[c-nsp] Correct syntax for Boot system

Laurent Dumont laurentfdumont at gmail.com
Thu Feb 28 17:06:29 EST 2019


Hi everyone,

I've always used the following :

 bootflash:asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin

I don't think I've ever tried with :

 bootflash:/asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin

I'm not sure why you would place a forward slash. I feel like I did it once
and it failed to find the image. I'll try in a bit and see what it does.

On Thu, Feb 28, 2019 at 4:22 PM Erik Sundberg <ESundberg at nitelusa.com>
wrote:

> Scott,
>
>
>
> This really depends on the platform and where the image is store. Below is
> a walk though command by command. This is an example for a ASR920, but will
> work on any IOS device. Let me know if you have any questions.
>
>
>
> Type dir  or dir /all (Shows directories from all file systems)
>
>
>
> Router#dir
>
> Directory of bootflash:/      <<<<<<<<<<< This is the local filesystem. I
> have seen this call (Flash, Flash0, Disk0, Disk1, Bootflash, Bootdisk, and
> a couple more. It really depends on the router platform)
>
>
>
>    12  -rw-        404372822  Jun 30 2017 21:35:15 -05:00
> asr920-universalk9_npe.16.05.01.SPA.bin
>
>    23  -rw-        311139324   Aug 9 2017 04:01:41 -05:00
> asr920-universalk9_npe.03.16.04.S.155-3.S4-ext.bin
>
>    25  -rw-        311274492  Dec 21 2017 10:39:19 -06:00
> asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin  <<< Let boot this file
>
>
>
>
>
>
>
> Router (config)#boot ?
>
>   bootstrap  Bootstrap image file
>
>   config     Configuration file
>
>   host       Router-specific config file
>
>   network    Network-wide config file
>
>   system     System image file
>  <<<<<<<< boot the System image files
>
>
>
> Router(config)#boot system ?
>
>   WORD   TFTP filename or URL
>
>   flash  Boot from flash memory                                <<<<<<<
> source will be from flash memory on
>
>   ftp    Boot from a server via ftp
>
>   mop    Boot from a Decnet MOP server
>
>   rcp    Boot from a server via rcp
>
>   rom    Boot from rom
>
>   tftp   Boot from a tftp server
>
>
>
> Router(config)#boot system flash ?
>
>   WORD  System image filename                               <<<<<<<< This
> should be the <filesystem>:/<imagefile.bin>
>
>   <cr>
>
>
>
> Router (config)#boot system flash
> bootflash:/asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin
>
>
>
> Save the config
>
>
>
> How to Verify. Make sure it's the only image confiugred
>
> Router#sh run | i boot
>
> boot system flash
> bootflash:/asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin
>
>
>
>
>
> Router#sh bootvar      Not all Cisco Devices have this command
>
> BOOT variable =
> bootflash:/asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin,1;
> <<<<<<<This is what the system is going to try and boot
>
> CONFIG_FILE variable does not exist
>
> BOOTLDR variable does not exist
>
> Configuration register is 0x2102
>
>
>
>
>
> Verify the that files exist and the router can get to it. Type dir and
> copy and path the BOOT Variable from above or from the sh run | i boot.
> Remove the ,1; from the end of the line. This will check to make sure you
> have not typo'd the filesystem or file name
>
>
>
> Router#dir bootflash:/asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin
>
> Directory of
> bootflash:/asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin
>
>
>
>    25  -rw-        311274492  Dec 21 2017 10:39:19 -06:00
> asr920-universalk9_npe.03.16.06b.S.155-3.S6b-ext.bin
>
>
>
> 1339412480 bytes total (200482816 bytes free)
>
>
>
>
>
>
>
> -----Original Message-----
> From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> On Behalf Of Hagen
> Amen
> Sent: Thursday, February 28, 2019 12:16 PM
> To: Scott Voll <svoll.voip at gmail.com>
> Cc: cisco-nsp <cisco-nsp at puck.nether.net>
> Subject: Re: [c-nsp] Correct syntax for Boot system
>
>
>
> I've found, same as Tyler, that the "flash:" alias doesn't work at boot
> (on my 4Ks), so the stanza:
>
>
>
> boot-start-marker
>
> > boot system bootflash:isr4300-universalk9.16.06.03.SPA.bin
>
> > boot-end-marker
>
>
>
>
>
> works just fine. I do see systems out of the box with the extra "flash"
>
> keyword. I haven't found one yet that doesn't work by pointing directly to
> the file system name. Does seem like a newer bit of added clutter.
>
>
>
> sincerely,
>
> Hagen
>
>
>
>
>
> On Thu, Feb 28, 2019 at 10:06 AM Scott Voll <svoll.voip at gmail.com<mailto:
> svoll.voip at gmail.com>> wrote:
>
>
>
> > External Sender - Be Suspicious of Attachments, Links, and Requests
>
> > for Payment or Login Information.
>
> >
>
> > ----------------------------------------------------------------------
>
> > ----------------------------------------------------------------------
>
> >
>
> > my question is the extra flash in the command:
>
> >
>
> > boot system *flash* bootflash:filename.bin
>
> >
>
> > is that something new?
>
> >
>
> > Scott
>
> >
>
> >
>
> >
>
> >
>
> > On Thu, Feb 28, 2019 at 9:53 AM Tyler Applebaum <applebaumt at ochin.org
> <mailto:applebaumt at ochin.org>>
>
> > wrote:
>
> >
>
> > > On the 4k series I use bootflash:<filename>
>
> > >
>
> > > -----Original Message-----
>
> > > From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf
>
> > > Of Scott Voll
>
> > > Sent: Thursday, February 28, 2019 9:40 AM
>
> > > To: cisco-nsp <cisco-nsp at puck.nether.net<mailto:
> cisco-nsp at puck.nether.net>>
>
> > > Subject: [c-nsp] Correct syntax for Boot system
>
> > >
>
> > > I have always used
>
> > >
>
> > > boot system flash:xxxxxx.bin or boot system bootflash:xxxx.bin
>
> > >
>
> > > did the syntax change to boot system flash flash0:xxxxx.bin???
>
> > >
>
> > > I have a new 4331 that without the extra flash it failed to boot.   Is
>
> > this
>
> > > new?  did I miss the memo?
>
> > >
>
> > > does this carry over to ASRs and the older 29xx/39xx platforms?
>
> > >
>
> > > I'm booting a bunch of remote routers and don't want to be driving
>
> > > to recover them from a simple mistake I missed.
>
> > >
>
> > > TIA
>
> > >
>
> > > Scott
>
> > > _______________________________________________
>
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>
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>
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