pm: cannot find swap device, try swapon -a
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I've just rebuilt a laptop with xubuntu 18.04. I'm having issues getting hibernation to work, swapfile has been increased to slightly more than the 6GB of memory installed, and seems to be available:
swapon -s
Filename Type Size Used Priority
/swapfile file 6655996 1992 -2
When I try and hibernate I see the following messages on screen:
PM: Cannot find swap device, try swapon -a
PM: Cannot get swap writer
The syslog entries before that seem to suggest hibernation was going going OK up to then.
etc/default/grub contains:
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
Any words of wisdom gratefully received...
swap hibernate
edited May 20 at 12:18
mikewhatever
22.5k76584
asked May 20 at 11:50
Iain
62
add a comment |Â
up vote
1
down vote
favorite
I've just rebuilt a laptop with xubuntu 18.04. I'm having issues getting hibernation to work, swapfile has been increased to slightly more than the 6GB of memory installed, and seems to be available:
swapon -s
Filename Type Size Used Priority
/swapfile file 6655996 1992 -2
When I try and hibernate I see the following messages on screen:
PM: Cannot find swap device, try swapon -a
PM: Cannot get swap writer
The syslog entries before that seem to suggest hibernation was going going OK up to then.
etc/default/grub contains:
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
Any words of wisdom gratefully received...
swap hibernate
edited May 20 at 12:18
mikewhatever
22.5k76584
asked May 20 at 11:50
Iain
62
After some more digging I've updated GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="resume=/dev/sda1 resume_offset=2047" and the current complaint is "PM: Swap header not found!". I thought that was covered by the resume_offset=2047? The offset is correct. @mike Sorry, I haven't got the hang of formatting stuff yet.
– Iain
May 20 at 18:06
I'm wondering if I've been wasting my time with trying to get hibernation working; Shutdown with the "Save session for future logins" seems to have more-or-less the same functionality. Apps that were open are remembered; pages open in Firefox need to refreshed, but the URLs have been remembered...
– Iain
May 20 at 19:15
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I've just rebuilt a laptop with xubuntu 18.04. I'm having issues getting hibernation to work, swapfile has been increased to slightly more than the 6GB of memory installed, and seems to be available:
swapon -s
Filename Type Size Used Priority
/swapfile file 6655996 1992 -2
When I try and hibernate I see the following messages on screen:
PM: Cannot find swap device, try swapon -a
PM: Cannot get swap writer
The syslog entries before that seem to suggest hibernation was going going OK up to then.
etc/default/grub contains:
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
Any words of wisdom gratefully received...
swap hibernate
edited May 20 at 12:18
mikewhatever
22.5k76584
asked May 20 at 11:50
Iain
62
I've just rebuilt a laptop with xubuntu 18.04. I'm having issues getting hibernation to work, swapfile has been increased to slightly more than the 6GB of memory installed, and seems to be available:
swapon -s
Filename Type Size Used Priority
/swapfile file 6655996 1992 -2
When I try and hibernate I see the following messages on screen:
PM: Cannot find swap device, try swapon -a
PM: Cannot get swap writer
The syslog entries before that seem to suggest hibernation was going going OK up to then.
etc/default/grub contains:
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
Any words of wisdom gratefully received...
swap hibernate
edited May 20 at 12:18
mikewhatever
22.5k76584
asked May 20 at 11:50
Iain
62
edited May 20 at 12:18
mikewhatever
22.5k76584
edited May 20 at 12:18
mikewhatever
22.5k76584
edited May 20 at 12:18
mikewhatever
22.5k76584
22.5k76584
asked May 20 at 11:50
Iain
62
asked May 20 at 11:50
Iain
62
asked May 20 at 11:50
Iain
62
62
After some more digging I've updated GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="resume=/dev/sda1 resume_offset=2047" and the current complaint is "PM: Swap header not found!". I thought that was covered by the resume_offset=2047? The offset is correct. @mike Sorry, I haven't got the hang of formatting stuff yet.
– Iain
May 20 at 18:06
I'm wondering if I've been wasting my time with trying to get hibernation working; Shutdown with the "Save session for future logins" seems to have more-or-less the same functionality. Apps that were open are remembered; pages open in Firefox need to refreshed, but the URLs have been remembered...
– Iain
May 20 at 19:15
add a comment |Â
After some more digging I've updated GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="resume=/dev/sda1 resume_offset=2047" and the current complaint is "PM: Swap header not found!". I thought that was covered by the resume_offset=2047? The offset is correct. @mike Sorry, I haven't got the hang of formatting stuff yet.
– Iain
May 20 at 18:06
I'm wondering if I've been wasting my time with trying to get hibernation working; Shutdown with the "Save session for future logins" seems to have more-or-less the same functionality. Apps that were open are remembered; pages open in Firefox need to refreshed, but the URLs have been remembered...
– Iain
May 20 at 19:15
After some more digging I've updated GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="resume=/dev/sda1 resume_offset=2047" and the current complaint is "PM: Swap header not found!". I thought that was covered by the resume_offset=2047? The offset is correct. @mike Sorry, I haven't got the hang of formatting stuff yet.
– Iain
May 20 at 18:06
After some more digging I've updated GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="resume=/dev/sda1 resume_offset=2047" and the current complaint is "PM: Swap header not found!". I thought that was covered by the resume_offset=2047? The offset is correct. @mike Sorry, I haven't got the hang of formatting stuff yet.
– Iain
May 20 at 18:06
I'm wondering if I've been wasting my time with trying to get hibernation working; Shutdown with the "Save session for future logins" seems to have more-or-less the same functionality. Apps that were open are remembered; pages open in Firefox need to refreshed, but the URLs have been remembered...
– Iain
May 20 at 19:15
I'm wondering if I've been wasting my time with trying to get hibernation working; Shutdown with the "Save session for future logins" seems to have more-or-less the same functionality. Apps that were open are remembered; pages open in Firefox need to refreshed, but the URLs have been remembered...
– Iain
May 20 at 19:15
add a comment |Â
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After some more digging I've updated GRUB_CMDLINE_LINUX="" to GRUB_CMDLINE_LINUX="resume=/dev/sda1 resume_offset=2047" and the current complaint is "PM: Swap header not found!". I thought that was covered by the resume_offset=2047? The offset is correct. @mike Sorry, I haven't got the hang of formatting stuff yet.
– Iain
May 20 at 18:06
I'm wondering if I've been wasting my time with trying to get hibernation working; Shutdown with the "Save session for future logins" seems to have more-or-less the same functionality. Apps that were open are remembered; pages open in Firefox need to refreshed, but the URLs have been remembered...
– Iain
May 20 at 19:15