[c-nsp] Boot from TFTP

[Juergen Marenda]

Hello Jay,
 
Here is a link for the different "linear" Flash cards from Cisco.

http://www.cisco.com/en/US/products/hw/routers/ps341/products_tech_note09186a00800a7515.shtml

"PCMCIA Filesystem Compatibility Matrix and Filesystem Information"

...
The Flash disk is more flexible than linear Flash memory because the Flash disk has controller circuitry that allows it to emulate a hard disk and that automatically maps out bad blocks and performs automatic block erasure. Further, the Flash disk provides the capability to allocate noncontiguous sectors, which eliminates the need for the squeeze command (previously required with linear Flash memory cards).
...


>From ancient
http://www.cisco.com/en/US/docs/ios/11_3/configfun/configuration/guide/fcmemory.html

...
You can delete and undelete a file up to 15 times.
...

i think this is what i remembered as "delete 8/9 times" i my post.



I personally tried 16 MByte Linear Flash Card from a 7206vxr/NPE300/IO-1FE
and 4 MByte Linear Flash card from 1603R on my newton MP110,
they both did not work there. (also not in casio zoomer).

Compactflash-ATA Disks with (mechanix only) PCMCIA Adapter 
may work on 7206VXR or not due to different "disk-controller chip-sets"
in the compact-flash (windows-xp showed me the controller-type
when inserting into Laptop) so i could sort and swap them 
with my digicam's compact-flashcards.

Even when formatted on the target router, 
a 7206VXR may mutter "not formatted in this router" .



just plugged a Cisco 32M Compactflash from an 1812 into my laptop:

STI Flash 8.0.0
Properties Filesystem FAT
Capacity 31.973.376 Bytes
(keine FDISK Partitionstabelle "no tapllicable")

Hope this help's,

Juergen.

> -----Original Message-----
> From: Murphy, Jay, DOH [mailto:Jay.Murphy at state.nm.us] 
> Sent: Friday, June 24, 2011 11:33 PM
> To: jm at ilk.net; 'Scott Voll'
> Cc: cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] Boot from TFTP
> 
> Juergen, 
> 
> Könnten Sie bitte mir helfen... can you point me to the 
> source of this information, since some networks have legacy 
> devices, and different classes of flash file systems.
> 
> Dankt meinem freund,
> 
> ~Jay Murphy 
> Sr. IP Network Specialist
> NM State Government
>  
> IT Services Division
> PSB – IP Network Management Center
> Santa Fé, New México 87505 
> Bus. Ph.: 505.827.2851
> "We move the information that moves your world." 
> “Engineering is about finding the sweet spot between what's 
> solvable and what isn't."
> “Good engineering demands that we understand what we’re doing 
> and why, keep an open mind, and learn from experience.”
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> 
> -----Original Message-----
> From: Juergen Marenda [mailto:jm at ilk.net] 
> Sent: Friday, June 24, 2011 3:19 PM
> To: Murphy, Jay, DOH; 'Scott Voll'
> Cc: cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] Boot from TFTP
> 
> 
> no, the compact flash cards have "dos" filesystems,
> squeeze is not needed and not offered by the ios
> on those filesystems. Esp. after format squeeze on the compactflash
> is not needed. 
> 
> The old , linear fast PCMCIA FLASH Cards (but not compatible with 
> the Newton :-( as a former form of ip* was named) )
> did also not need squeeze but you had to delete a file 8? 9 ? times
> to free the blocks, or use squeeze if offerde by yoru IOS.
> > Even though you reformat the CompactFlash card, you will need 
> > to use "squeeze" to recoup the memory space.
> > 
> > ~Jay Murphy 
> > Sr. IP Network Specialist
> > NM State Government
>