Pacman slow in Arch, but fast in Ubuntu

Hello
I searched among Pacman related topics on this forum, but I didn't find anything related to problem I have. It takes Pacman very long time to download many small files. Bandwidth isn't the case, but the time it takes Pacman to start downloading next package. My average ping to http://mir.archlinux.fr is about 70ms. When Pacman completes downloading packageN there's a few second lag till it will start downloading packageN+1. There's no such lag when I run Arch Linux in Ubuntu under KVM and using the same mirror.
PS. I have ipv6 disabled.
Last edited by Pawlerson (2010-10-09 13:41:19)

Allan wrote:Have you set up /etc/hosts properly?
Yes, browsing the web is very fast. My hosts file:
127.0.0.1 localhost.localdomain localhost desktop

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Message was edited by: jnmen

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#!/bin/bash
function aur_check {
STARTDIR=`pwd`
cd /var/cache/pacman
for r in `pacman -Qmq`; do
wget "http://aur.archlinux.org/packages/$r/$r/PKGBUILD" >/dev/null 2>&1
if [ $? -eq 0 ]; then
LOCAL_VERSION_REL=`'pacman' -Q $r | awk '{print $2}'`
LOCAL_VERSION=`echo $LOCAL_VERSION_REL| sed -e 's/-.*//g'`
REMOTE_VERSION=`cat PKGBUILD | grep -E '^pkgver=' | sed -e 's/pkgver=//g' | sed -e 's/[ ]*//g'`
REMOTE_REL=`cat PKGBUILD | grep -E '^pkgrel=' | sed -e 's/pkgrel=//g'`
if [[ "$LOCAL_VERSION" < "$REMOTE_VERSION" ]]; then
printf "warning: $r: ignoring package upgrade ($LOCAL_VERSION_REL => ${REMOTE_VERSION}-${REMOTE_REL})\n"
fi
rm PKGBUILD
fi
done
cd $STARTDIR
function sync_check {
STARTDIR=`pwd`
cd /var/cache/pacman
IGNORED_PACKAGES=`cat /etc/pacman.conf | grep -E '^IgnorePkg' | sed -e 's/IgnorePkg[ ]*=[ ]*//g'`
for s in $IGNORED_PACKAGES; do
REMOTE_VERSION_STRING=`'pacman' -Si $s 2>/dev/null | grep -E '^Version'`
if [ $? -eq 0 ]; then
REMOTE_VERSION_REL=`echo $REMOTE_VERSION_STRING | awk '{print $3}'`
LOCAL_VERSION_STRING=`'pacman' -Q $s 2>/dev/null`
if [ $? -eq 0 ]; then
LOCAL_VERSION_REL=`echo $LOCAL_VERSION_STRING | awk '{print $2}'`
printf "warning: $s: ignoring package upgrade ($LOCAL_VERSION_REL => $REMOTE_VERSION_REL)\n"
fi
fi
done
cd $STARTDIR
function remove_crap {
# No docs or schemas.
rm -rf 2>/dev/null ./usr/share/doc
rm -rf 2>/dev/null ./usr/share/gtk-doc
rm -rf 2>/dev/null ./etc/gconf
# Please delete this file. It is not necessary for linking the library.
find . -name "*.la" -exec rm {} \;
# Only one man directory please.
if [ -d ./usr/man ]; then
if [ ! -d ./usr/share ]; then
mkdir ./usr/share
fi
mv ./usr/man ./usr/share/man
fi
if [ -d ./usr/share/man ]; then
cd ./usr/share/man
ls | grep 'cat' | xargs rm -rf
if [ -d ./man ]; then
mv ./man/* .
rm -rf ./man
fi
# Imposes what I consider to be a better naming convention for some reason.
for t in `ls`; do
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SUFFIX=`echo $v | sed -e "s/$PREFIX//g"`
if [ ! -h $v ]; then
install -D $v ../../${u}/${PREFIX}-${t}${SUFFIX}
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done
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fi
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cd $x
for y in `ls`; do
echo $y | grep -q -E '\.gz$'
if [ $? -ne 0 ]; then
gzip $y >/dev/null 2>&1
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PREFIX=`echo $y | sed -e "s/\.${SECOND_LAST_EXTENSION}//g"`
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if [ $NEW_NAME != $PREFIX ]; then
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fi
fi
done
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done
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fi
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if [ -d ./usr/share/info ]; then
if [ -d ./usr/share/man ]; then
mkdir ./usr/share/man/man9
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mkdir ./usr/share/man
mkdir ./usr/share/man/man9
fi
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if [ $? -eq 0 ]; then
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gzip ../man/man9/${NEWNAME} >/dev/null 2>&1
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ULTIMATE_ANSWER="y"
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ACTUAL_CONFLICTS=""
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'pacman' -Q $CONFLICTING_PACKAGE >/dev/null 2>&1
if [ $? -eq 0 ]; then
AFFECTED=1
if [ ${#p} -gt ${#CONFLICTING_PACKAGE} ]; then
AFFECTED=0
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CONFLICTING_VERSION_STRING=${p:${#CONFLICTING_PACKAGE}:${#p}-${#CONFLICTING_PACKAGE}}
RELATION=${CONFLICTING_VERSION_STRING:1:2}
if [ "$RELATION" = "=" ]; then
RELATION=${CONFLICTING_VERSION_STRING:0:1}${RELATION}
CONFLICTING_VERSION=${CONFLICTING_VERSION_STRING:2:${#CONFLICTING_VERSION_STRING}-2}
else
RELATION=${CONFLICTING_VERSION_STRING:0:1}
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fi
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if [ "$RELATION" = ">" ]; then
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AFFECTED=1
fi
elif [ "$RELATION" = "<" ]; then
if [[ "$ACTUAL_VERSION" < "$CONFLICTING_VERSION" ]]; then
AFFECTED=1
fi
elif [ "$RELATION" = ">=" ]; then
if [ "$ACTUAL_VERSION" >= "$CONFLICTING_VERSION" ]; then
AFFECTED=1
fi
elif [ "$RELATION" = "<=" ]; then
if [ "$ACTUAL_VERSION" <= "$CONFLICTING_VERSION" ]; then
AFFECTED=1
fi
else
if [ "$ACTUAL_VERSION" = "$CONFLICTING_VERSION" ]; then
AFFECTED=1
fi
fi
fi
if [ $AFFECTED -ne 0 ]; then
ACTUAL_CONFLICTS="$ACTUAL_CONFLICTS $CONFLICTING_PACKAGE"
printf ":: ${1} conflicts with ${CONFLICTING_PACKAGE}. Remove ${CONFLICTING_PACKAGE}? [Y/n] "
read ANSWER
if [ $ANSWER != "Y" ] && [ $ANSWER != "y" ]; then
ULTIMATE_ANSWER="n"
break
fi
fi
fi
done
if [ $ULTIMATE_ANSWER = "y" ]; then
for q in $ACTUAL_CONFLICTS; do
'pacman' -Rd ${q}
done
return 0
fi
return 1
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if [ $PACKAGE_NAME = "kernel26" ]; then
ln -s /etc/uvesafb.conf /etc/uvesafb
elif [ $PACKAGE_NAME = "firefox" ]; then
cd ./usr/lib
FIREFOX_DIR=`ls | grep 'firefox'`
if [ $? -eq 0 ]; then
cd $FIREFOX_DIR/chrome
jar -xf ./browser.jar
rm ./browser.jar
sed -i -e '/console.xul/s/^/\/\//g' ./content/browser/browser.js
jar -cf browser.jar content
rm -r content
cd ../..
fi
cd ../..
elif [ $PACKAGE_NAME = "gstreamer0.10-good-plugins" ]; then
rm ./usr/lib/gstreamer0.10/libgstesd.so
fi
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echo "$i" | grep -q ".so"
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fi
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fi
fi
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OWNER=`echo $OWNER | awk '{print $2}'`
DEPS="$DEPS $OWNER"
else
# Or it's part of the current package
BASENAME=`basename $j`
find . -name ${BASENAME} | grep -q "${BASENAME}"
if [ $? -eq 0 ]; then
echo "$j $PACKAGE_NAME" >> /var/cache/pacman/quicklookup
else
# Or we figure out its owner with pacman and put it in the quicklookup file
OWNER=`'pacman' -Qoq $j 2>/dev/null`
if [ $? -eq 0 ]; then
echo "$j $OWNER" >> /var/cache/pacman/quicklookup
DEPS="$DEPS $OWNER"
fi
fi
fi
fi
done
fi
done
# Sticks a "kernel26" between the old dependencies and the new dependencies
CURRENT_DEPS=`cat .PKGINFO | grep -E '^depend = ' | sed -e 's/depend = //g'`
DEPS="$CURRENT_DEPS kernel26a $DEPS"
# Puts them into the PKGINFO file so that all depend lines are contiguous
grep -q -E '^depend = ' .PKGINFO
if [ $? -eq 0 ]; then
FIRST_DEPEND_LINE_NUMBER=`grep -n -E '^depend = ' .PKGINFO | head -1 | sed -e 's/:.*//g'`
LAST_DEPEND_LINE_NUMBER=`grep -n -E '^depend = ' .PKGINFO | tail -1 | sed -e 's/:.*//g'`
LAST_LINE_NUMBER=`wc -l .PKGINFO | awk '{print $1}'`
(( DIFFERENCE=$LAST_LINE_NUMBER-$LAST_DEPEND_LINE_NUMBER ))
cat .PKGINFO | tail -${DIFFERENCE} > .PKGINFO-3
touch .PKGINFO-2
(( FIRST_DEPEND_LINE_NUMBER-- ))
cat .PKGINFO | head -${FIRST_DEPEND_LINE_NUMBER} > .PKGINFO-1
else
cp .PKGINFO .PKGINFO-1
touch .PKGINFO-2
touch .PKGINFO-3
fi
for k in $DEPS; do
echo "depend = $k" >> .PKGINFO-2
done
# This is all so we don't get mesa and mesa=7.5 in the same dep array
cat .PKGINFO-2 | awk '{print $3}' | sed -r 's/(>=|>|=|<|<=)/ \1/g' > .RAW-DEPS
cat .RAW-DEPS | awk '{print $1}' > .COL-1
cat .RAW-DEPS | awk '{print $2}' > .COL-2
# Got this from sed1line.txt... it removes duplicate lines
sed -i -n 'G; s/\n/&&/; /^$[ -~]*\n$.*\n\1/d; s/\n//; h; P' .COL-1
paste --delimiter="" .COL-1 .COL-2 > .RAW-DEPS
sed -i -e "/${PACKAGE_NAME}/d" .RAW-DEPS
sed -i -e 's/kernel26a/kernel26/g' .RAW-DEPS
sed -e 's/^/depend = /g' .RAW-DEPS > .PKGINFO-2
sed -i -e "/depend =[ ]*$/d" .PKGINFO-2
cat .PKGINFO-1 .PKGINFO-2 .PKGINFO-3 > .PKGINFO
rm .PKGINFO-1 .PKGINFO-2 .PKGINFO-3 .RAW-DEPS .COL-1 .COL-2
function do_install {
STARTDIR=`pwd`
cd /var/cache/pacman/tmp
for l in `ls -tr`; do
TEMP_DIR=`echo $l | sed -r 's/(-i686|-x86_64|-any|)\.pkg\.tar\.gz//g'`
# Extracts the package and makes the necessary modifications to it
mkdir $TEMP_DIR
mv $l $TEMP_DIR
cd $TEMP_DIR
tar -xf $l >/dev/null 2>&1
rm $l
remove_crap
get_deps
# Retars the package and installs it
if [ -e .INSTALL ]; then
tar -cf $l .INSTALL .PKGINFO * >/dev/null 2>&1
else
tar -cf $l .PKGINFO * >/dev/null 2>&1
fi
# Installs it and puts it in the cache
install_with_u $l
if [ $? -eq 0 ]; then
'pacman' -Udf $l
else
mv $l ../../pkg
cd ..
rm -r $TEMP_DIR
break;
fi
mv $l ../../pkg
cd ..
rm -r $TEMP_DIR
done
cd $STARTDIR
function get_answer {
read ANSWER
echo $ANSWER > /var/cache/pacman/answer
echo $ANSWER
if [ "$1" = "-Syu" ]; then
sync_check
aur_check
'pacman' --cachedir /var/cache/pacman/tmp -Syuw
do_install
elif [ "$1" = "-Su" ]; then
sync_check
aur_check
'pacman' --cachedir /var/cache/pacman/tmp -Suw
do_install
elif [ "$1" = "-S" ]; then
shift
PACKAGE_ARRAY=""
# If something we're installing is in the cache... move it to the temporary cache
for n in $@; do
if [ ${n:0:1} != "-" ]; then
NUM_MATCHES=`ls -1 /var/cache/pacman/pkg | grep -E "^${n}-" | wc -l`
for o in `seq 1 $NUM_MATCHES`; do
POSSIBLE_MATCH=`ls /var/cache/pacman/pkg | grep -E "^${n}-" -m${o} | tail -1`
HYPHENS=`echo $POSSIBLE_MATCH | sed -e "s/${n}//g" | grep -o "-" | wc -l`
if [ $HYPHENS -le 3 ]; then
mv /var/cache/pacman/pkg/${POSSIBLE_MATCH} /var/cache/pacman/tmp
# Changes the stored md5sum temporarily - I don't know a better way to do this
TEMP_DIR=`echo ${POSSIBLE_MATCH} | sed -r 's/(-i686|-x86_64|-any|)\.pkg\.tar\.gz//g'`
find /var/lib/pacman/sync -name $TEMP_DIR | grep -q $TEMP_DIR
if [ $? -eq 0 ]; then
MD5SUM=`md5sum /var/cache/pacman/tmp/${POSSIBLE_MATCH} | awk '{print $1}'`
REPOS=`find /var/lib/pacman/sync -name $TEMP_DIR | sed -e 's/\// /g' | awk '{print $5}'`
sed -i '/%MD5SUM%/G' /var/lib/pacman/sync/$REPOS/$TEMP_DIR/desc
MD5_LINE_NUMBER=`grep -n '%MD5SUM%' /var/lib/pacman/sync/$REPOS/$TEMP_DIR/desc | sed -e 's/:.*//g'`
(( MD5_LINE_NUMBER++ ))
sed -i -e "${MD5_LINE_NUMBER}s/.*/${MD5SUM}/" /var/lib/pacman/sync/$REPOS/$TEMP_DIR/desc
PACKAGE_ARRAY="${PACKAGE_ARRAY} ${REPOS}/${TEMP_DIR}"
fi
break;
fi
done
fi
done
# Pacman is run and then a function reads a y or an n from stdin and passes it to pacman's stdin
get_answer | 'pacman' --cachedir /var/cache/pacman/tmp -Sw $@
# The function also saves it in a file so we know whether to proceed or cancel because pacman was cancelled
LETTER=`cat /var/cache/pacman/answer`
if [ "$LETTER" != "y" ] || [ "$LETTER" != "Y" ]; then
do_install
else
# If anything got moved to the temporary cache for this it is sent back to the main one
FILES_IN_CACHE=`ls /var/cache/pacman/tmp | wc -l`
if [ $FILES_IN_CACHE -ne 0 ]; then
mv /var/cache/pacman/tmp/* /var/cache/pacman/pkg
fi
fi
# Changes all the md5sums back
for w in $PACKAGE_ARRAY; do
MD5_LINE_NUMBER=`grep -n '%MD5SUM%' /var/lib/pacman/sync/$w/desc | sed -e 's/:.*//g'`
(( MD5_LINE_NUMBER++ ))
sed -i -e "${MD5_LINE_NUMBER}d" /var/lib/pacman/sync/$w/desc
done
elif [ "$1" = "-U" ]; then
STARTDIR=`pwd`
TEMP_DIR=`echo $2 | sed -r 's/(-i686|-x86_64|-any|)\.pkg\.tar\.gz//g'`
mkdir /var/cache/pacman/$TEMP_DIR
cp "$2" /var/cache/pacman/$TEMP_DIR
cd /var/cache/pacman/$TEMP_DIR
tar -xf $2 >/dev/null 2>&1
rm $2
get_deps
# Retars the package and installs it
if [ -e .INSTALL ]; then
tar -cf $2 .INSTALL .PKGINFO * >/dev/null 2>&1
else
tar -cf $2 .PKGINFO * >/dev/null 2>&1
fi
install_with_u $2
if [ $? -eq 0 ]; then
'pacman' -U $2
fi
cd ..
rm -r $TEMP_DIR
cd $STARTDIR
elif [ "$1" = "-Qi" ] || [ "$1" = "-Qii" ]; then
INITIAL_ARG=$1
shift
if [ "$INITIAL_ARG" = "-Qi" ]; then
'pacman' -Qi $@ > /var/cache/pacman/tempquery
else
'pacman' -Qii $@ > /var/cache/pacman/tempquery
fi
if [ $? -ne 0 ] || [ ! -e /var/cache/pacman/tempquery ]; then
exit 1
fi
# Filters out all deps after kernel26 for a regular query
# Filters out all deps before kernel26 for a verbose query
if [ $? -eq 0 ]; then
START_LINE_NUMBER=`cat /var/cache/pacman/tempquery | grep -n 'Depends On' | sed -e 's/:.*//g'`
LINE_NUMBER=$START_LINE_NUMBER
(( LINE_NUMBER=$LINE_NUMBER+1 ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
while [ $? -ne 0 ]; do
(( LINE_NUMBER=$LINE_NUMBER+1 ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
done
(( END_LINE_NUMBER=$LINE_NUMBER-1 ))
(( DIFFERENCE=$LINE_NUMBER-$START_LINE_NUMBER ))
OLD_DEP_LIST=`cat /var/cache/pacman/tempquery | head -${END_LINE_NUMBER} | tail -${DIFFERENCE} | sed -e 's/.* : //g' | sed -e 's/ //g'`
for k in $OLD_DEP_LIST; do
if [ "$INITIAL_ARG" = "-Qi" ]; then
if [ "$k" != "kernel26" ]; then
NEW_DEP_LIST="$NEW_DEP_LIST $k"
else
break
fi
else
if [ "$k" != "kernel26" ]; then
NEW_DEP_LIST="$NEW_DEP_LIST $k"
fi
fi
done
fi
# Removes the old deps array and replaces it with the new one
sed -i -e "${START_LINE_NUMBER},${END_LINE_NUMBER}d" /var/cache/pacman/tempquery
(( START_LINE_NUMBER=$START_LINE_NUMBER-1 ))
END_LINE_NUMBER=`wc -l /var/cache/pacman/tempquery | awk '{print $1}'`
(( DIFFERENCE=$END_LINE_NUMBER-$START_LINE_NUMBER ))
cat /var/cache/pacman/tempquery | head -${START_LINE_NUMBER} > /var/cache/pacman/tempquery-1
cat /var/cache/pacman/tempquery | tail -${DIFFERENCE} > /var/cache/pacman/tempquery-3
CURRENT_LINE=""
CURRENT_LINE_NUMBER=1
for m in $NEW_DEP_LIST; do
if (( ${#CURRENT_LINE}+${#m}+1<=63 )); then
CURRENT_LINE="$CURRENT_LINE $m"
else
if [ $CURRENT_LINE_NUMBER -eq 1 ]; then
printf "Depends On :$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
else
printf "\t\t$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
fi
CURRENT_LINE=" $m"
CURRENT_LINE_NUMBER=0
fi
done
if [ $CURRENT_LINE_NUMBER -eq 1 ]; then
printf "Depends On :$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
else
printf "\t\t$CURRENT_LINE\n" >> /var/cache/pacman/tempquery-2
fi
cat /var/cache/pacman/tempquery-1 /var/cache/pacman/tempquery-2 /var/cache/pacman/tempquery-3 > /var/cache/pacman/tempquery
# Removes the requirements array for a regular query
if [ "$INITIAL_ARG" = "-Qi" ]; then
START_LINE_NUMBER=`cat /var/cache/pacman/tempquery | grep -n 'Required By' | sed -e 's/:.*//g'`
LINE_NUMBER=$START_LINE_NUMBER
(( LINE_NUMBER=$LINE_NUMBER+1 ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
while [ $? -ne 0 ]; do
(( LINE_NUMBER++ ))
cat /var/cache/pacman/tempquery | head -${LINE_NUMBER} | tail -1 | grep ':'>/dev/null 2>&1
done
(( END_LINE_NUMBER=$LINE_NUMBER-1 ))
sed -i -e "${START_LINE_NUMBER},${END_LINE_NUMBER}d" /var/cache/pacman/tempquery
fi
cat /var/cache/pacman/tempquery
rm /var/cache/pacman/tempquery /var/cache/pacman/tempquery-1 /var/cache/pacman/tempquery-2 /var/cache/pacman/tempquery-3
elif [ "$1" = "-Scc" ]; then
LINE_NUMBER=0
for z in `cat /var/cache/pacman/quicklookup | awk '{print $1}'`; do
(( LINE_NUMBER++ ))
if [ ! -e $z ]; then
sed -i -e "${LINE_NUMBER}d" /var/cache/pacman/quicklookup
(( LINE_NUMBER-- ))
fi
done
'pacman' -Scc
else
'pacman' $@
fi
Last edited by ConnorBehan (2009-09-19 00:42:48)

rls wrote:ABS is fine, but unless I am mistaken, it does nothing to ensure the configure and make stages go smoothly. It is a good way to integrate "home-rolled" packages into the Arch system.
hmmmm... I could be wrong because I've never used Gentoo, but if you make a package that doesn't already exist for Gentoo, does it do anything to make sure the compilation goes smoothly? If the package exists, then there is a way to build the package that has been tested by somebody else. This is how ABS works too; if a PKGBUILD exists, you can be reasonably sure it will work.
I can't imagine a program that can automatically fix or recover from compiler or Makefile errors. If it does, then... wow.
I assume that Gentoo has a larger package base than Arch, but let's not get into that discussiong again!
Xentacs script is basically designed to allow you to choose whether you are going to install from source or binary. Assuming the PKGBUILDS are in order (which for arch repository programs they are, because the binaries were built from them!), this should work as flawlessly as installing from binaries.
Dusty

SLOW MDX Query in an Environment but Fast in another

A query runs slow in one environment but fast another : here's what I looked for so far without any luck.
It takes 2 seconds to execute the query below in QA vs 20 seconds in prod.
QA cube size is 430.81 MB - 474.54 MB on PROD
Cubes match in environments
Compared QA and PROD properties and they match (database and server Analysis services)
Restarted services on both machines
Looking at SQL server provider seems that the query has no significant effect on the CPU
Seems there's a spike in pages/sec when the MDX query runs – the VM size is slightly > in PROD than in QA this shouldn’t affect it .Looked at the Storage Engine queries ,MDX counters and Nothing stands out
here's the query
SELECT NON EMPTY
CrossJoin(CrossJoin(Hierarchize(AddCalculatedMembers({DrilldownLevel({[Sector].[Sector].[All]})})),
Hierarchize(AddCalculatedMembers({DrilldownLevel({[Security].[Sec Type].[All]})}))),
Hierarchize(AddCalculatedMembers({DrilldownLevel({[Broker].[Broker].[All]})})))
DIMENSION PROPERTIES PARENT_UNIQUE_NAME,[Sector].[Sector].[Sector],[Broker].[Broker].[Broker],[Broker].[Broker].[Company Code]
ON COLUMNS
FROM [TradeAndCommission]
WHERE ([Measures].[Broker Par Pct]) CELL PROPERTIES VALUE, FORMAT_STRING, LANGUAGE, BACK_COLOR, FORE_COLOR, FONT_FLAGS
eddy.a

Hi Eddy,
Thank you for your question.
I am trying to involve someone more familiar with this topic for a further look at this issue. Sometime delay might be expected from the job transferring. Your patience is greatly appreciated.
Thank you for your understanding and support.
Regards,
Charlie Liao
TechNet Community Support

The first time I start Firefox it is very slow coming up but after it is up and I want another window it fast again. What do I need to do to clean out whatever is clogging it up.

Question
The first time I start Firefox it is very slow coming up but after it is up and I want another window it fast again. What do I need to do to clean out whatever is clogging it up. edit

* The first time you start up any application after turning on your computer is called a cold start, which is why Firefox takes a while to load right away. (I've noticed that future versions of Firefox start up faster on a cold start then Firefox 5.0.1.) Also, a lower amount of RAM could be slowing its start-up down since Firefox is kind of memory hungry.
* As for the second part of your question, press ctrl,Alt, and the delete keys on your keyboard. The Windows Task Manager should start. Go to the processes tab and look for 'firefox.exe'. Right click on the firefox.exe and click 'End Process'. Hit Yes and wait for a minute.
* Then opening Firefox again.
Hopefully this helped somewhat!

How to Restore Arch's grub after Ubuntu install to 2nd disk

I installed Ubuntu to sdb after installing Arch to sda. Ubuntu was installed with LVM, though Arch does not use LVM.
I want to wipe out ubuntu now, but it seems to be in control of my boot process, and as a newb, I'm not quite sure how that process transpires. I have read the Grub article on Arch's Wiki site, but that doensn't help me.
After booting into Arch and running:
# grub-mkconfig -o /boot/grub/grub.cfg
and then rebooting, I still have the Ubuntu Grub menu on the next boot. My Arch /etc/default/grub is the same one that I used before installing Ubuntu - I'm not concerned about adding Ubuntu to the menu, so that's not an issue.
What do I need to do to get Arch back in control of the boot process?
Thanks in advance!

Kilz wrote:Here is an option in case you cant figure it out. Rename the /boot directory in the ubuntu install and copy the /boot directory from Arch in its place. Reboot, if everything works fine delete everything in the Ubuntu partition but /boot. Rename the /boot directory in the Arch install then shrink the ubuntu partition and mount it in the arch install as /boot. in the end you will just have a separate boot partition that will take up little space.
Thanks again. I finally got it working, but via a different, somewhat convoluted route.
I screwed things up and ended up with only a grub prompt at boot. Following instructions found online, I was able to boot my arch disk (sda), then ran grub-install and grub-mkconfig. The install ran without errors (as before) but grub-mkconfig reported errors. I had been disregarding these errors, because I thought they were related to the custom font and background in my /etc/default/grub file, and another source explained that I could ignore errors when setting fonts and background there (not sure if that source was reliable). But one of the errors on grub-mkinstall reported it couldn't find device.map. There was no device.map in /boot/grub.
Also of note, I had renamed the old /boot/grub/grub.cfg and left the /boot/grub directory without a proper grub.cfg file - probably why I got a grub menu at boot!
In the end, I created a device.map in /boot/grub/ and re-ran grub-mkconfig, but still got an error. So I commented out the font and background lines in /etc/default/grub and also renamed my old backup /boot/grub/grub.cfg-backup to the proper "grub.cfg", then re-ran grub-mkconfig. This time there were not errors reported from grub-mkconfig and with a quick glance at the contents, I was able to figure out that the menu entries looked good.
I was able to reboot with the appropriate arch menu at this point! While I'm not sure which step "fixed" my problem, I wanted to at least record my steps here for future users - perhaps one of the options above will help someone else. Worth mentioning is that the ubuntu (sdb) drive was LVM, and I think that might have played into some of my difficulties, but I'm not sure about that.
The device.map that I created looked like this, where sda is my arch disk and sdb is the ubuntu installation (still not sure if it is needed, though):
(hd0) /dev/sda
(hd1) /dev/sdb
Last edited by stringchopper (2013-02-14 08:38:52)

Pacman slow in Arch, but fast in Ubuntu

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