NAS310: old usb died, can I use internal HDD only? (no replies)

Hi,

the usb stick of my NAS310 doesn't boot anymore.

/sbin/init[   25.656033][    T1] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00
[   25.665135][    T1] CPU: 0 PID: 1 Comm: init Not tainted 5.5.1-kirkwood-tld-1 #1.0
[   25.672732][    T1] Hardware name: Marvell Kirkwood (Flattened Device Tree)
[   25.679756][    T1] [<8010f668>] (unwind_backtrace) from [<8010b9f4>] (show_stack+0x10/0x14)
[   25.688238][    T1] [<8010b9f4>] (show_stack) from [<80119e8c>] (panic+0xfc/0x328)
[   25.695851][    T1] [<80119e8c>] (panic) from [<8011bc4c>] (do_exit+0x1b4/0xa24)
[   25.703287][    T1] [<8011bc4c>] (do_exit) from [<8011d280>] (do_group_exit+0x54/0xe0)
[   25.711248][    T1] [<8011d280>] (do_group_exit) from [<8011d31c>] (sys_exit_group+0x10/0x14)
[   25.719820][    T1] [<8011d31c>] (sys_exit_group) from [<80101000>] (ret_fast_syscall+0x0/0x50)
[   25.728559][    T1] Exception stack(0x8ec3dfa8 to 0x8ec3dff0)
[   25.734336][    T1] dfa0:                   76f2ac18 76f330a0 0000007f 7ebe4530 0000007f 00000000
[   25.743249][    T1] dfc0: 76f2ac18 76f330a0 76f33078 000000f8 76f2ab0c 6fffffff 76f3c970 76f32918
[   25.752157][    T1] dfe0: 7ebe4e94 7ebe476c 76f235f0 76f25314
[   25.757941][    T1] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00 ]---
: /lib/arm-linux-gnueabi/libpthread.so.0: unsupported version 0 of Verdef record
/sbin/init: error while loading shared libraries: /lib/arm-linux-gnueabi/libpthread.so.0: unsupported version 0 of Verneed record

fck.ext4 shows 31 bad blocks (read). So I am assuming that's the issue.

The question is now: Do I need to buy another USB stick (and have it fail again in a year or two) or can I install debian on the internal HDD? I can't remember anymore why it wasn't on the HDD in the first place.

Very happy for any help, thanks!