[j-nsp] altconfig and altroot

harry harry at juniper.net
Thu Apr 22 23:59:32 EDT 2004


Hmmm. Why not use the cli show version?

You can run the command from a shell.....but if the cli will not start for
some reason it will likely not succeed:


% cli "show version"
Hostname: Montreal
Model: m5
JUNOS Base OS boot [6.1B3.3]
JUNOS Base OS Software Suite [6.1B3.3]
JUNOS Kernel Software Suite [6.1B3.3]
JUNOS Packet Forwarding Engine Support (M5/M10) [6.1B3.3]
JUNOS Routing Software Suite [6.1B3.3]


> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net 
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> Yuki Arif (JA/EID)
> Sent: Thursday, April 22, 2004 8:52 PM
> To: juniper-nsp at puck.nether.net
> Subject: RE: [j-nsp] altconfig and altroot
> 
> 
> Hello,
> 
> Thanks for your answer.......
> 
> I did "mount /altroot" and "mount /altconfig", then, I can 
> see it using "df" command.
> 
> More question,
> 
> Is there a way to check JunOS version in Hard disk ?
> 
> Thanks
> 
> 
> Yuki
> 
> -----Original Message-----
> From: harry [mailto:harry at juniper.net]
> Sent: Friday, April 23, 2004 10:43 AM
> To: 'Harshit Kumar'; 'Hansson Henrik'; Yuki Arif (JA/EID); 
> juniper-nsp at puck.nether.net
> Subject: RE: [j-nsp] altconfig and altroot
> 
> 
> Try:
> 
> root at Montreal% df
> Filesystem  512-blocks     Used    Avail Capacity  Mounted on
> /dev/ad0s1a     158174    57280    88242    39%    /
> devfs               32       32        0   100%    /dev/
> /dev/vn0         20040    20040        0   100%    /packages/mnt/jbase
> devfs               32       32        0   100%    /dev/
> /dev/vn1         51796    51796        0   100%
> /packages/mnt/jkernel-6.1B3.3
> /dev/vn2         17120    17120        0   100%
> /packages/mnt/jpfe-M10-6.1B3.3
> /dev/vn3          3844     3844        0   100%
> /packages/mnt/jdocs-6.1B3.3
> /dev/vn4         23328    23328        0   100%
> /packages/mnt/jroute-6.1B3.3
> /dev/vn5          8832     8832        0   100%
> /packages/mnt/jcrypto-6.1B3.3
> mfs:2285       1524446       10  1402482     0%    /tmp
> /dev/ad0s1e      23742       12    21832     0%    /config
> procfs               8        8        0   100%    /proc
> /dev/ad1s1f   14312104  2272972 10894164    17%    /var
> root at Montreal% mount /altroot
> root at Montreal% df
> Filesystem  512-blocks     Used    Avail Capacity  Mounted on
> /dev/ad0s1a     158174    57280    88242    39%    /
> devfs               32       32        0   100%    /dev/
> /dev/vn0         20040    20040        0   100%    /packages/mnt/jbase
> devfs               32       32        0   100%    /dev/
> /dev/vn1         51796    51796        0   100%
> /packages/mnt/jkernel-6.1B3.3
> /dev/vn2         17120    17120        0   100%
> /packages/mnt/jpfe-M10-6.1B3.3
> /dev/vn3          3844     3844        0   100%
> /packages/mnt/jdocs-6.1B3.3
> /dev/vn4         23328    23328        0   100%
> /packages/mnt/jroute-6.1B3.3
> /dev/vn5          8832     8832        0   100%
> /packages/mnt/jcrypto-6.1B3.3
> mfs:2285       1524446       10  1402482     0%    /tmp
> /dev/ad0s1e      23742       12    21832     0%    /config
> procfs               8        8        0   100%    /proc
> /dev/ad1s1f   14312104  2272972 10894164    17%    /var
> /dev/ad1s1a     146510    64538    70252    48%    /altroot
> 
> Snapshot mounts the /altroot and /altconfig partitions, and 
> then copies the contents of the / and /config partitions from 
> the boot device, which is
> *normally* the flash, so that you can later boot from the 
> "other" device, which is normally the hard drive. Reverse if 
> you have booted from the hard drive.
> 
> HTHS
> 
> 
> 
> > -----Original Message-----
> > From: juniper-nsp-bounces at puck.nether.net
> > [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of 
> > Harshit Kumar
> > Sent: Thursday, April 22, 2004 10:46 AM
> > To: Hansson Henrik; Yuki Arif (JA/EID); juniper-nsp at puck.nether.net
> > Subject: RE: [j-nsp] altconfig and altroot
> > 
> > 
> > define "trick" ? :)
> > 
> > AFAIK, it doesn't mount the directories for you...
> > 
> > - Harshit
> > 
> > >-----Original Message-----
> > >From: Hansson Henrik [mailto:Henrik.Hansson at telenor.se]
> > >Sent: Thursday, April 22, 2004 4:29 AM
> > >To: Harshit Kumar; Yuki Arif (JA/EID); juniper-nsp at puck.nether.net
> > >Subject: SV: [j-nsp] altconfig and altroot
> > >
> > >
> > >
> > >"request system snapshot" will do the trick.
> > >
> > >
> > >/Henrik
> > >
> > > 
> > >
> > >> -----Ursprungligt meddelande-----
> > >> Från: Harshit Kumar [mailto:harshit at juniper.net]
> > >> Skickat: den 22 april 2004 06:11
> > >> Till: Yuki Arif (JA/EID); juniper-nsp at puck.nether.net
> > >> Ämne: RE: [j-nsp] altconfig and altroot
> > >> 
> > >> Hi Yuki,
> > >> 
> > >> /altroot and /altconfig are stored on the disk and not mounted 
> > >> automatically.
> > >> 
> > >> BR,
> > >> Harshit
> > >> 
> > >> >-----Original Message-----
> > >> >From: juniper-nsp-bounces at puck.nether.net
> > >> >[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of
> > Yuki Arif
> > >> >(JA/EID)
> > >> >Sent: Wednesday, April 21, 2004 7:34 PM
> > >> >To: 'juniper-nsp at puck.nether.net'
> > >> >Subject: [j-nsp] altconfig and altroot
> > >> >
> > >> >Hello,
> > >> > 
> > >> >I am a newbie in Juniper Router.
> > >> > 
> > >> >I have Juniper M10.
> > >> > 
> > >> >I did an upgrade of JunOS from 5.6R1.3 to 6.2R1.5
> > >> > 
> > >> >Before I did an upgrade I did "request system snapshot" and the 
> > >> >snapshot is saved in /altroot and /altconfig.
> > >> > 
> > >> >When I do "start shell" from cli and "df -k" I don't see
> > >> /altroot and
> > >> >/altconfig. Are these directories not mounted ?
> > >> > 
> > >> >How can I see these directories ?
> > >> > 
> > >> >% df -k
> > >> >Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
> > >> >/dev/ad0s1a    109345    30284    70314    30%    /
> > >> >devfs              16       16        0   100%    /dev/
> > >> >/dev/vn0        10950    10950        0   100%    
> > >/packages/mnt/jbase
> > >> >/dev/vn1        34204    34204        0   100%    
> > >> >/packages/mnt/jkernel-6.2R1.5
> > >> >/dev/vn2         8804     8804        0   100%    
> > >> >/packages/mnt/jpfe-M10-6.2R1.5
> > >> >/dev/vn3         2054     2054        0   100%    
> > >> >/packages/mnt/jdocs-6.2R1.5
> > >> >/dev/vn4        13444    13444        0   100%    
> > >> >/packages/mnt/jroute-6.2R1.5
> > >> >mfs:127       1524335        3  1402386     0%    /tmp
> > >> >/dev/ad0s1e     12117       24    11124     0%    /config
> > >> >procfs              4        4        0   100%    /proc
> > >> >/dev/ad1s1f  17287463   277622 15626844     2%    /var
> > >> >%
> > >> >%
> > >> >%
> > >> > 
> > >> > 
> > >> >After the upgrade I did not do "request system snapshot",
> > so I have
> > >> >6.2R1.5 running on the flash and 5.6R1.3 on the hard disk.
> > >> > 
> > >> >Is there a command to see/check JunOS version in the hard disk ?
> > >> > 
> > >> > 
> > >> >Thanks in advance
> > >> > 
> > >> > 
> > >> > 
> > >> >Best Regards
> > >> > 
> > >> >__________________________________________________
> > >> >
> > >> >Yuki Arif
> > >> >
> > >> >
> > >> > 
> > >> >
> > >> > 
> > >> >_______________________________________________
> > >> >juniper-nsp mailing list juniper-nsp at puck.nether.net 
> > >> >http://puck.nether.net/mailman/listinfo/juniper-nsp
> > >> >
> > >> >
> > >> 
> > >> _______________________________________________
> > >> juniper-nsp mailing list juniper-nsp at puck.nether.net 
> > >> http://puck.nether.net/mailman/listinfo/juniper-nsp
> > >> 
> > >> 
> > >
> > >
> > 
> > _______________________________________________
> > juniper-nsp mailing list juniper-nsp at puck.nether.net
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> > 
> 
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