downgrading ap260I with mac book air

[maxihaindl]

Hi folks,

I am trying to downgrade an 2600 ap using my mac book air 10.10.2 with IP address 10.0.0.2/28 + the built in tftp server. file name is "ap3g2-k9w7-tar.default" with 666 rights. the tftp root folder also got 666 for everyone. when I am trying to let the AP pull up the image it stops saying "Image is not a valid IOS image archive". I've also compared the md5 checksum, witch is correct. In addition I have downgraded the ap from a colleagues windows pc and it ran through as a charm.

Base Ethernet MAC address: xxx
Ethernet speed is 1000 Mb - FULL Duplex
button is pressed, wait for button to be released...
button pressed for 22 seconds
process_config_recovery: set IP address and config to default 10.0.0.1
process_config_recovery: image recovery
image_recovery: Download default IOS tar image tftp://255.255.255.255/ap3g2-k9w7-tar.default

examining image...
DPAA Set for Independent Mode
DPAA_INIT = 0x0

extracting info (287 bytes)
Premature end of tar file
ERROR: Image is not a valid IOS image archive.ap:

Has anybody got the same issue?

Hope I haven't missed something really stupid, but I've spend almost the whole day trying to bring it up autonomous.

Thanks for your help in addition!

Cheers,

Maxi

[Leo Laohoo]

I am trying to downgrade an 2600 ap using my mac book air 10.10.2 with IP address 10.0.0.2/28 + the built in tftp server. 

Must be a type-o, but a "/28"?  That's a wrong subnet.

ERROR: Image is not a valid IOS image archive

Check the MD5 hash value and compare the value against the MD5 hash value found in the Cisco website.

[maxihaindl]

Hi Leo,

what do you mean with type-o? /28 is truly wrong but fortunately just on this post here. I've configured a 255.255.255.224 subnet as the AP's IP config per 'set' in ROMMON.

The MD5 is correct. I've double-checked that twice.

%Error opening tftp://255.255.255.255/ap3g2-k9w7-tar.default (permission denied)ap: set
DEFAULT_ROUTER=10.0.0.1
ENABLE_BREAK=yes
IP_ADDR=10.0.0.1
MANUAL_BOOT=no
NETMASK=255.255.255.224
NEW_IMAGE=yes
RELOAD_REASON=58
ROM_PERSISTENT_UTC=1354548142
TERMLINES=0
ap:
IOS Bootloader - Starting system.
flash is writable
FLASH CHIP:  Numonyx Mirrorbit (0089)
Xmodem file system is available.
flashfs[0]: 15 files, 3 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 31997952
flashfs[0]: Bytes used: 6227968
flashfs[0]: Bytes available: 25769984
flashfs[0]: flashfs fsck took 15 seconds.
Reading cookie from SEEPROM
Base Ethernet MAC address: e4:d3:f1:1e:8f:08
Ethernet speed is 1000 Mb - FULL Duplex
button is pressed, wait for button to be released...
button pressed for 22 seconds
process_config_recovery: set IP address and config to default 10.0.0.1
process_config_recovery: image recovery
image_recovery: Download default IOS tar image tftp://255.255.255.255/ap3g2-k9w7-tar.default

examining image...
DPAA Set for Independent Mode
DPAA_INIT = 0x0

extracting info (286 bytes)
Premature end of tar file
ERROR: Image is not a valid IOS image archive.ap:

[Scott Fella]

You sure that there is no hidden added file extension?  When I upload/download code from my Mac, I have always done it through Windows running in Parallel. Maybe it's because I tried it before and couldn't get it to work:) Who knows.

-Scott

[maxihaindl]

As of the wireshark trace, I see the AP requesting for the image. Mac is also responding to that with a tiny bit of data but not all. I assume the transfer gets cut off for some reason. might the issue reside on my mac?

-maxi