Damn it! Well, thanks for the information, Russ.
Don
On 6/22/2012 3:37 PM, Russell N. Nelson - rnnelson wrote:
My research into SD card reliability says that even a read-only root won't help
you if you have a different partition mounted read-write on the same SDcard.
The wear-leveling system can cause two partitions to be handed the same flash
block, so that writing into the read-write partition can cause part of the
read-only filesystem to get rewritten and possibly corrupted if the sdcard
write fails.
There's no magic bullet, I fear.
-russ
________________________________________
From: on behalf of Clark
Dunson
Sent: Tuesday, June 19, 2012 12:00 PM
To:
Subject: Re: [ts-7000] read-only Debian on TS-7260
Yes Don, we ship that way. TS-7260/2.6.21 read-only root
This wiki is particularly helpful:
http://wiki.debian.org/ReadonlyRoot
We had to partition the SD card to make room for /var which still must be
mounted RW.
All attempts to mount the NAND on TS-7260 have failed once booted from SD card
have failed though.
On Jun 19, 2012, at 8:18 AM, Don Tucker wrote:
That's great. The SD card image that I'm currently using was developed for the
TS-7400, so my procedure can probably follow yours. Did you use the unionfs
method described in the TS document I linked to?
Don
On 6/19/2012 10:04 AM, Russell N. Nelson - rnnelson wrote:
No, but I got it working on a TS-7400.
________________________________________
From: on behalf of Don Tucker
Sent: Tuesday, June 19, 2012 10:50 AM
To:
Subject: [ts-7000] read-only Debian on TS-7260
I'm currently running a 2.6.21-ts kernel and Debian file system on an SD
card with a TS-7260. I'm considering trying to restrict all of the file
system writes to a single read-write partition, and leave everything
else read-only. I found this resource on Technologic Systems' website
that describes setting up a read-only file system for the TS-73XX.
http://www.embeddedarm.com/about/resource.php?item=466
Has anyone tried this for the TS-72XX?
Don
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