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Silly Question Time: Boot from Flash: or Compact Flash (Slot0:)?

mghampel52
Beginner
Beginner

If I have both options available to me...what is the "best practice" for booting?  From flash or compact flash?

I've always booted from flash but inherited some 3725s that were set to slot0:.

6 Replies 6

Alvaro Garcia
Beginner
Beginner

I would suggest to keep a copy of the IOS on both, but confgure the router to boot from compact flash.

Jon Marshall
VIP Community Legend VIP Community Legend
VIP Community Legend

Personally the times i use compact flash are -

1) when there is no onboard flash (obviously )

2) when the onboard flash is not big enough for the image (common issue with 6500s)

If you have onboard flash and it will hold the image i would always use that if for not other reason than it removes the possibility of someone removing the compact flash card in which case when the device is rebooted it can't load an image.

Jon

mghampel52
Beginner
Beginner

I am upgrading the IOS on the devices and hav