** Changed in: grub2 (Ubuntu Precise)
Status: Triaged => In Progress
** Changed in: grub2 (Ubuntu Precise)
Importance: Medium => High
** Changed in: grub2 (Ubuntu)
Importance: Medium => High
** Description changed:
+ SRU justification:
+
+ [Impact] Unable to save GRUB environment on 4K-sector disks, which means the
"recordfail" feature won't work there (i.e. the boot menu won't be forcibly
displayed if the previous boot failed). In the case at hand, this resulted in
the boot being interrupted with an error message without much harm being done;
however, it just occurred to me that this could result in data corruption if
/boot/grub/grubenv is situated in the first 1/8th of the disk, so we definitely
need to fix this.
+ [Test Case] Install on an Advanced Format disk and make sure it boots without
any error messages from GRUB.
+ [Regression Potential] Confined to the disk writing code, which is rarely
used in GRUB; in 12.04, it's only used by the gptsync, parttool, and save_env
commands, only save_env of which is widely used.
+
+ Original report follows:
+
Testing the 14.04 daily server images, I noticed a minor error popping
up at boot time. See attached photo.
I call this 'minor' because the system will still boot by itself within
10 seconds or so of the error popping up.
This only seems to happen so far with Advanced Format disks when
installed in EFI mode. I tried two different hard drives and got the
same result.
Systems that are not equipped with Advanced Format disks but installed
in EFI mode do not show this error.
Steps to reproduce:
- 1) Install 14.04 amd64 daily server build. Select the 'use entire disk'
option to auto-partition the drive.
+ 1) Install 14.04 amd64 daily server build. Select the 'use entire disk'
option to auto-partition the drive.
2) System needs to have an Advanced Format disk installed in it and needs to
be booted in EFI mode.
Actual Results:
Installation finshes fine but upon reboot the "failure writing to sector"
error pops up after the grub menu. System will boot on its own after about 10
seconds.
Expected Results:
- Boot without the error message.
+ Boot without the error message.
The disk layout on this drive according to Parted:
Model: SEAGATE ST91000640SS (scsi)
Disk /dev/sda: 1000GB
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kb 512MB 511MB
boot
2 512MB 983GB 983GB
3 983GB 1000GB 17.2GB
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https://bugs.launchpad.net/bugs/1253443
Title:
"failure writing to sector" error at boot with Advanced Format Disks
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