On 06/26/2010 06:53 PM, Gerardo Exequiel Pozzi wrote:
On 06/26/2010 06:41 PM, Gerardo Exequiel Pozzi wrote:
On 06/26/2010 06:03 PM, Gerardo Exequiel Pozzi wrote:
On 06/26/2010 05:22 PM, Thomas Bächler wrote:
I cannot boot the image via CD. udev does not create /dev/disk/ symlinks for CD devices (any more?). That's why we had the archiso_early hook in the first place. How did you make yours boot? We need an extra udev rule for this to work as far as I can see, otherwise udev won't scan CDs.
memdisk works fine though.
oops, only tested booting as disk. Yes, booting as cdrom fails.
The issue is that 60-persistent-storage.rules that does not match cdrom devices like in previous version of udev, so blkid is not executed. The problem is on cdrom_id helper program, is does not dump some data for udev rules ( ID_CDROM_MEDIA_SESSION_NEXT=, ID_CDROM_MEDIA_SESSION_COUNT=, ID_CDROM_MEDIA_TRACK_COUNT= ID_CDROM_MEDIA_TRACK_COUNT_DATA= )
I tested on real machine and booting from cdrom works OK. And also tested under Virtualbox and also works fine booting from cdrom (iso). So if you testwas on qemu, I guess that something is wrong with new cdrom_id (there are several changes) and qemu.
http://git.kernel.org/?p=linux/hotplug/udev.git;a=history;f=extras/cdrom_id/...
Some tests:
1) boot current instllation media 2) /lib/udev/cdrom_id --debug /dev/sr0 and works OK 3) update to latest udev 4) execute (2) then FAIL
# /lib/udev/cdrom_id --debug /dev/sr0 main: probing: '/dev/sr0' cd_inquiry: INQUIRY: [QEMU ][QEMU DVD-ROM ][0.12] cd_profiles: GET CONFIGURATION: size of features buffer 0x0010 cd_profiles: GET CONFIGURATION: feature 'profiles', with 2 entries feature_profiles: profile 0x10 dvd_rom feature_profiles: profile 0x08 cd_rom cd_profiles: current profile 0x08 cd_profiles: profile 0x08 media_cd_rom info_scsi_cmd_err: READ DISC INFORMATION failed with SK=5h/ASC=20h/ACQ=00h ID_CDROM=1 ID_CDROM_CD=1 ID_CDROM_DVD=1 ID_CDROM_MRW=1 ID_CDROM_MRW_W=1 ID_CDROM_MEDIA=1 ID_CDROM_MEDIA_CD=1
This is how looks correctly # /lib/udev/cdrom_id --debug /dev/sr0 main: probing: '/dev/sr0' cd_inquiry: INQUIRY: [QEMU ][QEMU DVD-ROM ][0.12] cd_profiles: GET CONFIGURATION: number of profiles 20 cd_profiles: current profile 0x08 cd_media_toc: READ TOC: len: 20 cd_media_toc: track=1 info=0x4(data) start_block=0 cd_media_toc: last track 1 starts at block 0 cd_media_info: disk type d8 ID_CDROM=1 ID_CDROM_MRW=1 ID_CDROM_MRW_W=1 ID_CDROM_MEDIA=1 ID_CDROM_MEDIA_CD=1 ID_CDROM_MEDIA_SESSION_NEXT=38876 ID_CDROM_MEDIA_SESSION_COUNT=15884 ID_CDROM_MEDIA_TRACK_COUNT=48900 ID_CDROM_MEDIA_TRACK_COUNT_DATA=1
OK, the problem is in this commit [#1], reverting back fixes the issue, ID_CDROM_MEDIA_TRACK_COUNT_DATA appears again then udev rule work again. Another way is reverting this commit [#2], error is reported but ID_CDROM_MEDIA_TRACK_COUNT_DATA is returned. # ./cdrom_id --debug /dev/sr0 main: probing: '/dev/sr0' cd_inquiry: INQUIRY: [QEMU ][QEMU DVD-ROM ][0.12] cd_profiles: GET CONFIGURATION: size of features buffer 0x0010 cd_profiles: GET CONFIGURATION: feature 'profiles', with 2 entries feature_profiles: profile 0x10 dvd_rom feature_profiles: profile 0x08 cd_rom cd_profiles: current profile 0x08 cd_profiles: profile 0x08 media_cd_rom cd_media_info: disk type 00 cd_media_toc: READ TOC: len: 20 cd_media_toc: track=1 info=0x4(data) start_block=0 cd_media_toc: last track 1 starts at block 0 ID_CDROM=1 ID_CDROM_CD=1 ID_CDROM_DVD=1 ID_CDROM_MRW=1 ID_CDROM_MRW_W=1 ID_CDROM_MEDIA=1 ID_CDROM_MEDIA_CD=1 ID_CDROM_MEDIA_TRACK_COUNT_DATA=1 [#1] http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=58e178894bfc0... [#2] http://git.kernel.org/?p=linux/hotplug/udev.git;a=commitdiff;h=30e3b1a0d3a3e... -- Gerardo Exequiel Pozzi \cos^2\alpha + \sin^2\alpha = 1