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Old 22nd November 2009, 04:27 PM
dismalscience Offline
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Join Date: Nov 2009
Posts: 3
30 seconds of no activity during boot sequence

I have been enjoying Fedora 11 for sometime, and decided to try Fedora 12. All in all it is working, but the boot sequence seemed much slower. I decided to use bootchart to examine the boot process on my old F11 and new F12 installations. The result show F11 booting in ~34 seconds, and F12 booting in ~57 seconds. Interestingly, the first 30 seconds show that only kthreadd, khelper, and ata/0 are running. CPU and disk utilization are both zero during this 30 seconds span, then all of a sudden everything starts loading, CPU and Disk utilization spike up, and ~23 seconds later I get to the login screen. I sent an email to Harald Hoyer about this, and to my surprise he was kind enough to respond. He suggested I check the BIOS to make sure I had disabled the floppy drive, which I did. The problem persists, so I was wondering if anyone here was having a similar issue and if so how they have dealt with it.
I have blacklisted the floppy module (just to make sure) but this does not seem to help. Any thoughts?
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Old 23rd November 2009, 10:34 AM
damartin Offline
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Join Date: Sep 2007
Posts: 14
I had similar issues and found that my "pause" was due to have so many parttitions (I have 8 SATA drives that i partitioned into 10 partitions each and striped the RAID5 devices over these). Removing the partitions and the pause went away - I never solved this - just reduced the number of partitions in the end.
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Old 23rd November 2009, 12:05 PM
Gödel Offline
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Join Date: Jul 2009
Location: London,England
Posts: 1,103
do you have anything suspicious in dmesg? (eg 'dmesg | grep error')

Do you have an intel graphics adapter? I am seeing a 10 second delay at boot, with a blank screen, then a "drm:i915_handle_error", then it boot normally into plymouth. I didn't see this at Fedora 12 beta.

Want to investigate further, but I am not seeing many reports of similar issues.

Edit: Well, I got my boot time back down to ~20 secs, but I'm not sure what exactly fixed it!

I suspected modesetting and/or the drm driver error with i915 was a problem, so I blacklisted i915, drm and drm_kms_helper (in /etc/modprobe/blacklist.conf) and rebuilt the initramfs

cp /boot/initramfs-$(uname -r).img .
sudo dracut --force /boot/initramfs-$(uname -r).img $(uname -r)
Then added 'nomodeset' to the kernel boot line and the reboot was much faster, the attached images show an improvement from ~80secs to ~20secs which is staggering, it didn't seem that great a difference. With 'nomodeset' option removed the boot time was 2-3secs slower.

The thing is, I copied the original initramfs back and it still boots as quick! So I removed the blacklisted modules from blacklist.conf, and rebuilt the initramfs again, and it still boots fast! So what's going on, I've fixed the annoying boot delay I had, but I'm not sure how, just by rebuilding the initramfs with dracut? Blacklisting modules doesn't seem to matter.

(for bootchart images, do 'yum install bootchart', then add 'init=/sbin/bootchartd' to kernel boot line, then after booting type 'bootchart')
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Last edited by Gödel; 23rd November 2009 at 06:35 PM.
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Old 24th November 2009, 04:08 AM
fuege Offline
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Join Date: Nov 2009
Posts: 6

I can confirm the OP. After a yum upgrade from F11 to F12, I got around 30 seconds delay. (You don't wanna know about the grand total of my boot time on my 11 year old PIII box ...).


bootchart shows about 27 seconds before starting the first process.

I even played around with dracut building a new (?) initramfs, or kernel parameters for it like rd_NO_LVM rd_NO_MD (which I do not need) but without Gödel's success.

So no solution, just confirmation.

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ID:	18547  

Last edited by fuege; 24th November 2009 at 04:13 AM.
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Old 10th December 2009, 03:42 AM
dismalscience Offline
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Join Date: Nov 2009
Posts: 3
narrowing issue

I noticed in dmesg:
ata2.00: status: { DRDY }
ata2: link is slow to respond, please be patient (ready=0)
ata2: device not ready (errno=-16), forcing hardreset
ata2: soft resetting link
ata2.00: configured for UDMA/33
ata2: EH complete
So it seems that the hard drive is not loading, consistent with my bootcharts. A little more researched from the hitachigst.com site showed that my drive (sata 2, hitachi travelstar HTS543225L9A300) does not support UDMA. To test this I ran
hdparm -i /dev/sda 
 Model=Hitachi, FwRev=FBEOC40C, SerialNo=090721FB2K00LEF4K57A
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=DualPortCache, BuffSize=7114kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=488397168
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
 AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
 Drive conforms to: unknown:  ATA/ATAPI-2,3,4,5,6,7
Which indicates that the drive does in fact support UDMA, and somehow sets itself to UDMA6, contrary to the dmesg output. Does anyone have any ideas on how to proceed? I am once more at the end of my experience.
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Old 10th December 2009, 05:48 AM
citojaso Offline
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Join Date: Oct 2007
Location: Northwest Arkansas
Age: 69
Posts: 55
I had long delays during boot and when ever I needed to furnish a password. Turns out that in F12 fingerprint recognition is turned on by default. After turning it off in settings everything was back to normal
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