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shadowhunter
n00b
Joined: 25 Nov 2003
Posts: 30
Location: Geel, Belgium
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 Posted: Mon Jul 03, 2006 1:15 pm Post subject: Safe to unmerge hotplug? |
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Hi,
Is hotplug needed for some reason?
A newer version of udev (079 or something) is superior to hotplug? Isn't it?
I seem to remind something of it being depreceated...
Do some packages depend on it for some reason?
I have a 2006.0 install
Geert. |
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Kensai
Guru
Joined: 09 Mar 2004
Posts: 571
Location: Puerto Rico
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| Posted: Mon Jul 03, 2006 5:10 pm Post subject: |
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I'm not sure I'm right, but udev now handle the hotplug events so yes udev now can do what hotplug did before but, I don't know if it is safe to unmerge.
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Gentoo: Gigabyte: nFORCE 2: nVIDIA GeForce 6600: AMD Athlon XP 3200+
Leaving the above specs to immortalize the first system I Installed Gentoo on! |
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chunderbunny
Veteran
Joined: 31 May 2004
Posts: 1281
Location: 51°24'27" N, 0°57'15" W
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| Posted: Mon Jul 03, 2006 5:49 pm Post subject: |
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| Yes, udev now blocks and supercedes hotplug. It is safe to unmerge hotplug. |
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kdvgent
Guru
Joined: 29 Sep 2004
Posts: 352
Location: Belgium
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| Posted: Mon Jul 03, 2006 6:10 pm Post subject: Tried to remove hotplug but some packages seem to need it |
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I followed the advise given and removed hotplug. However the next time I did "emerge -uDav --newuse world", it was indicated that hoplug would be installed again.
I checked:
| Quote: | # equery depends hotplug
[ Searching for packages depending on hotplug... ]
media-libs/libgphoto2-2.1.6-r2
sys-apps/hal-0.5.7-r3
net-print/hplip-1.6.6-r1 |
???? |
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idella4
Retired Dev
Joined: 09 Jun 2006
Posts: 1600
Location: Australia, Perth
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| Posted: Mon Jul 03, 2006 6:38 pm Post subject: |
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I can't understand someone not mentioning coldplug.
Has it not superceded hotplug in company of udev?
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kdvgent
Guru
Joined: 29 Sep 2004
Posts: 352
Location: Belgium
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| Posted: Mon Jul 03, 2006 7:27 pm Post subject: coldplug has been removed |
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One of the recent upgrades of udev "said" to remove coldplug. I did and all is going OK.
If I try to install coldplug again, it is blocked by udev:
| Quote: | # emerge -pv coldplug
>>> cfg-update-1.8.0-r3 : No new packages have been emerged, checksum index OK...
These are the packages that would be merged, in order:
Calculating dependencies... done!
[blocks B ] >=sys-fs/udev-089 (is blocking sys-apps/coldplug-20040920-r1)
[ebuild N ] sys-apps/coldplug-20040920-r1 0 kB
Total size of downloads: 0 kB
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idella4
Retired Dev
Joined: 09 Jun 2006
Posts: 1600
Location: Australia, Perth
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| Posted: Mon Jul 03, 2006 8:06 pm Post subject: |
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most curious. my system has coldplug and udev. probably platform specific
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shadowhunter
n00b
Joined: 25 Nov 2003
Posts: 30
Location: Geel, Belgium
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| Posted: Mon Jul 03, 2006 9:51 pm Post subject: |
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what about hotplug-base...
It seems to be a dependency of udev? do you guys have it?
Geert. |
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Beefrum
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Joined: 23 May 2006
Posts: 234
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onlymee
n00b
Joined: 27 May 2004
Posts: 24
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| Posted: Sat Jul 08, 2006 11:41 am Post subject: |
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I'm very interested in this too... I also believed that hotplug was some how deprecated by udev, yet hal for example (an inherently udev related pacakge) depends upon hotplug.
Beefrum, are you suggesting that the dependencies of hal are wrong and the sys-apps/hotplug dep should be replaced with sys-apps/hotplug-base? I hunted bugzilla for anything about this but to my surprise turned up nothing so far. Has anybody confirmed that hotplug-base is sufficient? Perhaps a bug should be opened. |
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onlymee
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Emopig
Apprentice
Joined: 15 Mar 2006
Posts: 188
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| Posted: Sun Jul 09, 2006 12:02 pm Post subject: |
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I did an "rc-update del coldplug" and after a reboot my eth0 network no longer worked!
After a bit of googling though it appears the coldplug functionality in gentoo's udev has been disabled. Heres a hint:
| Code: | ~ $ fgrep -A 2 coldplug /lib/rcscripts/addons/udev-start.sh
# if you want real coldplug (with all modules being loaded for all
# devices in the system), uncomment out the next line.
list="$list $(echo /sys/bus/*/devices/*/uevent)"
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...I did this and then I no longer need coldplug in my boot runlevel. I'm using udev 087-r1 |
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Beefrum
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Joined: 23 May 2006
Posts: 234
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ats2
Apprentice
Joined: 22 Apr 2005
Posts: 297
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| Posted: Wed Jul 19, 2006 3:42 pm Post subject: |
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| Emopig wrote: | I did an "rc-update del coldplug" and after a reboot my eth0 network no longer worked!
After a bit of googling though it appears the coldplug functionality in gentoo's udev has been disabled. Heres a hint:
| Code: | ~ $ fgrep -A 2 coldplug /lib/rcscripts/addons/udev-start.sh
# if you want real coldplug (with all modules being loaded for all
# devices in the system), uncomment out the next line.
list="$list $(echo /sys/bus/*/devices/*/uevent)"
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...I did this and then I no longer need coldplug in my boot runlevel. I'm using udev 087-r1 |
Thanks for the tip! I tried unmerging coldplug first (before reading your message) and it messed up with gome: every time I logged off, I had a blank screen. Then I commented out the line in udev-start.sh as you said and I could remove coldplug from boot runlevel. The question now id: is it safe to unmerge coldplug at all ? |
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ats2
Apprentice
Joined: 22 Apr 2005
Posts: 297
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| Posted: Thu Jul 20, 2006 1:22 am Post subject: |
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Hmmm, wrong.
I had to revert back to rc_coldplug=yes, and comment out the line, and add coldplug to boot runlevel in order to get my net.eth0 to work...
Is there somewhere a good tutorial/explanation on how hald/dbus/hotplug/coldplug/udev work together ? I think this is one of the most annoying things to set up correctly in gentoo. |
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cyberpatrol
Apprentice
Joined: 18 Sep 2003
Posts: 161
Location: Germany
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| Posted: Sat Aug 26, 2006 4:47 am Post subject: |
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I hope I can clarify it a bit. 
If >=udev-096 - I don't know which was the first version with hotplug and coldplug functionality - is installed you don't need to have installed hotplug and coldplug. I would even say you mustn't have installed hotplug and coldplug because udev on the one hand and hotplug and coldplug on the other hand seem to conflict with each other.
I explained it in bug 143660.
To activate udev's hotplug functionality this has to be set in /etc/conf.d/rc:
To prevent udev from loading every kernel module at boot time this has to be set in /etc/conf.d/rc:
| Code: | RC_COLDPLUG="no"
RC_PLUG_SERVICES="!*" |
The modules which shall be loaded at boot time (coldplugged) can be set in /etc/modules.autoload.d/kernel-<kernel version>.
Btw, hotplug-base is a dependency of hotplug as well as of udev, so it mustn't be uninstalled. |
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