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| what do you think about automated updates? |
| already doing it |
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17% |
[ 10 ] |
| i am only getting informed about new updates automated |
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26% |
[ 15 ] |
| never thought about it |
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56% |
[ 32 ] |
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| Total Votes : 57 |
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| Author |
Message |
fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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 Posted: Sat May 22, 2004 7:29 pm Post subject: system update script |
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i wrote a small bash-script which i use for daily updates via cron.
here it is:
| Code: |
#!/bin/bash
source /sbin/functions.sh
if [ "${EUID}" -ne 0 ]
then
eerror "$0: must be root."
exit 1
fi
echo SysUpdate V 1.0
echo Updating a Gentoo System
echo
function hasError() {
logger -t SysUpdate "FAILED"
exit
}
ebegin cleaning logs
logger -t SysUpdate "cleaning logs"
echo "Updated Packages from: " > /var/log/sysupdate.daily
date >> /var/log/sysupdate.daily
date > /var/log/sysupdate.detail
eend $? || hasError
ebegin syncing portage tree
logger -t SysUpdate "syncing portage tree"
emerge sync >> /var/log/sysupdate.detail 2>/var/log/sysupdate.detail &> /var/log/sysupdate.detail
eend $? || hasError
ebegin updating system
logger -t SysUpdate "updating system"
emerge world -uDpv |grep ebuild >> /var/log/sysupdate.daily
emerge world -uDv >> /var/log/sysupdate.detail 2> /var/log/sysupdate.detail &> /var/log/sysupdate.detail
cat /var/log/sysupdate.daily >> /var/log/sysupdate
eend $? || hasError
ebegin cleaning outdated dependencies
logger -t SysUpdate "cleaning outdated dependencies"
emerge depclean -v >> /var/log/sysupdate.detail 2> /var/log/sysupdate.detail &> /var/log/sysupdate.detail
eend $? || hasError
ebegin prelinking
logger -t SysUpdate "prelinking"
nice -n 5 /usr/sbin/prelink -afmRv >> /var/log/sysupdate.detail 2> /var/log/sysupdate.detail &> /var/log/sysupdate.detail
eend $? || hasError
ebegin list updated packages
cat /var/log/sysupdate.daily
eend $? || hasError
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suggestions are welcome!
its the first bash-script i write...so please don't hurt me 
at work i am a win-only programmer and at home a linux only user....a little bit funny
f.
btw: it's a x86 system with prelinking enabled.
without prelinking you have to kick out the prelining block....
the script generates three log-files:
/var/log/sysupdate.daily
contains all updated packages from this run
/var/log/sysupdate.detail
contains the hole output of this run
/var/log/sysupdate
contains a update list from all runs
you can use this second script (if you have aterm installed) to start the script as a user in a xsession (it will open three aterms showing the first two log files and the actual update process)
attention: please have a look at the paths!
:
| Code: |
#!/bin/bash
aterm -title "Updated Packages" -bg black -fg grey +ls -transparent -tinting darkblue -e tail -f /var/log/sysupdate.daily &
aterm -title "Update Process" -bg black -fg grey +ls -transparent -tinting darkblue -e tail -f /var/log/sysupdate.detail &
aterm -title "System Update in Progress" -bg black -fg white +ls -transparent -tinting darkred -e su -c /root/scripts/sysupdate
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Last edited by fwerner on Sat May 22, 2004 8:44 pm; edited 1 time in total |
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Keffin
Apprentice
Joined: 14 Feb 2004
Posts: 202
Location: England
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| Posted: Sat May 22, 2004 8:14 pm Post subject: |
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Well I said I'm updating automatically, I just made a simple script that syncs and updates automagically, then goes through depclean/revdep-rebuild asking if I want to continue at each stage, then cleans out the directories that portage dumps stuff in. I still run it manually though, usually once every day or 2 when I get bored.
I made a script to compile a new kernel too, which does everything automatically except the config. I can never remember all the steps myself  .
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JemandAnders
n00b
Joined: 05 Nov 2003
Posts: 2
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| Posted: Sat May 22, 2004 8:19 pm Post subject: |
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why don't you use genkernel? its a nice script and it is merging your old config in your new kernel automatical.
using it since i switched to 2.6
f. |
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Keffin
Apprentice
Joined: 14 Feb 2004
Posts: 202
Location: England
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| Posted: Sat May 22, 2004 9:13 pm Post subject: |
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Well, my reasons were that I was just learning how to write bash scripts so I needed a couple of things to do, I am also using Vector Linux so it comes in handy for that, and I wasn't fully aware of genkernels capabilities.
I guess I should read up on genkernel when I get a chance, I wouldn't even consider putting my script in portage if I were in charge, so genkernel must be much better. 
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carambola5
Apprentice
Joined: 10 Jul 2002
Posts: 214
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| Posted: Sat May 22, 2004 9:30 pm Post subject: |
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While it's a nice idea and all, it is my opinion that sync'ing once a day is abuse of the sync mirrors. Officially, I believe you are OK with doing this (the limit for "appropriate use" is once/day), but is it truly needed?
IMO, only in rare cases is it acceptable to be sync'ing once per day. If you would, please chop this down to once every other day, or perhaps 3x per week. |
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spb
Retired Dev
Joined: 02 Jan 2004
Posts: 2135
Location: Cambridge, UK
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| Posted: Sat May 22, 2004 9:34 pm Post subject: |
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Missing poll option: Thought about it, but decided it was a stupid idea.
That's overstating it a bit, perhaps, but blindly doing updates and depcleans in a cron job has the potential to do some serious harm. I once ended up with a non-bootable system throught not running etc-update after an upgrade (udev got updated, but its config didn't). And you can't automerge config changes either, because you'll nuke fstab at the next baselayout upgrade. |
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fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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| Posted: Sat May 22, 2004 9:35 pm Post subject: |
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| carambola5 wrote: | While it's a nice idea and all, it is my opinion that sync'ing once a day is abuse of the sync mirrors. Officially, I believe you are OK with doing this (the limit for "appropriate use" is once/day), but is it truly needed?
IMO, only in rare cases is it acceptable to be sync'ing once per day. If you would, please chop this down to once every other day, or perhaps 3x per week. |
hm i thought rsync only transmits the changes? so where is the difference between once a week and once pe day?
i do it once per day just because i dont want long compile times.
once in a week is another possibility....i am thinking about....how much traffic is sent by rsync when no update is there? so i have a value.....
f. |
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fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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| Posted: Sat May 22, 2004 11:24 pm Post subject: |
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| thebell wrote: | Missing poll option: Thought about it, but decided it was a stupid idea.
That's overstating it a bit, perhaps, but blindly doing updates and depcleans in a cron job has the potential to do some serious harm. I once ended up with a non-bootable system throught not running etc-update after an upgrade (udev got updated, but its config didn't). And you can't automerge config changes either, because you'll nuke fstab at the next baselayout upgrade. |
thats the reason for the secon option... because i thought everybody who thought of it will at least build a notifcation script....
i have a stable system (with xorg) and all goes well....
but its not a production system!
about the config files:
cron is mailing the output to me so i see which packages has been updated. and then i have to manually check the conf.
but you're right. you have to do this by hand and its not a good idea to forget it.
how do you like the script? im missing suggestions to make it better...i can't believe that all is right (as i already mentioned its my first one) |
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aridhol
Guru
Joined: 20 Jan 2003
Posts: 509
Location: Stockholm, Sweden
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| Posted: Sun May 23, 2004 8:36 pm Post subject: |
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There is no option for (No, I don't like automated updates.)
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"Anyone who is capable of getting themselves made President should on no account be allowed to do the job." |
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Roguelazer
Veteran
Joined: 10 Feb 2003
Posts: 1233
Location: San Francisco, CA
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| Posted: Sun May 23, 2004 10:12 pm Post subject: |
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I wrote my own awhile ago. Here it is for any interested parties:
| Code: |
#!/bin/bash
echo "Starting Roguelazer\'s System Updater..."
LOGDIR="${HOME}/.system_updates/"
LOGFILE="${HOME}/.system_updates/log"
UPDATEFILE="${HOME}/worldupdates.txt"
TEMPFILE="${HOME}/tempupdates"
if [ ${UID} == 0 ]
then true
else echo "You need to have root privileges to run this script"
exit 1
fi
if [ -d ${LOGDIR} ]
then true
else mkdir ${LOGDIR}
fi
if [ -e ${LOGFILE} ]
then true
else touch ${LOGFILE}
fi
STARTTIME=`date +%x' '%X`
echo "${STARTTIME} : Update commenced" >> ${LOGFILE}
echo "Update commenced at ${STARTTIME}"
echo "Syncing time to Atomic Clock..."
rdate -s time.nist.gov > /dev/null 2>&1
echo "Done!"
echo "Updating locate database..."
updatedb -u > /dev/null 2>&1
echo "Done!"
echo "Updating Prelink status..."
prelink -afmR > /dev/null 2>&1
echo "Done!"
echo "Updating portage tree..."
emerge sync > /dev/null 2>&1
echo "Done!"
echo "Updating esearch database..."
eupdatedb > /dev/null 2>&1
echo "Done!"
echo "Searching for updates..."
emerge -up world > ${UPDATEFILE}
cat ${UPDATEFILE} | grep ebuild > ${TEMPFILE}
cp ${TEMPFILE} ${UPDATEFILE}
rm ${TEMPFILE}
UPDATESAVAILABLE=`wc -l ${UPDATEFILE} | cut -c-2`
echo "${UPDATESAVAILABLE} updates were available" >> ${LOGFILE}
echo "${UPDATESAVAILABLE} updates available..."
ENDTIME=`date +%x' '%X`
echo "Update finished at ${ENDTIME}"
echo "${ENDTIME} : Update finished" >> ${LOGFILE}
echo "Starting upgrade procedure, please wait..."
emerge -uav world
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fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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| Posted: Mon May 24, 2004 6:16 am Post subject: |
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i would place the prelink command at the end.
why prelinking when some packages will be replaced? they will work but they won't be prelinked. if you place it at the end you know that everything is prelinked everytime.
updatedb: hm i wouldnt do that in my update script because i think it has nothing to do with a system update. this process should run daily in a cron job (same for the atomic clock).
f. |
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Roguelazer
Veteran
Joined: 10 Feb 2003
Posts: 1233
Location: San Francisco, CA
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| Posted: Mon May 24, 2004 10:36 am Post subject: |
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I put the updatedb script in because I don't particularly need to run it on a regular basis, but since I'm updating my packages, I might as well update everything else. As for the prelink, well, I do it at the beginning because the emerge -u world often fails halfway through, terminating the script. And when it doesn't, it still takes quite a few hours. I like to have everything else done before I do the emerge -u world so that I can safely terminate the emerge -u world and not leave anything...undone.
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fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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| Posted: Mon May 24, 2004 1:50 pm Post subject: |
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| Roguelazer wrote: | | I put the updatedb script in because I don't particularly need to run it on a regular basis, but since I'm updating my packages, I might as well update everything else. As for the prelink, well, I do it at the beginning because the emerge -u world often fails halfway through, terminating the script. And when it doesn't, it still takes quite a few hours. I like to have everything else done before I do the emerge -u world so that I can safely terminate the emerge -u world and not leave anything...undone. |
with ebegin and eend you can define blocks with can run seperatly...even if the update failes you can continue
(have a look at my code - when you remove the exit line in the hasError function it will continue with the next block. |
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Roguelazer
Veteran
Joined: 10 Feb 2003
Posts: 1233
Location: San Francisco, CA
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| Posted: Mon May 24, 2004 7:29 pm Post subject: |
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*shrug*
Mine works for me, yours works for you. The power of choice, right?
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NeighborhoodGullwings
Apprentice
Joined: 05 Dec 2003
Posts: 159
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| Posted: Tue May 25, 2004 8:22 am Post subject: |
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I agree with the poster above that said automatic updates is an abuse of the rsync mirrors. It is.
It also provides an enormous opportunity to break your system. The times when you should update a package are to fix bugs/holes, to add new functionality, or to benefit from performance improvements. Blindlessly upgrading every package that's available is both unnecessary and ignorant. It introduces a risk in that the upgraded package is actually worse (less functionality, more bugs) than the previous version (whether the authors knew about it or not), and is especially silly when the upgraded package doesn't add any new improvements that you would use.
I didn't vote, because there wasn't an option for "I thought about it and decided it was dumb." |
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Roguelazer
Veteran
Joined: 10 Feb 2003
Posts: 1233
Location: San Francisco, CA
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| Posted: Tue May 25, 2004 10:44 am Post subject: |
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Automatic updates don't hurt rsync mirrors if they're run once every two days. As for blindly upgrading, well, look up the -a flag of emerge. As in emerge -uav.
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spb
Retired Dev
Joined: 02 Jan 2004
Posts: 2135
Location: Cambridge, UK
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| Posted: Tue May 25, 2004 10:46 am Post subject: |
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| Roguelazer wrote: | | Automatic updates don't hurt rsync mirrors if they're run once every two days. As for blindly upgrading, well, look up the -a flag of emerge. As in emerge -uav. |
If you're going to use the -a flag, then that completely defeats the point of automated updates, since you need to explicitly say 'yes' every time. You might as well do it manually every couple of days (which I do). |
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Roguelazer
Veteran
Joined: 10 Feb 2003
Posts: 1233
Location: San Francisco, CA
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| Posted: Tue May 25, 2004 8:02 pm Post subject: |
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It still does everything else automagically. And if you really wanted to, you could set up a little script that does -a and then, if no response is given after 10 minutes, assumes Yes.
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teglsbo
n00b
Joined: 18 Apr 2004
Posts: 11
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| Posted: Wed May 26, 2004 10:12 pm Post subject: Redirection in sysupdate |
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| Code: | | emerge world -uDv >> /var/log/sysupdate.detail 2> var/log/sysupdate.detail &> /var/log/sysupdate.detail |
The above type of redirect is wrong.
It will overwrite /var/log/sysupdate.detail instead of appending.
Instead use:
| Code: | | emerge world -uDv >> /var/log/sysupdate.detail 2>&1 |
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teglsbo
n00b
Joined: 18 Apr 2004
Posts: 11
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| Posted: Wed May 26, 2004 10:19 pm Post subject: $CONFIG_PROTECT in cron jobs |
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When running a script like sysupdate from a cron job you will have to make sure that you have $CONFIG_PROTECT set correctly, which is not done by cron.
I have added these lines to the top of sysupdate:
| Code: | # Make sure we have $CONFIG_PROTECT
source /etc/profile
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If $CONFIG_PROTECT is not set then protected paths not listed in /etc/make.globals (e.g. "/var/bind" for bind) will not be protected. |
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fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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| Posted: Fri Jun 04, 2004 5:01 pm Post subject: Re: Redirection in sysupdate |
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| teglsbo wrote: | | Code: | | emerge world -uDv >> /var/log/sysupdate.detail 2> var/log/sysupdate.detail &> /var/log/sysupdate.detail |
The above type of redirect is wrong.
It will overwrite /var/log/sysupdate.detail instead of appending.
Instead use:
| Code: | | emerge world -uDv >> /var/log/sysupdate.detail 2>&1 |
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Thank you
I will add it tomorrow..and place a link with a modified version (it also uses revdep-rebuild and contains the CONFIG_PROTECT warning
f. |
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placeholder
Advocate
Joined: 07 Feb 2004
Posts: 2500
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| Posted: Fri Jun 04, 2004 5:22 pm Post subject: |
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I never really thought of anything like it, because I like to see what packages are going to get updated in order to keep stuff I want off of my HDD since GTK+ seems to "need" gnome-hicolor and gnome-icon-theme as a dependency now.  |
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icefox13
Tux's lil' helper
Joined: 19 Apr 2004
Posts: 78
Location: Munich, Germany
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| Posted: Fri Jun 04, 2004 5:55 pm Post subject: |
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I have only created a small cronjob which syncs the portage every day and creates a list of programs which "emerge -uD world" would build. Finally, because I update nearly every package to keep the system consistent, it fetches the packages with "emerge -fuD world".
I know the maximum is once a day... I will lower this to once a week |
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fwerner
n00b
Joined: 27 Mar 2003
Posts: 46
Location: Germany / Freiburg
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| Posted: Fri Jun 04, 2004 5:58 pm Post subject: |
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| Pwnz3r wrote: | | I never really thought of anything like it, because I like to see what packages are going to get updated in order to keep stuff I want off of my HDD since GTK+ seems to "need" gnome-hicolor and gnome-icon-theme as a dependency now. |
the script brakes when the update fails and your cron mails you the output.
so you see the failure...and can look into /var/log/sysupdate.daily, fixing it by adding it to /etc/portage/package.keywords and wait until next week....
until now it never happend to me...lucky guy i guess |
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untiefe
Apprentice
Joined: 12 Jan 2004
Posts: 230
Location: the nonexisting Bielefeld, Germany
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| Posted: Sat Jul 02, 2005 10:46 am Post subject: |
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I've started quite some time ago to write glcu, that doesn't automatically updates your system, but precompiles the packages, that need an update and notifies you via eMail. Because I like to have some control over my gentoo box and because you can't do the etc-update automatically, this is the only working update option for me.
Bye, Michael
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"I'm an angel bored like hell
And you're a devil meaning well"
:: Cardigans - You're The Storm ::
glcu - gentoo linux cron update (full featured semi-automatic updates via cron) |
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