[pve-devel] [PATCH installer] installer-common: do not drop nomodeset from target kernel cmdline

[pve-devel] [PATCH installer] installer-common: do not drop nomodeset from target kernel cmdline

[Stoiko Ivanov]

dropping the `nomodeset` here makes little sense:
* currently users need to explicitly add it when booting the kernel,
  which is probably only done when the system needs it to show any
  output when booting
* it was originally removed, because the installer had a grub-entry
  that explicitly disabled it - and the reasoning was to remove
  everything installer-specific - but I assume that it should cause
  less problems to keep it in place in all cases.

This was also partially pointed to in:
https://bugzilla.proxmox.com/show_bug.cgi?id=4230#c38

Fixes: a02a78a865fc37f7bdea077a4421319b84c635c9
Suggested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
minimally tested by redoing the change in the second debug shell and
installing in a VM w/ secure boot disabled (nomodeset breaks the
debugshells if secureboot is enabled)

one remaining question is if we want to also preserve the vga=\S+
parameter:
* we set it for the TUI-installer options (to vga=788) - so this might
  warrant removal
* while I assume that most cases where the TUI installer is used are
  either due to UX-preference, or to workaround issues with x.org -
  there might be cases where keeping it present ensures that the
  target system has a sensible/readabl console at all
* if someone explicitly set it, it will get removed, so keeping all
  options apart from vga=788 might be a sensible improvment in any
  case

will gladly send a follow-up for this

 Proxmox/Install/Config.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Proxmox/Install/Config.pm b/Proxmox/Install/Config.pm
index ae70093..49c247b 100644
--- a/Proxmox/Install/Config.pm
+++ b/Proxmox/Install/Config.pm
@@ -44,7 +44,7 @@ my sub parse_kernel_cmdline {
     }
 
     $cmdline =~ s/(?:BOOT_IMAGE|root|ramdisk_size|splash|vga)=\S+\s?//gi;
-    $cmdline =~ s/ro|rw|quiet|proxdebug|proxtui|nomodeset//gi;
+    $cmdline =~ s/ro|rw|quiet|proxdebug|proxtui//gi;
 
     $cfg->{target_cmdline}= $cmdline;
 
-- 
2.39.5



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