NixOS-iso vs Nixos installed - connect external HDD (usb2)

Hello,

when using the nixos-iso live system, it is possible to connect an external hdd via usb
But on the installed version of nixos it is not possible.

How to figure out what the difference is on the iso?


dmesg from nixos-live-iso (works fine)

usb 1-5: new high-speed USB device number 8 using xhci_hcd
usb 1-5: New USB device found, idVendor=1058, idProduct=070b, bcdDevice=20.18
usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-5: Product: My Passport 070B
usb 1-5: Manufacturer: Western Digital
usb 1-5: SerialNumber: 575846304141393330383135
usb-storage 1-5:1.0: USB Mass Storage device detected
scsi host5: usb-storage 1-5:1.0
scsi 5:0:0:0: Direct-Access     WD       My Passport 070B 2018 PQ: 0 ANSI: 4
sd 5:0:0:0: [sdb] 1248890880 512-byte logical blocks: (639 GB/596 GiB)
sd 5:0:0:0: [sdb] Write Protect is off
sd 5:0:0:0: [sdb] Mode Sense: 2b 00 10 08
scsi 5:0:0:1: CD-ROM            WD       Virtual CD 070B  2018 PQ: 0 ANSI: 4
sd 5:0:0:0: [sdb] No Caching mode page found
sd 5:0:0:0: [sdb] Assuming drive cache: write through
sr 5:0:0:1: [sr1] scsi3-mmc drive: 51x/51x caddy
sr 5:0:0:1: Attached scsi CD-ROM sr1
 sdb: sdb1
scsi 5:0:0:2: Enclosure         WD       SES Device       2018 PQ: 0 ANSI: 4
sd 5:0:0:0: [sdb] Attached SCSI disk
scsi 5:0:0:2: Wrong diagnostic page; asked for 1 got 8
scsi 5:0:0:2: Failed to get diagnostic page 0x1
scsi 5:0:0:2: Failed to bind enclosure -19
ses 5:0:0:2: Attached Enclosure device
fuse: init (API version 7.31)

dmesg from installed nixos (does not work)

usb 1-5: new high-speed USB device number 7 using xhci_hcd
usb 1-5: New USB device found, idVendor=1058, idProduct=070b, bcdDevice=20.18
usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-5: Product: My Passport 070B
usb 1-5: Manufacturer: Western Digital
usb 1-5: SerialNumber: 575846304141393330383135
usb-storage 1-5:1.0: USB Mass Storage device detected
scsi host4: usb-storage 1-5:1.0
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver uas
scsi 4:0:0:0: Direct-Access     WD       My Passport 070B 2018 PQ: 0 ANSI: 4
scsi 4:0:0:1: CD-ROM            WD       Virtual CD 070B  2018 PQ: 0 ANSI: 4
sr 4:0:0:1: [sr1] scsi3-mmc drive: 51x/51x caddy
sd 4:0:0:0: [sda] 1248890880 512-byte logical blocks: (639 GB/596 GiB)
sd 4:0:0:0: [sda] Write Protect is off
sd 4:0:0:0: [sda] Mode Sense: 2b 00 10 08
sd 4:0:0:0: [sda] No Caching mode page found
sd 4:0:0:0: [sda] Assuming drive cache: write through
sr 4:0:0:1: Attached scsi CD-ROM sr1
scsi 4:0:0:2: Enclosure         WD       SES Device       2018 PQ: 0 ANSI: 4
 sda: sda1
scsi 4:0:0:2: Wrong diagnostic page; asked for 1 got 8
scsi 4:0:0:2: Failed to get diagnostic page 0x1
scsi 4:0:0:2: Failed to bind enclosure -19
sd 4:0:0:0: [sda] Attached SCSI disk
ses 4:0:0:2: Attached Enclosure device
ntfs: driver 2.1.32 [Flags: R/O MODULE].
__ntfs_error: 205 callbacks suppressed
ntfs: (device sda1): parse_options(): Unrecognized mount option windows_names.
ntfs: (device sda1): parse_options(): Unrecognized mount option windows_names.