Re: New Grub2 verses Debian 9.5 -boots slow and strange?

[Pascal Hambourg]

Le 21/10/2018 à 01:11, address@hidden a écrit :
> On Sat, 20 Oct 2018, Pascal Hambourg wrote:
> > No swap indeed. But there are two unformatted partitions (or with 
> > unknown format). Intriguing. Can you check with
> >
> > file -s /dev/sda2 /dev/sdb5
> > wipefs /dev/sda2
> > wipefs /dev/sdb5
> >
> > > address@hidden:/etc/initramfs-tools/conf.d# cat resume
> > > RESUME=UUID=b66a9345-332d-4abf-a081-351ab08ed7f9
> >
> > So there once was a swap with this UUID. But it cannot be found any 
> > more. Maybe /etc/fstab still contains information about it.
> >
> > You have basically two options :
> > - remove the swap references in resume and fstab and run 
> > update-initramfs -u
> > - or recreate a swap with the same UUID in sdb5
>
> Hi Pascal,
>
> I am nervous about running wipefs. Especially since its man page does 
> not match is operation. plain wipefs doesn't show anything while the 
> manpage says it should.

Dont worry about wipefs : without -o or -a, it does not erase anything 
and just looks for metadata signatures. Sometimes it is better than file 
at finding signatures.

> file -s thinks the swap partitions are data?

Meaning that it found nothing.

>    fdisk thinks there are swap partitions.

fdisk displays the partition type identifier recorded in the partition 
table, which does not have to match the actual partition contents. But 
then we can assume they are swap partitions which should be formatted as 
swap.

> Device     Boot    Start      End  Sectors  Size Id Type
> /dev/sdb5       19840338 30700214 10859877  5.2G 82 Linux swap / Solaris
(...)
> Device     Boot     Start       End   Sectors  Size Id Type
> /dev/sda2       838862848 843057151   4194304    2G 82 Linux swap / Solaris

As I suggested, if you want to use sdb5 as swap you can format it with 
the UUID present in /etc/initramfs-tools/conf.d/resume :

mkswap --uuid b66a9345-332d-4abf-a081-351ab08ed7f9 /dev/sdb5

Did you check if /etc/fstab contains any references to swap partitions ?

Also, I assume that sda2 was used by the system installed on sda and 
maybe this system also misses its swap partition ?