Package: grub-common
Version: 2.02+dfsg1-10
Severity: normal
Bellow, steps to reproduce the bug and my interpretation.
During kernel startup, an USB wifi dongle is detected and a firmware
blob is loaded to a storage device on the dongle:
Jan 22 10:37:36 kernel: [ 5.344564] rtl8192cu: Chip version 0x10
Jan 22 10:37:36 kernel: [ 5.450195] rtl8192cu: Board Type 0
Jan 22 10:37:36 kernel: [ 5.490071] rtl_usb: rx_max_size 15360, rx_urb_num
8, in_ep 1
Jan 22 10:37:36 kernel: [ 5.509148] rtl8192cu: Loading firmware
rtlwifi/rtl8192cufw_TMSC.bin
Jan 22 10:37:36 kernel: [ 5.528607] usb 1-1.5: firmware: direct-loading
firmware rtlwifi/rtl8192cufw_TMSC.bin
Jan 22 10:37:36 kernel: [ 5.531138] scsi 6:0:0:0: Direct-Access Generic
Storage Device 0.00 PQ: 0 ANSI: 2
Jan 22 10:37:36 kernel: [ 5.531998] ieee80211 phy0: Failed to initialize
wep: -2
Jan 22 10:37:36 kernel: [ 5.532002] ieee80211 phy0: Selected rate control
algorithm 'rtl_rc'
Jan 22 10:37:36 kernel: [ 5.532188] usbcore: registered new interface driver
rtl8192cu
Jan 22 10:37:36 kernel: [ 5.554357] usb 1-1.3.2: New USB device found,
idVendor=0403, idProduct=6001, bcdDevice= 6.00
Jan 22 10:37:36 kernel: [ 5.571444] sd 6:0:0:0: [sdd] Attached SCSI
removable disk
^^^
A block device /dev/sdd is created:
# ls -l /dev/sd?
brw-rw---- 1 root disk 8, 0 Jan 22 10:37 /dev/sda
brw-rw---- 1 root disk 8, 16 Jan 22 10:37 /dev/sdb
brw-rw---- 1 root disk 8, 32 Jan 22 10:37 /dev/sdc
brw-rw---- 1 root disk 8, 48 Jan 22 10:37 /dev/sdd
^^^^^^^^
A new kernel package is installed and update-initramfs is executed.
Part of that is to execute update-grub.
grub-mkconfig looks through _all_ /dev/sd* devices and outputs error
messages:
# sh -x /usr/sbin/update-grub 2>&1 | tee update-grub.xtrace
+ set -e
+ exec grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
/dev/sdd: open failed: No medium found
/dev/sdd: open failed: No medium found
Found linux image: /boot/vmlinuz-4.19.0-1-amd64
Found initrd image: /boot/initrd.img-4.19.0-1-amd64
Found linux image: /boot/vmlinuz-4.18.0-3-amd64
Found initrd image: /boot/initrd.img-4.18.0-3-amd64
Found linux image: /boot/vmlinuz-4.18.0-2-amd64
Found initrd image: /boot/initrd.img-4.18.0-2-amd64
/dev/sdd: open failed: No medium found
/dev/sdd: open failed: No medium found
Found memtest86 image: /memtest86.bin
Found memtest86+ image: /memtest86+.bin
Found memtest86+ multiboot image: /memtest86+_multiboot.bin
done
That is quite confusing. Can anything be done to avoid that?
Cheers,
--
Cristian
