# Update was not successful because of Filesystem I/O Error: No current.rootfs, not safe to prune

**URL:** https://community.start9.com/t/update-was-not-successful-because-of-filesystem-i-o-error-no-current-rootfs-not-safe-to-prune/5814
**Category:** StartOS Support
**Created:** [October 6, 2026, 12:25pm UTC](https://community.start9.com/t/update-was-not-successful-because-of-filesystem-i-o-error-no-current-rootfs-not-safe-to-prune/5814 "2026-10-06T12:25:48Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![veganic](https://community.start9.com/letter_avatar_proxy/v4/letter/v/3ec8ea/32.png) [@veganic](https://community.start9.com/u/veganic)
#### Post date: [October 6, 2026, 12:25pm UTC](https://community.start9.com/t/update-was-not-successful-because-of-filesystem-i-o-error-no-current-rootfs-not-safe-to-prune/5814/1 "2026-10-06T12:25:48Z")

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I’m on version 0.4.0.0 after upgrading from 0.3.5.1 months ago.

When attempting to upgrade to the latest version 4.0.2 I get the error:

`Update was not successful because of Filesystem I/O Error: No current.rootfs, not safe to prune`

I am running quite a lot of packages: bitcoin knots, fulcrum, next cloud, monero node, p2pool, etc

Is a fresh installation the only way to get around this?

Afaik the backup doesn’t backup the full nodes data. I’d really rather not have to sync my nodes again! 😔

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<div class="post-metadata">

### Author: ![veganic](https://community.start9.com/letter_avatar_proxy/v4/letter/v/3ec8ea/32.png) [@veganic](https://community.start9.com/u/veganic)
#### Post date: [October 6, 2026, 12:29pm UTC](https://community.start9.com/t/update-was-not-successful-because-of-filesystem-i-o-error-no-current-rootfs-not-safe-to-prune/5814/2 "2026-10-06T12:29:35Z")

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I am tempted to not upgrade. What’s the worse that can happen?

How long until the server will “go up in flames” due to obsolescence?

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<div class="post-metadata">

### Author: ![tradenet](https://community.start9.com/user_avatar/community.start9.com/tradenet/32/901_2.png) [@tradenet](https://community.start9.com/u/tradenet)
#### Post date: [October 6, 2026, 2:18pm UTC](https://community.start9.com/t/update-was-not-successful-because-of-filesystem-i-o-error-no-current-rootfs-not-safe-to-prune/5814/3 "2026-10-06T14:18:21Z")

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Is it version 0.4.0.1? Rather than v.04.0.0.

I haven’t tried yet. Kind of waiting to see what shakes out. I think if I upgrade, I’d shut down all the apps.

BTW, put in a bug report at github. Just a suggestion.

On that note, I see bug reports and issues rolling in on that update.

Hmmm…