Hi everybody,
I am using an alix board with the current trunk version of openwrt. If I remember correctly upgrading to a newer version should work with dd if=openwrt-image of=/dev/devicename (in my case /dev/sda). However the system says that there is not enough space on the medium, which is a 2gb CF disk! When I remove it from the board and flash it like this in my computer everything works perfectly .... So what am I doing wrong? Its is realy annoying to open the box everytime I want to flash a new version and remove the card ...

Anny ideas?

Thanks a lot in advance,

Thorsten

I usually gzip the image .ext2.image file on my pc, scp it over to /tmp on the running OpenWrt and issue the commands

zcat /tmp/blah.image.gz | dd of=/dev/sda; reboot

No idea where you got the error message from, at least it wasn't "dd" I think. Maybe you tried to upload the uncompressed image to /tmp and it was too big. Storing the image on the cf card you're trying to overwrite is also a bad idea

~ JoW

Hi,
so wat I did was just
cat openwrt-ext2.image | of=/dev/sda
This just took one second (the image file is 54mb large) so I think something goes wrong / nothing happens. After rebooting I recognized thet the firmware was not copied...
The second thing I did was
dd if=/mnt/sdb1/openwrt-ext2.image of=/dev/sda which took roughly 2 min, after a reeboot the router did not start ...
Flashing the same file from my mac to the CF card over a card reader works perfect (the system boots fine)???

I also tried sysupgrade:

root@OpenWrt:~# sysupgrade -v -i /tmp/openwrt-x86-110609.image
Keep config files over reflash (Y/n): y
Edit config file list (y/N): n
Saving config files...
etc/rc.local
etc/firewall.user
etc/dropbear/dropbear_dss_host_key
etc/dropbear/dropbear_rsa_host_key
etc/dropbear/
etc/dropbear/dropbear_rsa_host_key
etc/dropbear/dropbear_dss_host_key
etc/group
etc/passwd
etc/config/webif_access_control
etc/config/updatedd
etc/config/ucitrack
etc/config/secrets.tdb
etc/config/lucid
etc/config/luci_statistics
etc/config/luci_hosts
etc/config/luci_ethers
etc/config/luci
etc/config/hd-idle
etc/config/crontabs
etc/config/timezone
etc/config/httpd
etc/config/wireless
etc/config/dropbear
etc/config/dhcp
etc/config/cron
etc/config/firewall
etc/config/samba
etc/config/ushare
etc/config/ntpclient
etc/config/fstab
etc/config/qos
etc/config/network
etc/config/system
etc/config/webif
etc/config/
etc/config/webif
etc/config/system
etc/config/network
etc/config/qos
etc/config/fstab
etc/config/ntpclient
etc/config/ushare
etc/config/samba
etc/config/firewall
etc/config/cron
etc/config/dhcp
etc/config/dropbear
etc/config/wireless
etc/config/httpd
etc/config/timezone
etc/config/crontabs
etc/config/hd-idle
etc/config/luci
etc/config/luci_ethers
etc/config/luci_hosts
etc/config/luci_statistics
etc/config/lucid
etc/config/secrets.tdb
etc/config/ucitrack
etc/config/updatedd
etc/config/webif_access_control
Switching to ramdisk...
mount: mounting /dev/root on /mnt failed: Device or resource busy
Performing system upgrade...
cat: write error: No space left on device
Refreshing partitions
Refreshing mtd partition rootfs ... Could not open mtd device: rootfs
Could not open mtd device: rootfs
Could not open mtd device: rootfs
Can't open device for writing!
Upgrade completed
Reboot (Y/n): yConnection to 192.168.1.1 closed by remote host.
Connection to 192.168.1.1 closed.
MacBook:~ Thorsten$

So what am I doing wrong?

Here a the specs of my system:

root@OpenWrt:~# mount
rootfs on / type rootfs (rw)
/dev/root on / type ext2 (rw,relatime)
proc on /proc type proc (rw,relatime)
sysfs on /sys type sysfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /dev type tmpfs (rw,relatime,size=512k)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
none on /proc/bus/usb type usbfs (rw,relatime)
/dev/sdb1 on /mnt/sdb1 type ext2 (rw,relatime,errors=continue)
root@OpenWrt:~#

root@OpenWrt:~# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root                48377     13986     31934  30% /
tmpfs                   128296       216    128080   0% /tmp
tmpfs                      512         0       512   0% /dev
/dev/sdb1            307666352 227808172  64229624  78% /mnt/sdb1
root@OpenWrt:~#

thx,

Thorsten

(Last edited by thorstenk on 9 Nov 2009, 00:00)

If you're quoting the command you issued correctly, then it won't work; you left off the dd:

cat /my.image | dd of=/dev/sda

Try

dd if=/uncompressed.image of=/dev/sda

Or you can get images for each partition, so