casper: /scripts/casper-premount/20isoscan: line 59: try_mount: not found

[Benoit THIBAUD]

I tried the daily build of xubuntu eoan 2019 08 26.

I can't launch it. Tried with this 2 grub's menus:
menuentry ".. Xubuntu Daily" {
 iso_path="/isos/eoan-desktop-amd64.iso"
 export iso_path
 search --set=root --file $iso_path
 loopback loop $iso_path
 root=(loop)
 configfile /boot/grub/grub.cfg
 loopback --delete loop
}
menuentry ".. Xubuntu .... test daily" {
 iso_path="/isos/eoan-desktop-amd64.iso"
 loopback loop $iso_path
 linux (loop)/casper/vmlinuz locale=fr_FR bootkbd=fr console-setup/layoutcode=fr iso-scan/filename=$iso_path boot=casper file=/cdrom/preseed/xubuntu.seed noprompt quiet splash --
 initrd (loop)/casper/initrd
}
The error about the casper script is from the second menu. But in both cases it can't mount the iso file.

[John Little (john-b-little)]

I was trying the Kubuntu eoan daily build. I had a look in the squashfs. In the initramfs-tools/scripts/casper-premount/20iso_scan script, it invokes the find_path function, which is defined in scripts/lupin-helpers. It's line 59 of that script that has the try_mount invocation. In my disco iso the try_mount function is defined in scripts/casper-helpers, but the eoan version does not.

[John Little (john-b-little)]

Just today downloaded the Kubuntu eoan-desktop-amd64.iso for 2019-09-26, and did an iso boot into it with no problem. So it seems fixed for me.

[Dimitri John Ledkov (xnox)]

casper (1.418) eoan; urgency=medium

  * scripts/casper-helpers: Reintroduce try_mount() function, which was in
    use by (at least) VMWare in a custom installer scenario (LP: #1845535)

 -- Adam Conrad <email address hidden> Thu, 26 Sep 2019 11:00:40 -0600

[Benoit THIBAUD (frombenny)]

Status should be -> fix released (like in the duplicate bug #1845535)
I tested it, now it's working.