Hi Yegor,
On 10/06/2016 03:55 PM, Yegor Yefremov wrote:
On Tue, Oct 4, 2016 at 12:10 PM, Enrico Jorns <ejo@xxxxxxxxxxxxxx> wrote:
This adds `filetype_squashfs` to the list of known filetypes and adds a
detection for squashfs files to file_detect_type(). This currently
matches on the `hsqs` start sequence of an image file.
Additionally, the newly introduced filetype is registered as the type of
the squashfs_driver which allows, for example, to mount squashfs without
the need to specify a type parameter.
This changes enable booting a squashfs with the simple `boot` command
pointing to the location (device) that holds the squashfs.
Note that booting with blspec is limited as the current squashfs driver
is not capable of handling symbolic links.
Glad to see SquashFS will be used not only by myself :-)
glad to see that, too ;)
Could you explain how one can write a rootfs.sqaushfs to a ubiblock
from Linux and then what steps are needed in barebox?
So far I've only found this info about ubiblock:
http://www.linux-mtd.infradead.org/doc/ubi.html#L_ubiblock, but it
doesn't say much.
Yes, the informations provided are a bit sparse..
My actions were:
ubiattach -p /dev/mtd5
ubiblock --create /dev/ubi0_0
ubiupdatevol /dev/ubi0_0 rootfs.squashfs
Can I mount /dev/ubi0_0 via mount? If yes, what parameters I should use?
The above commands look pretty similar to what I did. Mounting the
ubiblock device does work too, with a little pitfall, mount will be
confused by having a read-only file system but nobody told it before.
So you must do
mount -o ro /dev/ubiblock0_0 /mnt/test
How can I mount this volume in barebox step-by-step?
Using it in barebox is pretty easy, as the ubiblock layer is not
required there:
ubiattach /dev/nand0.root
ubiupdatevol /dev/nand0.root.ubi.ubivolname rootfs.squashfs
mkdir /mnt/test
mount /dev/nand0.root.ubi.ubivolname /mnt/test
To boot via bootspec form a ubi containing a squashfs, you simply need to
boot /dev/nand0.root.ubi.ubivolname
Hope that helps.
Best regards, Enrico
--
Pengutronix e.K. | Enrico Jörns |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-5080 |
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