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av8er71
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PostPosted: Tue Oct 21, 2014 10:57 pm    Post subject: New installation hangs on "waiting on udev events" Reply with quote

After a long absence I decided to toy with Linux again. My previous experience was with Red Hat, Fedora, and Ubuntu. I'm brand new to Gentoo. I did the install following the Gentoo Handbook. I used genkernel to start figuring it would be easier to get things rolling. I had no problems or errors during the install so I thought everything was fine. The system boots ok, and doesn't give any errors at all, just hangs and does nothing when it gets to the "waiting on udev events" prompt. Through reading the forums I tried a few things, the first was to disable udev to see if it will boot ok, and it did, but then my mouse and keyboard were non responsive. That led me to believe that it was a piece of hardware that was causing the issue. Removing them and trying to boot did not work.

I'm thinking that it may be a missing kernel module that didn't I install? I've tried to research what I need for my specific devices, but I couldn't really find anything very informative. I did install a system logger, but being that the system just hangs on udev events I don't think that any logs are even generated at this point. Any suggestions on where to go from here? I'm not above doing research, just at a loss what to do next.
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djdunn
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PostPosted: Wed Oct 22, 2014 5:43 am    Post subject: Reply with quote

I bet its actually going past that point but for some reason the screen is not getting updated.

to determine what kernel modules you need you can use this website.

http://kmuto.jp/debian/hcl/

take the output of
Code:
lspci -n

you may need to emerge pciutils to get lspci
and input it in that website and it will tell you what drivers you need to enable in the kernel.

If its getting to that point you are definitely going to have logs, going back into a chroot from the install medium that you used will let you read them, probably at /var/log/messages if your using openrc
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Roman_Gruber
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PostPosted: Wed Oct 22, 2014 7:32 am    Post subject: Reply with quote

My box also hanged for around a minute with uevents is beeing processed.

the solution was to ditch udev and switch over to eudev.

Personal note: udev seems to be in evil with systemd which caused the fuss.

for instructions check => https://forums.gentoo.org/viewtopic-t-998108-postdays-0-postorder-asc-start-500.html

My post from PostPosted: Fri Oct 17, 2014 12:43 pm Post subject: , page 21

I explained the symptoms there and what i did to get rid of it
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av8er71
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PostPosted: Wed Oct 22, 2014 3:32 pm    Post subject: Reply with quote

Thank you, both. I will look into those things this evening. Much appreciated.
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av8er71
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PostPosted: Thu Oct 23, 2014 2:37 am    Post subject: Reply with quote

djdunn wrote:
I bet its actually going past that point but for some reason the screen is not getting updated.

to determine what kernel modules you need you can use this website.

http://kmuto.jp/debian/hcl/

take the output of
Code:
lspci -n

you may need to emerge pciutils to get lspci
and input it in that website and it will tell you what drivers you need to enable in the kernel.

If its getting to that point you are definitely going to have logs, going back into a chroot from the install medium that you used will let you read them, probably at /var/log/messages if your using openrc


Ok, I went to that site. it gave me the following output:

Code:

PCI ID   Works?   Vendor   Device   Driver   Kernel
10229601      Advanced Micro Devices [AMD]   RS880 Host Bridge      
10229603      Advanced Micro Devices [AMD]   RS780 PCI to PCI bridge (ext gfx port 0)      
10229609      Advanced Micro Devices [AMD]   RS780/RS880 PCI to PCI bridge (PCIE port 5)      
10024392   Yes   Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 SATA Controller [Non-RAID5 mode]   ahci   v2.6.25-
10024397      Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 USB OHCI0 Controller      
10024398      Advanced Micro Devices [AMD] nee ATI   SB7x0 USB OHCI1 Controller      
10024396      Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 USB EHCI Controller      
10024397      Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 USB OHCI0 Controller      
10024398      Advanced Micro Devices [AMD] nee ATI   SB7x0 USB OHCI1 Controller      
10024396      Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 USB EHCI Controller      
10024385   Yes   Advanced Micro Devices [AMD] nee ATI   SBx00 SMBus Controller   i2c-piix4,sp5100_tco   v2.6.25-
10024383   Yes   Advanced Micro Devices [AMD] nee ATI   SBx00 Azalia (Intel HDA)   snd-hda-intel   v2.6.25-
1002439d      Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 LPC host controller      
10024384      Advanced Micro Devices [AMD] nee ATI   SBx00 PCI to PCI Bridge      
10024399      Advanced Micro Devices [AMD] nee ATI   SB7x0/SB8x0/SB9x0 USB OHCI2 Controller      
10221200      Advanced Micro Devices [AMD]   Family 10h Processor HyperTransport Configuration      
10221201      Advanced Micro Devices [AMD]   Family 10h Processor Address Map      
10221202   Yes   Advanced Micro Devices [AMD]   Family 10h Processor DRAM Controller   amd64_edac_mod   v3.2.35-
10221203   Yes   Advanced Micro Devices [AMD]   Family 10h Processor Miscellaneous Control   k10temp   v2.6.33-
10221204      Advanced Micro Devices [AMD]   Family 10h Processor Link Control      
10029442   Yes   Advanced Micro Devices [AMD] nee ATI   RV770 [Radeon HD 4850]   radeon   v2.6.35-
1002aa30   Yes   Advanced Micro Devices [AMD] nee ATI   RV770 HDMI Audio [Radeon HD 4850/4870]   snd-hda-intel   v2.6.25-
10ec8168   Yes   Realtek Semiconductor Co., Ltd.   RTL8111/8168 PCI Express Gigabit Ethernet controller   r8169   v2.6.25-
11063044   Yes   VIA Technologies, Inc.   VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller   ohci1394


Only a few of the devices listed had modules shown. I did add them in /etc/conf.d/modules but the system still hangs on udev events.
Back to the drawing board. I'm going to look into what the other guy said and see if that has any merit.
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av8er71
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PostPosted: Thu Oct 23, 2014 2:38 am    Post subject: Reply with quote

tw04l124 wrote:
My box also hanged for around a minute with uevents is beeing processed.

the solution was to ditch udev and switch over to eudev.

Personal note: udev seems to be in evil with systemd which caused the fuss.

for instructions check => https://forums.gentoo.org/viewtopic-t-998108-postdays-0-postorder-asc-start-500.html

My post from PostPosted: Fri Oct 17, 2014 12:43 pm Post subject: , page 21

I explained the symptoms there and what i did to get rid of it


My system doesn't just hang for a minute, it doesn't get past udev events, I'm gonna look into this though.
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DONAHUE
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PostPosted: Thu Oct 23, 2014 3:53 am    Post subject: Reply with quote

from the chroot,
Code:
 emerge linux-firmware wgetpaste
wgetpaste /var/log/dmesg
(/var/log/dmesg may not exist) if you get a url from pastebin, post it here
reboot to the installed gentoo
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av8er71
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PostPosted: Thu Oct 23, 2014 3:57 am    Post subject: Reply with quote

DONAHUE wrote:
from the chroot,
Code:
 emerge linux-firmware wgetpaste
wgetpaste /var/log/dmesg
(/var/log/dmesg may not exist) if you get a url from pastebin, post it here
reboot to the installed gentoo


I really appreciate the response, but after 4 days of trying to troubleshoot I got fed up and installed Calculate, which is working flawlessly so far. I'm gonna pick up a spare machine and give Gentoo a try again in the near future. Thanks again.
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PostPosted: Thu Oct 23, 2014 12:11 pm    Post subject: Reply with quote

I hope i am not too late.

Last week i was installing from scratch gentoo ( new computer ) and also had this problem.

Its because of my video card, radeon 7770. It would just hang on that message also. Just doing a bootup with nomodeset ( or removing the radeon module so it doesnt autoload ) fixed it.

After configuring kernel properly ( include latest and correct firmware for radeon in kernel like in the gentoo wiki said ) it worked properly.
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jfranz2
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PostPosted: Sat Oct 25, 2014 9:36 am    Post subject: Reply with quote

I had this problem with Arch and Gentoo with my AMD radeon card.

Add nomodeset to your kernel params. I was forced to use ati-drivers, which I was planning to use anyway, but still.

My card is an AMD Radeon HD 7850, It seems the entire 7000 series are affected by this.

I should also note, you might not get any input response without installing the following packages:

x11-drivers/xf86-input-mouse
x11-drivers/xf86-input-keyboard
x11-drivers/xf86-input-evdev
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yagami
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PostPosted: Sat Oct 25, 2014 12:51 pm    Post subject: Reply with quote

jfranz2 wrote:
I had this problem with Arch and Gentoo with my AMD radeon card.

Add nomodeset to your kernel params. I was forced to use ati-drivers, which I was planning to use anyway, but still.

My card is an AMD Radeon HD 7850, It seems the entire 7000 series are affected by this.

I should also note, you might not get any input response without installing the following packages:

x11-drivers/xf86-input-mouse
x11-drivers/xf86-input-keyboard
x11-drivers/xf86-input-evdev


It isnt affected, but at least on gentoo, it won't work "out of the box". It wont work until you add the necessary firmware to the kernel config.

On arch, dunno about proper arch, but on Manjaro works.

Strangelly, tried kubuntu 14.10 yesterday, and it works very badly, system is always freezing ( with open source drivers ).
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BlueFusion
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PostPosted: Sat Oct 25, 2014 3:04 pm    Post subject: Reply with quote

I experienced this problem when using the Marvel SAS controller on my motherboard (mvsas module). Disable that if it's there and isn't required. Additionally, I had the issue another time when I had my nvidia module built with no Suspend-to-RAM support, and I compiled that option into my kernel at a later time. A quick re-compilation of nvidia-drivers fixed the issue.
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