Bug#725275: initramfs-tools: hooks/resume problems
Hi. On Sat, Oct 05, 2013 at 09:27:12AM +0530, Kapil Hari Paranjape wrote: On Sat, 05 Oct 2013, Kapil Hari Paranjape wrote: The reason for this bug is a typo in /usr/share/initramfs/hooks/resume. Looking into this a bit further, I wondered why this typo should cause a problem. After all, the rest of this script generates a conf/conf.d/resume file containing what should be the correct resume device. However, what it generates is an entry like: RESUME=UUID=ZZ-ZZyy-yZZy-yZZy-Zyyy-ZyZy-yZ This may work fine if the swap device is not on LVM. If it is ... The problem is that scripts/local-top/lvm2 cannot figure out the volume group to activate in order to make the device accessible. (Or even the fact that this _is_ an LVM device!) Some more script-fu is required to check whether the resume device is of the form /dev/dm-xxx and in that case one needs to find its name by listing /dev/mapper/. That name needs to be used in order to get lvm2 to activate the volume group or logical volume. Interesting. Thanks for these details. I've tried and change the resume device in /etc/uswsusp.conf, to use a path in the form /dev/mapper/VG-swap, and now have : # grep -i resume /etc/uswsusp.conf /etc/initramfs-tools/conf.d/resume /etc/uswsusp.conf:resume device = /dev/mapper/main-swap /etc/initramfs-tools/conf.d/resume:RESUME=/dev/mapper/main-swap And guess what ? ... This works, now. Boot proceeds normally, and eventually resumes when I hibernated :-) So my guess is that uswsusp may need to use the /dev/mapper/VG-swap form (will follow-up to #724275). Maybe others don't have uswsusp installed, so YMMV. Hope this helps. Best regards, -- Olivier BERGER http://www-public.telecom-sudparis.eu/~berger_o/ - OpenPGP-Id: 2048R/5819D7E8 Ingenieur Recherche - Dept INF Institut Mines-Telecom, Telecom SudParis, Evry (France) -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#725275: initramfs-tools: hooks/resume problems
Hi, On Wed, 30 Oct 2013, Olivier Berger wrote: Hi. Interesting. Thanks for these details. I've tried and change the resume device in /etc/uswsusp.conf, to use a path in the form /dev/mapper/VG-swap, and now have : # grep -i resume /etc/uswsusp.conf /etc/initramfs-tools/conf.d/resume /etc/uswsusp.conf:resume device = /dev/mapper/main-swap /etc/initramfs-tools/conf.d/resume:RESUME=/dev/mapper/main-swap And guess what ? ... This works, now. Boot proceeds normally, and eventually resumes when I hibernated :-) I wondered why you said (in your previous mail) that uswsusp did not work after fixing the typo, since I use uswsusp too! After your latest mail (and checking my own /etc/uswsusp.conf and /etc/initramfs-tools/conf.d/resume), all is clear. An aside is that the hook with the typo does incorrect error catching. error due to typo in command != error generated by command So checking the error number should have caught this mistake! Regards, Kapil. -- -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#725275: initramfs-tools: hooks/resume problems
Package: initramfs-tools Version: 0.114 Followup-For: Bug #725275 Dear Maintainer, On Sat, 05 Oct 2013, Kapil Hari Paranjape wrote: The reason for this bug is a typo in /usr/share/initramfs/hooks/resume. Looking into this a bit further, I wondered why this typo should cause a problem. After all, the rest of this script generates a conf/conf.d/resume file containing what should be the correct resume device. However, what it generates is an entry like: RESUME=UUID=ZZ-ZZyy-yZZy-yZZy-Zyyy-ZyZy-yZ This may work fine if the swap device is not on LVM. If it is ... The problem is that scripts/local-top/lvm2 cannot figure out the volume group to activate in order to make the device accessible. (Or even the fact that this _is_ an LVM device!) Some more script-fu is required to check whether the resume device is of the form /dev/dm-xxx and in that case one needs to find its name by listing /dev/mapper/. That name needs to be used in order to get lvm2 to activate the volume group or logical volume. Regards, Kapil. -- -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
