# Proxmox snapshot rollback not working **URL:** \ **Category:** General\ **Tags:** drbd, proxmox\ **Created:** [September 30, 2025, 4:07pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017 "2025-09-30T16:07:26Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Delgado](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@Delgado](https://forums.linbit.com/u/Delgado)\ **Post date:** [September 30, 2025, 4:07pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017/1 "2025-09-30T16:07:26Z")
Hello, I have started experiencing issues with snapshot rollbacks. I am not sure what the problem may be. I tried rolling back my kernel version, as I recently upgraded it, but the problem is still present. I am not really sure if this is a Linstor or Proxmox issue. I have attached the log. ```auto root@pve-03:~# dpkg -l | grep linstor ii linstor-client 1.26.1-1 all Linstor client command line tool ii linstor-common 1.32.1-1 all DRBD distributed resource management utility ii linstor-controller 1.32.1-1 all DRBD distributed resource management utility ii linstor-gui 1.9.9-1 all Administration GUI for LINSTOR clusters. ii linstor-proxmox 8.1.3-1 all DRBD distributed resource management utility ii linstor-satellite 1.32.1-1 all DRBD distributed resource management utility ii python-linstor 1.26.1-1 all Linstor python api library root@pve-03:~# dpkg -l | grep drbd ii drbd-dkms 9.2.15-1 all RAID 1 over TCP/IP for Linux module source ii drbd-reactor 1.9.0-1 amd64 Monitors DRBD resources via plugins. ii drbd-utils 9.32.0-1 amd64 RAID 1 over TCP/IP for Linux (user utilities) root@pve-03:~# uname -a Linux pve-01 6.14.11-3-pve #1 SMP PREEMPT_DYNAMIC PMX 6.14.11-3 (2025-09-22T10:13Z) x86_64 GNU/Linux modinfo drbd | grep ^version version: 9.2.15 ``` ```auto TASK ERROR: API Return-Code: 500. Message: Could not rollback cluster wide snapshot snap_pm-45d8fa00_snap-1 of pm-45d8fa00, because: [{"ret_code":34340867,"message":"Snapshot 'snap_pm-45d8fa00_snap-1' of resource 'pm-45d8fa00' marked down for rollback.","obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:33.307468723-04:00"},{"ret_code":36962307,"message":"(pve-02) Resource 'pm-45d8fa00' [DRBD] adjusted.","obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:33.368380764-04:00"},{"ret_code":34340867,"message":"Deactivated resource 'pm-45d8fa00' on 'pve-02' for rollback","obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:33.368497176-04:00"},{"ret_code":36962307,"message":"(pve-01) Resource 'pm-45d8fa00' [DRBD] adjusted.","obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:33.405882104-04:00"},{"ret_code":34340867,"message":"Deactivated resource 'pm-45d8fa00' on 'pve-01' for rollback","obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:33.405999321-04:00"},{"ret_code":-4611686018393046042,"message":"(pve-03) Error executing lsblk.","error_report_ids":["68DBE2C9-249FF-000027"],"obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:34.460052562-04:00"},{"ret_code":34340867,"message":"Rollback of 'pm-45d8fa00' aborted due to error deactivating","obj_refs":{"RscDfn":"pm-45d8fa00","Snapshot":"snap_pm-45d8fa00_snap-1"},"created_at":"2025-09-30T10:29:34.58835522-04:00"}] at /usr/share/perl5/PVE/Storage/Custom/LINSTORPlugin.pm line 633. PVE::Storage::Custom::LINSTORPlugin::volume_snapshot_rollback("PVE::Storage::Custom::LINSTORPlugin", HASH(0x57ce6069dfc8), "linstor", "pm-45d8fa00_120", "snap-1") called at /usr/share/perl5/PVE/Storage.pm line 451 PVE::Storage::volume_snapshot_rollback(HASH(0x57ce606683b8), "linstor:pm-45d8fa00_120", "snap-1") called at /usr/share/perl5/PVE/QemuConfig.pm line 503 PVE::QemuConfig::__snapshot_rollback_vol_rollback("PVE::QemuConfig", HASH(0x57ce5a2ac4e8), "snap-1") called at /usr/share/perl5/PVE/AbstractConfig.pm line 1208 PVE::AbstractConfig::__ANON__("scsi0", HASH(0x57ce5a2ac4e8)) called at /usr/share/perl5/PVE/AbstractConfig.pm line 483 PVE::AbstractConfig::foreach_volume_full("PVE::QemuConfig", HASH(0x57ce606a8048), undef, CODE(0x57ce57d3be28)) called at /usr/share/perl5/PVE/AbstractConfig.pm line 492 PVE::AbstractConfig::foreach_volume("PVE::QemuConfig", HASH(0x57ce606a8048), CODE(0x57ce57d3be28)) called at /usr/share/perl5/PVE/AbstractConfig.pm line 1210 PVE::AbstractConfig::snapshot_rollback("PVE::QemuConfig", 120, "snap-1") called at /usr/share/perl5/PVE/API2/Qemu.pm line 6207 PVE::API2::Qemu::__ANON__() called at /usr/share/perl5/PVE/Tools.pm line 270 eval {...} called at /usr/share/perl5/PVE/Tools.pm line 270 PVE::Tools::lock_file_full("/var/lock/pve-manager/pve-migrate-120", 10, 0, CODE(0x57ce606a8510)) called at /usr/share/perl5/PVE/Tools.pm line 278 PVE::Tools::lock_file("/var/lock/pve-manager/pve-migrate-120", 10, CODE(0x57ce606a8510)) called at /usr/share/perl5/PVE/GuestHelpers.pm line 93 PVE::GuestHelpers::guest_migration_lock(120, 10, CODE(0x57ce606a8510)) called at /usr/share/perl5/PVE/API2/Qemu.pm line 6216 PVE::API2::Qemu::__ANON__("UPID:pve-03:00006205:00028D9E:68DBE94D:qmrollback:120:danielg"...) called at /usr/share/perl5/PVE/RESTEnvironment.pm line 630 eval {...} called at /usr/share/perl5/PVE/RESTEnvironment.pm line 621 PVE::RESTEnvironment::fork_worker(PVE::RPCEnvironment=HASH(0x57ce5a2a8af8), "qmrollback", 120, "danielgaraventa\@Authentik", CODE(0x57ce606bc808)) called at /usr/share/perl5/PVE/API2/Qemu.pm line 6219 PVE::API2::Qemu::__ANON__(HASH(0x57ce6069a1d0)) called at /usr/share/perl5/PVE/RESTHandler.pm line 503 PVE::RESTHandler::handle("PVE::API2::Qemu", HASH(0x57ce5e4f0438), HASH(0x57ce6069a1d0)) called at /usr/share/perl5/PVE/HTTPServer.pm line 187 eval {...} called at /usr/share/perl5/PVE/HTTPServer.pm line 143 PVE::HTTPServer::rest_handler(PVE::HTTPServer=HASH(0x57ce57d3ca10), "::ffff:172.16.0.11", "POST", "/nodes/pve-03/qemu/120/snapshot/snap-1/rollback", HASH(0x57ce60699c60), HASH(0x57ce606a8ab0), "extjs") called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 980 eval {...} called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 950 PVE::APIServer::AnyEvent::handle_api2_request(PVE::HTTPServer=HASH(0x57ce57d3ca10), HASH(0x57ce60681b20), HASH(0x57ce60699c60), "POST", "/api2/extjs/nodes/pve-03/qemu/120/snapshot/snap-1/rollback") called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1224 eval {...} called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1216 PVE::APIServer::AnyEvent::handle_request(PVE::HTTPServer=HASH(0x57ce57d3ca10), HASH(0x57ce60681b20), HASH(0x57ce60699c60), "POST", "/api2/extjs/nodes/pve-03/qemu/120/snapshot/snap-1/rollback") called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1721 PVE::APIServer::AnyEvent::authenticate_and_handle_request(PVE::HTTPServer=HASH(0x57ce57d3ca10), HASH(0x57ce60681b20)) called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1423 eval {...} called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 1406 PVE::APIServer::AnyEvent::__ANON__(AnyEvent::Handle=HASH(0x57ce6069dc38), "", "\x{d}\x{a}") called at /usr/lib/x86_64-linux-gnu/perl5/5.40/AnyEvent/Handle.pm line 1541 AnyEvent::Handle::__ANON__(AnyEvent::Handle=HASH(0x57ce6069dc38)) called at /usr/lib/x86_64-linux-gnu/perl5/5.40/AnyEvent/Handle.pm line 1315 AnyEvent::Handle::_drain_rbuf(AnyEvent::Handle=HASH(0x57ce6069dc38)) called at /usr/lib/x86_64-linux-gnu/perl5/5.40/AnyEvent/Handle.pm line 2015 AnyEvent::Handle::__ANON__() called at /usr/lib/x86_64-linux-gnu/perl5/5.40/AnyEvent/Loop.pm line 248 AnyEvent::Loop::one_event() called at /usr/lib/x86_64-linux-gnu/perl5/5.40/AnyEvent/Impl/Perl.pm line 46 AnyEvent::CondVar::Base::_wait(AnyEvent::CondVar=HASH(0x57ce5a28b640)) called at /usr/lib/x86_64-linux-gnu/perl5/5.40/AnyEvent.pm line 2034 AnyEvent::CondVar::Base::recv(AnyEvent::CondVar=HASH(0x57ce5a28b640)) called at /usr/share/perl5/PVE/APIServer/AnyEvent.pm line 2064 PVE::APIServer::AnyEvent::run(PVE::HTTPServer=HASH(0x57ce57d3ca10)) called at /usr/share/perl5/PVE/Service/pvedaemon.pm line 56 PVE::Service::pvedaemon::run(PVE::Service::pvedaemon=HASH(0x57ce60580a20)) called at /usr/share/perl5/PVE/Daemon.pm line 171 eval {...} called at /usr/share/perl5/PVE/Daemon.pm line 171 PVE::Daemon::__ANON__(PVE::Service::pvedaemon=HASH(0x57ce60580a20)) called at /usr/share/perl5/PVE/Daemon.pm line 390 eval {...} called at /usr/share/perl5/PVE/Daemon.pm line 379 PVE::Daemon::__ANON__(PVE::Service::pvedaemon=HASH(0x57ce60580a20), undef) called at /usr/share/perl5/PVE/Daemon.pm line 549 eval {...} called at /usr/share/perl5/PVE/Daemon.pm line 547 PVE::Daemon::start(PVE::Service::pvedaemon=HASH(0x57ce60580a20), undef) called at /usr/share/perl5/PVE/Daemon.pm line 657 PVE::Daemon::__ANON__(HASH(0x57ce57d33a28)) called at /usr/share/perl5/PVE/RESTHandler.pm line 503 PVE::RESTHandler::handle("PVE::Service::pvedaemon", HASH(0x57ce60580d68), HASH(0x57ce57d33a28), 1) called at /usr/share/perl5/PVE/RESTHandler.pm line 1005 eval {...} called at /usr/share/perl5/PVE/RESTHandler.pm line 986 PVE::RESTHandler::cli_handler("PVE::Service::pvedaemon", "pvedaemon start", "start", ARRAY(0x57ce58040278), ARRAY(0x57ce60581410), undef, undef, undef) called at /usr/share/perl5/PVE/CLIHandler.pm line 624 PVE::CLIHandler::__ANON__(ARRAY(0x57ce57d34220), CODE(0x57ce58132b40), undef) called at /usr/share/perl5/PVE/CLIHandler.pm line 705 PVE::CLIHandler::run_cli_handler("PVE::Service::pvedaemon", "prepare", CODE(0x57ce58132b40)) called at /usr/bin/pvedaemon line 27 ``` ---
**Author:** ![Delgado](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@Delgado](https://forums.linbit.com/u/Delgado)\ **Post date:** [September 30, 2025, 7:18pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017/2 "2025-09-30T19:18:52Z")
I tried downgrading drbd-dkms, drbd-utils, and linstor-proxmox to the version right before the versions listed above, but that didnt seem to help. ---
**Author:** ![Devin](https://yyz1.discourse-cdn.com/flex003/user_avatar/forums.linbit.com/devin/32/26_2.png) [@Devin](https://forums.linbit.com/u/Devin)\ **Post date:** [September 30, 2025, 9:55pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017/3 "2025-09-30T21:55:26Z")
Is there any error within the LINSTOR logs on either the controller or Satellite? Any LINSTOR error reports recorded that seem relevant (`linstor err list`)? If so, could you share the contents of those as well? ---
**Author:** ![Delgado](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@Delgado](https://forums.linbit.com/u/Delgado)\ **Post date:** [September 30, 2025, 11:49pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017/4 "2025-09-30T23:49:14Z")
I regenerated the from a fresh snap and attempted rollback ERROR REPORT 68DC2EA3-8B928-000005 ============================================================ Application: LINBIT® LINSTOR Module: Satellite Version: 1.32.1 Build ID: e04f98efc3aeb643cf109ffd322a4f2506000da1 Build time: 2025-09-16T09:03:12+00:00 Error time: 2025-09-30 18:53:55 Node: pve-02 Thread: DeviceManager ============================================================ Reported error: =============== Category: LinStorException Class name: StorageException Class canonical name: com.linbit.linstor.storage.StorageException Generated at: Method ‘checkExitCode’, Source file ‘ExtCmdUtils.java’, Line #70 Error message: Failed to query symlinks of device /dev/drbd1039 Error context: ``` An error occurred while processing resource 'Node: 'pve-02', Rsc: 'pm-88065fdc'' ``` ErrorContext: Details: Command ‘udevadm info -q symlink /dev/drbd1039’ returned with exitcode 1. Standard out: Error message: Unknown device “/dev/drbd1039”: No such device Call backtrace: ``` Method Native Class:Line number checkExitCode N com.linbit.extproc.ExtCmdUtils:70 genericExecutor N com.linbit.linstor.storage.utils.Commands:108 genericExecutor N com.linbit.linstor.storage.utils.Commands:68 genericExecutor N com.linbit.linstor.storage.utils.Commands:56 getSymlinks N com.linbit.linstor.core.UdevHandler:43 updateDeviceSymlinks N com.linbit.linstor.core.devmgr.DeviceHandlerImpl:1593 processResources N com.linbit.linstor.core.devmgr.DeviceHandlerImpl:430 dispatchResources N com.linbit.linstor.core.devmgr.DeviceHandlerImpl:222 dispatchResources N com.linbit.linstor.core.devmgr.DeviceManagerImpl:334 phaseDispatchDeviceHandlers N com.linbit.linstor.core.devmgr.DeviceManagerImpl:1140 devMgrLoop N com.linbit.linstor.core.devmgr.DeviceManagerImpl:779 run N com.linbit.linstor.core.devmgr.DeviceManagerImpl:675 run N java.lang.Thread:1583 ``` END OF ERROR REPORT. What is strange is I see the device. root@pve-02:~# ls -la /dev/drbd1039 brw-rw---- 1 root disk 147, 1039 Sep 30 19:03 /dev/drbd1039 ---
**Author:** ![Delgado](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@Delgado](https://forums.linbit.com/u/Delgado)\ **Post date:** [October 1, 2025, 5:36pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017/5 "2025-10-01T17:36:21Z")
@Devin I found this github issue. It seems to be throwing the same error and my backend storage in proxmox is ZFS. [Can't rollback ZFS snapshot in a single node environment · Issue #464 · LINBIT/linstor-server · GitHub](https://github.com/LINBIT/linstor-server/issues/464) ---
**Author:** ![Delgado](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@Delgado](https://forums.linbit.com/u/Delgado)\ **Post date:** [October 13, 2025, 2:14pm UTC](https://forums.linbit.com/t/proxmox-snapshot-rollback-not-working/1017/6 "2025-10-13T14:14:52Z")
I can confirm snapshot rollbacks are working again in Proxmox after the above fix was released.