Can't reboot in safe mode, how to reinstall OS X?

Background: My computer is stuck on the grey apple/spinning wheel screen, and remains so even after I attempt to safe boot.
Question 1A: Would reinstalling leopard be the easiest fix for this? I'd be fine with starting from a clean slate-- I've got my computer backed up on time machine.
Question 1B: If reinstalling is alright (this may seem rather silly), how do I go about doing that? Do I simply pop the leopard disk in? Just want to make sure-- I'm a rather skittish computer user.
Much thanks!

HI,
Good time to check the startup disk for errors because there might be and underlying problem since you reinstall the Mac OS.
Insert Installer disk and Restart, holding down the "C" key until grey Apple appears.
--- You already have the install disk in the optical drive so shut down the Mac, then restart while holding down the C key while pressing the power button. Keep holding down the C key until you see the Apple logo. Give it a minute or two and you will see a Menu Bar at the top of the screen.
From the Menu Bar, click Utilities/Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
*(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)*
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility window open, look at the bottom of the window where you see Capacity and Available. Make sure there is always 10% free disk space. Not enough disk space can cause directory corruption.
If you cannot boot from your install disk, try booting in Safe Mode
What is Safe Mode
Carolyn
Message was edited by: Carolyn Samit

Similar Messages

HT1338 I have macbook without a firewire port, I have usb 2.0 port, now my os is not working I can not get through apple logo loading , I can not enter safe mode, I can only enter one user mode, how can I backup my data, I have very important data in my h

I have macbook without a firewire port, I have usb 2.0 port, now my os is not working I can not get through apple logo loading , I can not enter safe mode, I can only enter one user mode, how can I backup my data, I have very important data in my hdd

Here is what worked for me:
My usb hub, being usb2, was too fast. I moved the wire to a usb port directory on my pc. That is a usb1 port which is slow enough to run your snyc.

IMac mid 2010 21.5' can only run in safe mode

My iMac (mid 2010) cannot reboot recently. It can only be boot in safe mode by pressing 'shift' when turning on. If boot normally, it will stuck on the grey apple logo screen. I tried re-install os, clean os installation, restore os using Time Machine etc, but none of these works.
If I turn off the computer for a whole night, it will then turn on the next morning. But, after a few minutes of watching video in YouTube, the screen gets frozen and I have to restart it manually, then only safe boot can work ... Now, even if I don't touch it for 24 hours, it can't start normally but safe boot.
I run the 'apple hardware test' by pressing D when reboot, the AHT did not detect any hardware problem. But I guess there is hardware problem with the logic board or graphic card.
The operation system is 10.9.4. I restored it to 10.9.2 using Time Machine, but the same symptom.

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can read it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts SerialATA 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports ' com.clark.\* \*dropbox \*GoogleDr\* \*k.AutoCAD\* \*k.Maya\* vidinst\* ' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB com.apple.AirPortBaseStationAgent 464843899 51 5120 files );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^$[0-9]+$ /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n-\t%s\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' /^ *$|CSConfigDot/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/Shared/!s/\/Users\/[^/]+/~/g ' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: [^EO]|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { if(n<200) print "com.apple.";} ' ' $3~/[0-9]:[0-9]{2}$/ { gsub(/:[0-9:a-f]{14}/,"");} { print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ 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's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|BKAg|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";p="uniq -c|sed -E '"'s/ +\$[0-9]+\$\$.+\$/\\\2 x\\\1/;s/x1$//'"'";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]$1|p;b=b$1;} END { close(p);if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text$|(Bo|PO).+ sh.+ text ex)/) F=F" ("T")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n ...and %s more line(s)\n",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/\(L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9;} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil sudo\ lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr \, \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$Message' -k Sender kernel -k Message Req 'bad |Beac|caug|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|n Cause: -|NVDA$|pagin|proc: t|Roamed|rror|ssert|Thrott|tim(ed? ?|ing )o|WARN' -k Message Rne 'Goog|ksadm|SMC:| VALI|xpma' -o -k Sender fseventsd -k Message Req 'SL' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cgh] ! -name *ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '-L {/{S*/,},}L*/Lau* -type f' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,Inter,iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t /S*/L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents launchd Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};';done;A7(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0(){ [[ "$v" ]]&&echo "$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "$s"<<<"$v"`&&C1 1 $1;};for i in 1 2;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D22 35 49 61 51;D22 11 17 17 20;for i in 0 1;do D22 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A2 19 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;A2 4 20 21;B7 6;B2 9;A4 14 7 52 9;B2 10;B6 9 10 4;C3 25;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D13 21 0 32 19;D13 10 42 32 40;D22 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 26 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D23 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 20 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 26 48 49 49;B3 4 22 57;A1 26 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D23 22 9 37 7;A7;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

SbRIO (cRIO) reboots into safe mode (software error)

Hi there,
I've used the sbRIO-9612 for year on the project, recently it sometimes reboots into safe mode. In MAX I may find the status of the sbRIO is "Safe Mode with software error". Can anyone tell me, how can I find out where is the problem. I have the error log as attachment.
Regards,
Wilbur
Solved!
Go to Solution.
Attachments:
lvrt_err_log.txt ‏51 KB

Hi,
I read again the log file. There're something that should help:
Exception code: 0x00000700
Thread ID: 0x02E270B8 Thread name: niserial
Thread stack base: 0x02E270B8 stack size: 32768
Call Stack:
0x1de9170+0xe93cc: _dtors () in module niserial.out
0x1ddd83c+0xdda98: _dtors () in module niserial.out
0x1dc840c+0xc8668: _dtors () in module niserial.out
0x1df3a34+0xf3c90: _dtors () in module niserial.out
0x1db2154+0xb23b0: _dtors () in module niserial.out
0x1dc6a2c+0xc6c88: _dtors () in module niserial.out
0x1dc68a0+0xc6afc: _dtors () in module niserial.out
0x1dc67b0+0xc6a0c: _dtors () in module niserial.out
0x3dbc80+0x8: Virtual function table for __cxxabiv1::__si_class_type_info () in module 0x0

When running diagnostic one of the problems that comes up is itunes is not running in safe mode,how do i fix

Cannot connect to ITunes Store - Diagnostic report comes up as -secure link to ITunes store failed - how do i fix

''Scotty2015 [[#question-1051017|said]]''
<blockquote>
First time situation occurred folders started to disappear as i read messages TB 31.5.0 win 7 pro 64 bit
Thunderbird user forever got into safe mode and disabled all add-ons - now all folders are visible and all content is accessible back to 2009 used mozback so I have backup restarted TB and back to 3 folders. Inbox gets created with the new emails that arrive. Filters send email to one of the visible folders 'Travel' When you open 'travel' all emails 23 unread are accessible. Go back into 'safe' mode and all folders and emails are present
Thanks
</blockquote>
no extensions , no addons uninstalled thunderbird, deleted all TB folders then rebooted win safe mode and ran Malwarebytes - no malware, rebooted normal windows and downloaded fresh version of TB reloaded profile using mozback. Still the same TB loads showing 3 folders no inbox and should be 2 accounts. Change to safe mode in TB and all files are present and 2 inboxes
i am not losing data just can only see emails when in TB safe mode. What TB profile files could be contaminated?

Satellite A105-S4211 can be launched at safe mode only

Hello,
I am a newer, and need help!
I have Toshiba Satellite A105-S4211 laptop. My kid used it for a year, and told me the Window XP operating system could not be normally launched up. I tested it. This laptop only can be started at safe mode. I used following method try to fix it. but it still works at safe mode only:
1. Replaced memory.
2. Replaced hard drive.
3. format hard drive, and reinstall Toshiba recovery disk--> could not install completed, fail at latest step.
4. format hard drive, and install Window XP professional SP2 --> fail at latest step also.
5. lauched at safe mode, and use command chkdsk to check disk. finsihed checked disk and ask me to use command "chkdsk /f" at next start up because some file is used. I reply "Yes", and restart laptop, it still going to safe mode.
6. One of my friend told me this maybe the video card of this laptop is out of work because it only works at low resolution. I have no idea.
7. I read some error messages at the process of launch. such as error at address 0x00000005. but I don't know how to fix it.
Some one told I should replace a new mother board. I bought this laptop at the fall of 2006, but my kid used only one year. it has not been used because this trouble. Is it the reasonable idea to buy new motherboard?
thanks!
Mike

Thanks for any response advance!
I tested this lapton again as following:
1. Boot from orininal recovery disc, erase and partition hard drive
2. continue to boot from recovery disc, select option of recovery of factory default software
3 finish the process to create CRC, and screen show the recovery completed
4. Screen shows " Apply final configuration (Don't interrupt)
5, Window Xp show to shut down, and restart laptop, the normal desktop screen is shown
6. pop up window indicates "load personal setting"
laptop repeatly step 4 to 6 two to three times, then I had couple different results:
a. laptop still power on, screen does not show any image, black, but it is different to the "black" without power.
b. a small window indicates: This system is not fully install, please run setup again"
If I manually shut down this laptop, and make cold power up:
a. stay at Window XP initial image, can not go to next
b. laptop show blue screen for one second (looks to make disk check), go to option to select safe mode or normal mode
c. go to Window guiding setup, I finished the Windows XP set up step by step, laptop freeze
The trouble begins at the step of "Apply final configuration".
Do I need to order the disc of Recovery and Application/Drivers, Satellite A100/A105 Series"?
Any suggestion? thanks!
Mike

Can't boot to safe mode or recovery

Hi
I was watching a video in Quicktime, with a few other videos paused and some pictures open in the background. I got a facetime call, so I paused the video and took the call. After hanging up, I maximised the video and attempted to play. My machine pretty much locked up (spinning wheel) although for a few minutes I could switch into an application, at which point that application would also freez
After a few minutes I did a forced shutdown with the power key. I then went through a series of unusable boots which got to various stages before locking up and requiring another forced reboot
1) User selection screen, mouse couldn't move
2) User selection screen, managed to input most of my password before lockup
3) Apple logo and spinning dial
At this point I realised it may be breaking when it tries to re-open the same video/pictures/browser windows etc as were open on the last boot, so stopped trying to boot normally
4) Attempted to enter safe mode holding shift, got a "No Smoking" style grey logo (without the cigarette, obviously) with a spinning wheel
5) Repeat of 4, in case I just held shift at the wrong time
6 onwards) A white screen
I've tried holding shift to enter safe mode, and Cmd+R to enter recovery. I even tried Cmd+shift+P+R as it was suggested elsewhere.
suggest
Any ideas? My next attempt will probably be to swap my old HDD back in - I replaced it with an SSD 6 months ago - in case the SSD has had an issue.

Further info
I've swapped the old HDD back into the machine, and now I get an Apple Logo with spinning wheel. I still can't boot into safe mode nor recovery
The SSD is Mavericks, the HDD is Lion, I believe, possibly Mountain Lion

Firefox won't close without using Task Manager - end process; can't start in safe mode or disable add-ons

I've been having a memory leak/hanging problem for weeks -- FF slowly increases memory usage until it's at almost 100% and then freezes and I have to shut it down via Task Manager/end process.
Last week I updated to FF 12, and I also added the Web Developer 1.1.9 add-on. Now every time I open Firefox it tries to go to the "Web Developer installed" page, but the page never loads. Nothing else will load either.
I can't start in Safe Mode because of the problem with having to close it in Task Manager. I select "restart with add-ons disabled" and it just never opens. The Add-On manager page won't load, so I can't disable Web Developer to see if that's the problem.
I've uninstalled Firefox and reinstalled, and it still goes right back to the Web Developer page when I open the freshly installed copy.
Help, please!

Have you already tried clearing the browser cache, opening a blank tab, and trying to open some other website ?
* [[how to clear the cache]]
Instead of trying to open safe mode from within the User Interface menu have you tried alternative methods such as holding the shift key when you start Firefox. (After checking for running Firefox processes or plugincontainer and killing them if found )
* see [[safe mode]]
* [[firefox hangs]]
If using safemode does not help first of all try creating and using a new profile.
* [[Basic Troubleshooting#w_8-make-a-new-profile]]_8-make-a-new-profile
If all the above fail then try a clean re-install of Firefox
* [[Basic Troubleshooting#w_7-reinstall-firefox]]_7-reinstall-firefox

After reinstalling MAC OS 10.6.8, config the permissions to read/write/no access, my MacMini [mid 2010] refuses to reboot. I tried to reboot in safe mode with fsck, but after the steps to be taken, it says fscs not done, root device is read only

After reinstalling MAC OS 10.6.8, I config the permissions to read/write/no access, my MacMini [mid 2010] refuses to reboot. I tried to reboot in safe mode with Command+S and fsck, but after the steps to be taken, it says fscs not done, root device is read only. I also tried to bypass the Mac firmware password by taking one Ram card out and reboot the macmini while holding COMMAND+OPTION+P+R. But no luck. The macmini is not able to see the mac OSX installation CD.
Please help ??

f.fromleiden wrote:
After reinstalling MAC OS 10.6.8, I config the permissions to read/write/no access, my MacMini [mid 2010] refuses to reboot.
How and where did you change which permissions? And what was the goal?
Do you have a complete backup of your system? and more importantly data files?
What happened that prompted the need to reinstall the 10.6.8 update?
The immediate road forward would be to boot from the optical drive and revert the changes you made.
What happens when you boot with the install cd and hold down C or hold down the option key?
[Off topic: I've been to Leiden a few times ]

My 6th Generation Nano Shuts down my Thinkpad, I've tried uninstalling iTunes, turning off auto sync'ing and restoring my ipod, but every time I plug in my iPod, my whole pc goes blue and then reboots in safe mode. Please Help. Thanks.

My 6th Generation Nano Shuts down my Thinkpad, I've tried uninstalling iTunes, turning off auto sync'ing and restoring my ipod, but every time I plug in my iPod, my whole pc goes blue and then reboots in safe mode. Please Help. Thanks.

Hello kidmango,
I am going to have to agree with planb77. Look into other drivers in your computer causing the issue, not just the nano's drivers.
It is possible that security software is the culprit. Use this:
iTunes: Troubleshooting security software issues
You may have to restore your computer to a previous point. From before the issue started. Contact computer manufacture or Windows for steps, or do a search with a search engine.
I would test the ipod on a known good computer to see if its the ipod is the issue. My gut says no. You can set a reservation at an Apple Retail Store. Apple.com/retail .You can also test a known good ipod on your computer.
Hope this helps.
~Julian

I keep getting a Fatal Exception Error on start up, and I can only run in safe mode on my dv6

I keep getting a Fatal Exception Error on start up, and I can only run in safe mode on my dv6, can anyone please help? I don't really want to reset it back to factory defaults as I will have to re-install everything. I have tried going back via system restore, but it keeps telling me that there are no restore points? I am running Windows7 64 bit OS
Thanks in advance.
This question was solved.
View Solution.

Hi,
Start the notebook in Safe Mode and let Windows fully load. Hold down the Windows key and press R. In to the Run box type msconfig and hit enter. In the following window, click the Start up tab, remove the tick next to each start up item and then click Apply to make the change. Restart the notebook and see if it now boots normally. If it does, re-enable one start up item at a time, click Apply and reboot to check if it still runs ok. Keep doing this until you encounter the problem and you will know the last program you set to start is causing the issue.
Regards,
DP-K
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****Please mark Accept As Solution if it solves your problem****
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Microsoft MVP - Windows Experience

I recently had to get a new computer.It required me going from windows xp to 7 I am trying to put it one the new computer but I get following message Windows installer could not be accessed could be in safe mode.How do I get around it? need it to charge

I recently had to get a new computer.It required me going from windows xp to 7 I am trying to put it one the new computer but I get following message Windows installer could not be accessed could be in safe mode.How do I get around it? need it to charge my ipod on my computer.

I have used PCs for years, and still do at work. But, last year my wife bought me a 15" MBP with the anti-glare screen (I was getting ready to buy for myself). It took me all of 1 week to completely get used to the UI for OS-X, and now I really prefer it over the Win7 UI. I have no experience with Win8. Here are my thoughts:
1) You can get a good computer using either a Win8 machine or a Mac.
2) You will pay less for an equivalent PC. But not as much less as some would have you believe. You need to take into account the all aluminum body of the Mac (vs most PCs being plastic) and the size of the display. And, don't forget that there is a lot of bundled SW on the Mac that you will actually find useful and would have to purchase for the PC.
3) You can probably do everything you need on the PC platform with the right SW (you probably already know this since you are using one already).
That said, I think some things are easier on the Mac. For example, GarageBand is a standard part of the Mac SW installation. I got up and running recording directly from my bass into a track with a song imported from iTunes on another track in a snap. I only had to purchase a Jam adapter ($99) for the bass so I could come in over USB instead of using the audio in port (which did work, by the way). You can do the same on a PC, but you have to purchase the SW from somewhere. And, it probably isn't cheap.
I use VMware Fusion to run those Win programs I already owned because it was much less expensive to buy Fusion than to replace them.
I would not return to a PC for my own use, given a choice. But, I would be very careful about getting my wife a Mac without careful thought as she is not as tolerant of learning new things as I am.
So, there you go.

Reboot after safe mode

I rebooted in safe mode (OS-X Yosemite) to troubleshoot a problem (the com.apple.mdworker.bundles issues) and after rebooting in normal mode the App Memory is double than before booting in safe mode. Before App Memory was about 1.5 GB's with the basic stuff open, but after going through safe mode, the App Memory is now around 3 GB's, but there doesn't seem to be anything unusual in the Acitivity Monitor showing the new app memory. It's not a problem since the Mac Pro has 32 GB's but still it's a "Huh?" moment. Any ideas what happened or where to look for clues?

Sorry, misunderstood. Reboot into Safe Mode and see what it is, then back. Superficially, this means nothing. But you need to do it under the exact same conditions. For example, run no applications or utilities after the reboots (except Activity Monitor.) Many third-party items you may have installed will not normally run in safe mode, and that can account for a drop in total memory usage. Look at the memory info reported in Activity Monitor in order to compare. If there is anything unusual, it should become obviou

Most of my folders have disappeared inlcluding inbox 30+ folders return when in safe mode How do I fix this

First time situation occurred folders started to disappear as i read messages TB 31.5.0 win 7 pro 64 bit
Thunderbird user forever got into safe mode and disabled all add-ons - now all folders are visible and all content is accessible back to 2009 used mozback so I have backup restarted TB and back to 3 folders. Inbox gets created with the new emails that arrive. Filters send email to one of the visible folders 'Travel' When you open 'travel' all emails 23 unread are accessible. Go back into 'safe' mode and all folders and emails are present
Thanks

''Scotty2015 [[#question-1051017|said]]''
<blockquote>
First time situation occurred folders started to disappear as i read messages TB 31.5.0 win 7 pro 64 bit
Thunderbird user forever got into safe mode and disabled all add-ons - now all folders are visible and all content is accessible back to 2009 used mozback so I have backup restarted TB and back to 3 folders. Inbox gets created with the new emails that arrive. Filters send email to one of the visible folders 'Travel' When you open 'travel' all emails 23 unread are accessible. Go back into 'safe' mode and all folders and emails are present
Thanks
</blockquote>
no extensions , no addons uninstalled thunderbird, deleted all TB folders then rebooted win safe mode and ran Malwarebytes - no malware, rebooted normal windows and downloaded fresh version of TB reloaded profile using mozback. Still the same TB loads showing 3 folders no inbox and should be 2 accounts. Change to safe mode in TB and all files are present and 2 inboxes
i am not losing data just can only see emails when in TB safe mode. What TB profile files could be contaminated?

Firefox 3.6 keeps crashing on opening. Can't open in safe mode, can't see crash logs. HELP please.

Firefox worked fine last night. No changes/downloads but today it keeps crashing when opening. I downloaded new 3.6 version for mac but same problem. Tried to open in safe mode by going to the terminal and typing /Applications/Firefox.app/Contents/MacOS/firefox -safe-mode but nothing happens. Tried to see my crash reports as per the mozilla (/Library/Application Support/Firefox/Crash Reports/submitted) but the folders don't exist.
Crash report reads:
Add-ons: {7b13ec3e-999a-4b70-b9cb-2617b8323822}:2.7.1.3,{972ce4c6-7e08-4474-a285-3208198ce6fd}:3.6.11
BuildID: 20101012104758
CrashTime: 1288214674
EMCheckCompatibility: true
Email:
FramePoisonBase: 00000000f0dea000
FramePoisonSize: 4096
InstallTime: 1287680805
ProductName: Firefox
ReleaseChannel: release
SecondsSinceLastCrash: 726
StartupTime: 1288214672
Theme: classic/1.0
Throttleable: 1
Vendor: Mozilla
Version: 3.6.11
This report also contains technical information about the state of the application when it crashed.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
'''If Firefox is open,''' you can restart in Firefox Safe Mode from the Help menu:
* Click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
'''If Firefox is not running,''' you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' <br>(you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
;[[Image:SafeMode-Fx35]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.

Can't reboot in safe mode, how to reinstall OS X?

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