Fedora Hardware :: Reading Old SCSI SCO Unix Drive?
May 17, 2011
I need to read some data from a hdd that belongs to an old SCO Unix system. The SCSI card is PCI so I unplugged it from the old SCO unix box and stuck it in a new computer and booted using a Fedora 14 USB pen drive. The SCSI card was recognized and so was the hdd but it was not mounted. I then went into Applications, Disk Utility, and found the hdd. Under 'Edit Partition' the type was blank. I was tempted to set it to 'Extended' but was not sure whether that could damage the data on the disk. Does anyone know whether I would be able to read this Hdd by setting the type to 'Extended'?
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Jan 25, 2011
I have a Unix based question. Intro:Trying to create local image which is coded by the cryptsetup tool. Here are my steps:
abcdef# dd if=/dev/zero of=image.img bs=512M count=1 1+0 records in 1+0 records out 536870912 bytes (537 MB) copied,6.39732 s, 83.9 MB/s abcdef# cryptsetup luksFormat image.imgWARNING! ======== This will overwrite data on image.img irrevocably. Are you sure? (Type uppercase yes): YES Cannot read device image.img.
Q:How can I make it work correctly(creating local image with crypting support) or how can I (if its possible of course) to swindle my os?
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Sep 28, 2009
How do I get my CD-ROM drive to read its contents? I am trying to read a music cd and it won't show in Dolphin or in other OS windows. I am using F10KDE.
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Jun 22, 2009
I just downloaded the Fedora11 LiveCD and booted it......it boots, but when it starts to load KDE, it takes a very long time, and it never ends. It just keeps on reading from the CD-ROM drive. I can see the GUI is loading, but the loading time is so long that the mouse sometimes freezes. My Config is 512MB of RAM and 2 IDE Hard Disks. Also note that I verified the image with SHA256, and even burnt the CD at two different speeds, one at 48X and the other at 16X. Still nothing. There has also been severe kernel panics on EXT4.
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Feb 15, 2010
i m facing same error in most of the HCL servers. the problem is that it throws error while booting and sometimes not throws error. the error is :-
Feb 13 13:17:25 fe13s kernel: Adapter 0: Bus A: The SCSI controller was reset due to SCSI BUS noise or an invalid signal. Check cables, termination, termpower, LVDS operation, etc.
Feb 13 13:17:30 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc
Feb 13 13:29:15 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc
code....
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Apr 11, 2011
In my understanding, the way /proc/scsi/scsi gets populated, /proc/paritions also gets populated in the same fashion. i.e. the description for first entry of /proc/scsi/scsi can be seen in the first entry of /proc/partitions and same for rest.
So, With this assumption, in my project, I used to relate first entry of /proc/scsi/scsi with first entry of /proc/partitions to get its total size and same for all entries.
But, I observed some differences in following scenario, where
1) The first 4 entries in /proc/scsi/scsi are SAN luns attached to my system and for which the actual device names in /dev/ are sda,sdb,sdc and sdd.
2) The last 4 entries are the internal HDDs on same system. In /dev/, their respective device names are sde,sdf,sdg & sdh.
(Output attached at end of the thread)
But in /proc/partitions, the device order is different.
You can see their respective sizes in /proc/partition output as well.
So, my question is, in this particular scenario, I can't relate the first entry of /proc/scsi/scsi with first entry of /proc/partition. i.e. scsi0:00:00:00 is not /dev/sde, because it is actually /dev/sda.
It seems that my assumption is wrong in this scenario.
Is there any way or mechanism to figure out actual device name for an entry in /proc/scsi/scsi in /dev/ directory?
How can my application should relate /proc/scsi/scsi entries with their respective device names and sizes?
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May 4, 2010
When I enter "cat /proc/scsi/scsi" I'm returned with "cat: /proc/scsi/scsi: No such file or directory". I've tried this on two different installs on two different machines.
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May 29, 2010
I try to use a usb pen drive. The usb pen drive show up under computer but not like a drive in geparted. When I look in the log file I find the drive
Code:
May 29 10:11:46 CQ60 kernel: [ 112.942602] scsi 6:0:0:0: Direct-Access
USBest USB2FlashStorage 0.00 PQ: 0 ANSI: 2
I do not know what this mean but it looks like the drive show up like a scsi and not usb or? I need a clue to get it work like a normal usb device.
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Feb 21, 2009
I just installed centos 5 on a hp dl380 server and it has 2 72.8 scsi gig hard drives. The problem I am having is that only one hard drive is being recognized and it is not being recognized as a scsi. This is what I get from fdisk -l
Disk /dev/cciss/c0d0: 72.8 GB, 72833679360 bytes
255 heads, 63 sectors/track, 8854 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/cciss/c0d0p1 * 1 13 104391 83 Linux
/dev/cciss/c0d0p2 14 8854 71015332+ 8e Linux LVM
as you can see, the system doesn't even see the second hard drive. How do I get both hard drives to be seen and how do I get them to be recognized as scsi?
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Jun 23, 2011
Some of our workstations have LTO's attached and they seem to drop off every now and again, the only thing which picks them up again (besides a reboot) is the famous rescan-scsi-bus script from here
The thing is that I'd like non-root users to be able to run this script, which in turn needs root to /proc/scsi/scsi
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Oct 18, 2010
I have just purchased (AT ENORMOUS EXPENSE) a used 306637-004 36 GB hard drive. It has come, by default, with no jumpers and my scsi controller recognizes it as SCSI device 0.Very inconvenient as it clashes with my existing IBM 9GB drive I am loth to play about with.Does any kind person out there know how to jumper this drive to be SCSI ID 1 or 2 (say).
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Jan 22, 2010
I did an installation of SUSE 11.2 on a new SCSI hard drive. Keeping the old hard drive separate. I remembered there was some info on the old hard drive I wanted.
I added this to the system and mounted a partition. I then copied the data over. Then I umounted the partition rebooted the machine and removed the hard drive. However the machine will now not boot without this hard drive even though its not mounted. Not sure what the error message im given means I think it could be trying to fchk it.Do I need to do something more like remove /dev/sdd ?
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Mar 23, 2010
I am setting up a new server and am in the midst of testing RAID. This is an Ubuntu 9.10 server. RAID1 (/dev/md1) is spread across 12 one-terabyte SCSI disks (/dev/sdi through /dev/sdt). It has four spares configured, each of which are also one-terabyte SCSI drives (/dev/sdu through /dev/sdx). I have been following the instructions on the Linux RAID Wiki ([URL]....
I have already tested the RAID successfully by using mdadm to set a drive faulty. Automatic failover to spare and reconstruction worked like a champ. I am now testing "Force fail by hardware". Specifically, I am following the advice, "Take the system down, unplug the disk, and boot it up again." Well, I did that, and the RAID fails to start. It outright refuses to start. It doesn't seem to notice that a drive is missing. Notably, all the drive letters shift up to fill in the space left by removing a drive. The test I did was to:
[code]....
Is removing a disk from the bus a reasonable test in the first place? Meaning, is this likely to happen in a production environment by other means than a human coming by and yanking out the drive? Meaning, is there a hardware failure that would replicate this event? Because, if so, then I don't know how to recover from it.
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Apr 30, 2010
I am running fedora 8 on a Dell 2950 with a qlogic fibre channel card.is attached to a Dell/clarion AX100.I had a drive assigned to this server which had been working for approximately a year now.Recently during a power failure things turned ugly. Rebooting didn't fix things.I unassigned/reassigned the drive, rebooted, still no good.Funny thing when I unassigned the drive and reboot the system.still see /dev/sdb but no partitions and fdisk -l does not display /dev/sdb.I even did "echo 1 > /sys/block/sdb/device/delete"
and the device no longer showed in /dev, but after a reboot it is back.I pulled and reseated the fibre card, same
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Dec 4, 2010
just bought an adaptec 39160 PCI scsi controller and 34Gb drive and installed it on my computer.When i Booted it up a utility thing ran which said 'detecting array' and it found the drive and its size etc. it didn't go any further to allow my system to boot, so I rebooted and pressed CTRL + A to enter the adaptec scsi config. I changed something in there to make the disk non bootable (i Think) and rebooted the system.
It now hangs at :
'Detecting Array .....'
and does not show the drive details or the CTRL + A option to enter the utilities. So the only option I have had is to remove the adaptec controller ( and the system boots fine) the mother board is an Abit an8 ultra - probably about 4 years old and cpu is amd 64 I guess i have broken it and my remedy would be to reset the default options on the adaptec controller, but you can probably guess I have v. limited knowledge and have not used scsi before.
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Aug 12, 2010
I have successfully setup a FOG server to image my Windows clients, so I have tftp, pxe and anything else related to booting to a pxe server setup and rocking. What I'm trying to do now, is use the CentOS net install files to setup CentOS on an old server with no USB boot option, and a broken scsi cdrom drive (it's a Dell PowerEdge 2400, with a single PIII 733 and 1.25GB ram).
Using the FOG Projects gparted wiki entry (adding gparted to the pxe boot menu) I was actually successfully able to pull the net install files over to the PE, and install CentOS 5.5 via local ftp server. At first it kept erroring out (I kept picking and choosing individual packages from the package groups), so I thought it may be an issue with the GUI install (the python script kept spitting back errors forcing a reboot). In any case, I finally got through the GUI install, but now I need / want to know how to force a text mode install.
[Code]....
the bolded "append" line is where I thought I could force the text mode install script, but that didn't work. The vmlinuz and initrd.img files were both pulled form the net install iso, NOT the livecd. Would that have made a difference? If not, what / where / how should I force the text mode install script?
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Jan 25, 2010
After connecting, dmesg shows:
Code:
After that, there are no /dev/sd* entries. the hard drive works as expected on my windows box. how can i mount this drive?
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Mar 24, 2010
Does CentOS 5 support HP EH854A LTO4 External SCSI tape drive?
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Feb 23, 2009
i have been using samba to gain access into windows computer through my pc which has fedora 8 ..can i access the unix machine from another unix machine? is yes then what is the procedures ?
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Nov 16, 2010
Solaris is the os used. I want to copy files from UNIX Machine to windows network drive.I know smbclient,ftp can be used. But is there any other best option i can use?
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Apr 22, 2011
Installed Ubuntu 10.10 this morning from CD, downloaded all the latest updates. But when I put a CD or DVD in the drive, I can't access any of the data. Disk utility recognises that the drive is there, but it says "No medium detected".
Disk utility recognises it at /dev/sr0 so I added a line to fstab
/dev/sr0 /mnt/dvd udf,iso9660 user,noauto,exec 0 0
but made no difference
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Feb 1, 2010
I've installed libfuse2 and ntfs-3g. Now when I reboot, the drive shows up in fdisk. In Gnome File system, the folder shows up in /media as /media/Storage. I didn't issue the mount command, it went there automatically. In terminal, I can access Storage and read/write to files on it. BUT, if I double-click the folder in Gnome, I get a brief glimpse of all the folders in Storage, then they disappear and the drive unmounts. The desktop icon goes away, and I can't see it when I issue sudo fdisk -l. I can get it back with a reboot. I've tried an entry in /etc/fstab, but that makes no difference. I didn't find anything specific to address this on this forum or after Googling.
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May 2, 2015
I have a server set up with Samba. On the desktop side I use KDE. I can clearly track intensive smbd activity, being the first on the iotop results page. Another thing is that after reading from the server's HDD, it seems to write on the desktop's SSD. It does this intermittently.I really want to know how can I stop this. It's very annoying and I bet I don't need it since, using previous versions of Debian, I could go well without this activity.
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Jan 28, 2010
The drive isn't reading discs. Dmesg says PIO255(auto-tune) requested, PIO4 selected, UDMA33MHz.
An inexpensive drive with many failures noted on Google.
What command would I enter in grub following "ro quiet" to change the mode?
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Sep 11, 2010
I'm running badblocks on some new disk drives just to be safe before my return period expires. I'm running the command
Code: sudo badblocks -b 4096 -p 4 -c 65536 -w -s /dev/sdb1 on an empty partition taking up the entire device. I am getting the following output:
[Code]...
1) When it gets to the "reading and comparing" phase, it seems to complete in <1s. I see other posts where people say this takes them as long as it took to write to the drive. I don't see any mention of this being quick, so I'm just afraid that badblocks is being denied read access or something.. Anyone familiar with this behaviour?
2) Obviously since it is on a sixth pass, badblocks thought that it found new bad blocks on the second pass (or later). When I check SMART, though, the drive has not re-allocated anything (despite having plenty of spares)... Doesn't this seem odd? Is there some reason why the disk would not step in upon a write fail? In fact, I thought a write fail should be transparent... Which makes me wonder if question 1 (above) is causing this...
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Oct 30, 2010
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??
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Jun 28, 2011
I wish to read the Manufacturer data and other details such as Device ID, Serial number on a USB drive.
1. Could anyone help me out with information on the memory structure of a USB drive? (which location is the mnfr data stored?)
2. Are there are any commands in Linux that will help in reading/accessing this data?
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Mar 18, 2010
I wanted to check the first sector of my USB stick, and so I issued:dd -if=/dev/sda -bs=1024 -count=1It showed me all the weird characters from the data, then after it executed my bash prompt became corrupted with the same kind of characters! Also, everything I typed was like that. (see the picture)Luckly, it was just that tty that became like that.How can I fix the fonts after something like that happens, and how to prevent it from happening whenever I use dd again?
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Jun 12, 2010
I inserted a disc and tried to access it through Dolphin. It shows up in the directory explorer thing as a disc and with the disc name, but it has a little / thing in the bottom corner of the icon, and when I try to access it, it gives me this long error on the bottom of the file area (can't remember what all it said, something about 'harvey' and being unable to find the directory in /etc/fstab). The same thing happened with an external drive, which seemed to work fine before but now has the same problem.
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Jan 12, 2010
Earlier tonight my computer froze when I was moving some folders on an external hard drive (ntfs) and I had to manually shut down. Now nautilus crashes whenever I try to access the drive, although if I open nautilus as root it works fine.
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