[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
The loopback command works just fine for me on Oracular's GRUB 2.12 UEFI build. If anyone also is still affected on GRUB 2.12, please comment. ** Changed in: grub2 (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
This needs to be confirmed to still exist in GRUB 2.12, but I don't think that this warrants "Critical" severity, downgrading to "Medium", and will look into it at some point. ** Changed in: grub2 (Ubuntu) Importance: Critical => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
*** This bug is a duplicate of bug 1878541 *** https://bugs.launchpad.net/bugs/1878541 @chrisccoulson: they have the same underlying cause, but bug #1878541 is a bug against snapd, which has nothing to do with the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
*** This bug is a duplicate of bug 1878541 *** https://bugs.launchpad.net/bugs/1878541 I suspect this is a duplicate of bug 1878541 ** This bug has been marked a duplicate of bug 1878541 Grub fails to load kernel from squashfs if mem < 1500mb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
I also confirm this bug. I used rufus in windows to create my bootable USB with ubuntu live server 20.04. I also confirm the work around to "rmmod tpm" and I'm off and running. Thank you all for making this easy to follow! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
Clean 20.04, I confirm the bug. There is a very simple way to reproduce the bug, **without even booting an O.S.** - Set your machine to boot in EFI mode - From the Grub (2.04) Menu, enter command mode (by pressing the key 'c') - Set the root to where you have your iso files: For instance: root=hd1,msdos5 - Then just list one of your Iso file: ls /path/to/iso/ubuntu-20.04-desktop-amd64.iso error out of memory That's it, just 2 commands on Grub to reproduce the bug. Obviously, since you cannot even list the iso file, there is no way you can loopback on it or boot it. I also confirm that "rmmod tpm" did the trick and is a valid workaround until a fix arrives. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
Oops!
It looks like my "{FAILED} Failed to start Login Service..." was due to
snaps eating up all my casper-rw memory.
The ISO persistent USB is booting without error as long as "rmmod tpm"
is anywhere above the menuentry when booting either BIOS or UEFI.
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loopback command hangs in 2.04 under UEFI
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[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
I notice that with BIOS mode booting, that if rmmod tpm is put in the
body of the menuentry, then there is the message "error: no such
module", and "Press any key to continue..."
If it is put anywhere above fi the computer boots without an error
message.
If it is put anywhere above the menuentry and below fi, we get scrolling
"{FAILED} Failed to start Login Service...", etc. (but I have not tried
indenting in these locations.
Booting in UEFI mode it seems that anywhere that "rmmod tpm" works in
BIOS mode, works for UEFI also.
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loopback command hangs in 2.04 under UEFI
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[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
Thanks. It worked for me when I put "rmmod tpm" inside the menuentry section, but I didn't have anything above that section. So it seems "rmmod tpm" must be one of the first things in the config file. I wonder if it would work if you put "rmmod tpm" as the 1st line, above "if loadfont..." ? I'll try moving it above "menuentry Install" in my config file from comment number 54, https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/comments/54, and see if it still works. (It makes sense that you would want to remove this module as soon as possible). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
if loadfont /boot/grub/font.pf2 ; then
set gfxmode=auto
insmod efi_gop
insmod efi_uga
insmod gfxterm
terminal_output gfxterm
rmmod tpm
fi
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
set timeout=5
menuentry "ubuntu-20.04 ISO" {
set root=(hd0,3)
set isofile="/ubuntu-20.04-desktop-amd64.iso"
loopback loop $isofile
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile
fsck.mode=skip persistent persistent-path=/ubuntu-20.04/ splash --
initrd (loop)/casper/initrd
}
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loopback command hangs in 2.04 under UEFI
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[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
C.S.Cameron, Would you please paste your grub lines here so we can get the full context? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
On a previous post I mentioned that I put `rmmod tpm` on it's own line in grub.cfg menuentry, above the "loopback loop $isofile" line and that I got "error: no such module" when booting in BIOS mode. I have discovered, (after testing the latest mkusb - unstable), that putting `rmmod tpm` up top just above the fi line allows booting ISO's in UEFI mode without getting the no such module error when booting in BIOS mode. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
Separate bug report at https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1877222 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
It appears that the reason casper-rw persistent files are not working for me is that their name has been changed in Ubuntu 20.04 to "writable" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
@ C.S.Cameron, > I will fill out a separate bug report when I get time. Please post a link here to that separate bug report. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
It appears that Persistent casper-rw files are not just working with GRUB booted ISO files in BIOS mode, they do not seem to be working with Syslinux boot drives either. I have just tested BIOS boot of a Persistent UNetbootin USB drive and there is no persistence. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
I have just noticed that casper-rw persistent files are not working with Ubuntu 20.04 when booted from an ISO file. Persistent partitions are working, however persistent partitions do not work with persistent-path and only one persistent partition is allowed per USB disk. This means that a multiboot, multipersistence USB drive is no longer possible using ISO files. Hopefully someone will point out that I am making an error somewhere. I will fill out a separate bug report when I get time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
** Changed in: grub2 (Debian) Status: Unknown => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
I did additional testing, and I can confirm that adding "rmmod tpm" does
indeed work...
See comment number 51 by Alkis
(https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/comments/51).
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
menuentry "Install" {
set isofile="/ubuntu.iso"
rmmod tpm
loopback loop (hd0,2)$isofile
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile
noprompt noeject
initrd (loop)/casper/initrd
}
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
The Busy Box error I had experienced was actually due to a bad ISO file.
I tested "rmmod tpm" on a system running Ubuntu 19.10.
I tested two official Ubuntu *.iso files:
- Ubuntu 18.04
- Ubuntu 20.04
In both cases, the system successfully booted the specified *.iso.
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loopback command hangs in 2.04 under UEFI
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[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
@Alkis Georgopoulos,
Thanks for the suggestion.
I added "rmmod tpm".
Unfortunately, it did not really help my situation...
$ sudo update-grub
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.3.0-51-generic
Found initrd image: /boot/initrd.img-5.3.0-51-generic
Found linux image: /boot/vmlinuz-5.3.0-46-generic
Found initrd image: /boot/initrd.img-5.3.0-46-generic
Adding boot menu entry for EFI firmware configuration
done
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
$ sudo nano /etc/grub.d/40_custom
$ sudo update-grub
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.3.0-51-generic
Found initrd image: /boot/initrd.img-5.3.0-51-generic
Found linux image: /boot/vmlinuz-5.3.0-46-generic
Found initrd image: /boot/initrd.img-5.3.0-46-generic
Adding boot menu entry for EFI firmware configuration
done
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
$ cat /etc/grub.d/40_custom
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type
the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "Install" {
set isofile="/ubuntu.iso"
rmmod tpm
loopback loop (hd0,2)$isofile
linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile
noprompt noeject
initrd (loop)/casper/initrd
}
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
Prior to this change, I would get a blank screen with a whirring fan.
With the above change, I do see the boot-up log messages.
But, I get a busy box...
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
BusyBox v1.301 (Ubuntu 1:1.30.1-4ubuntu4) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs) Begin: Running /scripts/casper-premount ... done.
Begin: waiting for devs... ... done.
touch /dev/.initramfs/lupin-waited-for-devs: No such file or directory
stdin: Invalid argument
done.
loop: can't get info on device /dev/loop1: No such device or address
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
I don't know why it is referencing "loop1" ?
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loopback command hangs in 2.04 under UEFI
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[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
@alkisg Thank you for the workaround, easier that installing grub 2.02 via mkusb. I put `rmmod tpm` on it's own line in grub.cfg, above the "loopback loop $isofile" line. Booting BIOS mode grub 2.02 I get "error: no such module" and then after a bit it boots okay. Booting UEFI mode grub 2.04 it boots with no error messages. Both modes go to Disk Check. Neither mode goes to the Try/Install screen when booting, nor to remove drive and press enter when quitting. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
A workaround is to run `rmmod tpm` before `loopback loop some.iso`. See the linked Debian bug for more details. Fedora isn't affected because it doesn't include tpm. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
** Bug watch added: Debian Bug tracker #959425 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959425 ** Also affects: grub2 (Debian) via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959425 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
Fedora doesn't seem to be affected. From: https://koji.fedoraproject.org/koji/buildinfo?buildID=1499982 Downloaded: https://kojipkgs.fedoraproject.org//packages/grub2/2.04/15.fc33/x86_64/grub2-efi-x64-2.04-15.fc33.x86_64.rpm Extracted: /boot/efi/EFI/fedora/grubx64.efi Tried the command: loopback loop ubuntu.iso And it didn't hang. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
Debian is affected as well. Downloaded: http://ftp.us.debian.org/debian/pool/main/g/grub2/grub-efi-amd64-bin_2.04-7_amd64.deb Extracted: /usr/lib/grub/x86_64-efi/monolithic/grubx64.efi Tried the command: loopback loop ubuntu.iso And it hangs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1851311] Re: loopback command hangs in 2.04 under UEFI
I started testing binaries from the release history page: https://launchpad.net/ubuntu/+source/grub2-signed/+publishinghistory The last working one is: https://launchpad.net/ubuntu/+source/grub2-signed/1.116 https://launchpad.net/ubuntu/+source/grub2-signed/1.116/+build/17166212/+files/grub-efi-amd64-signed_1.116+2.02+dfsg1-12ubuntu3_amd64.deb The first broken one is: https://launchpad.net/ubuntu/+source/grub2-signed/1.117 https://launchpad.net/ubuntu/+source/grub2-signed/1.117/+build/17277557/+files/grub-efi-amd64-signed_1.117+2.04-1ubuntu1_amd64.deb So indeed 2.02 works and 2.04 doesn't. I will check if the problem affects other distributions as well. ** Summary changed: - Grub 2.04 Out of memory error, No server error + loopback command hangs in 2.04 under UEFI ** Changed in: grub2 (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851311 Title: loopback command hangs in 2.04 under UEFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
