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Old 06-21-2010, 04:48 PM
"David C. Rankin"
 
Default New Arch Install - Swap Won't Activate - Help the clueless?

On 06/21/2010 11:35 AM, Dan McGee wrote:
> On Mon, Jun 21, 2010 at 11:33 AM, David C. Rankin
> <drankinatty@suddenlinkmail.com> wrote:
>> Guys,
>>
>> I'm laughing at myself for being unable to get swap activated. Initially, when
>> I breezed through the install, I forgot to set /dev/sdb6 to type 82 so the box
>> came up with swap off (2G of ram so not much of an issue)
>>
>> But now, I want to activate it and I get an error activating swap that frankly,
>> I have never seen before:
>>
>> [11:27 dcrgx2:~] # swapon -a
>> swapon: /dev/sdb6: read swap header failed: Invalid argument
>>
>> Huh?
>
> man mkswap
>

Thanks Dan,

The clueless found a clue:

[11:27 dcrgx2:~] # swapon -a
swapon: /dev/sdb6: read swap header failed: Invalid argument
[11:30 dcrgx2:~] # mkswap /dev/sdb6
Setting up swapspace version 1, size = 1951860 KiB
no label, UUID=f50f8c63-9657-4e0b-aca6-ea2250b5193f
[11:46 dcrgx2:~] # vi /etc/fstab
[11:47 dcrgx2:~] # swapon -a

Oh, brother......

--
David C. Rankin, J.D.,P.E.
Rankin Law Firm, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
Telephone: (936) 715-9333
Facsimile: (936) 715-9339
www.rankinlawfirm.com
 
Old 06-21-2010, 04:49 PM
Nilesh Govindarajan
 
Default New Arch Install - Swap Won't Activate - Help the clueless?

On 06/21/2010 10:03 PM, David C. Rankin wrote:

Guys,

I'm laughing at myself for being unable to get swap activated. Initially, when
I breezed through the install, I forgot to set /dev/sdb6 to type 82 so the box
came up with swap off (2G of ram so not much of an issue)

But now, I want to activate it and I get an error activating swap that frankly,
I have never seen before:

[11:27 dcrgx2:~] # swapon -a
swapon: /dev/sdb6: read swap header failed: Invalid argument

Huh?

Here are the current details of the install:

[11:26 dcrgx2:~] # cat /proc/partitions
major minor #blocks name

8 16 488386584 sdb
8 17 1 sdb1
8 21 144522 sdb5
8 22 1951866 sdb6
8 23 29294496 sdb7
8 24 456992991 sdb8
8 0 39062500 sda
8 1 40131 sda1
8 2 39005820 sda2

[11:26 dcrgx2:~] # fdisk -l /dev/sdb

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005cd36

Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 5 Extended
/dev/sdb5 * 1 18 144522 83 Linux
/dev/sdb6 19 261 1951866 82 Linux swap / Solaris
/dev/sdb7 262 3908 29294496 83 Linux
/dev/sdb8 3909 60801 456992991 83 Linux


#
# /etc/fstab: static file system information
#
#<file system> <dir> <type> <options> <dump> <pass>
devpts /dev/pts devpts defaults 0 0
shm /dev/shm tmpfs nodev,nosuid 0 0

#/dev/cdrom /media/cd auto ro,user,noauto,unhide 0 0
#/dev/dvd /media/dvd auto ro,user,noauto,unhide 0 0
#/dev/fd0 /media/fl auto user,noauto 0 0

/dev/sdb6 swap swap defaults 0 0
UUID=30247a6b-c639-4180-9b44-3535ade87de2 /home ext4 defaults 0 1
UUID=73356263-d92f-4914-bb0d-07f5611b5709 / ext3 defaults 0 1
UUID=de71b9f1-a954-4d41-84c2-926de89d1edb /boot ext3 defaults 0 1

It looks to me like swap should activate. What am I missing? Thanks for any
insight you can lend here.




mkswap /dev/sdb6
echo "/dev/sdb6 swap swap defaults 0 0" >> /etc/fstab

--
Regards,
Nilesh Govindarajan
Facebook: http://www.facebook.com/nilesh.gr
Twitter: http://twitter.com/nileshgr
Website: http://www.itech7.com
Cheap and Reliable VPS Hosting: http://j.mp/arHk5e
 
Old 06-21-2010, 04:49 PM
Nilesh Govindarajan
 
Default New Arch Install - Swap Won't Activate - Help the clueless?

On 06/21/2010 10:19 PM, Nilesh Govindarajan wrote:

On 06/21/2010 10:03 PM, David C. Rankin wrote:

Guys,

I'm laughing at myself for being unable to get swap activated.
Initially, when
I breezed through the install, I forgot to set /dev/sdb6 to type 82 so
the box
came up with swap off (2G of ram so not much of an issue)

But now, I want to activate it and I get an error activating swap that
frankly,
I have never seen before:

[11:27 dcrgx2:~] # swapon -a
swapon: /dev/sdb6: read swap header failed: Invalid argument

Huh?

Here are the current details of the install:

[11:26 dcrgx2:~] # cat /proc/partitions
major minor #blocks name

8 16 488386584 sdb
8 17 1 sdb1
8 21 144522 sdb5
8 22 1951866 sdb6
8 23 29294496 sdb7
8 24 456992991 sdb8
8 0 39062500 sda
8 1 40131 sda1
8 2 39005820 sda2

[11:26 dcrgx2:~] # fdisk -l /dev/sdb

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005cd36

Device Boot Start End Blocks Id System
/dev/sdb1 1 60801 488384001 5 Extended
/dev/sdb5 * 1 18 144522 83 Linux
/dev/sdb6 19 261 1951866 82 Linux swap / Solaris
/dev/sdb7 262 3908 29294496 83 Linux
/dev/sdb8 3909 60801 456992991 83 Linux


#
# /etc/fstab: static file system information
#
#<file system> <dir> <type> <options> <dump> <pass>
devpts /dev/pts devpts defaults 0 0
shm /dev/shm tmpfs nodev,nosuid 0 0

#/dev/cdrom /media/cd auto ro,user,noauto,unhide 0 0
#/dev/dvd /media/dvd auto ro,user,noauto,unhide 0 0
#/dev/fd0 /media/fl auto user,noauto 0 0

/dev/sdb6 swap swap defaults 0 0
UUID=30247a6b-c639-4180-9b44-3535ade87de2 /home ext4 defaults 0 1
UUID=73356263-d92f-4914-bb0d-07f5611b5709 / ext3 defaults 0 1
UUID=de71b9f1-a954-4d41-84c2-926de89d1edb /boot ext3 defaults 0 1

It looks to me like swap should activate. What am I missing? Thanks
for any
insight you can lend here.




mkswap /dev/sdb6
echo "/dev/sdb6 swap swap defaults 0 0" >> /etc/fstab


swapon -av

--
Regards,
Nilesh Govindarajan
Facebook: http://www.facebook.com/nilesh.gr
Twitter: http://twitter.com/nileshgr
Website: http://www.itech7.com
Cheap and Reliable VPS Hosting: http://j.mp/arHk5e
 
Old 06-21-2010, 05:02 PM
"David C. Rankin"
 
Default New Arch Install - Swap Won't Activate - Help the clueless?

>>
>> mkswap /dev/sdb6
>> echo "/dev/sdb6 swap swap defaults 0 0" >> /etc/fstab
>>
> swapon -av
>

Thanks to all. That loud 'POP!' you heard was the CRI being cured.

(for the curious, CRI=Cranal Rectal Inversion)

--
David C. Rankin, J.D.,P.E.
Rankin Law Firm, PLLC
510 Ochiltree Street
Nacogdoches, Texas 75961
Telephone: (936) 715-9333
Facsimile: (936) 715-9339
www.rankinlawfirm.com
 

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