Increase RAMdisk for /dev/md0 in embedded system

[cgukevin]

I am wondering if it is possible to increase the Ramdisk allocation for /dev/md0 of embedded system for future release.

I am force to use the full OS right now because embedded OS could only give me a little more than 6MB in /dev/md0. When Transmission is downloading/uploading large torrent, the space is not enough to hold temporary files in /usr/home/transmission/.config/transmission-daemon/torrents or resume.

[raulfg3]

you have the answer in viewtopic.php?f=47&t=2483&p=12790#p12790

You need to configure Path for partial downloads in transsmision to point to your DATA disk.

[cgukevin]

I have already direct the partial downloads to /mnt/ZFS/downloads/incoming. But temporary files generated by transmission is something different. They were automatically generated in "/usr/home/transmission/.config/transmission-daemon/torrents" and "/usr/home/transmission/.config/transmission-daemon/resume", and I don't think I can change that. Do you have an idea?

[alexey123]

I not have such problem with embedded.
Why?
I mount /usr from data disk

Code: Select all

mkdir -p /mnt/disk/opt/usr

And run postinit script, defined on System|Advanced|Command scripts -menu

Code: Select all

mount_unionfs /mnt/disk/opt/usr /usr

[cgukevin]

Thanks, alexey123! Will try it later.

[alexey123]

If you make mount var also, you can add packages to embedded
mkdir -p /mnt/disk/opt/var
Startup script

Code: Select all

mount_unionfs /mnt/disk/opt/var /var
chmod 1777 /var/tmp

When you need upgrade nas4free, just disable scripts and reboot before upgrade server. After upgrade - enable scripts

[cgukevin]

Is there any disadvantage of embedded OS against full OS left?

[alexey123]

not quite
Sometimes I want to change any file in /etc folder, but I can't mount /etc some as /var and /usr

[MikeMac]

I'd like to vote for md0 size increase
Current size is from old times with different memory amounts.
Today nearly all of us have a few gigabytes of memory and easy could give more memory to /dev/md0 on /
I, f.e. had installed 16Gb of RAM

After all, with full installtion there is choise of partition size for installation. Why do not give the same choise for emdedded?
With add dozen of megabytes at / nas4free embedded becomes far more flexible system.

Or, as the other way, there is varsize in rc.conf section. Someting similar for / could be a solution.

Best regards, Mike

PS Why I am asking for it? Really I d like to mount webDAV disk from a Yandex cloud. And then rsync to it my backups.
I need fusefs-wdfs, but could not instll one to embedded due to space limit

I had tried with jail too, but due to permissons problem could not install fusefs-wdfs

mount_unionfs /mnt/disk/opt/usr /usr is not an option too. I had installed virtualbox extension. But one could not co-exists with other mount_unionfs mounts for system folders.