General :: External Optical Drive Not Write Access
Apr 2, 2011
I'm trying to backup netbook files to an external optical drive. I can read discs but not write. A while back I tried using K3b but it did not see the external drive. Now it does, but tells me write access is needed and quits. I am in the cdrom group.
On one of my machines the DVD/DVDRW/CDROM drive appears as /dev/hdc and is not identified as an optical drive by HAL. It is owned by root: disk and thus no users get permission to read/write in the device (not even those in the cdrom group). This stops playing DVDs, ripping CDs, no notifications appear when a disk is inserted, etc. etc. When I set the permissions for all to read/write from the device then users can access but still no notifications are shown.
On all my other machines the optical drive is identified as /dev/sr0 and is owned by root:cdrom . All have Slack 13.1 . Previously with Slack 12.2 this machine still had the drive in /dev/hdc but the permissions were right (I think because I added it to /etc/fstab with options for users to access it). I believe the problem is down to HAL not setting this drive to the correct group, but how do I fix it? I hate HAL, it has a mind of its own, just like in the scifi movie
Sorry if this question might sound stupid I'm a complete noob here. I bought an ASUS EEE PC 901 second hand and had reformatted the hard disk with a fresh installation of Ubuntu 10.10 netbook remix. formatted the 2 drives as follows : 4 gb hard disk space ext4 , and 8 GB hard disk space ext4 This was after countless problems with Ubuntu 11.04 Desktop edition previously not being able to connect to the internet via my home wifi router. I took the advice on this forum somewhere, someone said 10.10 NBR will not have issues with wifi connectivity. Tried it and it worked. On my current Ubuntu NBR 10.10 installation, absolutely no wifi connectivity problems whatsoever.
Now my brand new MyLink portable USB Optical Drive which plays DVDs and CDs has arrived in the post. I open it, plug it into my ASUS eee pc 901. And nothing happened. I am used to using Windows and its Plug and Play function. Now for the life of me, this just doesn't happen in Ubuntu right now. The computer does recognise the drive though. Under Applications > Disk Utility I can see the optical drive right there and there's an option to use Brasero to copy and burn DVDs. However no option to play. I tried using the Movieplayer that comes installed with this Ubuntu version to play the DVD I'd insertedd into the drive, but on clicking "Add file" to try and search where on the system the DVD file is located, nothing turns up. All I can see are my home directory and the files on my hard drive.
The external optical drive came with a CD with the drivers on the CD, meant to be installed I think. But I have absolutely no idea how to install it on Ubuntu. Or if I need to install it.Can anybody help me out please? I'm starting to think maybe I should have just stuck to the Windows XP that came with this netbook. I would prefer to stick with Ubuntu though as its supposedly faster than Windows...
I have an external CD/DVD usb drive and as soon as I insert a disk (I've tried both CD and DVD), the drive icon disappears (unmounts?).I thought it was a bus power issue because it is a mini laptop (Asus Eee PC). This small/slim external drive has two USB cables, one for power and one for power/data. So, I plugged the power cable into my nearby Windows desktop computer and just the power/data into the Ubuntu PC.
I have an Iomega External Hard Drive 1TB. Problem: Unable to write to Ext3 Partition. How I got here: Started off with going into windows and shrinking it's current NTFS partition down by 50GB. Then used an Ubuntu LiveCD to gain access to GParted and with that 50GB free I formatted it with an Ext3 system. It does this no problems. I then can't write anything to this partition? I've tried doing "chmod 777 /dev/sdb2" but it says Operation not Permitted.
EDIT: Need to be able to use it on YDL 6.2 on my PS3, YDL doesn't have NTFS write support and I want to transfer files larger than 4GB rendering Fat32 useless. No I'm not able to re-size or compress this large file.
I have an external hard drive connected via usb cable - /media/New Volume - and mounted in Ubuntu 10.04. How can I "write zeros" to this drive or maybe write random characters in an effort to wipe data on this disk?
I'm trying to back up my hard drive to a 2 TB WD external so that I can do a clean install of 10.10, however I'm getting tremendously slow write speeds. It hovers around 1.5 MB/s and steadily slows from there. It tells me it will take 150+ hours to transfer 400 GB of data.
I have a AMD quad core processor and 8 gigs of ddr3 ram... USB 2.0... I feel this should go much faster.
I have an external USB drive with one ext4 partition on it. When I plug it in it's mounted and a file manager window pops up. However, I am not able to create files/folders unless I'm root. I have to open Nautilus as root to put files on it. How do I set it so that I as a user can add files/folders to the drive having them end up with the same owner/permissions I have as a user? It's to cumbersome having to sudo every move with regards to the USB drive.
I had an external harddrive connected via USB to my laptop, and I was copying all the data over to another drive so that I could format this one. About 1/3 of the way through copying, the power went off and the drive obviously shut off (laptop kept running since it's on battery).
Now when I try reconnecting the drive and mounting it, I get the error "mount: Stale NFS file handle". Same error on 3 different linux machines. I have read as much as I can on this issue and done the following to try to recover the drive/data. fsck multiple times, with different options, but exits every time with an "aborted" message after cycling through over 1000 inode errors. Then, tried recovering superblock from all backup locations on the drive. This didn't help either. I backed up up the drive with dd command so I have an image file just in case.
Any functions to do with partitioning refuse to work too. I am stumped here as I need to recover this data somehow and I haven't a clue as to what/why this happened. How I can recover the contents of this drive? And the drive is/was ext2.
I've got an USB-to-IDE hard disk drive enclosure to revive an old IDE harddrive. I installed the drive and connected it to my pc running opensuse 11.2. Unfortunately the drive wasn't recognised, so I couldn't access it. This is the output of dmesg:
Code: May 18 18:53:57 advo kernel: [81051.520117] usb 1-4: new high speed USB device using ehci_hcd and address 10 May 18 18:53:58 advo kernel: [81053.041979] usb 1-4: New USB device found, idVendor=058f, idProduct=6391 May 18 18:53:58 advo kernel: [81053.042107] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 May 18 18:53:58 advo kernel: [81053.042208] usb 1-4: Product: USB TO IDE Bridge
Running fedora14 on a dell latitude-d600 laptop and I'm trying to access a 500gb sata external hard drive that is connected via usb. The laptop can see the drive as '500 GB Hard Disk: 524 MB Filesystem' and it's clearly mounted under the '/media' directory. However, when I attempt to read the files on it, I am only able to see the 524mb section of the drive. The external hard drive is an ext3 file system (running fedora13) and I believe it's encrypted.
I've encountered a very frustrating problem. I have both my desktop and my laptop computer installed with Ubuntu 10.10 recently. And I use a external hard drive formatted in EXT3 as a backup. I created the EXT3 partition on my external hard drive using my laptop, but I cannot access those files using my desktop. What's going on? If one day I lost my laptop, does it mean even if I have backup, I can never access without my laptop??? How can I solve this problem?
Is there any dvd drive with longevity? The boxes in this "normal" house have had 100% failures on dvd writers and readers in recent years. I'm an electronics guy and know why this happens - minute changes in the careful balance on the reading head, not helped by the facts that:
1. low grade adjustable resistors are often used
2. The range of adjustment is far too great, making it impossible to retain a stable preset value.
3. Optical diodes lose forward voltage drop over time. If they start at, e.g. 1.2V after some months or years the forward voltage will be down to 1.0V. This changes the current, hence the brightness.
i borrowed an external hard drive from my friend to back up a load of stuff on my windows partition before reinstalling it. I am doing this through ubuntu. I am trying to zip up folders like My Documents etc and chuck them on the external hard drive but it always comes up with errors to do with read/write permissions. In the permissions tab on the folder properties of the ext hard drive it says I am owner but i have no file access (only folder access is create and delete files). When i try to give myself read/write permission it just goes straight back to nothing when i look at it again.
Recently my laptop broke down and wont start up. I'm currently trying to recover my files to my mac with an IDE to USB cable. It recognized my windows partition fine and I was able to get all my files off of that, but the majority of my stuff is on the ext4 partition that I have on it. Does anyone know how to access the ubuntu partition of this hard drive from my mac?
I have an hp laptop and i had ubuntu on it for 3 years. my hard drive started to fail a while ago (i had ubuntu 10 on it until 1 week ago) and a then it all went black...I took the laptop to a repair shop, they told me it was the disc, so i bought a new disc, installed it on my laptop and reinstalled the new ubuntu 11. so far so good. i have now a working OS, internet connection and i can in fact type this message.
The thing is: all my files are on the old drive, which doesn't load/boot/start/read anymore. I have tested it on some friends's pc, tried a few HD disgnostic tools, they all send the same message: "fail"
I then tried to mount my old drive (with all my precious files in it) on my laptop as an external drive (usb) hoping that ubuntu 11 could read it as an external usb key: it gets read by the system, but it shows no files at all. it also shows an error message saying the drive can not be mounted, with some "sdb1" thing. i am sorry but i'm really dumb when it comes to tech language.
Then i tried to boot it on start-up but i got the grub rescue> thing and nothing else, just a sad, blinking cursor to recover my files,i have also tried testdisk but couldn't understand very well how to use it, and then photorec, from which i recovered bits and pieces of files, with no name. some of them are just parts some of them are complete.
My problem is: i have to get access to my files, as I use them for work, i couldn't do a back-up recently and i have some real important deadline to meet... for which i need those files. is there any way i could solve the grub issue and have that drive load/mount again as external usb?
I have a pc with linux mint installed, and wanted to try edubuntu with my kids. The first time we tried, it booted just fine from the dvd, as the bios is already set to boot from dvd as priority. So it ran off of RAM.
Subsequent tries however, result in the pc booting mint from the hdd, and no sign of edubuntu at all. I have tried different distros/isos, but to no avail. I have also opened the box to see if the dvd drive had somehow come unplugged.
I tried to burn a cd today and k3b told me it couldn't find an optical device. It suggested making sure HAL was running, it is. Nothing has changed except auto upgrades, so I tried an apt-get upgrade to see if that would make a difference. It didn't. Burning has never been an issue before, and googling all day hasn't provided any answers, apart from finding /etc/init.d/hal The permissions haven't been changed.
james@Lenny:~$ ls -l /media total 8 drwxr-x--- 2 root root 4096 Feb 12 00:14 apt lrwxrwxrwx 1 root root 6 Jan 21 2009 cdrom -> cdrom0 drwxr-xr-x 2 root root 4096 Jan 21 2009 cdrom0
I have a strange problem with my DVD player. The problem: My device seems not to read any CD (it does read DVDs). Prologue: On a previous installation I had the same problem. But after messing up with that system I made a re-install, and the problem was gone. So I wasn't concerned about the problem any longer. That would be fine, but recently I had to make a new re-install to have space for windows. (I know, I'm a sinful man) But now the problem is there again. And it even is there under windows.
Question: In how far is the hardware damaged or is it a software problem since it once worked? Hardware data:
-Systems: Fedora 12 & Vista -Laptop: Dell Studio 1555 -Drive: Optiarc Model: DVD+-RW AD-7640S Rev: HD18
What I have been doing to fix the problem:
-I made an update of the firmware and bios with the files provided by dell -cleaned the lenses (with a clean disc) -checked log files (both windows and linux)
After setting udev to debug logging I received this
I seem to be having a problem with burning CDs. Whenever I launch k3b, it says 'No optical drive found.' However, When I insert a CD while in KDE, it properly mounts it. What do I do? It seems like udev/hal is working fine. Also, I can't get KDE to recognize any inserted flash drive or external usb storage device inserted on demand.
So if I boot without a DVD or CD in my optical drive, then I attempt to put one it, it doesn't mount. I try mounting with the terminal and that fails as well. If I boot with the media in the optical drive, it works fine. (this problem occurs both on my desktop and laptop and I know the DVD and CD's work in both 9.10 and in windows, This error also occurs with Linux Mint and Sabayon leading me to believe this is a kernel issue).
What do I need to do to get this to work like it should? I have been asking about this since the beta of 10.04
I have this rather old Compaq Presario 2184 (Celeron processor), with a completely busted optical drive - which means I cant boot from Live CD, and it doesn't boot from USB, either... which means I cant use a live memory stick, either. It's currently running Xubuntu 9.04.
I'm seriously running short of space on my root partition - can't upgrade to 9.10...
I had a Windoze partiion that I decided to remove, using Gparted. Identified the NTFS partition, right click, delete. After that, I couldn't do anything else... I then found this page, that told me that I cant resize all partitions while booting from hard drive, and that I needed a Live CD. For the reasons mentioned above, that's just not possible...
Are there any alternatives that the good folks here can suggest? For example, can I create a new partition, and move my entire /usr there? It would solve the space problem, but I'm not confident of doing it without screwing up something... could someone kindly guide me through the process?
Hardware is a Supermicro with C2SBC-Q board, have set up a RAID1 with 3 WD drives, the BIOS "sees" the "LightScribe" DVD drive but it is not being recognized by CentOS (5.2 x86_64). It's on an IDE bus, set to "master".# dmesg | grep -E 'CD|DVD|hdc' produces a new prompt with NO feedback, BTW.I have CentOS 5.2 i386 running on this machine with the same DVD drive, it was not an issue.