external disk weirdness

[oshunluvr]

So the USB port goes to sleep and doesn't wake up - makes sense with what you're seeing. Have you tried other ports and/or checked your BIOS settings?

It might be helpful to boot from power off, then copy the boot.log and syslog, then reboot (assuming the problem re-occurs) and then compare logs to see if some function or step is missing from reboot.

[oshunluvr]

You might ry booting with this option to disable USB power management:

usbcore.autosuspend=-1

[przxqgl]

So the USB port goes to sleep and doesn't wake up - makes sense with what you're seeing. Have you tried other ports

i have two USB ports in back, and four in front, and they all do the same thing... however, they are all available, except for /backup, when i reboot, so i don't think they're going to sleep...

checked your BIOS settings? .

what would i look for?

It might be helpful to boot from power off, then copy the boot.log and syslog, then reboot (assuming the problem re-occurs) and then compare logs to see if some function or step is missing from reboot.

where do i find the boot.log and syslog? what do i look for?

You might ry booting with this option to disable USB power management:

usbcore.autosuspend=-1

how do i boot with that option?

sorry if i seem dense... actually, i have quite a bit of computer experience, but it's all with mac and windoesn't...

[oshunluvr]

Log files are in /var/log

You can test the boot option in grub by stopping the boot, editing the grub stanza, and adding the option where it says "quiet splash". This will not be permanent. To make a permanent change to your boot options, edit /etc/default/grub and add it to the line like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.autosuspend=-1"


then run sudo update-grub.