial settings; I cannot recall encountering 1 bad block on freshly shipped NOR flash.
https://lists.denx.de/pipermail/eldk/2013-January/002259.html
Your > squashfs file system is in NAND flash, so the normal way would be to > just access it through the MTD block device emulation in Linux. Yes,this standard process works fine. I would like to find out if my "unusual" configuration differs from the standard configuration with respect to the boot time and application start time.
https://github.com/openwrt-mirror/openwrt/commit/6f2905eeb6ce5ddec8d12d677e1f377a940b537b
ipq806x: enable NAND flash support in the kernel Previous patch set backported the recently posted NAND flash driver to 3.18 and 4.1 kernel. This patch now enables it in the kernel config. There is no change to the partition layout and init yet.
https://openwrt.org/docs/techref/filesystems
Both SquashFS and JFFS2 are compressed filesystems using LZMA for the compression. SquashFS is a read only filesystem while JFFS2 is a writable filesystem with journaling and wear leveling. Our job when writing the firmware is to put as much common functionality on SquashFS while not wasting space with unwanted features.
https://openwrt.org/docs/techref/flash.layout
SquashFS-Images are suitable for devices with “raw NOR flash memory” -chips and it is not recommended to install them onto devices with “raw NAND flash memory” -chips. SquashFS-Images comprise both, a SquashFS partition and an JFFS2 partition. JFFS2-Images omit the SquashFS partition. TP-Link WR1043ND Flash Layout
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