DSM-G600, DNS-3xx and NSA-220 Hack Forum

GabrieleV · 2011-09-23 00:32:54

I never installed Debian natively on DNS-323. My question is: what does happen if the disk where the distro is installed on is lost or missing ?
I think that the Debian firmware (kernel only ?) does not offer any recovery, web interface or ssh access in this case.
Anyone has experienced this case ?

Thank you,
Gabriele

bjby · 2011-09-23 07:35:53

This actually happend to me. I had / installed to a cheap ubs stick. It got somehow corrupted and the box did not boot. I had swap on the USB for a while, that might have write-killled the stick. Anyway, I suspected this may be the cause, I restored a backup to a new usb and plugged it in. Box was up again.

I do monthly backup. It is somewhat dirty since it backs a live partition but I think its good enought. Each backup takes about 1G.

(sda is a usb stick.)
---------------------------------------------------------
#!/bin/sh
set -x
tdy=$(date +%Y-%m-%d)
tmpdir=/mnt/alice_a/temp/brian
workdir=$tmpdir/$tdy
tmptar=$tmpdir/brian-imgs-$tdy.tar.gz
destdir=/mnt/alice_a/backup

mkdir -p $workdir

#rm $workdir/*

cat /dev/sda > $workdir/brian-sda-$tdy.img;

for i in 0 1 2 3 4; do
cat /dev/mtdblock${i} > $workdir/brian-mtdblock${i}-$tdy.img;
done

tar -cvzf $tmptar $workdir

mv $tmptar $destdir

echo "done!"

Last edited by bjby (2011-09-23 08:00:26)

GabrieleV · 2011-09-23 10:55:06

That's what I've argued reading other posts.
There is non "recovery" way without the hard disk installation.
You have to use serial console to reflash and tun installer, or get a backup of your installation media.
It would be nice to have another way to recover, or put a minimal system in the flash.
This is where Alt-F is better that native Debian, I think.

bjby · 2011-09-23 19:08:16

yes that would be nice.

Keeping the debian installer in flash should kind of give this as a rescue. But I read somewhere that space is limitied and therefore this idea was cut.

However, if you put / on USB stick it is pretty easy to make a backup usb just in case.

Debian also give the risk that some kernel update bricks the dns323. One has to be somewhat careful with updates.

Last edited by bjby (2011-09-23 19:18:30)

GabrieleV · 2011-09-23 19:58:05

What's this http://ipkg.dhub.me/debian_reloaded/ ?
It seems it boots debian via fonz reload.ko ...
Anyone tried it ?
Regarding the space problem, I had managed a system to include dropbear in an initrd, so this could be a partial solution.

bjby · 2011-09-23 21:23:34

http://dns323.kood.org/forum/viewtopic.php?id=6228

GabrieleV · 2011-09-23 22:03:17

Fantastic .. so it works
Have to try it asap

Gabriele

JBLSteeve · 2013-01-02 23:26:01

Hi,

Can you help me. I have a problem with my hard drive so the DNS 323 don't start.
Can you give me some help me ? Is it possible to restore the file on a hard drive to restart my DNS323.

Steeve

DSM-G600, DNS-3xx and NSA-220 Hack Forum

Announcement

#1 2011-09-23 00:32:54

Debian native: what about hard disk failure ?

#2 2011-09-23 07:35:53

Re: Debian native: what about hard disk failure ?

#3 2011-09-23 10:55:06

Re: Debian native: what about hard disk failure ?

#4 2011-09-23 19:08:16

Re: Debian native: what about hard disk failure ?

#5 2011-09-23 19:58:05

Re: Debian native: what about hard disk failure ?

#6 2011-09-23 21:23:34

Re: Debian native: what about hard disk failure ?

#7 2011-09-23 22:03:17

Re: Debian native: what about hard disk failure ?

#8 2013-01-02 23:26:01

Re: Debian native: what about hard disk failure ?

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