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Old 01-21-2013, 05:19 AM
Fab30 Fab30 is offline
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Default Swap,fstab

Hi, please, how can i configure autostart swap file on SD card?
is on /dev/sdb1. THX
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Old 01-21-2013, 09:00 AM
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joegreat joegreat is offline
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Exclamation How to setup a swap partition?

Quote:
Originally Posted by Fab30 View Post
Hi, please, how can i configure autostart swap file on SD card?
is on /dev/sdb1. THX
Hi,

First: SDcard for swap is not a good idea - search the forum why this is so!

Secound: As your router has a kind of Linux installed you can use the standard Linux commands for the job!
You need to partition your USB device with fdisk command to have a swap partition, then you can use swapon command to enable the swap.

With Merlin's firmware you can enable it automatically via user-script (e.g. pre-mount wloud be a good place).

So: Some searching in the forum and Google will give you all you need!
And: You will learn real(!) Linux.

With kind regards
Joe
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Old 07-12-2014, 01:39 AM
brusyev brusyev is offline
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Default

I am in the same boat where my router constantly runs out of resources when I sync files to my drive attached to RTN66U. I also have a class 10 sd card installed inside the router. I searched the forum and did not find any posts to why it is bad to use it as swap...I tried to implement pre-mount scipt and was not able to get it to work....I do have my SD card formated as ext2...

Last edited by brusyev; 07-12-2014 at 01:42 AM.
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Old 07-16-2014, 02:58 PM
lwizard lwizard is offline
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Default

Generally it's a bed idea because flash memories have a limited RW life. So a SWAP partition on them makes their life much shorter.
But if the memory is cheap I think you could consider giving a try (but I don't know whether a read failure on SWAP could bring a crash in linux or not).

Also if you set a swap partition in linux you must avoid formatting it. Another option is to format it and use a swap file.
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