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gerard27
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PostPosted: Mon Aug 04, 2014 1:43 pm    Post subject: Weird output of fdisk [SOLVED] Reply with quote

I am running ~amd64 if it matters.

When I enter "fdisk -l" I get this
Code:

fdisk -l
fdisk: cannot open /dev/sr0: No medium found

Here's the contents of /proc/partitions
Code:

major minor  #blocks  name

  11        0    1048575 sr0
  11        1    1048575 sr1
   8        0  488386584 sda
   8        1     112423 sda1
   8        2   62914560 sda2
   8        3  425359569 sda3
   8       32  488386584 sdc
   8       33     102400 sdc1
   8       34  104857600 sdc2
   8       35  104857600 sdc3
   8       36          1 sdc4
   8       37  104857600 sdc5
   8       38  104857600 sdc6
   8       39   68849688 sdc7
   8       16  488386584 sdb
   8       17   10485760 sdb1
   8       18  104857600 sdb2
   8       19  104857422 sdb3
   8       20          1 sdb4
   8       21  104857600 sdb5
   8       22  163324952 sdb6

I have a second Gentoo install (~amd64 too) which I use to make backups on a USB HD of my "day-to-day" Gentoo.
On this one fdisk -l works as to be expected and /proc/partitions is identical.
Both installs have the same binutils version.
I need fdisk -l for when I want to copy stuff to a USB stick to make sure of the sdx it gets.
(fdisk /dev/sda works fine).
I've tried downgrading binutils but that didn't make any difference.
I am at a loss what causes this.
Thanks in advance for any help.
Gerard.
_________________
To install Gentoo I use sysrescuecd.Based on Gentoo,has firefox to browse Gentoo docs and mc to browse (and edit) files.
The same disk can be used for 32 and 64 bit installs.
You can follow the Handbook verbatim.
http://www.sysresccd.org/Download


Last edited by gerard27 on Tue Aug 05, 2014 1:08 pm; edited 1 time in total
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py-ro
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PostPosted: Mon Aug 04, 2014 3:02 pm    Post subject: Reply with quote

/dev/s(csi)r(aw) ist most probably not what you want. If recognized, the USB-HDD should be something like /dev/sd?

Look at your dmesg output to get more Information.

/dev/sr0 is most probably a optical drive, a scanner or something like that.

Bye
Py
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gerard27
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PostPosted: Mon Aug 04, 2014 3:41 pm    Post subject: Reply with quote

Thanks for answering py-ro.
I apparently didn't make myself clear enough.
The sr0 and sr1 are optical drives (RAM and ROM).
Fdisk shouldn't be reading them.
This is what I should get w/o a USB stick attached.
Code:

localhost ~ # fdisk -l

Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xa0fa5462

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sda1  *           63    224909    224847 109.8M 83 Linux
/dev/sda2          224910 126054029 125829120    60G 83 Linux
/dev/sda3       126054030 976773167 850719138 405.7G 83 Linux

Disk /dev/sdc: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x7de178fa

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sdc1            2048    206847    204800   100M 83 Linux
/dev/sdc2          206848 209922047 209715200   100G 83 Linux
/dev/sdc3       209922048 419637247 209715200   100G 83 Linux
/dev/sdc4       419637248 976773167 557135920 265.7G  5 Extended
/dev/sdc5       419639296 629354495 209715200   100G 83 Linux
/dev/sdc6       629356544 839071743 209715200   100G 83 Linux
/dev/sdc7       839073792 976773167 137699376  65.7G 83 Linux

Disk /dev/sdb: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000cf4c4

Device     Boot     Start       End   Sectors   Size Id Type                                                                                     
/dev/sdb1            2048  20973567  20971520    10G 82 Linux swap / Solaris
/dev/sdb2        20973568 230688767 209715200   100G 83 Linux
/dev/sdb3       230688768 440403611 209714844   100G 83 Linux
/dev/sdb4       440406014 976773167 536367154 255.8G  5 Extended
/dev/sdb5       440406016 650121215 209715200   100G 83 Linux
/dev/sdb6  *    650123264 976773167 326649904 155.8G 83 Linux


I loaded cd's in both optical drives to make fdisk behave normally.
As you can see they are not listed.
Why does it stop when there's no cd's loaded? It shouldn't.
Gerard.
_________________
To install Gentoo I use sysrescuecd.Based on Gentoo,has firefox to browse Gentoo docs and mc to browse (and edit) files.
The same disk can be used for 32 and 64 bit installs.
You can follow the Handbook verbatim.
http://www.sysresccd.org/Download
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gerard27
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PostPosted: Tue Aug 05, 2014 1:07 pm    Post subject: Reply with quote

Well my bad.
Fdisk is not part of binutils but of util-linux.
After downgrading from 2.25 to 2.24.2 fdisk works fine.
Gerard.
_________________
To install Gentoo I use sysrescuecd.Based on Gentoo,has firefox to browse Gentoo docs and mc to browse (and edit) files.
The same disk can be used for 32 and 64 bit installs.
You can follow the Handbook verbatim.
http://www.sysresccd.org/Download
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