Hey guys, I just setup my router to use a 8gb USB for extra storage, and I'm wondering if it's possible to resize the partition to include 2GB of swap storage. I have an Archer A7 V5 with Openwrt 19.07
It should be possible, but you can simply use a swap file:
Uh, so I went and ran the commands, but this happened:
root@OpenWrt:~# mkswap /overlay/upper/swap mkswap: can't open '/overlay/upper/swap': No such file or directory root@OpenWrt:~# root@OpenWrt:~# uci -q delete fstab.swap root@OpenWrt:~# uci set fstab.swap="swap" root@OpenWrt:~# uci set fstab.swap.device="/overlay/swap" root@OpenWrt:~# uci commit fstab root@OpenWrt:~# /etc/init.d/fstab boot
Is that bad that mkswap couldn't make the file and the rest of the commands ran?
It should be:
I've updated the wiki.
Oh no, it went and formatted over my system backup drive <_> What do I do now???
OH wait wait, I misread the value as megabytes instead of bytes
Alrighty, so it made the swap file. Is that all I have to do for it?
free; cat /proc/swaps
Here ya go
root@OpenWrt:~# free; cat /proc/swaps total used free shared buff/cache available Mem: 124520 34100 31104 280 59316 46716 Swap: 102396 0 102396 Filename Type Size Used Priority /overlay/swap file 102396 0 -2
It's suppose to look like that right?
Yep, looks fine.
Oh, out of curiosity, is it possible to make the swap file larger?
swapoff /overlay/swap dd if=/dev/zero of=/overlay/swap bs=1M count=500 mkswap /overlay/swap swapon /overlay/swap
Hi, does enabling swapping as explained in 'Extroot configuration' guide has the same functionality as the zram-swap script? or that script meant to create a swap partition that is interacting with zram?
No, but a similar purpose.
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