Opened 5 years ago

Closed 5 years ago

Last modified 3 years ago

#13659 closed defect (wontfix)

Prebuilt JFFS images for TL-WR841N will brick it

Reported by: gus@… Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: packages Version: Attitude Adjustment 12.09
Keywords: Cc:


The r36088 release has prebuilt JFFS images for ar71xx, TP-Link TL-WR841N v8.x
is my router but I think other 4Mb ar71xx routers will be similar.

In my case I flashed openwrt-ar71xx-generic-tl-wr841n-v8-jffs2-factory.bin.

The system boots but the JFFS rootfs has no free space, resulting in a bricked router. Initial boot hangs and doesn't complete, failsafe boot enters a console but most busybox tools don't work properly due to 0 free space. Reflashing via bootloader is the only recovery option.

I assume the 12.09 default install is just too big to fit in a 4Mb JFFS partition?

It'd be really helpful to disable building these images if they don't work. I haven't yet had time to look at how difficult this would be, sorry.

Will attach relevant dmesg section & df output in case this is an actual bug, but I suspect it's just a case of not enough space.

Thanks for all your work on OpenWRT, great distribution. Can't stand to look at a default router web interface any more!

Attachments (1)

wr841n_jffs.txt (2.1 KB) - added by gus@… 5 years ago.
dmesg & df output

Download all attachments as: .zip

Change History (8)

Changed 5 years ago by gus@…

dmesg & df output

comment:1 follow-up: Changed 5 years ago by jow

  • Resolution set to wontfix
  • Status changed from new to closed

Don't use JFFS2 images.

comment:2 Changed 5 years ago by gus@…

Is the config/scripts for the build machine (to build all configs) available online anywhere?

If so I'm happy to try and submit a patch to disable building JFFS images for 4Mb routers.

comment:3 Changed 5 years ago by gus@…

(Sorry, I should explain that I looked in the source tree which I'm relatively familiar with. Got the impression that whatever happens for snapshots/releases is external to that tree but I may just be looking in the wrong place.)

comment:4 Changed 5 years ago by jow

JFFS2 images got globally disabled already in r36860 - r36863

comment:5 Changed 5 years ago by gus@…

I see, thank you for letting me know.

comment:6 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

comment:7 in reply to: ↑ 1 Changed 3 years ago by anonymous

Replying to jow:

Don't use JFFS2 images.

So why are the JFFS2 images still there? It's a bit rude to keep images online when we know they brick the router.

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