[j-nsp] snapshot problem with just hard drive config
harry at juniper.net
Thu Mar 11 21:06:15 EST 2004
You need to buy the optional flash for snapshot to work. Once installed it
will become the default boot source. When booted from the flash you can run
the snapshot command to mirror the flash environment onto the HD. Now, if
the flash fails, or upon your command, the router will boot from the HD.
Normally folks run a snapshot just before doing major software upgrades, say
a jinstall from 5.x to 6.x. This leaves you (hopefully) with a default boot
into 6.x on the flash and a snapshot image of the old 5.x environment in
case things do not go well with the new code, or you just want a "dual boot"
If you do boot from the HD, a snapshot will mirror that environment back to
BTW: The M7i and M10i base systems do not contain flash, or removable PCMCIA
media for that matter. This was done to reduce costs.
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of LOM
> Sent: Thursday, March 11, 2004 5:31 PM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] snapshot problem with just hard drive config
> Hi folks,
> I have a snapshot problem.
> I have a M7i with an only disk drive , there is no flash card.
> When I request a system snapshot it says :
> rasmus at edi> request system snapshot
> Snapshot requires two pieces of storage media.
> error: This is a hard disk only configuration, snapshot not supported.
> I know that snapshot is just copying "/" to "altroot/ and
> also "/config" "/altconfig" , am I wrong ?
> Why it need 2 pieces of storage media? Is there a way that I
> can get snapshot ?
> Do you have an idea,
> thanks for all,
> PS : show system storage output :
> rasmus at edi> show system storage
> Filesystem 512-blocks Used Avail Capacity Mounted on
> /dev/ad1s1a 437522 64274 338248 16% /
> devfs 32 32 0 100% /dev/
> /dev/vn0 21900 21900 0 100%
> /dev/vn1 68408 68408 0 100%
> /dev/vn2 17680 17680 0 100%
> /dev/vn3 4108 4108 0 100%
> /dev/vn4 26888 26888 0 100%
> /dev/vn5 9432 9432 0 100%
> mfs:153 1016286 6 934978 0% /tmp
> /dev/ad1s1e 48570 50 44636 0% /config
> procfs 8 8 0 100% /proc
> /dev/ad1s1f 36364494 811950 32643386 2% /var
> rasmus at edi>
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