I believe using seal encryption causes a different code path to be taken that avoids the underlying bug but it is not the presence or absence of seal encryption in and of itself that I believe fixes the issue.

After a kernel upgrade this works fine without seal encryption though I have now enabled it as it seems like a good idea to have anyway so making it the default is probably a good idea but as long as Ubuntu 22.04's default kernel version is 5.15.0-102 this issue will likely still occur.

@necrevistonnezr The article made it sound like running sudo apt update && sudo apt full-upgrade would get the update and this was back in 2023 so wouldn't we already have it given that cloudron runs apt to do updates periodically?

apt full-upgrade is non-standard and not run by Cloudron, I believe.

@necrevistonnezr Thank you for pointing me in the right direction to be able to use the HWE kernel to bypass this bug.

I also didn't see anything that would update the kernel in the output of sudo apt upgrade listed in my post above. The article also indicated that this would be included in new ISO's but this server was just installed from a freshly downloaded iso about a month ago so it doesn't seem to be included in recent ISOs either.

I am about to run cp -r /backups/2024-04-11-161325-365 /mnt/volumes/43cfcd99b751486ea8b2f56a194eb88b

Given that the snapshot directories are different in the local /backups folder vs the remote /mnt/volumes/43cfcd99b751486ea8b2f56a194eb88b is that going to cause an issue now or later when I switch back to using the original cifs share as the backup destination?

After that completes I will work on copying that over to /mnt/cloudronbackup

@skeats ps, if you want to paste logs I recommend putting ``` on a new line before the log output and ``` on the line after the log output and then the system will format it with a fixed width font and make it easier to read. Same thing when including commands inline by adding ` at the start of the command and ` at the end of the command so that ps -a turns into ps -a. You can try it out by editing your previous posts if you want to try it.

I have run sudo apt-get update and then run sudo apt upgrade but didn't say yes just to see what packages would be upgraded and I didn't see anything that would be upgrading the kernel:

cmagnuson@cloudron2:~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
Get more security updates through Ubuntu Pro with 'esm-apps' enabled:
  libjs-jquery-ui python3-scipy
Learn more about Ubuntu Pro at https://ubuntu.com/pro
The following NEW packages will be installed:
  ubuntu-pro-client
The following packages will be upgraded:
  apt apt-utils collectd collectd-core collectd-utils coreutils ethtool firmware-sof-signed libapt-pkg6.0 libcollectdclient1 libldap-2.5-0 libldap-common libwbclient0 python3-update-manager snapd ubuntu-advantage-tools ubuntu-pro-client-l10n update-manager-core update-notifier-common
19 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 32.5 MB of archives.
After this operation, 1,268 kB disk space will be freed.
Do you want to continue? [Y/n] ^C

At this point it seems like a work around is needed to be able to bypass the df check or do something else to be able to get backups while waiting for ubuntu to release an update to the kernel they include.

I am going to try to reconfigured backups to go to local storage and them manually copy them over to the mountpoint so that at least I can get a backup for today.

@skeats Can you run uname -r to confirm what kernel version you are on?

[Unit]
Description=cloudronbackup

Requires=unbound.service
After=unbound.service
Before=docker.service

[Mount]
What=//192.168.100.130/Backups/Backup/Cloudron Backup
Where=/mnt/cloudronbackup
Options=credentials=/home/yellowtent/platformdata/cifs/mnt-cloudronbackup.cred,rw,iocharset=utf8,file_mode=0666,dir_mode=0777,uid=yellowtent,gid=yellowtent
Type=cifs

[Install]
WantedBy=multi-user.target

That is the correct setup with my local Truenas File Server. I went onto my Truenas File Server and made sure SMB1 (CIFS) was enabled on the SAMBA service to rule that out. I did a reboot of my Cloudron server and tried again with the same issue. Weird thing, is that if I go to Backups and click the Remount Storage button, I still remounts and the green indicator is there.

[   17.363373] FS-Cache: Loaded
[   17.385124] FS-Cache: Netfs 'cifs' registered for caching
[   17.387237] Key type cifs.spnego registered
[   17.387248] Key type cifs.idmap registered
[   17.387569] CIFS: No dialect specified on mount. Default has changed to a more secure dialect, SMB2.1 or later (e.g. SMB3.1.1), from CIFS (SMB1). To use the less secure SMB1 dialect to access old servers which do not support SMB3.1.1 (or even SMB3 or SMB2.1) specify vers=1.0 on mount.
[   17.387571] CIFS: Attempting to mount \\actweb.magnusonfinancial.com\cloudronbackup
[   17.387634] CIFS: Attempting to mount \\actweb.magnusonfinancial.com\paperless-ngx
[   17.387651] CIFS: Attempting to mount \\actweb.magnusonfinancial.com\Files
[   17.388884] FS-Cache: Duplicate cookie detected
[   17.388999] FS-Cache: O-cookie c=00000003 [p=00000002 fl=222 nc=0 na=1]
[   17.389090] FS-Cache: O-cookie d=0000000061788d75{CIFS.server} n=0000000086d54d7c
[   17.389210] FS-Cache: O-key=[8] '020001bdc0a82034'
[   17.389312] FS-Cache: N-cookie c=00000004 [p=00000002 fl=2 nc=0 na=1]
[   17.389406] FS-Cache: N-cookie d=0000000061788d75{CIFS.server} n=00000000d0a48889
[   17.389515] FS-Cache: N-key=[8] '020001bdc0a82034'
[   17.389629] FS-Cache: Duplicate cookie detected
[   17.389720] FS-Cache: O-cookie c=00000003 [p=00000002 fl=222 nc=0 na=1]
[   17.389817] FS-Cache: O-cookie d=0000000061788d75{CIFS.server} n=0000000086d54d7c
[   17.389906] FS-Cache: O-key=[8] '020001bdc0a82034'
[   17.390004] FS-Cache: N-cookie c=00000005 [p=00000002 fl=2 nc=0 na=1]
[   17.390099] FS-Cache: N-cookie d=0000000061788d75{CIFS.server} n=0000000058b3c043
[   17.390190] FS-Cache: N-key=[8] '020001bdc0a82034'

cmagnuson@cloudron2:/mnt/cloudronbackup/2024-04-05-000000-649$ df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup
df: /mnt/cloudronbackup: Resource temporarily unavailable

[no timestamp] 
[no timestamp]  at ChildProcess.<anonymous> (/home/yellowtent/box/src/shell.js:110:19)
[no timestamp]  at ChildProcess._handle.onexit (node:internal/child_process:291:12) {
[no timestamp]  at ChildProcess.emit (node:events:513:28)
[no timestamp]  at async backupAppWithTag (/home/yellowtent/box/src/backuptask.js:382:5)
[no timestamp]  at async fullBackup (/home/yellowtent/box/src/backuptask.js:503:29)
[no timestamp]  at async uploadAppSnapshot (/home/yellowtent/box/src/backuptask.js:360:5)
[no timestamp]  at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
[no timestamp]  at runBackupUpload (/home/yellowtent/box/src/backuptask.js:165:15)
[no timestamp]  code: 50,
[no timestamp]  details: {},
[no timestamp]  reason: 'Shell Error',
[no timestamp]  signal: null
Apr 11 11:18:08 box:taskworker Starting task 12097. Logs are at /home/yellowtent/platformdata/logs/tasks/12097.log
Apr 11 11:18:08 box:tasks update 12097: {"percent":1,"message":"Backing up magnusonfinancialwebservices.cloudron.magnusonfinancial.com (1/19)"}
Apr 11 11:18:08 box:tasks update 12097: {"percent":5.545454545454546,"message":"Snapshotting app magnusonfinancialwebservices.cloudron.magnusonfinancial.com"}
Apr 11 11:18:08 box:services Backing up mongodb
Apr 11 11:18:08 box:services backupAddons
Apr 11 11:18:08 box:services backupAddons: backing up ["localstorage","mongodb","postgresql"]
Apr 11 11:18:09 box:services pipeRequestToFile: connected with status code 200
Apr 11 11:18:09 box:services Backing up postgresql
Apr 11 11:18:09 box:services pipeRequestToFile: connected with status code 200
Apr 11 11:18:14 box:backuptask snapshotApp: magnusonfinancialwebservices.cloudron.magnusonfinancial.com took 5.731 seconds
Apr 11 11:18:14 box:tasks update 12097: {"percent":5.545454545454546,"message":"Uploading app snapshot magnusonfinancialwebservices.cloudron.magnusonfinancial.com"}
Apr 11 11:18:14 box:backuptask runBackupUpload: adjusting heap size to 2048M
Apr 11 11:18:14 box:shell backup-snapshot/app_14252669-7b77-404a-b08a-500e405138aa /usr/bin/sudo -S -E --close-from=4 /home/yellowtent/box/src/scripts/backupupload.js snapshot/app_14252669-7b77-404a-b08a-500e405138aa tgz {"localRoot":"/home/yellowtent/appsdata/14252669-7b77-404a-b08a-500e405138aa","layout":[]}
Apr 11 11:18:15 box:backuptask runBackupUpload: result - {"result":"Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup\ndf: /mnt/cloudronbackup: Resource temporarily unavailable\n"}
Apr 11 11:18:15 box:shell backup-snapshot/app_14252669-7b77-404a-b08a-500e405138aa: /usr/bin/sudo -S -E --close-from=4 /home/yellowtent/box/src/scripts/backupupload.js snapshot/app_14252669-7b77-404a-b08a-500e405138aa tgz {"localRoot":"/home/yellowtent/appsdata/14252669-7b77-404a-b08a-500e405138aa","layout":[]} errored BoxError: backup-snapshot/app_14252669-7b77-404a-b08a-500e405138aa exited with code 50 signal null
Apr 11 11:18:15 box:taskworker Task took 6.184 seconds
Apr 11 11:18:15 box:tasks setCompleted - 12097: {"result":null,"error":{"stack":"BoxError: Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup\ndf: /mnt/cloudronbackup: Resource temporarily unavailable\n\n at runBackupUpload (/home/yellowtent/box/src/backuptask.js:165:15)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async uploadAppSnapshot (/home/yellowtent/box/src/backuptask.js:360:5)\n at async backupAppWithTag (/home/yellowtent/box/src/backuptask.js:382:5)\n at async fullBackup (/home/yellowtent/box/src/backuptask.js:503:29)","name":"BoxError","reason":"External Error","details":{},"message":"Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup\ndf: /mnt/cloudronbackup: Resource temporarily unavailable\n"}}
Apr 11 11:18:15 box:tasks update 12097: {"percent":100,"result":null,"error":{"stack":"BoxError: Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup\ndf: /mnt/cloudronbackup: Resource temporarily unavailable\n\n at runBackupUpload (/home/yellowtent/box/src/backuptask.js:165:15)\n at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n at async uploadAppSnapshot (/home/yellowtent/box/src/backuptask.js:360:5)\n at async backupAppWithTag (/home/yellowtent/box/src/backuptask.js:382:5)\n at async fullBackup (/home/yellowtent/box/src/backuptask.js:503:29)","name":"BoxError","reason":"External Error","details":{},"message":"Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup\ndf: /mnt/cloudronbackup: Resource temporarily unavailable\n"}}
[no timestamp]  Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup
[no timestamp]  /mnt/cloudronbackup: Resource temporarily unavailable
[no timestamp]  }

The same Error when checking for disk space: Error running df: file errored with code 1 message Command failed: df -B1 --output=source,fstype,size,used,avail,pcent,target /mnt/cloudronbackup df: /mnt/cloudronbackup: Resource temporarily unavailable is listed in the web interface.

We are running cloudron 7.7.2 and Ubuntu 22.04.

I have rebooted, ssh'ed in and confirmed that I can access the backup mountpoint, list files, go into different backup folders, etc.