Submitted by Locutus on Fri, 06/28/2013 - 09:32
I want to create a swap partition with the Webmin "Paritions on local disks" module, using FDISK, since using PARTED doesn't work for that (error message about "don't use parted to create filesystems..." occurs).
I know I did that successfully in the past, but now, when I try to create a primary Linux Swap partition on an empty (virtual) disk, the GUI hangs, a process "/sbin/fdisk /dev/sdb" is visible in ps, and the Webmin debug log shows:
3290 [28/Jun/2013 16:19:13.521792] root MYIP proc CMD "cmd=/sbin/fdisk /dev/sdb uid= gid="
I guess something's missing there... :) I tried Webmin versions 1.631 and 1.630.
Status:
Closed (fixed)
Comments
Submitted by JamieCameron on Fri, 06/28/2013 - 12:25 Comment #1
If you SSH in and run
fdisk /dev/sdbmanually, are you able to create a new partition?Submitted by Locutus on Fri, 06/28/2013 - 13:03 Comment #2
If I type just "fdisk /dev/sdb", it says: "Command (m for help):".
But when I enter the command that Webmin (assumedly, as per debug log and atop) performed, "/sbin/fdisk /dev/sdb uid= gid=", fdisk just prints its Usage information and exits. Incorrect parameters? "man fdisk" doesn't say anything about "uid=" or "gid=".
In case this is helpful:
Submitted by JamieCameron on Fri, 06/28/2013 - 13:23 Comment #3
What if after running
fdisk /dev/sdbyou use it to create an additional partition?If this works, please let me know what commands you ran inside fdisk, and what they output.
Submitted by Locutus on Fri, 06/28/2013 - 16:00 Comment #4
Okay, I played a bit with that command, and here's the screendump. I'm a bit surprised though that you'd need that info, because I know with high certainty that I used that Webmin module before to create partitions... Did you break it somehow? ;)
Command (m for help): m Command action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only) Command (m for help): p Disk /dev/sdc: 5368 MB, 5368709120 bytes 149 heads, 8 sectors/track, 8796 cylinders, total 10485760 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 Disk identifier: 0x00047369 Device Boot Start End Blocks Id System /dev/sdc1 2048 10483711 5240832 82 Linux swap / Solaris Command (m for help): n Partition type: p primary (1 primary, 0 extended, 3 free) e extended Select (default p): p Partition number (1-4, default 2): 2 First sector (10483712-10485759, default 10483712): Using default value 10483712 Last sector, +sectors or +size{K,M,G} (10483712-10485759, default 10485759): Using default value 10485759 Command (m for help): p Disk /dev/sdc: 5368 MB, 5368709120 bytes 149 heads, 8 sectors/track, 8796 cylinders, total 10485760 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 Disk identifier: 0x00047369 Device Boot Start End Blocks Id System /dev/sdc1 2048 10483711 5240832 82 Linux swap / Solaris /dev/sdc2 10483712 10485759 1024 83 Linux Command (m for help): t Partition number (1-4): 2 Hex code (type L to list codes): L 0 Empty 24 NEC DOS 81 Minix / old Lin bf Solaris 1 FAT12 27 Hidden NTFS Win 82 Linux swap / So c1 DRDOS/sec (FAT- 2 XENIX root 39 Plan 9 83 Linux c4 DRDOS/sec (FAT- 3 XENIX usr 3c PartitionMagic 84 OS/2 hidden C: c6 DRDOS/sec (FAT- 4 FAT16 <32M 40 Venix 80286 85 Linux extended c7 Syrinx 5 Extended 41 PPC PReP Boot 86 NTFS volume set da Non-FS data 6 FAT16 42 SFS 87 NTFS volume set db CP/M / CTOS / . 7 HPFS/NTFS/exFAT 4d QNX4.x 88 Linux plaintext de Dell Utility 8 AIX 4e QNX4.x 2nd part 8e Linux LVM df BootIt 9 AIX bootable 4f QNX4.x 3rd part 93 Amoeba e1 DOS access a OS/2 Boot Manag 50 OnTrack DM 94 Amoeba BBT e3 DOS R/O b W95 FAT32 51 OnTrack DM6 Aux 9f BSD/OS e4 SpeedStor c W95 FAT32 (LBA) 52 CP/M a0 IBM Thinkpad hi eb BeOS fs e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a5 FreeBSD ee GPT f W95 Ext'd (LBA) 54 OnTrackDM6 a6 OpenBSD ef EFI (FAT-12/16/ 10 OPUS 55 EZ-Drive a7 NeXTSTEP f0 Linux/PA-RISC b 11 Hidden FAT12 56 Golden Bow a8 Darwin UFS f1 SpeedStor 12 Compaq diagnost 5c Priam Edisk a9 NetBSD f4 SpeedStor 14 Hidden FAT16 <3 61 SpeedStor ab Darwin boot f2 DOS secondary 16 Hidden FAT16 63 GNU HURD or Sys af HFS / HFS+ fb VMware VMFS 17 Hidden HPFS/NTF 64 Novell Netware b7 BSDI fs fc VMware VMKCORE 18 AST SmartSleep 65 Novell Netware b8 BSDI swap fd Linux raid auto 1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid fe LANstep 1c Hidden W95 FAT3 75 PC/IX be Solaris boot ff BBT 1e Hidden W95 FAT1 80 Old Minix Hex code (type L to list codes): 82 Changed system type of partition 2 to 82 (Linux swap / Solaris) Command (m for help):Don't forget to do "w" at the end (write and exit), which I omitted here.
Submitted by JamieCameron on Fri, 06/28/2013 - 16:38 Comment #5
Ok, so that looks fine. And also it seems that the swap partition was already there?
What kind of VM was this, and which Linux distro and version is it running?
Submitted by Locutus on Fri, 06/28/2013 - 17:15 Comment #6
The swap partition was already there because I had already created it manually, since I needed it. :) For distro see my post #2. Can you specify "what kind"?
Submitted by JamieCameron on Fri, 06/28/2013 - 18:04 Comment #7
By what kind, I mean is the VM Xen, KVM or something else?
Submitted by Locutus on Sat, 06/29/2013 - 03:24 Comment #8
Oh, it's VMware ESXi 5.
Submitted by JamieCameron on Sat, 06/29/2013 - 20:01 Comment #9
I haven't been able to re-produce this problem, perhaps because I don't have a VMware ESXi install to test on.
Any chance I could login to one of your VMs that is showing this problem?
Submitted by Locutus on Sun, 06/30/2013 - 04:49 Comment #10
Yes, certainly! I'll test it again later when I'm on the PC. IIRC it occurs on my experimental VM, I'll send you root access via Virtualmin.
To add to this, I was able to create a partition just fine yesterday on another VMware VM with Ubuntu 10. Maybe the fdisk syntax has changed from 10 to 12?
EDIT: Root login was sent via Virtualmin "Support Login Privileges".
Submitted by JamieCameron on Mon, 07/01/2013 - 01:20 Comment #11
Thanks for the login - looks like there are a couple of issues here :
On your system, fdisk is by default using sectors instead of cylinders. I fixed this though.
The first cylinder is numbered 2 instead of 1 .. and trying to create a partition starting at cylinder 1 fails! I am still digging into this one.
Submitted by JamieCameron on Tue, 07/02/2013 - 21:43 Comment #12
The next release of Webmin will handle this case properly.
Submitted by Locutus on Wed, 07/03/2013 - 02:04 Comment #13
Thumbs up, as usual! :)
Submitted by Issues on Wed, 07/17/2013 - 04:11 Comment #14
Automatically closed -- issue fixed for 2 weeks with no activity.