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#17922 - 01/03/19 04:27 PM Rescue Mode Problem on DM9x0UHD
Admin Online content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 9993
Rescue Mode Problem on DM9x0UHD

For rescue DM900 use usb cable and putty (serial port, 115200 bps 8N1, for the CFE stage, it's 9600 bps).

Start receiver and push ctrl+C to enter in cfe mode. Use usb stick for rescue file downloaded from internet.

Code:
ifconfig eth0 -auto
show devices
dir usbdisk0
boot usbdisk0:zImage-rescue-xxxxx


Then your receiver get in rescue mode and you can flash firmware (any tar.gz, tar.xz etc image file).

Check also : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=15557

- Rescue files
DM900UHD (eg : zImage-rescue-3.14-r0-dm900-20181002.bin) : http://www.dreamboxupdate.com/opendreambox/2.5/experimental/images/dm900/

DM920UHD (eg : zImage-rescue-3.14-r0-dm920-20181127.bin) : http://www.dreamboxupdate.com/opendreambox/2.5/unstable/images/dm920/index.php


TIP :

- If you have a login with username/pass, do the way explained on the post below,
http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=15557

- If you have NO login with username/pass requested (and no access via IP)... then you need to go the way of this post.

- Repair white web rescue page, "Content-Type: text/html;charset=utf-8" (Removal of the FrontPanel Screen OLED)
https://jb8a8f8.com/support/index.php?th....615/#post-5523
_________________________

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#19889 - 11/09/19 08:03 AM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
angeloblu Offline
stranger

Registered: 11/08/19
Posts: 4
I can't get it to go into a rescue mode attached cable with putty I send commands but nothing can help me thanks

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#19891 - 11/09/19 08:14 AM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
Admin Online content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 9993
Ciao !

Hai un problema di partizioni ? Se si, forse i dati sotto potrebbero aiutarti a risolvere.

Vai in "rescue mode", se non ci sei gia molto probabilmente.

Code:
echo "rescue" >> /proc/stb/fp/boot_mode && reboot


Controlla se hai le partizioni come sul box funzionate sotto (e un DM900UHD),

Quote:
opendreambox 2.5.0 dm900

>>> Your Dreambox has booted into RESCUE MODE.
>>> Please log in as user 'root' (no password required),
>>> then run 'help' to get further information.

dm900 login: root
root@dm900:~# fdisk -lu

Disk /dev/mtdblock0: 2 MB, 2097152 bytes
255 heads, 63 sectors/track, 0 cylinders, total 4096 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mtdblock0 doesn't contain a valid partition table

Disk /dev/mtdblock1: 0 MB, 131072 bytes
255 heads, 63 sectors/track, 0 cylinders, total 256 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mtdblock1 doesn't contain a valid partition table

Disk /dev/mtdblock2: 0 MB, 131072 bytes
255 heads, 63 sectors/track, 0 cylinders, total 256 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mtdblock2 doesn't contain a valid partition table

Disk /dev/mtdblock3: 14 MB, 14417920 bytes
255 heads, 63 sectors/track, 1 cylinders, total 28160 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mtdblock3 doesn't contain a valid partition table

Disk /dev/mtdblock4: 33 MB, 33554432 bytes
255 heads, 63 sectors/track, 4 cylinders, total 65536 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mtdblock4 doesn't contain a valid partition table
Found valid GPT with protective MBR; using GPT

Disk /dev/mmcblk0: 7634944 sectors, 3728M
Logical sector size: 512
Disk identifier (GUID): 30f082cc-2877-4689-9b2b-e1812454a613
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7634910

Number Start (sector) End (sector) Size Code Name
1 2048 65535 31.0M 0700 kernel
2 65536 2097151 992M 0700 rootfs
3 2097152 7634910 2703M 0700 data

Disk /dev/mmcblk0boot1: 4 MB, 4194304 bytes
4 heads, 16 sectors/track, 128 cylinders, total 8192 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mmcblk0boot1 doesn't contain a valid partition table

Disk /dev/mmcblk0boot0: 4 MB, 4194304 bytes
4 heads, 16 sectors/track, 128 cylinders, total 8192 sectors
Units = sectors of 1 * 512 = 512 bytes

Disk /dev/mmcblk0boot0 doesn't contain a valid partition table


Tienici informati,

Admin

DM920UHD :

Quote:
root@dm920:~# fdisk -lu /dev/mmcblk0
Found valid GPT with protective MBR; using GPT
Disk /dev/mmcblk0: 15269888 sectors, 3360M
Logical sector size: 512
Disk identifier (GUID): a157dc9b-d004-44e6-a25a-9c0d96d709f6
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 15269854
Number Start (sector) End (sector) Size Code Name
1 2048 65535 31.0M 0700 kernel
2 65536 4194303 2016M 0700 rootfs
3 4194304 15269854 5407M 0700 data


Perhaps you could restore your GPT partitions this way... from rescue partition.

Quote:
sgdisk /dev/mmcblk0 -z -n 1:2048:65535 -c 1:kernel -t 1:8301 -n 2:65536:4194303 -c 2:rootfs -t 2:8307 -n 3:4194304: -c 3:data -t 3:8300
_________________________

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#19892 - 11/09/19 09:08 AM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
angeloblu Offline
stranger

Registered: 11/08/19
Posts: 4
allora ti spiego a causa temporale non si accende piu in pratica resta con led rosso acceso ho provato con il cavetto
ma non riesco a collegarmi ,provato con putty con il comandi che sono postati sopra ma niente adesso ho staccato domani provero con i comandi che hai messo vediamo puoi essere piu preciso con la procedura passo passo grazie il dream e un 900
uhd grazie ancora

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#19893 - 11/09/19 09:12 AM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
Admin Online content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 9993
Devi lanciare il Putty in modalita seriale con velocita da 115200 bps, con il cavo collegato dalla porta Service del box al PC. Quando accendi il box dovrebbe darti informazioni sul terminale putty che potra aiutarti a capire cosa non va.

Gia con quello si potra capire qualche cosa. Questo fatto se si riesce, dovresti entrare nella console del rescue e da li potere fare i vari commandi fdisk per vedere come e la tua Flash. Poi da quello si potra vedere cosa fare.

Admin
_________________________

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#19901 - 11/11/19 02:31 AM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
angeloblu Offline
stranger

Registered: 11/08/19
Posts: 4
niente fatto la procedura con putty ma su putty nessuna informazioni non so piu cosa fare se c'è qualcuno in zona lombardia che mi puo dare una mano grazie

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#19902 - 11/11/19 04:02 AM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
Admin Online content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 9993
Istalla Teamviewer, e fai il boot del box, a distanza si potrebbe provare con il tuo PC poi ad entrare sul box e vedere.

Admin
_________________________

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#19907 - 11/11/19 03:02 PM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
angeloblu Offline
stranger

Registered: 11/08/19
Posts: 4
non ho capito come faccio con teamviewer a entrare nel box ?

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#19908 - 11/11/19 03:13 PM Re: Rescue Mode Problem on DM9x0UHD [Re: angeloblu]
Admin Online content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 9993
Tu istalli e mi mandi via PM il user/pin e cosi posso guardare a distanza, per vedere se posso sistemare.

Originally Posted By: angeloblu
non ho capito come faccio con teamviewer a entrare nel box ?


Admin

DM900UHD :

Quote:
opendreambox 2.5.0 dm900

>>> Your Dreambox has booted into RESCUE MODE.
>>> Please log in as user 'root' (no password required),
>>> then run 'help' to get further information.

dm900 login: root
root@dm900:~# fdisk -lu /dev/mmcblk0
Found valid GPT with protective MBR; using GPT

Disk /dev/mmcblk0: 7634944 sectors, 3728M
Logical sector size: 512
Disk identifier (GUID): 30f082cc-2877-4689-9b2b-e1812454a613
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 7634910

Number Start (sector) End (sector) Size Code Name
1 2048 65535 31.0M 0700 kernel
2 65536 2097151 992M 0700 rootfs
3 2097152 7634910 2703M 0700 data


Should be...
Quote:
sgdisk /dev/mmcblk0 -z -n 1:2048:65535 -c 1:kernel -t 1:8301 -n 2:65536:2097151 -c 2:rootfs -t 2:8307 -n 3:2097152: -c 3:data -t 3:8300
_________________________

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#25486 - 09/25/24 03:01 PM Re: Rescue Mode Problem on DM9x0UHD [Re: Admin]
salva1969 Offline
stranger

Registered: 09/14/24
Posts: 1
hello everyone i have a problem with dm920 uhd original since this morning black display and red light on steady helpoo

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#25488 - 09/26/24 12:41 AM Re: Rescue Mode Problem on DM9x0UHD [Re: salva1969]
Admin Online content
Japhar Member
Carpal Tunnel

Registered: 10/19/10
Posts: 9993
Only thing that can really answer your question, is a log via the Service port USB with Putty, at 115200 bps (COM).

Admin

Originally Posted By: salva1969
hello everyone i have a problem with dm920 uhd original since this morning black display and red light on steady helpoo
_________________________

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