Lubuntu long boot on Inspiron 1525

Problem

I installed Lubuntu 18.04, the LXDE variant of Ubuntu, on an old Dell Inspiron 1525 laptop. It worked, but every bootup would take several long minutes.

Solution

Turns out that this is a known problem for this Dell laptop reported here. I followed these steps:

  • Opened Grub config file:
$ sudo vi /etc/default/grub
  • Change the Grub commandline option to be:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=SVIDEO-1:d"
  • Update Grub and reboot:
$ sudo update-grub
$ sudo reboot

Boot time dropped dramatically to about a minute after this change.

No medium found error with Lubuntu

Problem

I was trying to install Lubuntu 18.04, the LXDE variants of Ubuntu, on an old Dell Inspiron 1525 laptop. After booting from a thumbdrive and choosing to Install Lubuntu, there were hundreds of lines of this output:

/init: line 7: can't open /dev/sr0: No medium found

At the end of that, it ends by dropping to the Busybox initramfs shell prompt.

Solution

Thanks to this Ubuntu bug report, I tried one of these solutions: the moment the above line started printing, I yanked out the thumbdrive and plugged it back into a different USB port. This laptop has 4 USB ports, so I was able to do this easily. Once I did that the error prints stopped and the install proceeded.