Public bug reported: Hello. I know that this problem has been the subject of several malfunctions but this incident occurs in a rather unusual context.
I have a computer equipped with a bios EFI. So I do not use cdrom drive or usb key to install ubuntu. I decompress the ISO file and put the content in a partition FA32. then I choose to boot using the boot file. It works very well for almost four years see https://forum.ubuntu-fr.org/viewtopic.php?id=1725191 and https://forum.ubuntu-fr.org/viewtopic.php?id=1954341 I use this procedure every six months. The last time, it was in January 2018 with the daily version of version 18.04 ( https://forum.ubuntu-fr.org/viewtopic.php?pid=21862486#p21862486 ) As usual I had noted "sudo umount -lv /cdrom " I did not think to install the 18.4.0 version of April 2018. I do now with the version 18.04.1 of July 2018. So I use the torrent technique to download the iso. I still control the md5sum. ( f430da8fa59d2f5f4262518e3c177246 *ubuntu-18.04.1-desktop-amd64.iso ) I transfer in my partition fat32 (I even put the ESP flag) and I boote I have the 4 lines of choice Try ubuntu without installing Install ubuntu Oem Install (for manufacturer) Check disk for deffect I have to wait about five minutes to get the message mentioned in the title "unable to find a medium containing a live file system". It's the same thing when choosing the other three options The contents of the casper.log file consist of a repeated line 121 times. "/init: line 7: can't open /dev/sr0: No medium found" in iniramfs , the command ls -ls give 0 drwxr-xr-x 14 4540 dev 0 drwx------ 2 40 root 8 -rwxr-xr-x 1 6643 init 0 drwxr-xr-x 4 80 usr 0 drwxr-xr-x 11 260 lib 0 drwxr-xr-x 5 100 var 0 drwxr-xr-x 2 2440 bin 0 drwxr-xr-x 12 380 scripts 0 drwxr-xr-x 3 140 conf 0 drwxr-xr-x 2 60 lib64 0 drwxr-xr-x 11 400 etc 0 drwxr-xr-x 6 120 run 0 drwxr-xr-x 2 500 sbin 0 dr-xr-xr-x 13 0 sys 0 dr-xr-xr-x 98 0 proc 4 drwxr-xr-x 3 4096 tmp 0 drwxr-xr-x 2 40 cdrom 0 -rw-r--r-- 1 0 casper.vars 8 -rw-r--r-- 1 6294 casper.log I restarted with the option debug = vt but I can not understand the false manipulation that I made. Is this a re-engineering of the software? I will attach the trace file and the list of files present in the boot partition of the hard disk ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1784221 Title: unable to find a medium containing a live file system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1784221/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
