A familiy member asked me if I could look at a USB flash drive with valuable content that didn't work on the Mac. Thought I could try it on my Linux machine with more tools to work with. But I can't get anything out of it. Not listed in fdisk -l, not listed in blkid. However I do find traces of it with dmesg:[    0.829225] xhci_hcd 0000:00:14.0: xHCI Host Controller[    0.829230] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1[    0.830380] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x00109810[    0.830385] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported[    0.836824] xhci_hcd 0000:00:14.0: xHCI Host Controller[    0.836826] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2[    1.211540] usb 1-2: new high-speed USB device number 2 using xhci_hcd[    1.568206] usb 1-5: new high-speed USB device number 3 using xhci_hcd[    1.968193] usb 1-7: new full-speed USB device number 4 using xhci_hcd[  141.038788] usb 1-2: reset high-speed USB device number 2 using xhci_hcd[  141.528193] usb 1-2: new high-speed USB device number 5 using xhci_hcdBut I don't know where to go from here, or if this info is useful at all. Searched the web, but I am stuck. Any help is greatly appreciated. I should add that they said they used some program on the MacBook to write to the disk. Not a conventional file manager.
How to read seemingly dead USB flash drive
arch linux;usb;flash memory;removable storage