We have G5 PPC with Mac OS 10.xx (panther?). I need files from it, but we don't have the passwords for the machine, and have no disks with which to recover data or reinstall the OS. So, I used an Ubuntu Jaunty Jackalope 9.04 disk and mounted the drives, but when I try and open the target dir, I get permission problems.
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I am having a laptop with Vista installed on it. I have an Ubuntu live CD (karmic) which is refusing to boot on this machine. I get an error : "Error reading boot CD" and a reboot button. I have tried this cd on other machines and it works fine. I tried live CD of kubuntu also but the same error message appears. What could be the reason?
Machine spec: 2GB RAM, Intel core 2 duo processor.
I have successfully used a Knoppix Live Boot CD to read the disks of a Windows Computer running XPI need to move some registry files around to make it boot into XP again, but I get a denied access error when pasting files into a directory
View 8 Replies View RelatedMy mac osx hard drive does not boot anymore and I would like to get my important files off before I reformat the hard drive. I have run into a bit of an obstacle -- there seems to be some permissions setting that are barring me from accessing the files I need to. I can see the Machintosh HD and can access some files. How do I change permissions for the entire drive and all it's directories?
View 13 Replies View RelatedI would like to read unix file permissions into a bash array for processing but tbh I have no idea how to do this. Then I will check for each individual access right l, d, x etc.
View 11 Replies View RelatedWith F11 installed Apache is having permissions issues reading files out of the html directory. Only wants to work with permissions set to read for other. [Thu Jun 11 23:25:28 2009] [error] [client 127.0.0.1] (13)Permission denied: file permissions deny server access: /var/www/html/index.html Tracked down the permissions issue. Is there a good reason not to change the group to apache and remove world read?
View 1 Replies View RelatedI don't understand the results of a simple performance test I ran using two basic scripts (running on a high end server):
perfVar.zsh :
#!/bin/zsh -f
MYVAR=`cat $1`
for i in {1..10}
[code]...
Performance test result:
> time ./perfVar.zsh BigTextFile > /dev/null
./perfVar.zsh FE > /dev/null 6.86s user 0.32s system 100% cpu 7.177 total
> time ./perfCat.zsh BigTextFile > /dev/null
./perfCat.zsh FE > /dev/null 0.01s user 0.10s system 91% cpu 0.118 total
I would have thought that accessing a VARIABLE was way faster than reading a FILE on the file system... Why this result ?Is there a way to optimize the perfCat.zsh script by reducing the number of accesses to the file system ?
I decided to install Maverick on another PC in the house. I downloaded and burnt the 10:10 live CD three weeks ago and installed it on my laptop without problem.
Now when try to install on this it read the CD as first boot device, goes to the language selection, and then the "try without installing/Install/check disk" etc. I select either "install" or "try without installing" and after s few seconds the drive spins down and thats it...nothing more happens.
I know the CD's fine as I already installed with it and the PC in question currently has a working version of Karmic on it. PC is an Acer L100 and the CD is the 32 bit version.
Update: After posting this I've played around a bit more. It seems most attempts it doesnt want to read the Live CD at all. After trying to boot from it and displaying the copyright line "isolinux..." it jump straight GRUB and boots my present OS. I've just tried the Karmic CD too and the same thing is happening. So maybe points to a problem with the CD drive??
Risk to native OS from Live CD?
when booted from linux live cd, all partitions of hard disk become accessible without any restriction. How to block this?
I'm an experienced Linux developer who has run into a little problem. I'm using a National Instruments 8170 chassis, among the normal ports, it has a FDD and USB port but this model does not allow booting from a USB CDROM ( I tried a BIOS update, that didn't help either ). I made this cool customized 550MB FC8 LiveCD wtih X, GCC, various apps, etc. and a kernel 2.6.30 & 2.6.18 boot floppy disk with all the needed drivers. The floppy boots to a shell with all the busybox utils, etc. and detects the USB CDROM media and all its files.
My Question is: How do I get the kernel and initrd on the Live CD to start or boot after booting from the Floppy disk ?, I mean, I want to load linux again but this time from the CD after booting linux from floppy, if that makes sense. I'm just using the floppy to boot and recognize the USB CDROM. This can be done with MSDOS and loadlin but loadlin has an issue(it hangs) with the newer kernels (2.6.18 and greater). I searched for the loadlin source code to port it to linux but was unable to find it on the net.
I have a simple C program that reads a 1 GB file from disk into memory.The first time I run this program, the process takes several seconds. But if I run this program again immediately after it finishes, the read happens almost instantly. What is going on here?My suspicion is that the operating system is realizing that the data I'm trying to read is still uncorrupted in memory (its been freed but not overwritten), so instead of reading it again, it just gives me the same block. I would really like to know what this process is called, or any Googleable keywords that would allow me to research it.
The reason I ask is because the size of my input data has increased. Now I need to read in a 6 GB file (my system has 12 GB of RAM), but I'm not observing the same behavior with the larger file. Each time I run the program the read takes an equally long time.
I need little help on live disk creation and disk image backup.
Can I create live disk using my hard drive installation? If yes then, can I restore the fedora from the live disk to the hard drive. I mean to say that from that live disk can I install fedora again in my hard drive.
Second question is, if I create the disk image of my hard drive( including ntfs & FAT32 partition) , can I restore it in a blank drive. If so , then can os will be restored also?
I've a faulty hard disk I'm trying to read data from before I send it to the professionals. The disk makes some "good" mechanical noise when plugged into an IDE-USB header into my machine, so I think it's spinning up OK.
Under Windows, the disk is seen in admin tools but I can't do anything to it; it's unreadable and unalterable.
Under Linux (Ubuntu), I see the sdb appear in /dev. No partitions though (no sdb0 etc). At first, I thought this implied that my MBR was bad and the partitions could not be found. But, using dd suggests it's a little worse that:
Quote:
sudo dd if=/dev/sdb
dd: reading `/dev/sdb': Input/output error
On a Linux CD/DVD, there are compressed filesystem images for the live version for KDE or Gnome for example, but they have no extension, but they are clearly an image file ( compressed filesystem images for the live version before installation ) !!
I was wondering, How do I mount these compressed filesystem images, after I copy the ISO content of the CD/DVD on my system .... I want to edit some files or packages and make some changes, like if I want to customize a live version of gnome for example ! ... ( I know you might be tempted to tell me to use KIWI etc to customize etc ..... ) ... but I want to be able to mount the compressed file system image, then edit it for reading and writing while it is in a subdirectory on its own ... i want to open it ! ... is there a way to do this ??? ... these type of files have no extension ...
i can open this compressed filesystem image then to edit for read & write ... before I roll it back again ..... If and when I succeed .... what should I watch out for ? ... will the same compressed file image but slightly modified work again ?
PS. that same question could be kind of translated or be extended like : how do I use unionfs/squashfs programs on the command line to mount these image files with no extension for read & write mode ???
Is there a way to re-install grub on the master boot record of a hard disk using a live cd?If so will i have to configure it?I'm trying to install a linux distro on my ao751h(with poulsbo ) but i after installing it i can't boot.I get an error 15 or a flashing underscore.I have already tried ubuntu,debian,mint and slackware(LILO isn't compatible with poulsbo).Also,does anybody experience problems with the ubuntu 10.04 and 10.10 installers or is it only me?when i choose the language and keyboard settings the installation stop as it is and i get a crash report.
View 4 Replies View RelatedWhenever I am busy reading or writing large files, or large sum of files, my computer is unresponsive. Screens are getting greyed-out and I just can sit there and wait until the reading/writing is done.
This is not caused by the CPU which is overstressed because it is not. Look at the attachments and you will see the CPU is used for about 20%. When these pictures were captured the computer was using hellanzb to unrar a long list of rar-files.
When you look at my signature you see the computer is not bad at all, just disk-access is slow. I can transfer files with a maximum speed of 30MB/s. Is that normal or is it very slow? I don't know the numbers. I have 2 SATA disks.
O.S. is Mint 9-Isadora, based on Ubuntu 10.04 and I use the 64-bits version.
Im using it in an attempt to backup all of the files off of my dead Windows xp Computer. Right now I am using the 9.10 live disk of Ubuntu and cannot get the program to recognize what kind of file system my internal hard drive is using. (A western digital 320 GB hard drive with partition 1 in NTFS and part2 in FAT32) I would like to be able to back up this drive onto my 1 TB Western Digital external hard drive that is also in ntfs.
Now here comes the wierd part, it won't read or recognize my interal and external hard drives that run those file systems but it will recognize and allow me to read, edit, and access all of the ntfs hard drives on my home network. I did some lurking and tried a tutorial for creating a mount point and on how to force mount a disk, but neither of my disks would show up in Places/Computer. So then I checked the /etc/fstab file and is says,
aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
Which I think means that it says I have no hard drives installed or connected to the computer. Yet when I go into Disk Utility it tells me the disk is there and asks if I want to format the disk into ntfs...
Its basically an old SATA Hard Drive with a Windows XP partition I was trying to sell.When my computer does the BIOS checks, it doesn't pass the SMART test (but I can boot it anyway), although I can't boot Linux in any way with this Hard Disk connected (I even tried Live CD distros, like Parted Magic).I can boot the XP partition from inside the disk, although I guess its pretty close to not being able to. Is there any way to "fix" this Hard Drive?
View 3 Replies View RelatedI am in the process of re-DL-ing the ISO as the checksums didn't match.
Mind you, that was with a shell extension in Win-Lose. Who knows.
Anyway:
I have the ISO (that I had previously) on a USB courtesy of UNetBootIn. All appears well until, quite quickly, I receive an error after the loading process which goes something like:
Code:
Error: cannot find disk at [hash-code - looks like 0ace5f etc etc, is about 12 char's in length.]Something very similar (but not same error I think) happened when I tried to do the same with my OpenSolaris or Fedora install. I.e., gets as far as the very beginning of the loader and then: bork.
At least one of them said "will reboot in 120 secs". Saves me the trouble!
I'm using Ubuntu 7.04 on a live boot right now so I can move from files from a hard drive on a computer that won't boot. This is my work computer, which contains about three years worth of accounting and inventory information that I absolutely must recover from the drive. The computer runs one SATA drive, and has no ports for additional drives. Otherwise I have two USB drives connected and an IDE connected through a USB adapter. (The SATA drive will not work through the adapter for some reason). I have absolutely no access to another computer with SATA support.
All the drives mount on 7.04, and I can view the files on the SATA drive - which leads me to believe the drive isn't completely dead. So i'm hoping to move the files I need over to one of the USB drives.
However, i'm getting flags when I move files. -Without- installing Linux, is there a way for me to grant myself permissions to move/copy/delete files on my hard drives? Otherwise, is there a simple way (that won't compromise the data on the drive) for me to re-do the partitions the SATA drive so I can install linux?
Have problem with HD too full so I have booted from a live CD hoping to copy my document and data files onto an external drive.
Have a problem with a couple directories on my HD. They have a X on them and when I try to copy them I get an error message that I do not have permission to read them. Same thing happens when I go to open the directory to see what files are in there.
I can get the permissions changed in live CD session so I can copy them to the external drive.
No luck doing it in a regular boot to my HD as it will not allow me in due to the HD being full. Even in terminal I can't access the directories in question because the seem not to exist but yet when I do a df command they show up.
P.S. This problem occurred after I updated to ver 10.4
I have broken my MBR and can now only enter 9.10 with the ubuntu start up cd.when i boot through he ubuntu live cd.I can see my mounted drive with all my files however i do not have the permissions to open or copy some of my files( music, films, pics) . id like to do this so i can transfer all my files to an external HDD and reformat start all over again.error when trying to open files.You do not have the permissions necessary to view the contents of.
View 1 Replies View Relatedi have this problem and i may need professional help; it appears smb4k made my /etc/sudoers file writable (according to log), hence, any sudo command will coerce this error:
Code: ubuntu@ubuntu~$ sudo any sudo: /etc/sudoers is mode 0640, should be 0440 sudo: no valid sudoers sources found, quitting i wanted to boot into recovery console and chmod 0440 /etc/sudoers, but it's a live system - it doesn't have a recovery mode. [URL].. How would i mount the live system from another liveCD?
I own a Lacie Network Space (1) which has recently given up the ghost - I looked into getting data recovered from it and it turns out it would cost around 500quid!! After doing some research I've found out that the drive runs linux - SO, I have bought myself a HDD cradle, Downloaded an Ubuntu Live CD, taken the drive out of the network space and mounted it in Ubuntu via USB. All good up til now, I've managed to get the majority of my data off except one folder - my music folder. It has quite a deep file structure (which maybe the issue) but essentially the permissions for the top folder have a padlock and a small cross - this doesn't allow me to even read the files to copy them off. I've now tried the 'chown' command: sudo chown ubuntu /media/ 999GBfilessystem/ openshare/audio
View 1 Replies View RelatedI`ve got a laptop with Lucid Lynx. After I tried to connect a smartphone to it, my permissions for all removable media (usb flash, dvd-rom, sd-cards) have somehow switched to read-only. When I use sudo rm -rf to delete files, everything works, but when I try to write something to the drive, all the files are skipped.
View 2 Replies View RelatedI am trying to set disk permissions on a Suse 11.2 installation. I have a disk that I want to put software onto but the installer cannot access the disk. How to do a chmod on a disk other then the main system disk?
View 9 Replies View RelatedI've already formatted it 3 times, it works for 1 try then it turns read Only again. I'm looking for a fix that doesn't make me delete everything before I want to use it, because this is getting ridiculous.
Going into further detail:
Randomly when sticking the USB into the PSP the console/computer chooses that it's READ ONLY and you can't change anything in permissions.
I have a problem with my external hdd, I mounted it manually and in the mount table it says ive got rw permissions. But when i try to change permissions it says:
chmod: changing permissions of `whatever': read-only filesystem.
This is my mount table:
[root@localhost ExtHDD]# mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
none on /proc type proc (rw)
none on /sys type sysfs (rw)
[code]....
I did a horrible mistake due to lapse in my concentration. Here is the 80 GB IDE disk geometry:
=> C: Windows XP SP2 15 GB partition
=> D: NTFS parition - 10 GB
=> E:F:G:H: NTFS partitions on the Windows Extended partition.
=> On the same Extended partition, there exists Linux /swap and /root partitions.
What happened was:
a) I wanted to delete the H: parition which was residing adjacent to Linux partition
b) By mistake I opened the Explorer and clicked the Mouse on H: partition and left it like that (forgot)
c) I opened Add/Remove program list but did nothing, to do few uninstalls after partition deletion.
d) Now I opened compmgmt.msc for Disk Management then deleted the H: partition!
Then XP reacted strangely and got almost hung
e) Then I switched OFF and ON the PC.
f) Most shocking was GRUB screen vanished (crash console appears) which means that Linux partition got deleted instead of H: partition!!
It's important to share with you that Fedora Core 12 possess the default BOOT flag. I thought that it's nothing big deal, only a case of Boot flag toggle with DOS bootable CD but am shell shocked to find after hitting the fdisk from DOS it says Error reading the disk!!! I felt like collapsed for a while, don't know how I did such a mistake. how to boot into my Windows XP. I can't afford to loose data or bear the expense on Data recovery
i installed kernel 2.6.34 to fix my lid closing issue, and that went great. but now when i go to reinstall my broadcom i get this error. Code: Reading package lists... Done Building dependency tree Reading state information... Done bcmwl-kernel-source is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Setting up bcmwl-kernel-source (5.60.48.36+bdcom-0ubuntu3) ... Removing old bcmwl-5.60.48.36+bdcom DKMS files...
[Code].....
