[j-nsp] altconfig and altroot

Yuki Arif (JA/EID) yuki.arif at ericsson.com
Thu Apr 22 23:52:07 EDT 2004


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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