Mysterious 8 second delay in boot after grub

asked 2016-02-16 19:21:49 -0500

crxssi gravatar image

updated 2016-02-16 19:56:20 -0500

mether gravatar image

I have installed Fedora 23 (KDE spin) on an HP Prodesk mini 600 G2. There is one problem I can't quite figure out, though.... after grub comes up, I press <enter> on any kernel to boot, the screen goes black with a blinking underscore cursor and then there is a mysterious 8 second delay. There is no hard drive/SSD activity during that period. Then after, BAM, there is a flurry of activity over the next 4 seconds and it is finished booting. Try as I may, I can't figure out what that delay is. But I know it shouldn't be there. Even if it were just waiting on something, if I had SOME message telling me what it is doing, that would be helpful. I am doing nothing special. No RAID, no encryption, just two partitions (root and swap).

Things that made no difference: I uninstalled Plymouth.I tried UEFI vs. Legacy. I tried a Fedora live boot DVD instead of booting from the SDD install. I tried same thing with USB key boot. Disabled a bunch of stuff like abrtd and ModemManager. Removed the "quiet" flag in the kernel invocation. Rebuilt with dracut. I even tried booting 23 on our Lenovo laptops (a totally different machine with different chipset and other hardware) and on some Intel NUC's and had the same delay. On our Intel NUC, using Fedora 21, there is the same delay but only 4 seconds (???!!!) But if I try a different distro, like Archbang, there is no such delay at all.

I thought maybe "systemd-analyze" would help, but it doesn't show that delay... it says "4.3 seconds" which is the time AFTER the 8 second delay.... further indicating the delay is after/during grub but before loading the kernel. My Internet searching has produced nothing. Even if I can't get rid of the delay, having some message on the screen would be useful because it looks like the machine is dead during that period. Any help or ideas appreciated. Thanks

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I have that same issue! (along with this... ). What version of Windows came with your computer (if any)? Because some newer BIOS's are dependent on Windows (they want to have Windows installed to boot). Your BIOS might be looking for a Windows partition? I am just guessing... I also didn't have issues when using arch linux. I started having delays/errors after I removed Windows. Here is a thread I started with my issue if it helps:

elvisn gravatar imageelvisn ( 2016-02-22 22:43:37 -0500 )edit