# Error: SubstrateService(Other("Failed to build a full subspace node: IO Error")) **URL:** \ **Category:** Support\ **Tags:** gemini\ **Created:** [June 1, 2022, 11:22pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175 "2022-06-01T23:22:51Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![SeryogaLeshii](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/seryogaleshii/32/551_2.png) [@SeryogaLeshii](https://forum.autonomys.xyz/u/SeryogaLeshii)\ **Post date:** [June 1, 2022, 11:22pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/1 "2022-06-01T23:22:51Z")
```auto Error: SubstrateService(Other("Failed to build a full subspace node: IO Error")) 2022-05-31 20:14:06 Subspace 2022-05-31 20:14:06 ✌️ version 0.1.0-unknown 2022-05-31 20:14:06 ❤️ by Subspace Labs , 2021-2022 2022-05-31 20:14:06 📋 Chain specification: Subspace Gemini 1 2022-05-31 20:14:06 🏷 Node name: DEMonk 2022-05-31 20:14:06 👤 Role: AUTHORITY 2022-05-31 20:14:06 💾 Database: ParityDb at /home/subspace/.local/share/subspace/node/chains/subspace_gemini_1a/paritydb/full 2022-05-31 20:14:06 ⛓ Native runtime: subspace-0 (subspace-0.tx0.au0) ``` I have a lot of free space on disk. I have read/write permission. I have built it from source, but error also occurs when using the pre-built binary. I use this command to start node: ```bash subspace-node --chain gemini-1 --execution wasm --base-path /home/subspace/.local/share/subspace/node --pruning 1024 --keep-blocks 1024 --validator --in-peers=512 --out-peers=512 --name DEMonk ``` I’m using Arch Linux x86\_64. Logs from the pre-built binary: ```auto Error: SubstrateService(Other("Failed to build a full subspace node: IO Error")) 2022-06-01 23:27:38 Subspace 2022-06-01 23:27:38 ✌️ version 0.1.0-38eb757fe63 2022-06-01 23:27:38 ❤️ by Subspace Labs , 2021-2022 2022-06-01 23:27:38 📋 Chain specification: Subspace Gemini 1 2022-06-01 23:27:38 🏷 Node name: DEMonk 2022-06-01 23:27:38 👤 Role: AUTHORITY 2022-06-01 23:27:38 💾 Database: ParityDb at /home/subspace/.local/share/subspace/node/chains/subspace_gemini_1a/paritydb/full 2022-06-01 23:27:38 ⛓ Native runtime: subspace-0 (subspace-0.tx0.au0) ``` Error occurs after this system call: ```auto futex(0x7fc6506272d0, FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME, 276623, NULL, FUTEX_BITSET_MATCH_ANY) = -1 EAGAIN (Resource temporarily unavailable) ``` I noticed that the error only appears with the `--chain gemini-1` flag ---
**Author:** ![nazar-pc](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/nazar-pc/32/6_2.png) [@nazar-pc](https://forum.autonomys.xyz/u/nazar-pc)\ **Post date:** [June 2, 2022, 6:30pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/2 "2022-06-02T18:30:38Z")
Does `/home/subspace/.local/share/subspace` already exist? Node will only create a directory on one level. The default is `/home/subspace/.local/share/subspace-node`, which should be acceptable I think. Also why do you want customize it if it is not a secret? ---
**Author:** ![SeryogaLeshii](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/seryogaleshii/32/551_2.png) [@SeryogaLeshii](https://forum.autonomys.xyz/u/SeryogaLeshii)\ **Post date:** [June 2, 2022, 6:34pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/3 "2022-06-02T18:34:00Z")
Yes. Directory is exists. I am using a separate drive for the Subspace node which I have mounted to this directory. ---
**Author:** ![nazar-pc](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/nazar-pc/32/6_2.png) [@nazar-pc](https://forum.autonomys.xyz/u/nazar-pc)\ **Post date:** [June 2, 2022, 6:41pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/4 "2022-06-02T18:41:20Z")
Then check permissions, it might not be able to write there ---
**Author:** ![SeryogaLeshii](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/seryogaleshii/32/551_2.png) [@SeryogaLeshii](https://forum.autonomys.xyz/u/SeryogaLeshii)\ **Post date:** [June 2, 2022, 8:15pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/5 "2022-06-02T20:15:22Z")
So. I was able to get more detailed error output thanks to the 2eadfd4228918fe39fa472ed98a67bab925f888c commit. Error: ```nohighlight Error: SubstrateService(Other("Failed to build a full subspace node: Sub(Telemetry(IoError(Custom { kind: Other, error: \"Error parsing resolv.conf: InvalidOption(3)\" })))")) ``` If you have an unknown error, then try switching to the desired commit: ```bash git checkout 2eadfd4228918fe39fa472ed98a67bab925f888c ``` The cause of the error itself was the presence of the `trust-ad` option in `resolv.conf` Example: ```nohighlight options edns0 trust-ad ``` Thanks everyone for the help! ---
**Author:** ![SubspaceChaD](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/subspacechad/32/201_2.png) [@SubspaceChaD](https://forum.autonomys.xyz/u/SubspaceChaD)\ **Post date:** [June 14, 2022, 9:17pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/7 "2022-06-14T21:17:58Z")
Hello SubspaceChad here, Running on MacOS, trying to connect to an external hard drive. Having trouble with the terminal. I have to run on CLI because the desktop app doesn’t update with the available storage. I’ve attached the screenshots of the errors that keep coming up for the farmer and the node in terminal. Any help? Please and thank you. ![Screen Shot 2022-06-14 at 3.57.25 PM](https://canada1.discourse-cdn.com/flex011/uploads/subspace/original/1X/1606a9f4e1f470890a35ec76e6f970e0ea060e95.png) ---
**Author:** ![SubspaceChaD](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/subspacechad/32/201_2.png) [@SubspaceChaD](https://forum.autonomys.xyz/u/SubspaceChaD)\ **Post date:** [June 14, 2022, 9:18pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/8 "2022-06-14T21:18:44Z")
![Screen Shot 2022-06-14 at 3.57.34 PM](https://canada1.discourse-cdn.com/flex011/uploads/subspace/original/1X/9e8982c69f1f54a6bc42d872f1b182ef7a2dae65.jpeg) ---
**Author:** ![ImmaZoni](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/immazoni/32/7_2.png) [@ImmaZoni](https://forum.autonomys.xyz/u/ImmaZoni)\ **Post date:** [June 14, 2022, 9:58pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/9 "2022-06-14T21:58:16Z")
You will want to ensure the volume has proper permissions to be written to by Subspace node and farmer. Its generally best to just allow the drive to be written to by anyone ---
**Author:** ![ryan.yy.yeung](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.autonomys.xyz/ryan.yy.yeung/32/326_2.png) [@ryan.yy.yeung](https://forum.autonomys.xyz/u/ryan.yy.yeung)\ **Post date:** [June 15, 2022, 11:36pm UTC](https://forum.autonomys.xyz/t/error-substrateservice-other-failed-to-build-a-full-subspace-node-io-error/175/10 "2022-06-15T23:36:48Z")
[https://docs.subspace.network/protocol/farm/farming/](https://docs.subspace.network/protocol/farm/farming/) Step 3 of the farming instructions may help. I am going to create a new post about your issue, please discuss further errors there. > [@Permission Denied Error](https://forum.autonomys.xyz/t/permission-denied-error/370): > > Separate post for @SubspaceChaD error. “Running on MacOS, trying to connect to an external hard drive. Having trouble with the terminal. I have to run on CLI because the desktop app doesn’t update with the available storage. I’ve attached the screenshots of the errors that keep coming up for the farmer and the node in terminal. Any help? Please and thank you.”